deployment/docker/rules: add RequestErrorsToUnexpectedPaths alert which focuses on errors without

path set (i.e. invalid authentication)

.github/workflows/build.yml

@@ -65,7 +65,7 @@ jobs:
             arch: amd64
     steps:
       - name: Code checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           persist-credentials: false
 

.github/workflows/changelog-linter.yml

@@ -13,7 +13,7 @@ jobs:
       contents: read
     runs-on: 'ubuntu-latest'
     steps:
-      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           # needed for proper diff
           fetch-depth: 0

.github/workflows/check-commit-signed.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           fetch-depth: 0  # we need full history for commit verification
           persist-credentials: false

.github/workflows/check-licenses.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Code checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           persist-credentials: false
 

.github/workflows/codeql-analysis-go.yml

@@ -31,7 +31,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           persist-credentials: false
 
@@ -54,14 +54,14 @@ jobs:
           restore-keys: go-artifacts-${{ runner.os }}-codeql-analyze-${{ steps.go.outputs.go-version }}-
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@8aad20d150bbac5944a9f9d289da16a4b0d87c1e  # v4.36.2
+        uses: github/codeql-action/init@e46ed2cbd01164d986452f91f178727624ae40d7  # v4.35.3
         with:
           languages: go
 
       - name: Autobuild
-        uses: github/codeql-action/autobuild@8aad20d150bbac5944a9f9d289da16a4b0d87c1e  # v4.36.2
+        uses: github/codeql-action/autobuild@e46ed2cbd01164d986452f91f178727624ae40d7  # v4.35.3
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@8aad20d150bbac5944a9f9d289da16a4b0d87c1e  # v4.36.2
+        uses: github/codeql-action/analyze@e46ed2cbd01164d986452f91f178727624ae40d7  # v4.35.3
         with:
           category: 'language:go'

.github/workflows/docs.yaml

@@ -18,13 +18,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Code checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           path: __vm
           persist-credentials: false
 
       - name: Checkout private code
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           repository: VictoriaMetrics/vmdocs
           token: ${{ secrets.VM_BOT_GH_TOKEN }}

.github/workflows/test.yml

@@ -34,7 +34,7 @@ jobs:
     runs-on: 'vm-runner'
     steps:
       - name: Code checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           persist-credentials: false
 
@@ -79,7 +79,7 @@ jobs:
 
     steps:
       - name: Code checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           persist-credentials: false
 
@@ -106,7 +106,7 @@ jobs:
 
     steps:
       - name: Code checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           persist-credentials: false
 

.github/workflows/vmui.yml

@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Code checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0  # v7.0.0
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           persist-credentials: false
 

.golangci.yml

@@ -23,4 +23,3 @@ linters:
         text: 'SA(4003|1019|5011):'
     paths:
       - ^app/vmui/
-      - app/vmui/packages/vmui/node_modules/

Makefile

@@ -447,7 +447,7 @@ vet:
 	go vet ./app/...
 	go vet ./apptest/...
 
-check-all: fmt vet golangci-lint
+check-all: fmt vet golangci-lint govulncheck
 
 clean-checkers: remove-golangci-lint remove-govulncheck
 
@@ -471,9 +471,8 @@ test-full-386:
 
 apptest:
 	$(MAKE) victoria-metrics-race vmagent-race vmalert-race vmauth-race vmctl-race vmbackup-race vmrestore-race
-	go test ./apptest/... -skip="^Test(Cluster|Mixed|Legacy).*"
+	go test ./apptest/... -skip="^Test(Cluster|Legacy).*"
 
-# App tests for legacy indexDB
 apptest-legacy: victoria-metrics-race vmbackup-race vmrestore-race
 	OS=$$(uname | tr '[:upper:]' '[:lower:]'); \
 	ARCH=$$(uname -m | tr '[:upper:]' '[:lower:]' | sed 's/x86_64/amd64/'); \
@@ -490,22 +489,6 @@ apptest-legacy: victoria-metrics-race vmbackup-race vmrestore-race
 	VMSTORAGE_V1_132_0_PATH=$${DIR}/vmstorage-prod \
 	go test ./apptest/tests -run="^TestLegacySingle.*"
 
-# App tests for mixed setups where vmsingle and vmcluster coexist.
-apptest-mixed: victoria-metrics-race
-	OS=$$(uname | tr '[:upper:]' '[:lower:]'); \
-	ARCH=$$(uname -m | tr '[:upper:]' '[:lower:]' | sed 's/x86_64/amd64/'); \
-	VERSION=v1.147.0; \
-	VMSINGLE=victoria-metrics-$${OS}-$${ARCH}-$${VERSION}.tar.gz; \
-	VMCLUSTER=victoria-metrics-$${OS}-$${ARCH}-$${VERSION}-cluster.tar.gz; \
-	URL=https://github.com/VictoriaMetrics/VictoriaMetrics/releases/download/$${VERSION}; \
-	DIR=/tmp/$${VERSION}; \
-	test -d $${DIR} || (mkdir $${DIR} && \
-		curl --output-dir /tmp -LO $${URL}/$${VMSINGLE} && tar xzf /tmp/$${VMSINGLE} -C $${DIR} && \
-		curl --output-dir /tmp -LO $${URL}/$${VMCLUSTER} && tar xzf /tmp/$${VMCLUSTER} -C $${DIR} \
-	); \
-	VMSELECT_PATH=$${DIR}/vmselect-prod \
-	go test ./apptest/tests -run="^TestMixed.*"
-
 benchmark:
 	go test -run=NO_TESTS -bench=. ./lib/...
 	go test -run=NO_TESTS -bench=. ./app/...

app/victoria-metrics/main.go

@@ -89,7 +89,7 @@ func main() {
 	}
 	logger.Infof("starting VictoriaMetrics at %q...", listenAddrs)
 	startTime := time.Now()
-	vmstorage.Init(*vmselectMaxConcurrentRequests, *vmselectMaxQueueDuration, promql.ResetRollupResultCacheIfNeeded)
+	vmstorage.Init(*vmselectMaxConcurrentRequests, promql.ResetRollupResultCacheIfNeeded)
 	vmselect.Init(*vmselectMaxConcurrentRequests, *vmselectMaxQueueDuration)
 	vminsertcommon.StartIngestionRateLimiter(*maxIngestionRate)
 	vminsert.Init()

app/vmagent/influx/request_handler.go

@@ -51,7 +51,7 @@ func InsertHandlerForHTTP(at *auth.Token, req *http.Request) error {
 	}
 	q := req.URL.Query()
 	precision := q.Get("precision")
-	// Read db tag from https://docs.influxdata.com/influxdb/v1/api/write/#operation/PostWrite
+	// Read db tag from https://docs.influxdata.com/influxdb/v1.7/tools/api/#write-http-endpoint
 	db := q.Get("db")
 	encoding := req.Header.Get("Content-Encoding")
 	isStreamMode := req.Header.Get("Stream-Mode") == "1"

app/vmagent/main.go

@@ -462,9 +462,7 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
 		return true
 	case "/prometheus/metric-relabel-debug", "/metric-relabel-debug":
 		promscrapeMetricRelabelDebugRequests.Inc()
-		rwGlobalRelabelConfigs := remotewrite.GetRemoteWriteRelabelConfigString()
-		rwURLRelabelConfigss := remotewrite.GetURLRelabelConfigString()
-		promscrape.WriteMetricRelabelDebug(w, r, rwGlobalRelabelConfigs, rwURLRelabelConfigss)
+		promscrape.WriteMetricRelabelDebug(w, r)
 		return true
 	case "/prometheus/target-relabel-debug", "/target-relabel-debug":
 		promscrapeTargetRelabelDebugRequests.Inc()

app/vmagent/opentelemetry/request_handler.go

@@ -63,7 +63,6 @@ func insertRows(at *auth.Token, tss []prompb.TimeSeries, mms []prompb.MetricMeta
 
 	rowsTotal := 0
 	tssDst := ctx.WriteRequest.Timeseries[:0]
-	mmsDst := ctx.WriteRequest.Metadata[:0]
 	labels := ctx.Labels[:0]
 	samples := ctx.Samples[:0]
 	for i := range tss {
@@ -83,19 +82,7 @@ func insertRows(at *auth.Token, tss []prompb.TimeSeries, mms []prompb.MetricMeta
 
 	var metadataTotal int
 	if prommetadata.IsEnabled() {
-		for i := range mms {
-			mm := &mms[i]
-			mmsDst = append(mmsDst, prompb.MetricMetadata{
-				MetricFamilyName: mm.MetricFamilyName,
-				Help:             mm.Help,
-				Type:             mm.Type,
-				Unit:             mm.Unit,
-
-				AccountID: mm.AccountID,
-				ProjectID: mm.ProjectID,
-			})
-		}
-		ctx.WriteRequest.Metadata = mmsDst
+		ctx.WriteRequest.Metadata = mms
 		metadataTotal = len(mms)
 	}
 

app/vmagent/remotewrite/relabel.go

@@ -12,7 +12,6 @@ import (
 	"github.com/VictoriaMetrics/metrics"
 	"gopkg.in/yaml.v2"
 
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fasttime"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
@@ -83,16 +82,6 @@ func WriteRelabelConfigData(w io.Writer) {
 	_, _ = w.Write(*p)
 }
 
-// GetRemoteWriteRelabelConfigString returns -remoteWrite.relabelConfig contents in string
-func GetRemoteWriteRelabelConfigString() string {
-	var bb bytesutil.ByteBuffer
-	WriteRelabelConfigData(&bb)
-	if bb.Len() == 0 {
-		return ""
-	}
-	return string(bb.B)
-}
-
 // WriteURLRelabelConfigData writes -remoteWrite.urlRelabelConfig contents to w
 func WriteURLRelabelConfigData(w io.Writer) {
 	p := remoteWriteURLRelabelConfigData.Load()
@@ -119,24 +108,6 @@ func WriteURLRelabelConfigData(w io.Writer) {
 	_, _ = w.Write(d)
 }
 
-// GetURLRelabelConfigString returns -remoteWrite.urlRelabelConfig contents in []string
-func GetURLRelabelConfigString() []string {
-	p := remoteWriteURLRelabelConfigData.Load()
-	if p == nil {
-		return nil
-	}
-	var ss []string
-	for i := range *remoteWriteURLs {
-		cfgData := (*p)[i]
-		var cfgDataBytes []byte
-		if cfgData != nil {
-			cfgDataBytes, _ = yaml.Marshal(cfgData)
-		}
-		ss = append(ss, string(cfgDataBytes))
-	}
-	return ss
-}
-
 func reloadRelabelConfigs() {
 	rcs := allRelabelConfigs.Load()
 	if !rcs.isSet() {

app/vmagent/remotewrite/remotewrite.go

@@ -571,14 +571,6 @@ func tryPushMetadataToRemoteStorages(at *auth.Token, rwctxs []*remoteWriteCtx, m
 			mm.ProjectID = at.ProjectID
 		}
 	}
-	tmp := mms[:0]
-	for _, mm := range mms {
-		if timeserieslimits.IsMetricMetadataExceeding(&mm) {
-			continue
-		}
-		tmp = append(tmp, mm)
-	}
-	mms = tmp
 	// Do not shard metadata even if -remoteWrite.shardByURL is set, just replicate it among rwctxs.
 	// Since metadata is usually small and there is no guarantee that metadata can be sent to
 	// the same remote storage with the corresponding metrics.
@@ -1064,7 +1056,7 @@ func (rwctx *remoteWriteCtx) TryPushTimeSeries(tss []prompb.TimeSeries, forceDro
 
 	copyTimeSeriesIfNeeded := func() {
 		if v == nil {
-			v = tssPool.Get().(*[]prompb.TimeSeries)
+			v := tssPool.Get().(*[]prompb.TimeSeries)
 			tss = append(*v, tss...)
 		}
 	}

app/vmalert-tool/unittest/recording.go

@@ -6,6 +6,7 @@ import (
 	"net/url"
 	"reflect"
 	"sort"
+	"time"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/datasource"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
@@ -93,3 +94,10 @@ Outer:
 	}
 	return
 }
+
+func durationToTime(pd *promutil.Duration) time.Time {
+	if pd == nil {
+		return time.Time{}
+	}
+	return time.UnixMilli(pd.Duration().Milliseconds())
+}

app/vmalert-tool/unittest/unittest.go

@@ -44,19 +44,12 @@ import (
 var (
 	storagePath    string
 	httpListenAddr string
-	// Insert series from 2000-01-01T00:00:00.
-	testStartTime          = time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC)
+	// insert series from 1970-01-01T00:00:00
+	testStartTime          = time.Unix(0, 0).UTC()
 	testLogLevel           = "ERROR"
 	disableAlertgroupLabel bool
 )
 
-func durationToTime(pd *promutil.Duration) time.Time {
-	if pd == nil {
-		return testStartTime
-	}
-	return testStartTime.Add(pd.Duration())
-}
-
 const (
 	testStoragePath = "vmalert-unittest"
 )
@@ -289,8 +282,7 @@ func processFlags() {
 
 func setUp() {
 	const maxConcurrentRequests = 4
-	maxQueueDuration := 5 * time.Second
-	vmstorage.Init(maxConcurrentRequests, maxQueueDuration, promql.ResetRollupResultCacheIfNeeded)
+	vmstorage.Init(maxConcurrentRequests, promql.ResetRollupResultCacheIfNeeded)
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer cancel()
 	readyCheckFunc := func() bool {

app/vmalert/config/testdata/rules/rules-replay-good.rules

@@ -18,7 +18,7 @@ groups:
     concurrency: 2
     rules:
       - alert: RequestErrorsToAPI
-        expr: increase(vm_http_request_errors_total[5m]) > 0
+        expr: increase(vm_http_request_errors_total{path=~".+"}[5m]) > 0
         for: 15m
         labels:
           severity: warning
@@ -37,4 +37,4 @@ groups:
           dashboard: "http://localhost:3000/d/wNf0q_kZk?viewPanel=67&var-instance={{ $labels.instance }}"
           summary: "Too many logs printed for job \"{{ $labels.job }}\" ({{ $labels.instance }})"
           description: "Logging rate for job \"{{ $labels.job }}\" ({{ $labels.instance }}) is {{ $value }} for last 15m.\n
-           Worth to check logs for specific error messages."
+           Worth to check logs for specific error messages."

app/vmalert/rule/group.go

@@ -97,7 +97,6 @@ type groupMetrics struct {
 	iterationMissed   *metrics.Counter
 	iterationReset    *metrics.Counter
 	iterationInterval *metrics.Gauge
-	iterationLimit    *metrics.Gauge
 }
 
 // merges group rule labels into result map
@@ -337,12 +336,6 @@ func (g *Group) Init() {
 		i := g.Interval.Seconds()
 		return i
 	})
-	g.metrics.iterationLimit = g.metrics.set.NewGauge(fmt.Sprintf(`vmalert_rule_group_results_limit{%s}`, labels), func() float64 {
-		g.mu.RLock()
-		limit := g.Limit
-		g.mu.RUnlock()
-		return float64(limit)
-	})
 	for i := range g.Rules {
 		g.Rules[i].registerMetrics(g.metrics.set)
 	}

app/vmauth/auth_config.go

@@ -44,10 +44,6 @@ var (
 		"See https://docs.victoriametrics.com/victoriametrics/vmauth/#load-balancing for details")
 	defaultLoadBalancingPolicy = flag.String("loadBalancingPolicy", "least_loaded", "The default load balancing policy to use for backend urls specified inside url_prefix section. "+
 		"Supported policies: least_loaded, first_available. See https://docs.victoriametrics.com/victoriametrics/vmauth/#load-balancing")
-	defaultBackendLoadBalancingPolicy = flag.String("backendLoadBalancingPolicy", "", "The default load balancing policy to use for selecting among the targets discovered for a single backend url "+
-		"specified inside url_prefix section when -discoverBackendIPs or discover_backend_ips is set. Supported policies: least_loaded, first_available. "+
-		"If not set, then the value of -loadBalancingPolicy (or the effective load_balancing_policy for the given user / url_map) is used. "+
-		"See https://docs.victoriametrics.com/victoriametrics/vmauth/#load-balancing")
 	defaultMergeQueryArgs = flagutil.NewArrayString("mergeQueryArgs", "An optional list of client query arg names, which must be merged with args at backend urls. "+
 		"The rest of client query args are replaced by the corresponding query args from backend urls for security reasons; "+
 		"see https://docs.victoriametrics.com/victoriametrics/vmauth/#query-args-handling")
@@ -77,23 +73,22 @@ type UserInfo struct {
 	Username    string     `yaml:"username,omitempty"`
 	Password    string     `yaml:"password,omitempty"`
 
-	URLPrefix                  *URLPrefix  `yaml:"url_prefix,omitempty"`
-	DiscoverBackendIPs         *bool       `yaml:"discover_backend_ips,omitempty"`
-	URLMaps                    []URLMap    `yaml:"url_map,omitempty"`
-	DumpRequestOnErrors        bool        `yaml:"dump_request_on_errors,omitempty"`
-	HeadersConf                HeadersConf `yaml:",inline"`
-	MaxConcurrentRequests      int         `yaml:"max_concurrent_requests,omitempty"`
-	DefaultURL                 *URLPrefix  `yaml:"default_url,omitempty"`
-	RetryStatusCodes           []int       `yaml:"retry_status_codes,omitempty"`
-	LoadBalancingPolicy        string      `yaml:"load_balancing_policy,omitempty"`
-	BackendLoadBalancingPolicy string      `yaml:"backend_load_balancing_policy,omitempty"`
-	MergeQueryArgs             []string    `yaml:"merge_query_args,omitempty"`
-	DropSrcPathPrefixParts     *int        `yaml:"drop_src_path_prefix_parts,omitempty"`
-	TLSCAFile                  string      `yaml:"tls_ca_file,omitempty"`
-	TLSCertFile                string      `yaml:"tls_cert_file,omitempty"`
-	TLSKeyFile                 string      `yaml:"tls_key_file,omitempty"`
-	TLSServerName              string      `yaml:"tls_server_name,omitempty"`
-	TLSInsecureSkipVerify      *bool       `yaml:"tls_insecure_skip_verify,omitempty"`
+	URLPrefix              *URLPrefix  `yaml:"url_prefix,omitempty"`
+	DiscoverBackendIPs     *bool       `yaml:"discover_backend_ips,omitempty"`
+	URLMaps                []URLMap    `yaml:"url_map,omitempty"`
+	DumpRequestOnErrors    bool        `yaml:"dump_request_on_errors,omitempty"`
+	HeadersConf            HeadersConf `yaml:",inline"`
+	MaxConcurrentRequests  int         `yaml:"max_concurrent_requests,omitempty"`
+	DefaultURL             *URLPrefix  `yaml:"default_url,omitempty"`
+	RetryStatusCodes       []int       `yaml:"retry_status_codes,omitempty"`
+	LoadBalancingPolicy    string      `yaml:"load_balancing_policy,omitempty"`
+	MergeQueryArgs         []string    `yaml:"merge_query_args,omitempty"`
+	DropSrcPathPrefixParts *int        `yaml:"drop_src_path_prefix_parts,omitempty"`
+	TLSCAFile              string      `yaml:"tls_ca_file,omitempty"`
+	TLSCertFile            string      `yaml:"tls_cert_file,omitempty"`
+	TLSKeyFile             string      `yaml:"tls_key_file,omitempty"`
+	TLSServerName          string      `yaml:"tls_server_name,omitempty"`
+	TLSInsecureSkipVerify  *bool       `yaml:"tls_insecure_skip_verify,omitempty"`
 
 	MetricLabels map[string]string `yaml:"metric_labels,omitempty"`
 
@@ -123,10 +118,9 @@ type AccessLogFilters struct {
 }
 
 func (ui *UserInfo) logRequest(r *http.Request, userName string, statusCode int, duration time.Duration) {
-	if ui == nil || ui.AccessLog == nil {
+	if ui.AccessLog == nil {
 		return
 	}
-
 	filters := ui.AccessLog.Filters
 	if filters != nil && len(filters.SkipStatusCodes) > 0 {
 		if slices.Contains(filters.SkipStatusCodes, statusCode) {
@@ -140,17 +134,6 @@ func (ui *UserInfo) logRequest(r *http.Request, userName string, statusCode int,
 		r.Host, requestURI, statusCode, remoteAddr, r.UserAgent(), r.Referer(), duration.Milliseconds(), userName)
 }
 
-// hasAnyURLs reports whether ui has at least one backend URL route configured.
-// It is used only for unauthorized_user config section, since other users
-// must always have either URLPrefix or URLMaps set.
-func (ui *UserInfo) hasAnyURLs() bool {
-	if ui == nil {
-		return false
-	}
-
-	return ui.URLPrefix != nil || len(ui.URLMaps) > 0 || ui.DefaultURL != nil
-}
-
 // HeadersConf represents config for request and response headers.
 type HeadersConf struct {
 	RequestHeaders     []*Header `yaml:"headers,omitempty"`
@@ -278,9 +261,6 @@ type URLMap struct {
 	// LoadBalancingPolicy is load balancing policy among UrlPrefix backends.
 	LoadBalancingPolicy string `yaml:"load_balancing_policy,omitempty"`
 
-	// BackendLoadBalancingPolicy is load balancing policy used for selecting among the targets discovered for a single UrlPrefix backend.
-	BackendLoadBalancingPolicy string `yaml:"backend_load_balancing_policy,omitempty"`
-
 	// MergeQueryArgs is a list of client query args, which must be merged with the existing backend query args.
 	//
 	// The rest of client query args are replaced with the corresponding backend query args for security reasons.
@@ -337,12 +317,9 @@ type URLPrefix struct {
 	// requests are re-tried on other backend urls for these http response status codes
 	retryStatusCodes []int
 
-	// load balancing policy used for selecting a backend among busOriginal entries
+	// load balancing policy used
 	loadBalancingPolicy string
 
-	// load balancing policy used for selecting a target among the discovered targets of a single busOriginal entry
-	backendLoadBalancingPolicy string
-
 	// the list of client query args, which must be merged with backend query args.
 	//
 	// By default backend query args replace all the client query args for security reasons.
@@ -357,10 +334,6 @@ type URLPrefix struct {
 	// n is an atomic counter, which is used for balancing load among available backends.
 	n atomic.Uint32
 
-	// backendGroupCounters holds one atomic counter per busOriginal entry, used for balancing load
-	// among the discovered targets of that particular backend.
-	backendGroupCounters []atomic.Uint32
-
 	// the list of backend urls
 	//
 	// the list can be dynamically updated if `discover_backend_ips` option is set.
@@ -388,52 +361,11 @@ func (up *URLPrefix) setLoadBalancingPolicy(loadBalancingPolicy string) error {
 	}
 }
 
-func (up *URLPrefix) setBackendLoadBalancingPolicy(backendLoadBalancingPolicy string) error {
-	switch backendLoadBalancingPolicy {
-	case "", // empty string is equivalent to least_loaded
-		"least_loaded",
-		"first_available":
-		up.backendLoadBalancingPolicy = backendLoadBalancingPolicy
-		return nil
-	default:
-		return fmt.Errorf("unexpected backend_load_balancing_policy: %q; want least_loaded or first_available", backendLoadBalancingPolicy)
-	}
-}
-
 type backendURLs struct {
-	bhc    backendHealthCheck
-	n      *atomic.Uint32
-	groups []*backendURLGroup
-}
-
-// backendURLGroup holds the backend urls discovered for a single busOriginal entry.
-type backendURLGroup struct {
-	n   *atomic.Uint32
+	bhc backendHealthCheck
 	bus []*backendURL
 }
 
-func (g *backendURLGroup) isBroken() bool {
-	for _, bu := range g.bus {
-		if !bu.isBroken() {
-			return false
-		}
-	}
-	return true
-}
-
-func (g *backendURLGroup) minConcurrentRequests() int32 {
-	minReqs := int32(math.MaxInt32)
-	for _, bu := range g.bus {
-		if bu.isBroken() {
-			continue
-		}
-		if n := bu.concurrentRequests.Load(); n < minReqs {
-			minReqs = n
-		}
-	}
-	return minReqs
-}
-
 type backendHealthCheck struct {
 	ctx context.Context
 	// mu protects fields below
@@ -460,30 +392,22 @@ func (bhc *backendHealthCheck) stop() {
 	bhc.wg.Wait()
 }
 
-func newBackendURLs(n *atomic.Uint32) *backendURLs {
+func newBackendURLs() *backendURLs {
 	ctx, cancel := context.WithCancel(context.Background())
 	return &backendURLs{
 		bhc: backendHealthCheck{
 			ctx:    ctx,
 			cancel: cancel,
 		},
-		n: n,
 	}
 }
 
-func (bus *backendURLs) addGroup(urls []*url.URL, n *atomic.Uint32) {
-	g := &backendURLGroup{
-		n:   n,
-		bus: make([]*backendURL, len(urls)),
-	}
-	for i, u := range urls {
-		g.bus[i] = &backendURL{
-			url:             u,
-			bhc:             &bus.bhc,
-			hasPlaceHolders: hasAnyPlaceholders(u),
-		}
-	}
-	bus.groups = append(bus.groups, g)
+func (bus *backendURLs) add(u *url.URL) {
+	bus.bus = append(bus.bus, &backendURL{
+		url:             u,
+		bhc:             &bus.bhc,
+		hasPlaceHolders: hasAnyPlaceholders(u),
+	})
 }
 
 func (bus *backendURLs) stopHealthChecks() {
@@ -559,11 +483,7 @@ func (bu *backendURL) put() {
 
 func (up *URLPrefix) getBackendsCount() int {
 	bus := up.bus.Load()
-	n := 0
-	for _, g := range bus.groups {
-		n += len(g.bus)
-	}
-	return n
+	return len(bus.bus)
 }
 
 // getBackendURL returns the backendURL depending on the load balance policy.
@@ -575,24 +495,14 @@ func (up *URLPrefix) getBackendURL() *backendURL {
 	up.discoverBackendAddrsIfNeeded()
 
 	bus := up.bus.Load()
-	if len(bus.groups) == 0 {
+	if len(bus.bus) == 0 {
 		return nil
 	}
 
-	var g *backendURLGroup
 	if up.loadBalancingPolicy == "first_available" {
-		g = bus.getFirstAvailable()
-	} else {
-		g = bus.getLeastLoaded()
+		return getFirstAvailableBackendURL(bus.bus)
 	}
-	if len(g.bus) == 0 {
-		return nil
-	}
-
-	if up.backendLoadBalancingPolicy == "first_available" {
-		return g.getFirstAvailable()
-	}
-	return g.getLeastLoaded()
+	return getLeastLoadedBackendURL(bus.bus, &up.n)
 }
 
 func (up *URLPrefix) discoverBackendAddrsIfNeeded() {
@@ -665,22 +575,19 @@ func (up *URLPrefix) discoverBackendAddrsIfNeeded() {
 	}
 	cancel()
 
-	// generate new backendURLs for the resolved IPs, one group per busOriginal entry
-	busNew := newBackendURLs(&up.n)
-	for i, bu := range up.busOriginal {
+	// generate new backendURLs for the resolved IPs
+	busNew := newBackendURLs()
+	for _, bu := range up.busOriginal {
 		host := bu.Hostname()
-		addrs := hostToAddrs[host]
-		urls := make([]*url.URL, len(addrs))
-		for j, addr := range addrs {
+		for _, addr := range hostToAddrs[host] {
 			buCopy := *bu
 			buCopy.Host = addr
-			urls[j] = &buCopy
+			busNew.add(&buCopy)
 		}
-		busNew.addGroup(urls, &up.backendGroupCounters[i])
 	}
 
 	bus := up.bus.Load()
-	if areEqualBackendURLGroups(bus.groups, busNew.groups) {
+	if areEqualBackendURLs(bus.bus, busNew.bus) {
 		return
 	}
 
@@ -689,18 +596,6 @@ func (up *URLPrefix) discoverBackendAddrsIfNeeded() {
 	bus.stopHealthChecks()
 }
 
-func areEqualBackendURLGroups(a, b []*backendURLGroup) bool {
-	if len(a) != len(b) {
-		return false
-	}
-	for i, g := range a {
-		if !areEqualBackendURLs(g.bus, b[i].bus) {
-			return false
-		}
-	}
-	return true
-}
-
 func areEqualBackendURLs(a, b []*backendURL) bool {
 	if len(a) != len(b) {
 		return false
@@ -714,12 +609,11 @@ func areEqualBackendURLs(a, b []*backendURL) bool {
 	return true
 }
 
-// getFirstAvailable returns the first available backendURL in g, which isn't broken.
-// If all backendURLs in g are broken, then returns the first one.
+// getFirstAvailableBackendURL returns the first available backendURL, which isn't broken.
+// If all backendURLs are broken, then returns the first backendURL.
 //
 // backendURL.put() must be called on the returned backendURL after the request is complete.
-func (g *backendURLGroup) getFirstAvailable() *backendURL {
-	bus := g.bus
+func getFirstAvailableBackendURL(bus []*backendURL) *backendURL {
 	bu := bus[0]
 	if !bu.isBroken() {
 		// Fast path - send the request to the first url.
@@ -742,14 +636,11 @@ func (g *backendURLGroup) getFirstAvailable() *backendURL {
 	return bu
 }
 
-// getLeastLoaded returns a non-broken backendURL in g with the lowest number of concurrent requests.
-// If all backendURLs in g are broken, then returns the first one.
+// getLeastLoadedBackendURL returns a non-broken backendURL with the lowest number of concurrent requests.
+// If all backendURLs are broken, then returns the first backendURL.
 //
 // backendURL.put() must be called on the returned backendURL after the request is complete.
-func (g *backendURLGroup) getLeastLoaded() *backendURL {
-	bus := g.bus
-	atomicCounter := g.n
-
+func getLeastLoadedBackendURL(bus []*backendURL, atomicCounter *atomic.Uint32) *backendURL {
 	firstBu := bus[0]
 	if len(bus) == 1 {
 		firstBu.get()
@@ -801,62 +692,6 @@ func (g *backendURLGroup) getLeastLoaded() *backendURL {
 	return buMin
 }
 
-// getFirstAvailable returns the first backendURLGroup in bus, which has at least a single non-broken backend url.
-// If all groups are fully broken, then returns the first one.
-func (bus *backendURLs) getFirstAvailable() *backendURLGroup {
-	groups := bus.groups
-	g := groups[0]
-	if !g.isBroken() {
-		// Fast path - use the first group.
-		return g
-	}
-
-	// Slow path - the first group is temporarily unavailable. Fall back to the remaining groups.
-	for i := 1; i < len(groups); i++ {
-		if !groups[i].isBroken() {
-			return groups[i]
-		}
-	}
-
-	// All groups are unavailable, then return the first one, it could help increase the success rate of the requests.
-	return g
-}
-
-// getLeastLoaded returns a non-broken backendURLGroup in bus with the lowest number of concurrent requests
-// among its non-broken backend urls. If all groups are broken, then returns the first one.
-func (bus *backendURLs) getLeastLoaded() *backendURLGroup {
-	groups := bus.groups
-	atomicCounter := bus.n
-	firstGroup := groups[0]
-	if len(groups) == 1 {
-		return firstGroup
-	}
-
-	n := atomicCounter.Add(1) - 1
-	gMinIdx := n % uint32(len(groups))
-	minRequests := groups[gMinIdx].minConcurrentRequests()
-	for i := uint32(1); i < uint32(len(groups)); i++ {
-		idx := (n + i) % uint32(len(groups))
-		g := groups[idx]
-		if g.isBroken() {
-			continue
-		}
-
-		reqs := g.minConcurrentRequests()
-		if reqs < minRequests || groups[gMinIdx].isBroken() {
-			gMinIdx = idx
-			minRequests = reqs
-		}
-	}
-	gMin := groups[gMinIdx]
-	if gMin.isBroken() {
-		// If all groups are broken, then returns the first group.
-		return firstGroup
-	}
-	atomicCounter.CompareAndSwap(n+1, gMinIdx+1)
-	return gMin
-}
-
 // UnmarshalYAML unmarshals up from yaml.
 func (up *URLPrefix) UnmarshalYAML(f func(any) error) error {
 	var v any
@@ -1148,11 +983,8 @@ func parseAuthConfig(data []byte) (*AuthConfig, error) {
 		if err := parseJWTPlaceholdersForUserInfo(ui, false); err != nil {
 			return nil, err
 		}
-
-		if ui.hasAnyURLs() {
-			if err := ui.initURLs(); err != nil {
-				return nil, err
-			}
+		if err := ui.initURLs(); err != nil {
+			return nil, err
 		}
 
 		metricLabels, err := ui.getMetricLabels()
@@ -1274,7 +1106,6 @@ func (ui *UserInfo) getMetricLabels() (string, error) {
 func (ui *UserInfo) initURLs() error {
 	retryStatusCodes := defaultRetryStatusCodes.Values()
 	loadBalancingPolicy := *defaultLoadBalancingPolicy
-	backendLoadBalancingPolicy := *defaultBackendLoadBalancingPolicy
 	mergeQueryArgs := *defaultMergeQueryArgs
 	dropSrcPathPrefixParts := 0
 	discoverBackendIPs := *discoverBackendIPsGlobal
@@ -1284,9 +1115,6 @@ func (ui *UserInfo) initURLs() error {
 	if ui.LoadBalancingPolicy != "" {
 		loadBalancingPolicy = ui.LoadBalancingPolicy
 	}
-	if ui.BackendLoadBalancingPolicy != "" {
-		backendLoadBalancingPolicy = ui.BackendLoadBalancingPolicy
-	}
 	if len(ui.MergeQueryArgs) != 0 {
 		mergeQueryArgs = ui.MergeQueryArgs
 	}
@@ -1308,14 +1136,6 @@ func (ui *UserInfo) initURLs() error {
 		if err := up.setLoadBalancingPolicy(loadBalancingPolicy); err != nil {
 			return err
 		}
-		// backend_load_balancing_policy defaults to the effective load_balancing_policy for backward compatibility.
-		blbp := backendLoadBalancingPolicy
-		if blbp == "" {
-			blbp = loadBalancingPolicy
-		}
-		if err := up.setBackendLoadBalancingPolicy(blbp); err != nil {
-			return err
-		}
 		up.mergeQueryArgs = mergeQueryArgs
 	}
 	if ui.DefaultURL != nil {
@@ -1336,7 +1156,6 @@ func (ui *UserInfo) initURLs() error {
 		}
 		rscs := retryStatusCodes
 		lbp := loadBalancingPolicy
-		blbp := backendLoadBalancingPolicy
 		mqa := mergeQueryArgs
 		dsp := dropSrcPathPrefixParts
 		dbd := discoverBackendIPs
@@ -1346,9 +1165,6 @@ func (ui *UserInfo) initURLs() error {
 		if e.LoadBalancingPolicy != "" {
 			lbp = e.LoadBalancingPolicy
 		}
-		if e.BackendLoadBalancingPolicy != "" {
-			blbp = e.BackendLoadBalancingPolicy
-		}
 		if len(e.MergeQueryArgs) != 0 {
 			mqa = e.MergeQueryArgs
 		}
@@ -1362,13 +1178,6 @@ func (ui *UserInfo) initURLs() error {
 		if err := e.URLPrefix.setLoadBalancingPolicy(lbp); err != nil {
 			return err
 		}
-		// backend_load_balancing_policy defaults to the effective load_balancing_policy for backward compatibility.
-		if blbp == "" {
-			blbp = lbp
-		}
-		if err := e.URLPrefix.setBackendLoadBalancingPolicy(blbp); err != nil {
-			return err
-		}
 		e.URLPrefix.mergeQueryArgs = mqa
 		e.URLPrefix.dropSrcPathPrefixParts = dsp
 		e.URLPrefix.discoverBackendIPs = dbd
@@ -1483,12 +1292,10 @@ func (up *URLPrefix) sanitizeAndInitialize() error {
 		up.busOriginal[i] = puNew
 	}
 
-	up.backendGroupCounters = make([]atomic.Uint32, len(up.busOriginal))
-
-	// Initialize up.bus with a single-element group per busOriginal entry.
-	bus := newBackendURLs(&up.n)
-	for i, bu := range up.busOriginal {
-		bus.addGroup([]*url.URL{bu}, &up.backendGroupCounters[i])
+	// Initialize up.bus
+	bus := newBackendURLs()
+	for _, bu := range up.busOriginal {
+		bus.add(bu)
 	}
 	up.bus.Store(bus)
 

app/vmauth/auth_config_test.go

@@ -2,13 +2,11 @@ package main
 
 import (
 	"bytes"
-	"context"
 	"fmt"
 	"net"
 	"net/http"
 	"net/url"
 	"strings"
-	"sync/atomic"
 	"testing"
 	"time"
 
@@ -843,7 +841,7 @@ func TestGetLeastLoadedBackendURL(t *testing.T) {
 	up.loadBalancingPolicy = "least_loaded"
 
 	pbus := up.bus.Load()
-	bus := pbus.groups[0].bus
+	bus := pbus.bus
 
 	fn := func(ns ...int) {
 		t.Helper()
@@ -915,7 +913,7 @@ func TestBrokenBackend(t *testing.T) {
 	})
 	up.loadBalancingPolicy = "least_loaded"
 	pbus := up.bus.Load()
-	bus := pbus.groups[0].bus
+	bus := pbus.bus
 
 	// explicitly mark one of the backends as broken
 	bus[1].setBroken()
@@ -938,7 +936,7 @@ func TestDiscoverBackendIPsWithIPV6(t *testing.T) {
 
 		up.discoverBackendAddrsIfNeeded()
 		pbus := up.bus.Load()
-		bus := pbus.groups[0].bus
+		bus := pbus.bus
 
 		if len(bus) != 1 {
 			t.Fatalf("expected url list to be of size 1; got %d instead", len(bus))
@@ -998,104 +996,6 @@ func TestDiscoverBackendIPsWithIPV6(t *testing.T) {
 
 }
 
-func TestAreEqualBackendURLGroups(t *testing.T) {
-	newGroup := func(hosts ...string) *backendURLGroup {
-		g := &backendURLGroup{}
-		for _, h := range hosts {
-			g.bus = append(g.bus, &backendURL{url: &url.URL{Host: h}})
-		}
-		return g
-	}
-
-	f := func(a, b []*backendURLGroup, expected bool) {
-		t.Helper()
-		if got := areEqualBackendURLGroups(a, b); got != expected {
-			t.Fatalf("unexpected result; got %v; want %v", got, expected)
-		}
-	}
-
-	// identical grouping
-	f(
-		[]*backendURLGroup{newGroup("10.0.0.1", "10.0.0.2"), newGroup("10.0.0.3")},
-		[]*backendURLGroup{newGroup("10.0.0.1", "10.0.0.2"), newGroup("10.0.0.3")},
-		true,
-	)
-
-	// different number of groups
-	f(
-		[]*backendURLGroup{newGroup("10.0.0.1")},
-		[]*backendURLGroup{newGroup("10.0.0.1"), newGroup("10.0.0.2")},
-		false,
-	)
-
-	// the flattened address sequence is unchanged, but an address moved across the group boundary
-	f(
-		[]*backendURLGroup{newGroup("10.0.0.1", "10.0.0.2"), newGroup("10.0.0.3")},
-		[]*backendURLGroup{newGroup("10.0.0.1"), newGroup("10.0.0.2", "10.0.0.3")},
-		false,
-	)
-
-	// genuinely different content
-	f(
-		[]*backendURLGroup{newGroup("10.0.0.1")},
-		[]*backendURLGroup{newGroup("10.0.0.9")},
-		false,
-	)
-}
-
-func TestDiscoverBackendAddrsIfNeededDetectsGroupBoundaryShift(t *testing.T) {
-	customResolver := &fakeResolver{
-		Resolver: &net.Resolver{},
-		lookupIPAddrResults: map[string][]net.IPAddr{
-			"zonea": {
-				{IP: net.ParseIP("10.0.0.1")},
-				{IP: net.ParseIP("10.0.0.2")},
-			},
-			"zoneb": {
-				{IP: net.ParseIP("10.0.0.3")},
-			},
-		},
-	}
-	origResolver := netutil.Resolver
-	netutil.Resolver = customResolver
-	defer func() {
-		netutil.Resolver = origResolver
-	}()
-
-	up := mustParseURLs([]string{"http://zonea", "http://zoneb"})
-	up.discoverBackendIPs = true
-
-	up.discoverBackendAddrsIfNeeded()
-	bus := up.bus.Load()
-	if len(bus.groups) != 2 || len(bus.groups[0].bus) != 2 || len(bus.groups[1].bus) != 1 {
-		t.Fatalf("unexpected initial grouping: zonea=%d zoneb=%d", len(bus.groups[0].bus), len(bus.groups[1].bus))
-	}
-
-	// Simulate 10.0.0.2 moving from zonea to zoneb. The flattened address sequence
-	// stays [10.0.0.1, 10.0.0.2, 10.0.0.3], but the group boundaries shift, so the
-	// rediscovery must still be picked up.
-	customResolver.lookupIPAddrResults["zonea"] = []net.IPAddr{
-		{IP: net.ParseIP("10.0.0.1")},
-	}
-	customResolver.lookupIPAddrResults["zoneb"] = []net.IPAddr{
-		{IP: net.ParseIP("10.0.0.2")},
-		{IP: net.ParseIP("10.0.0.3")},
-	}
-	up.nextDiscoveryDeadline.Store(0)
-	up.discoverBackendAddrsIfNeeded()
-
-	bus = up.bus.Load()
-	if len(bus.groups) != 2 {
-		t.Fatalf("unexpected groups count after rediscovery: %d", len(bus.groups))
-	}
-	if len(bus.groups[0].bus) != 1 || bus.groups[0].bus[0].url.Host != "10.0.0.1:" {
-		t.Fatalf("unexpected zonea group after rediscovery: %v", bus.groups[0].bus)
-	}
-	if len(bus.groups[1].bus) != 2 {
-		t.Fatalf("unexpected zoneb group size after rediscovery; got %d; want 2", len(bus.groups[1].bus))
-	}
-}
-
 func TestLogRequest(t *testing.T) {
 	ui := &UserInfo{AccessLog: &AccessLog{}}
 
@@ -1141,8 +1041,7 @@ func TestGetFirstAvailableBackend(t *testing.T) {
 			}
 			bus[i].broken.Store(broken[i])
 		}
-		g := &backendURLGroup{bus: bus}
-		bu := g.getFirstAvailable()
+		bu := getFirstAvailableBackendURL(bus)
 		if bu == nil {
 			t.Fatalf("unexpected nil backend")
 		}
@@ -1159,195 +1058,6 @@ func TestGetFirstAvailableBackend(t *testing.T) {
 
 }
 
-func newTestGroup(broken ...bool) *backendURLGroup {
-	ctx, cancel := context.WithCancel(context.Background())
-	bhc := &backendHealthCheck{
-		ctx:    ctx,
-		cancel: cancel,
-	}
-	g := &backendURLGroup{
-		bus: make([]*backendURL, len(broken)),
-	}
-	for i, b := range broken {
-		g.bus[i] = &backendURL{
-			url: &url.URL{Host: fmt.Sprintf("target-%d", i)},
-			bhc: bhc,
-		}
-		g.bus[i].broken.Store(b)
-	}
-	return g
-}
-
-func TestGetFirstAvailableGroup(t *testing.T) {
-	// the first group is available
-	bus := &backendURLs{groups: []*backendURLGroup{newTestGroup(false), newTestGroup(false)}}
-	if g := bus.getFirstAvailable(); g != bus.groups[0] {
-		t.Fatalf("expecting the first group to be returned")
-	}
-
-	// the first group is fully broken - falls back to the second one
-	bus = &backendURLs{groups: []*backendURLGroup{newTestGroup(true), newTestGroup(false)}}
-	if g := bus.getFirstAvailable(); g != bus.groups[1] {
-		t.Fatalf("expecting the second group to be returned")
-	}
-
-	// the first group has a non-broken target - it is still considered available
-	bus = &backendURLs{groups: []*backendURLGroup{newTestGroup(true, false), newTestGroup(false)}}
-	if g := bus.getFirstAvailable(); g != bus.groups[0] {
-		t.Fatalf("expecting the first group to be returned, since it has a non-broken target")
-	}
-
-	// all groups are fully broken - the first one is returned
-	bus = &backendURLs{groups: []*backendURLGroup{newTestGroup(true), newTestGroup(true)}}
-	if g := bus.getFirstAvailable(); g != bus.groups[0] {
-		t.Fatalf("expecting the first group to be returned when all groups are broken")
-	}
-}
-
-func TestGetLeastLoadedGroup(t *testing.T) {
-	g0 := newTestGroup(false)
-	g1 := newTestGroup(false)
-	var n atomic.Uint32
-	bus := &backendURLs{groups: []*backendURLGroup{g0, g1}, n: &n}
-
-	// both groups are idle - the first one is picked
-	if g := bus.getLeastLoaded(); g != g0 {
-		t.Fatalf("expecting g0 to be returned when all groups are idle")
-	}
-
-	// g0 becomes more loaded than g1 - g1 must be picked
-	g0.bus[0].concurrentRequests.Add(5)
-	if g := bus.getLeastLoaded(); g != g1 {
-		t.Fatalf("expecting g1 to be returned when it is less loaded than g0")
-	}
-
-	// g1 is broken - g0 must be picked despite being more loaded
-	g1.bus[0].setBroken()
-	if g := bus.getLeastLoaded(); g != g0 {
-		t.Fatalf("expecting g0 to be returned when g1 is broken")
-	}
-
-	// all groups are broken - the first one is returned
-	g0.bus[0].setBroken()
-	if g := bus.getLeastLoaded(); g != g0 {
-		t.Fatalf("expecting g0 to be returned when all groups are broken")
-	}
-}
-
-func TestGetBackendURLTwoTier(t *testing.T) {
-	// Simulates two backends (busOriginal entries), each expanded into two discovered targets.
-	up := &URLPrefix{}
-	up.backendGroupCounters = make([]atomic.Uint32, 2)
-	bus := newBackendURLs(&up.n)
-	bus.addGroup([]*url.URL{{Host: "g0-a"}, {Host: "g0-b"}}, &up.backendGroupCounters[0])
-	bus.addGroup([]*url.URL{{Host: "g1-a"}, {Host: "g1-b"}}, &up.backendGroupCounters[1])
-
-	up.bus.Store(bus)
-	up.loadBalancingPolicy = "first_available"
-	up.backendLoadBalancingPolicy = "first_available"
-
-	if n := up.getBackendsCount(); n != 4 {
-		t.Fatalf("unexpected backends count; got %d; want 4", n)
-	}
-
-	// Both policies are first_available, so vmauth must always pick group0's first target.
-	for range 5 {
-		bu := up.getBackendURL()
-		if bu.url.Host != "g0-a" {
-			t.Fatalf("unexpected target; got %q; want g0-a", bu.url.Host)
-		}
-		bu.put()
-	}
-
-	// Mark group0's first target broken - the backend-level policy falls back to g0-b,
-	// while the top-level group selection still prefers group0, since it has a non-broken target.
-	bus.groups[0].bus[0].setBroken()
-	bu := up.getBackendURL()
-	if bu.url.Host != "g0-b" {
-		t.Fatalf("unexpected target; got %q; want g0-b", bu.url.Host)
-	}
-	bu.put()
-
-	// Mark group0 fully broken - the top-level selection falls back to group1.
-	bus.groups[0].bus[1].setBroken()
-	bu = up.getBackendURL()
-	if bu.url.Host != "g1-a" {
-		t.Fatalf("unexpected target; got %q; want g1-a", bu.url.Host)
-	}
-	bu.put()
-}
-
-func TestInitURLsBackendLoadBalancingPolicy(t *testing.T) {
-	f := func(ui *UserInfo, expectedLBP, expectedBLBP string) {
-		t.Helper()
-
-		if err := ui.initURLs(); err != nil {
-			t.Fatalf("unexpected error: %s", err)
-		}
-		up := ui.URLPrefix
-		if up == nil {
-			up = ui.URLMaps[0].URLPrefix
-		}
-		if up.loadBalancingPolicy != expectedLBP {
-			t.Fatalf("unexpected loadBalancingPolicy; got %q; want %q", up.loadBalancingPolicy, expectedLBP)
-		}
-		if up.backendLoadBalancingPolicy != expectedBLBP {
-			t.Fatalf("unexpected backendLoadBalancingPolicy; got %q; want %q", up.backendLoadBalancingPolicy, expectedBLBP)
-		}
-	}
-
-	// Nothing set - both default to least_loaded.
-	f(&UserInfo{
-		URLPrefix: mustParseURL("http://foo.bar"),
-	}, "least_loaded", "least_loaded")
-
-	// load_balancing_policy is set, backend_load_balancing_policy is not - it inherits load_balancing_policy.
-	f(&UserInfo{
-		URLPrefix:           mustParseURL("http://foo.bar"),
-		LoadBalancingPolicy: "first_available",
-	}, "first_available", "first_available")
-
-	// Both are explicitly set to different values.
-	f(&UserInfo{
-		URLPrefix:                  mustParseURL("http://foo.bar"),
-		LoadBalancingPolicy:        "first_available",
-		BackendLoadBalancingPolicy: "least_loaded",
-	}, "first_available", "least_loaded")
-
-	// url_map inherits backend_load_balancing_policy from its own effective load_balancing_policy.
-	f(&UserInfo{
-		LoadBalancingPolicy: "first_available",
-		URLMaps: []URLMap{
-			{
-				SrcPaths:  getRegexs([]string{"/foo"}),
-				URLPrefix: mustParseURL("http://foo.bar"),
-			},
-		},
-	}, "first_available", "first_available")
-
-	// url_map overrides backend_load_balancing_policy explicitly.
-	f(&UserInfo{
-		LoadBalancingPolicy: "first_available",
-		URLMaps: []URLMap{
-			{
-				SrcPaths:                   getRegexs([]string{"/foo"}),
-				URLPrefix:                  mustParseURL("http://foo.bar"),
-				BackendLoadBalancingPolicy: "least_loaded",
-			},
-		},
-	}, "first_available", "least_loaded")
-}
-
-func TestInitURLsBackendLoadBalancingPolicyInvalid(t *testing.T) {
-	ui := &UserInfo{
-		URLPrefix:                  mustParseURL("http://foo.bar"),
-		BackendLoadBalancingPolicy: "bogus",
-	}
-	if err := ui.initURLs(); err == nil {
-		t.Fatalf("expecting non-nil error for invalid backend_load_balancing_policy")
-	}
-}
-
 func getRegexs(paths []string) []*Regex {
 	var sps []*Regex
 	for _, path := range paths {
@@ -1382,12 +1092,14 @@ func mustParseURL(u string) *URLPrefix {
 }
 
 func mustParseURLs(us []string) *URLPrefix {
+	bus := newBackendURLs()
 	urls := make([]*url.URL, len(us))
 	for i, u := range us {
 		pu, err := url.Parse(u)
 		if err != nil {
 			panic(fmt.Errorf("BUG: cannot parse %q: %w", u, err))
 		}
+		bus.add(pu)
 		urls[i] = pu
 	}
 	up := &URLPrefix{}
@@ -1396,11 +1108,8 @@ func mustParseURLs(us []string) *URLPrefix {
 	} else {
 		up.vOriginal = us
 	}
-	up.busOriginal = urls
-	up.backendGroupCounters = make([]atomic.Uint32, len(us))
-	bus := newBackendURLs(&up.n)
-	bus.addGroup(urls, &up.backendGroupCounters[0])
 	up.bus.Store(bus)
+	up.busOriginal = urls
 	return up
 }
 

app/vmauth/main.go

@@ -175,12 +175,11 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
 	if len(ats) == 0 {
 		// Process requests for unauthorized users
 		ui := authConfig.Load().UnauthorizedUser
-		if ui.hasAnyURLs() {
+		if ui != nil {
 			processUserRequest(w, r, ui, nil)
 			return true
 		}
 
-		ui.logRequest(r, `unauthorized`, http.StatusUnauthorized, 0)
 		handleMissingAuthorizationError(w)
 		return true
 	}
@@ -193,24 +192,23 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
 		if tkn == nil {
 			logger.Panicf("BUG: unexpected nil jwt token for user %q", ui.name())
 		}
-		defer putToken(tkn)
-		// Call processUserRequest only if the token contains the vm_access claim
-		// or a default claim is configured; otherwise fall through to unauthorized_user.
-		if tkn.HasVMAccessClaim() || ui.JWT.DefaultVMAccessClaim != nil {
-			processUserRequest(w, r, ui, tkn)
+		if !tkn.HasVMAccessClaim() && ui.JWT.DefaultVMAccessClaim == nil {
+			http.Error(w, "Unauthorized", http.StatusUnauthorized)
 			return true
 		}
+		defer putToken(tkn)
+		processUserRequest(w, r, ui, tkn)
+		return true
 	}
 
 	uu := authConfig.Load().UnauthorizedUser
-	if uu.hasAnyURLs() {
+	if uu != nil {
 		processUserRequest(w, r, uu, nil)
 		return true
 	}
 
 	invalidAuthTokenRequests.Inc()
 	slowdownUnauthorizedResponse(r)
-	uu.logRequest(r, `unauthorized`, http.StatusUnauthorized, 0)
 	if *logInvalidAuthTokens {
 		err := fmt.Errorf("cannot authorize request with auth tokens %q", ats)
 		err = &httpserver.ErrorWithStatusCode{
@@ -386,7 +384,7 @@ func bufferRequestBody(ctx context.Context, r io.ReadCloser, userName string) (i
 			return nil, &httpserver.ErrorWithStatusCode{
 				Err: fmt.Errorf("reject request from the user %s because the request body couldn't be read in -maxQueueDuration=%s; read %d bytes in %s",
 					userName, *maxQueueDuration, len(buf), d.Truncate(time.Second)),
-				StatusCode: http.StatusRequestTimeout,
+				StatusCode: http.StatusBadRequest,
 			}
 		}
 

app/vmauth/main_synctest_test.go

@@ -1,54 +0,0 @@
-//go:build synctest
-
-package main
-
-import (
-	"context"
-	"net/http"
-	"testing"
-	"testing/synctest"
-	"time"
-
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
-)
-
-func TestBufferRequestBody_Timeout(t *testing.T) {
-	synctest.Test(t, func(t *testing.T) {
-
-		defaultMaxQueueDuration := *maxQueueDuration
-		defer func() {
-			*maxQueueDuration = defaultMaxQueueDuration
-		}()
-
-		*maxQueueDuration = 100 * time.Millisecond
-
-		ctx, cancel := context.WithTimeout(context.Background(), *maxQueueDuration)
-		defer cancel()
-
-		_, err := bufferRequestBody(ctx, &timeoutBody{delay: *maxQueueDuration + 100*time.Millisecond}, "foo")
-		if err == nil {
-			t.Fatalf("expecting non-nil error")
-		}
-
-		esc, ok := err.(*httpserver.ErrorWithStatusCode)
-		if !ok {
-			t.Fatalf("unexpected error type: %s", err)
-		}
-		if esc.StatusCode != http.StatusRequestTimeout {
-			t.Fatalf("read request body timeout meet unexpected status code; got %d; want %d", esc.StatusCode, http.StatusRequestTimeout)
-		}
-	})
-}
-
-type timeoutBody struct {
-	delay time.Duration
-}
-
-func (r *timeoutBody) Read(_ []byte) (int, error) {
-	time.Sleep(r.delay)
-	return 0, context.DeadlineExceeded
-}
-
-func (r *timeoutBody) Close() error {
-	return nil
-}

app/vmauth/main_test.go

@@ -785,26 +785,7 @@ statusCode=401
 Unauthorized`
 	f(simpleCfgStr, request, responseExpected)
 
-	// token without vm_access claim should fall through to unauthorized_user
-	request = httptest.NewRequest(`GET`, "http://some-host.com/abc", nil)
-	request.Header.Set(`Authorization`, `Bearer `+noVMAccessClaimToken)
-	responseExpected = `
-statusCode=200
-path: /bar/abc
-query:
-headers:`
-	f(fmt.Sprintf(`
-unauthorized_user:
-  url_prefix: {BACKEND}/bar
-users:
-- jwt:
-    public_keys:
-    - %q
-    match_claims:
-      role: admin
-  url_prefix: {BACKEND}/foo`, string(publicKeyPEM)), request, responseExpected)
-
-	// token without vm_access claim is accepted when default_vm_access_claim configured
+	// token without vm_access claim is accepted when it
 	request = httptest.NewRequest(`GET`, "http://some-host.com/abc", nil)
 	request.Header.Set(`Authorization`, `Bearer `+roleToken)
 	responseExpected = `

app/vmctl/vm/vm.go

@@ -8,7 +8,6 @@ import (
 	"fmt"
 	"io"
 	"net/http"
-	"net/url"
 	"strings"
 	"sync"
 	"time"
@@ -112,7 +111,7 @@ func AddExtraLabelsToImportPath(path string, extraLabels []string) (string, erro
 		if strings.Contains(dst, "?") {
 			separator = "&"
 		}
-		dst += fmt.Sprintf("%sextra_label=%s", separator, url.QueryEscape(extraLabel))
+		dst += fmt.Sprintf("%sextra_label=%s", separator, extraLabel)
 	}
 	return dst, nil
 }

app/vmctl/vm/vm_test.go

@@ -33,14 +33,11 @@ func TestAddExtraLabelsToImportPath_Success(t *testing.T) {
 	f("/api/v1/import", nil, "/api/v1/import")
 
 	// ok one extra label
-	f("/api/v1/import", []string{"instance=host-1"}, "/api/v1/import?extra_label=instance%3Dhost-1")
+	f("/api/v1/import", []string{"instance=host-1"}, "/api/v1/import?extra_label=instance=host-1")
 
 	// ok two extra labels
-	f("/api/v1/import", []string{"instance=host-2", "job=vmagent"}, "/api/v1/import?extra_label=instance%3Dhost-2&extra_label=job%3Dvmagent")
+	f("/api/v1/import", []string{"instance=host-2", "job=vmagent"}, "/api/v1/import?extra_label=instance=host-2&extra_label=job=vmagent")
 
 	// ok two extra with exist param
-	f("/api/v1/import?timeout=50", []string{"instance=host-2", "job=vmagent"}, "/api/v1/import?timeout=50&extra_label=instance%3Dhost-2&extra_label=job%3Dvmagent")
-
-	// ok special chars in label value
-	f("/api/v1/import", []string{"team=a&b"}, "/api/v1/import?extra_label=team%3Da%26b")
+	f("/api/v1/import?timeout=50", []string{"instance=host-2", "job=vmagent"}, "/api/v1/import?timeout=50&extra_label=instance=host-2&extra_label=job=vmagent")
 }

app/vminsert/common/insert_ctx.go

@@ -175,19 +175,13 @@ func (ctx *InsertCtx) WriteMetadata(mmpbs []prompb.MetricMetadata) error {
 	}
 	mms := ctx.mms
 	mms = slicesutil.SetLength(mms, len(mmpbs))
-	var cnt int
-	for _, mmpb := range mmpbs {
-		if timeserieslimits.IsMetricMetadataExceeding(&mmpb) {
-			continue
-		}
-		mm := &mms[cnt]
+	for idx, mmpb := range mmpbs {
+		mm := &mms[idx]
 		mm.MetricFamilyName = bytesutil.ToUnsafeBytes(mmpb.MetricFamilyName)
 		mm.Help = bytesutil.ToUnsafeBytes(mmpb.Help)
 		mm.Type = mmpb.Type
 		mm.Unit = bytesutil.ToUnsafeBytes(mmpb.Unit)
-		cnt++
 	}
-	mms = mms[:cnt]
 	ctx.mms = mms
 
 	err := vmstorage.VMInsertAPI.WriteMetadata(mms)
@@ -207,19 +201,14 @@ func (ctx *InsertCtx) WritePromMetadata(mmps []prometheus.Metadata) error {
 	}
 	mms := ctx.mms
 	mms = slicesutil.SetLength(mms, len(mmps))
-	var cnt int
-	for _, mmpb := range mmps {
-		mm := &mms[cnt]
-		if timeserieslimits.IsPrometheusMetadataExceeding(&mmpb) {
-			continue
-		}
+	for idx, mmpb := range mmps {
+		mm := &mms[idx]
 		mm.MetricFamilyName = bytesutil.ToUnsafeBytes(mmpb.Metric)
 		mm.Help = bytesutil.ToUnsafeBytes(mmpb.Help)
 		mm.Type = mmpb.Type
-		cnt++
 	}
-	mms = mms[:cnt]
 	ctx.mms = mms
+
 	err := vmstorage.VMInsertAPI.WriteMetadata(mms)
 	if err != nil {
 		return &httpserver.ErrorWithStatusCode{

app/vminsert/influx/request_handler.go

@@ -49,7 +49,7 @@ func InsertHandlerForHTTP(req *http.Request) error {
 	}
 	q := req.URL.Query()
 	precision := q.Get("precision")
-	// Read db tag from https://docs.influxdata.com/influxdb/v1/api/write/#operation/PostWrite
+	// Read db tag from https://docs.influxdata.com/influxdb/v1.7/tools/api/#write-http-endpoint
 	db := q.Get("db")
 	encoding := req.Header.Get("Content-Encoding")
 	isStreamMode := req.Header.Get("Stream-Mode") == "1"

app/vminsert/main.go

@@ -68,11 +68,9 @@ var (
 		"at -opentsdbHTTPListenAddr . See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt")
 	configAuthKey          = flagutil.NewPassword("configAuthKey", "Authorization key for accessing /config page. It must be passed via authKey query arg. It overrides -httpAuth.*")
 	reloadAuthKey          = flagutil.NewPassword("reloadAuthKey", "Auth key for /-/reload http endpoint. It must be passed via authKey query arg. It overrides httpAuth.* settings.")
-	maxLabelsPerTimeseries = flag.Int("maxLabelsPerTimeseries", 40, "The maximum number of labels per time series to be accepted. Series with superfluous labels are ignored. In this case the vm_rows_ignored_total{reason=\"too_many_labels\"} metric at /metrics page is incremented.")
-	maxLabelNameLen        = flag.Int("maxLabelNameLen", 256, "The maximum length of label name in the accepted time series. Series with longer label name are ignored. In this case the vm_rows_ignored_total{reason=\"too_long_label_name\"} metric at /metrics page is incremented. "+
-		"Value must be in range 1..65535.")
-	maxLabelValueLen = flag.Int("maxLabelValueLen", 4*1024, "The maximum length of label values in the accepted time series. Series with longer label value are ignored. In this case the vm_rows_ignored_total{reason=\"too_long_label_value\"} metric at /metrics page is incremented. "+
-		"Value must be in range 1..65535.")
+	maxLabelsPerTimeseries = flag.Int("maxLabelsPerTimeseries", 40, "The maximum number of labels per time series to be accepted. Series with superfluous labels are ignored. In this case the vm_rows_ignored_total{reason=\"too_many_labels\"} metric at /metrics page is incremented")
+	maxLabelNameLen        = flag.Int("maxLabelNameLen", 256, "The maximum length of label name in the accepted time series. Series with longer label name are ignored. In this case the vm_rows_ignored_total{reason=\"too_long_label_name\"} metric at /metrics page is incremented")
+	maxLabelValueLen       = flag.Int("maxLabelValueLen", 4*1024, "The maximum length of label values in the accepted time series. Series with longer label value are ignored. In this case the vm_rows_ignored_total{reason=\"too_long_label_value\"} metric at /metrics page is incremented")
 )
 
 var (
@@ -108,7 +106,7 @@ func Init() {
 	promscrape.Init(func(_ *auth.Token, wr *prompb.WriteRequest) {
 		prompush.Push(wr)
 	})
-	timeserieslimits.MustInit(*maxLabelsPerTimeseries, *maxLabelNameLen, *maxLabelValueLen)
+	timeserieslimits.Init(*maxLabelsPerTimeseries, *maxLabelNameLen, *maxLabelValueLen)
 }
 
 // Stop stops vminsert.

app/vmselect/main.go

@@ -541,7 +541,7 @@ func handleStaticAndSimpleRequests(w http.ResponseWriter, r *http.Request, path
 		return true
 	case "/metric-relabel-debug":
 		promscrapeMetricRelabelDebugRequests.Inc()
-		promscrape.WriteMetricRelabelDebug(w, r, "", nil)
+		promscrape.WriteMetricRelabelDebug(w, r)
 		return true
 	case "/target-relabel-debug":
 		promscrapeTargetRelabelDebugRequests.Inc()

app/vmselect/promql/binary_op.go

@@ -172,13 +172,7 @@ func newBinaryOpFunc(bf func(left, right float64, isBool bool) float64) binaryOp
 			left = removeEmptySeries(left)
 			right = removeEmptySeries(right)
 		}
-		if len(left) == 0 && len(right) == 0 {
-			return nil, nil
-		}
-		if len(left) == 0 && bfa.be.FillLeft == nil {
-			return nil, nil
-		}
-		if len(right) == 0 && bfa.be.FillRight == nil {
+		if len(left) == 0 || len(right) == 0 {
 			return nil, nil
 		}
 		left, right, dst, err := adjustBinaryOpTags(bfa.be, left, right)
@@ -189,8 +183,6 @@ func newBinaryOpFunc(bf func(left, right float64, isBool bool) float64) binaryOp
 			logger.Panicf("BUG: len(left) must match len(right) and len(dst); got %d vs %d vs %d", len(left), len(right), len(dst))
 		}
 		isBool := bfa.be.Bool
-		fillLeft := bfa.be.FillLeft
-		fillRight := bfa.be.FillRight
 		for i, tsLeft := range left {
 			leftValues := tsLeft.Values
 			rightValues := right[i].Values
@@ -201,19 +193,6 @@ func newBinaryOpFunc(bf func(left, right float64, isBool bool) float64) binaryOp
 			}
 			for j, a := range leftValues {
 				b := rightValues[j]
-				leftIsNaN := math.IsNaN(a)
-				rightIsNaN := math.IsNaN(b)
-				// apply the fill value when either the left or right side is NaN, but not both.
-				if leftIsNaN && rightIsNaN {
-					dstValues[j] = bf(a, b, isBool)
-					continue
-				}
-				if leftIsNaN && fillLeft != nil {
-					a = fillLeft.N
-				}
-				if rightIsNaN && fillRight != nil {
-					b = fillRight.N
-				}
 				dstValues[j] = bf(a, b, isBool)
 			}
 		}
@@ -247,7 +226,7 @@ func adjustBinaryOpTags(be *metricsql.BinaryOpExpr, left, right []*timeseries) (
 		}
 	}
 
-	// Slow path: `vector op vector` or `a op {on|ignoring} {group_left|group_right} {fill|fill_left|fill_right} b`
+	// Slow path: `vector op vector` or `a op {on|ignoring} {group_left|group_right} b`
 	var rvsLeft, rvsRight []*timeseries
 	mLeft, mRight := createTimeseriesMapByTagSet(be, left, right)
 	joinOp := strings.ToLower(be.JoinModifier.Op)
@@ -260,27 +239,10 @@ func adjustBinaryOpTags(be *metricsql.BinaryOpExpr, left, right []*timeseries) (
 		// Add __name__ to groupTags if metric name must be preserved.
 		groupTags = append(groupTags[:len(groupTags):len(groupTags)], "__name__")
 	}
-	// Add missing keys from mRight to mLeft when fill_left()/fill() modifier is used
-	if be.FillLeft != nil {
-		for k := range mRight {
-			if _, ok := mLeft[k]; !ok {
-				mLeft[k] = nil
-			}
-		}
-	}
 	for k, tssLeft := range mLeft {
 		tssRight := mRight[k]
-		if len(tssLeft) == 0 {
-			if be.FillLeft == nil {
-				logger.Panicf("BUG: unexpected empty tssLeft for key %q when FillLeft is nil", k)
-			}
-			tssLeft = []*timeseries{newFillTimeseries(be, tssRight[0])}
-		}
 		if len(tssRight) == 0 {
-			if be.FillRight == nil {
-				continue
-			}
-			tssRight = []*timeseries{newFillTimeseries(be, tssLeft[0])}
+			continue
 		}
 		switch joinOp {
 		case "group_left":
@@ -325,28 +287,6 @@ func adjustBinaryOpTags(be *metricsql.BinaryOpExpr, left, right []*timeseries) (
 	return rvsLeft, rvsRight, dst, nil
 }
 
-// newFillTimeseries returns a time series filled with NaN values for the fill_left()/fill_right()/fill() modifiers.
-// These NaN values will be replaced later with the fill value if needed.
-func newFillTimeseries(be *metricsql.BinaryOpExpr, src *timeseries) *timeseries {
-	var ts timeseries
-	ts.CopyFromShallowTimestamps(src)
-	if !be.KeepMetricNames {
-		ts.MetricName.ResetMetricGroup()
-	}
-	groupTags := be.GroupModifier.Args
-	switch strings.ToLower(be.GroupModifier.Op) {
-	case "on":
-		ts.MetricName.RemoveTagsOn(groupTags)
-	default:
-		ts.MetricName.RemoveTagsIgnoring(groupTags)
-	}
-	values := ts.Values
-	for i := range values {
-		values[i] = math.NaN()
-	}
-	return &ts
-}
-
 func ensureSingleTimeseries(side string, be *metricsql.BinaryOpExpr, tss []*timeseries) error {
 	if len(tss) == 0 {
 		logger.Panicf("BUG: tss must contain at least one value")

app/vmselect/promql/eval.go

@@ -424,7 +424,18 @@ func evalBinaryOp(qt *querytracer.Tracer, ec *EvalConfig, be *metricsql.BinaryOp
 	if bf == nil {
 		return nil, fmt.Errorf(`unknown binary op %q`, be.Op)
 	}
-	tssLeft, tssRight, err := execBinaryOpArgs(qt, ec, be)
+	var err error
+	var tssLeft, tssRight []*timeseries
+	switch strings.ToLower(be.Op) {
+	case "and", "if":
+		// Fetch right-side series at first, since it usually contains
+		// lower number of time series for `and` and `if` operator.
+		// This should produce more specific label filters for the left side of the query.
+		// This, in turn, should reduce the time to select series for the left side of the query.
+		tssRight, tssLeft, err = execBinaryOpArgs(qt, ec, be.Right, be.Left, be)
+	default:
+		tssLeft, tssRight, err = execBinaryOpArgs(qt, ec, be.Left, be.Right, be)
+	}
 	if err != nil {
 		return nil, fmt.Errorf("cannot execute %q: %w", be.AppendString(nil), err)
 	}
@@ -440,29 +451,6 @@ func evalBinaryOp(qt *querytracer.Tracer, ec *EvalConfig, be *metricsql.BinaryOp
 	return rv, nil
 }
 
-// binaryOpEvalOrder might change the order of evaluation of the left and right sides of a binary operation,
-// when there is chance to push down common label filters from exprFirst to exprSecond in the following executions.
-func binaryOpEvalOrder(be *metricsql.BinaryOpExpr) (exprFirst, exprSecond metricsql.Expr) {
-	exprFirst, exprSecond = be.Left, be.Right
-	switch strings.ToLower(be.Op) {
-	case "and", "if":
-		// For `and` and `if`, fetch the right-side series first, since it usually contains
-		// fewer time series and yields more specific filters for the left side.
-		exprFirst, exprSecond = be.Right, be.Left
-	}
-	if be.FillLeft != nil && be.FillRight == nil {
-		// For `fill_left(<value>)`, the unmatched series can only come from the right side, so evaluate it first.
-		exprFirst, exprSecond = be.Right, be.Left
-	}
-	return exprFirst, exprSecond
-}
-
-// canPushdownCommonFilters decides if common label filters can be pushed down from one side of a binary operation to the other.
-//
-// Common filters cannot be pushed down when:
-// - the operator is `or` or `default`;
-// - either side is an aggregation function without explicit grouping;
-// - fill(<value>) modifier is used.
 func canPushdownCommonFilters(be *metricsql.BinaryOpExpr) bool {
 	switch strings.ToLower(be.Op) {
 	case "or", "default":
@@ -471,10 +459,6 @@ func canPushdownCommonFilters(be *metricsql.BinaryOpExpr) bool {
 	if isAggrFuncWithoutGrouping(be.Left) || isAggrFuncWithoutGrouping(be.Right) {
 		return false
 	}
-	// Filters cannot be propagated when fill(<value>) modifier is used.
-	if be.FillLeft != nil && be.FillRight != nil {
-		return false
-	}
 	return true
 }
 
@@ -486,63 +470,42 @@ func isAggrFuncWithoutGrouping(e metricsql.Expr) bool {
 	return len(afe.Modifier.Args) == 0
 }
 
-func execBinaryOpArgs(qt *querytracer.Tracer, ec *EvalConfig, be *metricsql.BinaryOpExpr) ([]*timeseries, []*timeseries, error) {
-	exprFirst, exprSecond := binaryOpEvalOrder(be)
-	firstIsLeft := exprFirst == be.Left
-	sortResult := func(tssFirst, tssSecond []*timeseries) ([]*timeseries, []*timeseries, error) {
-		if firstIsLeft {
-			return tssFirst, tssSecond, nil
-		}
-		return tssSecond, tssFirst, nil
-	}
-	if canPushdownCommonFilters(be) {
-		// Execute binary operation in the following way:
-		//
-		// 1) execute the exprFirst
-		// 2) get common label filters for series returned at step 1
-		// 3) push down the found common label filters to exprSecond. This filters out unneeded series
-		//    during exprSecond execution instead of spending compute resources on extracting and processing these series
-		//    before they are dropped later when matching time series according to https://prometheus.io/docs/prometheus/latest/querying/operators/#vector-matching
-		// 4) execute the exprSecond with possible additional filters found at step 3
-		//
-		// Typical use cases:
-		// - Kubernetes-related: show pod creation time with the node name:
-		//
-		//     kube_pod_created{namespace="prod"} * on (uid) group_left(node) kube_pod_info
-		//
-		//   Without the optimization `kube_pod_info` would select and spend compute resources
-		//   for more time series than needed. The selected time series would be dropped later
-		//   when matching time series on the right and left sides of binary operand.
-		//
-		// - Generic alerting queries, which rely on `info` metrics.
-		//   See https://grafana.com/blog/2021/08/04/how-to-use-promql-joins-for-more-effective-queries-of-prometheus-metrics-at-scale/
-		//
-		// - Queries, which get additional labels from `info` metrics.
-		//   See https://www.robustperception.io/exposing-the-software-version-to-prometheus
-		tssFirst, err := evalExpr(qt, ec, exprFirst)
-		if err != nil {
-			return nil, nil, err
-		}
-		if len(tssFirst) == 0 && !strings.EqualFold(be.Op, "or") {
-			// Fast path: there is no sense in executing the exprSecond when exprFirst returns an empty result,
-			// since the "exprFirst op exprSecond" would return an empty result in any case.
-			// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3349
-			return nil, nil, nil
-		}
-		lfs := getCommonLabelFilters(tssFirst)
-		lfs = metricsql.TrimFiltersByGroupModifier(lfs, be)
-		exprSecond = metricsql.PushdownBinaryOpFilters(exprSecond, lfs)
-		tssSecond, err := evalExpr(qt, ec, exprSecond)
-		if err != nil {
-			return nil, nil, err
-		}
-		return sortResult(tssFirst, tssSecond)
-	}
+func execBinaryOpArgs(qt *querytracer.Tracer, ec *EvalConfig, exprFirst, exprSecond metricsql.Expr, be *metricsql.BinaryOpExpr) ([]*timeseries, []*timeseries, error) {
+	canPushdown := canPushdownCommonFilters(be)
+	if !canPushdown && !shouldOptimizeRepeatedBinaryOpSubexprs(ec, exprFirst, exprSecond) {
+		// Execute exprFirst and exprSecond in parallel, since it is impossible to pushdown common filters
+		// from exprFirst to exprSecond.
+		// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2886
+		qt = qt.NewChild("execute left and right sides of %q in parallel", be.Op)
+		defer qt.Done()
+		var wg sync.WaitGroup
 
-	// Execute exprFirst and exprSecond sequentially if there are cacheable repeated subexpressions
-	// in exprFirst and exprSecond.
-	// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10575
-	if shouldOptimizeRepeatedBinaryOpSubexprs(ec, exprFirst, exprSecond) {
+		var tssFirst []*timeseries
+		var errFirst error
+		qtFirst := qt.NewChild("expr1")
+		wg.Go(func() {
+			tssFirst, errFirst = evalExpr(qtFirst, ec, exprFirst)
+			qtFirst.Done()
+		})
+
+		var tssSecond []*timeseries
+		var errSecond error
+		qtSecond := qt.NewChild("expr2")
+		wg.Go(func() {
+			tssSecond, errSecond = evalExpr(qtSecond, ec, exprSecond)
+			qtSecond.Done()
+		})
+
+		wg.Wait()
+		if errFirst != nil {
+			return nil, nil, errFirst
+		}
+		if errSecond != nil {
+			return nil, nil, errSecond
+		}
+		return tssFirst, tssSecond, nil
+	}
+	if !canPushdown {
 		qt = qt.NewChild("execute left and right sides of %q sequentially because repeated cacheable subexpression was found", be.Op)
 		defer qt.Done()
 
@@ -562,37 +525,47 @@ func execBinaryOpArgs(qt *querytracer.Tracer, ec *EvalConfig, be *metricsql.Bina
 		return tssFirst, tssSecond, nil
 	}
 
-	// Execute exprFirst and exprSecond in parallel, since it is impossible to pushdown common filters
-	// from exprFirst to exprSecond.
-	// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2886
-	qt = qt.NewChild("execute left and right sides of %q in parallel", be.Op)
-	defer qt.Done()
-	var wg sync.WaitGroup
-
-	var tssFirst []*timeseries
-	var errFirst error
-	qtFirst := qt.NewChild("expr1")
-	wg.Go(func() {
-		tssFirst, errFirst = evalExpr(qtFirst, ec, exprFirst)
-		qtFirst.Done()
-	})
-
-	var tssSecond []*timeseries
-	var errSecond error
-	qtSecond := qt.NewChild("expr2")
-	wg.Go(func() {
-		tssSecond, errSecond = evalExpr(qtSecond, ec, exprSecond)
-		qtSecond.Done()
-	})
-
-	wg.Wait()
-	if errFirst != nil {
-		return nil, nil, errFirst
+	// Execute binary operation in the following way:
+	//
+	// 1) execute the exprFirst
+	// 2) get common label filters for series returned at step 1
+	// 3) push down the found common label filters to exprSecond. This filters out unneeded series
+	//    during exprSecond execution instead of spending compute resources on extracting and processing these series
+	//    before they are dropped later when matching time series according to https://prometheus.io/docs/prometheus/latest/querying/operators/#vector-matching
+	// 4) execute the exprSecond with possible additional filters found at step 3
+	//
+	// Typical use cases:
+	// - Kubernetes-related: show pod creation time with the node name:
+	//
+	//     kube_pod_created{namespace="prod"} * on (uid) group_left(node) kube_pod_info
+	//
+	//   Without the optimization `kube_pod_info` would select and spend compute resources
+	//   for more time series than needed. The selected time series would be dropped later
+	//   when matching time series on the right and left sides of binary operand.
+	//
+	// - Generic alerting queries, which rely on `info` metrics.
+	//   See https://grafana.com/blog/2021/08/04/how-to-use-promql-joins-for-more-effective-queries-of-prometheus-metrics-at-scale/
+	//
+	// - Queries, which get additional labels from `info` metrics.
+	//   See https://www.robustperception.io/exposing-the-software-version-to-prometheus
+	tssFirst, err := evalExpr(qt, ec, exprFirst)
+	if err != nil {
+		return nil, nil, err
 	}
-	if errSecond != nil {
-		return nil, nil, errSecond
+	if len(tssFirst) == 0 && !strings.EqualFold(be.Op, "or") {
+		// Fast path: there is no sense in executing the exprSecond when exprFirst returns an empty result,
+		// since the "exprFirst op exprSecond" would return an empty result in any case.
+		// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3349
+		return nil, nil, nil
 	}
-	return sortResult(tssFirst, tssSecond)
+	lfs := getCommonLabelFilters(tssFirst)
+	lfs = metricsql.TrimFiltersByGroupModifier(lfs, be)
+	exprSecond = metricsql.PushdownBinaryOpFilters(exprSecond, lfs)
+	tssSecond, err := evalExpr(qt, ec, exprSecond)
+	if err != nil {
+		return nil, nil, err
+	}
+	return tssFirst, tssSecond, nil
 }
 
 func shouldOptimizeRepeatedBinaryOpSubexprs(ec *EvalConfig, exprFirst, exprSecond metricsql.Expr) bool {

app/vmselect/promql/exec_test.go

@@ -4006,275 +4006,6 @@ func TestExecSuccess(t *testing.T) {
 		resultExpected := []netstorage.Result{r1, r2}
 		f(q, resultExpected)
 	})
-	t.Run(`vector + vector fill()`, func(t *testing.T) {
-		t.Parallel()
-		q := `sort_by_label((
-			label_set(1, "foo", "common")
-			or label_set(2, "foo", "left_only")
-		) + fill(0) (
-			label_set(3, "foo", "common")
-			or label_set(4, "foo", "right_only")
-		), "foo")`
-		r1 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{4, 4, 4, 4, 4, 4},
-			Timestamps: timestampsExpected,
-		}
-		r1.MetricName.Tags = []storage.Tag{{
-			Key:   []byte("foo"),
-			Value: []byte("common"),
-		}}
-		r2 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{2, 2, 2, 2, 2, 2},
-			Timestamps: timestampsExpected,
-		}
-		r2.MetricName.Tags = []storage.Tag{{
-			Key:   []byte("foo"),
-			Value: []byte("left_only"),
-		}}
-		r3 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{4, 4, 4, 4, 4, 4},
-			Timestamps: timestampsExpected,
-		}
-		r3.MetricName.Tags = []storage.Tag{{
-			Key:   []byte("foo"),
-			Value: []byte("right_only"),
-		}}
-		resultExpected := []netstorage.Result{r1, r2, r3}
-		f(q, resultExpected)
-	})
-	t.Run(`vector + vector fill() both sides NaN case`, func(t *testing.T) {
-		t.Parallel()
-		q := `(
-			label_set(time() <= 1200, "foo", "common")
-		) + fill(10) (
-			label_set(time() >= 1600, "foo", "common")
-		)`
-		r := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{1010, 1210, nan, 1610, 1810, 2010},
-			Timestamps: timestampsExpected,
-		}
-		r.MetricName.Tags = []storage.Tag{{
-			Key:   []byte("foo"),
-			Value: []byte("common"),
-		}}
-		resultExpected := []netstorage.Result{r}
-		f(q, resultExpected)
-	})
-	t.Run(`vector + vector fill_left() fill_right()`, func(t *testing.T) {
-		t.Parallel()
-		q := `sort_by_label((
-			label_set(1, "foo", "common")
-			or label_set(2, "foo", "left_only")
-		) + fill_left(10) fill_right(20) (
-			label_set(3, "foo", "common")
-			or label_set(4, "foo", "right_only")
-		), "foo")`
-		r1 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{4, 4, 4, 4, 4, 4},
-			Timestamps: timestampsExpected,
-		}
-		r1.MetricName.Tags = []storage.Tag{{
-			Key:   []byte("foo"),
-			Value: []byte("common"),
-		}}
-		r2 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{22, 22, 22, 22, 22, 22},
-			Timestamps: timestampsExpected,
-		}
-		r2.MetricName.Tags = []storage.Tag{{
-			Key:   []byte("foo"),
-			Value: []byte("left_only"),
-		}}
-		r3 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{14, 14, 14, 14, 14, 14},
-			Timestamps: timestampsExpected,
-		}
-		r3.MetricName.Tags = []storage.Tag{{
-			Key:   []byte("foo"),
-			Value: []byte("right_only"),
-		}}
-		resultExpected := []netstorage.Result{r1, r2, r3}
-		f(q, resultExpected)
-	})
-	t.Run(`vector + vector fill_right() only`, func(t *testing.T) {
-		t.Parallel()
-		q := `sort_by_label((
-			label_set(1, "foo", "common")
-			or label_set(2, "foo", "left_only")
-		) + fill_right(20) (
-			label_set(3, "foo", "common")
-			or label_set(4, "foo", "right_only")
-		), "foo")`
-		r1 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{4, 4, 4, 4, 4, 4},
-			Timestamps: timestampsExpected,
-		}
-		r1.MetricName.Tags = []storage.Tag{{
-			Key:   []byte("foo"),
-			Value: []byte("common"),
-		}}
-		r2 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{22, 22, 22, 22, 22, 22},
-			Timestamps: timestampsExpected,
-		}
-		r2.MetricName.Tags = []storage.Tag{{
-			Key:   []byte("foo"),
-			Value: []byte("left_only"),
-		}}
-		resultExpected := []netstorage.Result{r1, r2}
-		f(q, resultExpected)
-	})
-	t.Run(`vector + vector on() fill()`, func(t *testing.T) {
-		t.Parallel()
-		q := `sort_by_label((
-			label_set(1, "foo", "common", "extra", "l")
-			or label_set(2, "foo", "left_only", "extra", "l")
-		) + on(foo) fill(0) (
-			label_set(3, "foo", "common", "extra", "r")
-			or label_set(4, "foo", "right_only", "extra", "r")
-		), "foo")`
-		r1 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{4, 4, 4, 4, 4, 4},
-			Timestamps: timestampsExpected,
-		}
-		r1.MetricName.Tags = []storage.Tag{{
-			Key:   []byte("foo"),
-			Value: []byte("common"),
-		}}
-		r2 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{2, 2, 2, 2, 2, 2},
-			Timestamps: timestampsExpected,
-		}
-		r2.MetricName.Tags = []storage.Tag{{
-			Key:   []byte("foo"),
-			Value: []byte("left_only"),
-		}}
-		r3 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{4, 4, 4, 4, 4, 4},
-			Timestamps: timestampsExpected,
-		}
-		r3.MetricName.Tags = []storage.Tag{{
-			Key:   []byte("foo"),
-			Value: []byte("right_only"),
-		}}
-		resultExpected := []netstorage.Result{r1, r2, r3}
-		f(q, resultExpected)
-	})
-	t.Run(`vector + vector on() group_left() fill_right()`, func(t *testing.T) {
-		t.Parallel()
-		q := `sort_by_label((
-			label_set(1, "method", "get", "code", "500")
-			or label_set(2, "method", "get", "code", "404")
-			or label_set(3, "method", "put", "code", "501")
-		) + on(method) group_left() fill_right(0) (
-			label_set(10, "method", "get")
-		), "method", "code")`
-		r1 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{12, 12, 12, 12, 12, 12},
-			Timestamps: timestampsExpected,
-		}
-		r1.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("code"),
-				Value: []byte("404"),
-			},
-			{
-				Key:   []byte("method"),
-				Value: []byte("get"),
-			},
-		}
-		r2 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{11, 11, 11, 11, 11, 11},
-			Timestamps: timestampsExpected,
-		}
-		r2.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("code"),
-				Value: []byte("500"),
-			},
-			{
-				Key:   []byte("method"),
-				Value: []byte("get"),
-			},
-		}
-		r3 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{3, 3, 3, 3, 3, 3},
-			Timestamps: timestampsExpected,
-		}
-		r3.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("code"),
-				Value: []byte("501"),
-			},
-			{
-				Key:   []byte("method"),
-				Value: []byte("put"),
-			},
-		}
-		resultExpected := []netstorage.Result{r1, r2, r3}
-		f(q, resultExpected)
-	})
-	t.Run(`vector / vector ignoring() fill()`, func(t *testing.T) {
-		t.Parallel()
-		q := `sort_by_label((
-			label_set(6, "method", "get", "code", "500")
-			or label_set(1, "method", "put", "code", "500")
-		) / ignoring(code) fill(0) (
-			label_set(12, "method", "get")
-			or label_set(5, "method", "post")
-			or label_set(10, "method", "put")
-		), "method")`
-		r1 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{0.5, 0.5, 0.5, 0.5, 0.5, 0.5},
-			Timestamps: timestampsExpected,
-		}
-		r1.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("method"),
-				Value: []byte("get"),
-			},
-		}
-		r2 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{0, 0, 0, 0, 0, 0},
-			Timestamps: timestampsExpected,
-		}
-		r2.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("method"),
-				Value: []byte("post"),
-			},
-		}
-		r3 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{0.1, 0.1, 0.1, 0.1, 0.1, 0.1},
-			Timestamps: timestampsExpected,
-		}
-		r3.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("method"),
-				Value: []byte("put"),
-			},
-		}
-		resultExpected := []netstorage.Result{r1, r2, r3}
-		f(q, resultExpected)
-	})
 	t.Run(`histogram_quantile(scalar)`, func(t *testing.T) {
 		t.Parallel()
 		q := `histogram_quantile(0.6, time())`
@@ -5102,137 +4833,13 @@ func TestExecSuccess(t *testing.T) {
 		resultExpected := []netstorage.Result{}
 		f(q, resultExpected)
 	})
-	// buckets that are consecutively empty at left and right ends will not be preserved.
-	t.Run(`buckets_limit(trim_zero_preserve_empty_when_limit_not_reached)`, func(t *testing.T) {
+	t.Run(`buckets_limit(zero)`, func(t *testing.T) {
 		t.Parallel()
-		q := `sort(buckets_limit(3, (
-			alias(label_set(36, "le", "+Inf"), "metric"),
-			alias(label_set(36, "le", "25"), "metric"),
-			alias(label_set(36, "le", "21"), "metric"),
-			alias(label_set(36, "le", "19"), "metric"),
-			alias(label_set(36, "le", "18"), "metric"),
-			alias(label_set(36, "le", "17"), "metric"),
-			alias(label_set(36, "le", "16"), "metric"),
-			alias(label_set(27, "le", "12"), "metric"),
-			alias(label_set(14, "le", "9"), "metric"),
-			alias(label_set(0, "le", "6"), "metric"),
-			alias(label_set(0, "le", "1"), "metric"),
-			)))`
-		r1 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{14, 14, 14, 14, 14, 14},
-			Timestamps: timestampsExpected,
-		}
-		r1.MetricName.MetricGroup = []byte("metric")
-		r1.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("le"),
-				Value: []byte("9"),
-			},
-		}
-		r2 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{27, 27, 27, 27, 27, 27},
-			Timestamps: timestampsExpected,
-		}
-		r2.MetricName.MetricGroup = []byte("metric")
-		r2.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("le"),
-				Value: []byte("12"),
-			},
-		}
-		r3 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{36, 36, 36, 36, 36, 36},
-			Timestamps: timestampsExpected,
-		}
-		r3.MetricName.MetricGroup = []byte("metric")
-		r3.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("le"),
-				Value: []byte("16"),
-			},
-		}
-		resultExpected := []netstorage.Result{r1, r2, r3}
-		f(q, resultExpected)
-	})
-
-	// the number of non-empty bucket doesn't reach the given "limit", so some empty buckets will be preserved, and left buckets are preferred to be kept.
-	t.Run(`buckets_limit(trim_zero)`, func(t *testing.T) {
-		t.Parallel()
-		q := `sort(buckets_limit(5, (
-			alias(label_set(36, "le", "18"), "metric"),
-			alias(label_set(36, "le", "17"), "metric"),
-			alias(label_set(36, "le", "16"), "metric"),
-			alias(label_set(27, "le", "12"), "metric"),
-			alias(label_set(14, "le", "9"), "metric"),
-			alias(label_set(0, "le", "6"), "metric"),
-			alias(label_set(0, "le", "1"), "metric"),
-			)))`
-
-		r1 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{0, 0, 0, 0, 0, 0},
-			Timestamps: timestampsExpected,
-		}
-		r1.MetricName.MetricGroup = []byte("metric")
-		r1.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("le"),
-				Value: []byte("1"),
-			},
-		}
-		r2 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{0, 0, 0, 0, 0, 0},
-			Timestamps: timestampsExpected,
-		}
-		r2.MetricName.MetricGroup = []byte("metric")
-		r2.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("le"),
-				Value: []byte("6"),
-			},
-		}
-		r3 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{14, 14, 14, 14, 14, 14},
-			Timestamps: timestampsExpected,
-		}
-		r3.MetricName.MetricGroup = []byte("metric")
-		r3.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("le"),
-				Value: []byte("9"),
-			},
-		}
-		r4 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{27, 27, 27, 27, 27, 27},
-			Timestamps: timestampsExpected,
-		}
-		r4.MetricName.MetricGroup = []byte("metric")
-		r4.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("le"),
-				Value: []byte("12"),
-			},
-		}
-		r5 := netstorage.Result{
-			MetricName: metricNameExpected,
-			Values:     []float64{36, 36, 36, 36, 36, 36},
-			Timestamps: timestampsExpected,
-		}
-		r5.MetricName.MetricGroup = []byte("metric")
-		r5.MetricName.Tags = []storage.Tag{
-			{
-				Key:   []byte("le"),
-				Value: []byte("16"),
-			},
-		}
-
-		resultExpected := []netstorage.Result{r1, r2, r3, r4, r5}
+		q := `buckets_limit(0, (
+			alias(label_set(100, "le", "inf", "x", "y"), "metric"),
+			alias(label_set(50, "le", "120", "x", "y"), "metric"),
+		))`
+		resultExpected := []netstorage.Result{}
 		f(q, resultExpected)
 	})
 	t.Run(`buckets_limit(unused)`, func(t *testing.T) {
@@ -6621,6 +6228,50 @@ func TestExecSuccess(t *testing.T) {
 		resultExpected := []netstorage.Result{r1, r2, r3, r4, r5, r6, r7}
 		f(q, resultExpected)
 	})
+	t.Run(`sum(histogram_over_time) by (vmrange)`, func(t *testing.T) {
+		t.Parallel()
+		q := `sort_by_label(
+			buckets_limit(
+				3,
+				sum(histogram_over_time(alias(label_set(rand(0)*1.3+1.1, "foo", "bar"), "xxx")[200s:5s])) by (vmrange)
+			), "le"
+		)`
+		r1 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{40, 40, 40, 40, 40, 40},
+			Timestamps: timestampsExpected,
+		}
+		r1.MetricName.Tags = []storage.Tag{
+			{
+				Key:   []byte("le"),
+				Value: []byte("+Inf"),
+			},
+		}
+		r2 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{0, 0, 0, 0, 0, 0},
+			Timestamps: timestampsExpected,
+		}
+		r2.MetricName.Tags = []storage.Tag{
+			{
+				Key:   []byte("le"),
+				Value: []byte("1.000e+00"),
+			},
+		}
+		r3 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{40, 40, 40, 40, 40, 40},
+			Timestamps: timestampsExpected,
+		}
+		r3.MetricName.Tags = []storage.Tag{
+			{
+				Key:   []byte("le"),
+				Value: []byte("2.448e+00"),
+			},
+		}
+		resultExpected := []netstorage.Result{r1, r2, r3}
+		f(q, resultExpected)
+	})
 	t.Run(`sum(histogram_over_time)`, func(t *testing.T) {
 		t.Parallel()
 		q := `sum(histogram_over_time(alias(label_set(rand(0)*1.3+1.1, "foo", "bar"), "xxx")[200s:5s]))`

app/vmselect/promql/rollup.go

@@ -1055,7 +1055,7 @@ func newRollupHoltWinters(args []any) (rollupFunc, error) {
 			return nan
 		}
 
-		// See https://en.wikipedia.org/wiki/Exponential_smoothing#Double_exponential_smoothing_%28Holt_linear%29 .
+		// See https://en.wikipedia.org/wiki/Exponential_smoothing#Double_exponential_smoothing .
 		// TODO: determine whether this shit really works.
 		s0 := rfa.prevValue
 		if math.IsNaN(s0) {

app/vmselect/promql/timeseries.go

@@ -2,7 +2,6 @@ package promql
 
 import (
 	"fmt"
-	"math"
 	"sort"
 	"strconv"
 	"sync"
@@ -289,9 +288,6 @@ func marshalMetricTagsSorted(dst []byte, mn *storage.MetricName) []byte {
 }
 
 func marshalBytesFast(dst []byte, s []byte) []byte {
-	if len(s) > math.MaxUint16 {
-		logger.Panicf("BUG: s len %d cannot exceed %d", len(s), math.MaxUint16)
-	}
 	dst = encoding.MarshalUint16(dst, uint16(len(s)))
 	dst = append(dst, s...)
 	return dst

app/vmselect/promql/transform.go

@@ -393,7 +393,7 @@ func transformBucketsLimit(tfa *transformFuncArg) ([]*timeseries, error) {
 		return nil, err
 	}
 	if limit <= 0 {
-		return nil, fmt.Errorf("limit must be greater than 0; got %d", limit)
+		return nil, nil
 	}
 	if limit < 3 {
 		// Preserve the first and the last bucket for better accuracy for min and max values.
@@ -461,23 +461,6 @@ func transformBucketsLimit(tfa *transformFuncArg) ([]*timeseries, error) {
 				prevValue = value
 			}
 		}
-
-		// Remove buckets that are consecutively empty at left and right ends to obtain more accurate max and min values.
-		// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10417.
-		epsilon := 1e-9
-		isEmptyBucket := func(hits float64) bool {
-			return !math.IsNaN(hits) && math.Abs(hits) < epsilon
-		}
-		l := 0
-		r := len(leGroup) - 1
-		for r-l+1 > limit && isEmptyBucket(leGroup[r].hits) {
-			r--
-		}
-		for r-l+1 > limit && isEmptyBucket(leGroup[l].hits) {
-			l++
-		}
-		leGroup = leGroup[l : r+1]
-
 		for len(leGroup) > limit {
 			// Preserve the first and the last bucket for better accuracy for min and max values
 			xxMinIdx := 1
@@ -1138,29 +1121,29 @@ func groupLeTimeseries(tss []*timeseries) map[string][]leTimeseries {
 
 func fixBrokenBuckets(i int, xss []leTimeseries) {
 	// Buckets are already sorted by le, so their values must be in ascending order,
-	// since the upper bucket includes all the lower buckets.
-	// If the upper bucket has lower value than the current bucket,
-	// then the upper bucket must be substituted with the current bucket value.
+	// since the next bucket includes all the previous buckets.
+	// If the next bucket has lower value than the current bucket,
+	// then the next bucket must be substituted with the current bucket value.
 	// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4580#issuecomment-2186659102
 	if len(xss) < 2 {
 		return
 	}
 
-	vPrev := xss[0].ts.Values[i]
+	vNext := xss[0].ts.Values[i]
 	// Set the lowest bucket to 0 if its value is NaN, so it can be properly
 	// compared with upper buckets in the loop below.
-	if math.IsNaN(vPrev) {
-		vPrev = 0
-		xss[0].ts.Values[i] = vPrev
+	if math.IsNaN(vNext) {
+		vNext = 0
+		xss[0].ts.Values[i] = vNext
 	}
 	// Substitute upper bucket values with lower bucket values if the upper values are NaN
-	// or are smaller than the lower bucket values.
+	// or are bigger than the lower bucket values.
 	for j := 1; j < len(xss); j++ {
 		v := xss[j].ts.Values[i]
-		if math.IsNaN(v) || vPrev > v {
-			xss[j].ts.Values[i] = vPrev
+		if math.IsNaN(v) || vNext > v {
+			xss[j].ts.Values[i] = vNext
 		} else {
-			vPrev = v
+			vNext = v
 		}
 	}
 }

app/vmselect/vmui/assets/MetricsQL-DmQtQmkX.md

@@ -91,9 +91,9 @@ The list of MetricsQL features on top of PromQL:
   Labels from the `on()` list aren't copied.
 * [Aggregate functions](#aggregate-functions) accept arbitrary number of args.
   For example, `avg(q1, q2, q3)` would return the average values for every point across time series returned by `q1`, `q2` and `q3`.
-* [@ modifier](https://prometheus.io/docs/prometheus/latest/querying/basics/#-modifier) can be put anywhere in the query.
+* [@ modifier](https://prometheus.io/docs/prometheus/latest/querying/basics/#modifier) can be put anywhere in the query.
   For example, `sum(foo) @ end()` calculates `sum(foo)` at the `end` timestamp of the selected time range `[start ... end]`.
-* Arbitrary subexpression can be used as [@ modifier](https://prometheus.io/docs/prometheus/latest/querying/basics/#-modifier).
+* Arbitrary subexpression can be used as [@ modifier](https://prometheus.io/docs/prometheus/latest/querying/basics/#modifier).
   For example, `foo @ (end() - 1h)` calculates `foo` at the `end - 1 hour` timestamp on the selected time range `[start ... end]`.
 * [offset](https://prometheus.io/docs/prometheus/latest/querying/basics/#offset-modifier), lookbehind window in square brackets
   and `step` value for [subquery](#subqueries) may refer to the current step aka `$__interval` value from Grafana with `[Ni]` syntax.
@@ -482,7 +482,7 @@ See also [hoeffding_bound_lower](#hoeffding_bound_lower).
 #### holt_winters
 
 `holt_winters(series_selector[d], sf, tf)` is a [rollup function](#rollup-functions), which calculates Holt-Winters value
-(aka [double exponential smoothing](https://en.wikipedia.org/wiki/Exponential_smoothing#Double_exponential_smoothing_%28Holt_linear%29)) for [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
+(aka [double exponential smoothing](https://en.wikipedia.org/wiki/Exponential_smoothing#Double_exponential_smoothing)) for [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
 over the given lookbehind window `d` using the given smoothing factor `sf` and the given trend factor `tf`.
 Both `sf` and `tf` must be in the range `[0...1]`.
 
@@ -1154,7 +1154,7 @@ See also [asin](#asin) and [cos](#cos).
 #### acosh
 
 `acosh(q)` is a [transform function](#transform-functions), which returns
-[inverse hyperbolic cosine](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Definitions_in_terms_of_logarithms) for every point of every time series returned by `q`.
+[inverse hyperbolic cosine](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Inverse_hyperbolic_cosine) for every point of every time series returned by `q`.
 
 Metric names are stripped from the resulting series. Add [keep_metric_names](#keep_metric_names) modifier in order to keep metric names.
 
@@ -1176,7 +1176,7 @@ See also [acos](#acos) and [sin](#sin).
 #### asinh
 
 `asinh(q)` is a [transform function](#transform-functions), which returns
-[inverse hyperbolic sine](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Definitions_in_terms_of_logarithms) for every point of every time series returned by `q`.
+[inverse hyperbolic sine](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Inverse_hyperbolic_sine) for every point of every time series returned by `q`.
 
 Metric names are stripped from the resulting series. Add [keep_metric_names](#keep_metric_names) modifier in order to keep metric names.
 
@@ -1198,7 +1198,7 @@ See also [tan](#tan).
 #### atanh
 
 `atanh(q)` is a [transform function](#transform-functions), which returns
-[inverse hyperbolic tangent](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Definitions_in_terms_of_logarithms) for every point of every time series returned by `q`.
+[inverse hyperbolic tangent](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Inverse_hyperbolic_tangent) for every point of every time series returned by `q`.
 
 Metric names are stripped from the resulting series. Add [keep_metric_names](#keep_metric_names) modifier in order to keep metric names.
 
@@ -1229,7 +1229,8 @@ Metric names are stripped from the resulting series. Add [keep_metric_names](#ke
 `buckets_limit(limit, buckets)` is a [transform function](#transform-functions), which limits the number
 of [histogram buckets](https://valyala.medium.com/improving-histogram-usability-for-prometheus-and-grafana-bc7e5df0e350) to the given `limit`. 
 
-The given `limit` should be greater than `0`. If it is less than `3`, it will be automatically raised to `3` to preserve the first and last buckets for better accuracy of min and max values.
+The result will preserve the first and the last bucket to improve accuracy for min and max values. 
+So, if the `limit` is greater than 0 and less than 3, the function will still return 3 buckets: the first bucket, the last bucket, and a selected bucket.
 
 See also [prometheus_buckets](#prometheus_buckets) and [histogram_quantile](#histogram_quantile).
 

app/vmselect/vmui/assets/rolldown-runtime-CNC7AqOf.js

@@ -1 +0,0 @@
-var e=Object.create,t=Object.defineProperty,n=Object.getOwnPropertyDescriptor,r=Object.getOwnPropertyNames,i=Object.getPrototypeOf,a=Object.prototype.hasOwnProperty,o=(e,t,n)=>()=>{if(n)throw n[0];try{return e&&(t=e(e=0)),t}catch(e){throw n=[e],e}},s=(e,t)=>()=>(t||(e((t={exports:{}}).exports,t),e=null),t.exports),c=(e,n)=>{let r={};for(var i in e)t(r,i,{get:e[i],enumerable:!0});return n||t(r,Symbol.toStringTag,{value:`Module`}),r},l=(e,i,o,s)=>{if(i&&typeof i==`object`||typeof i==`function`)for(var c=r(i),l=0,u=c.length,d;l<u;l++)d=c[l],!a.call(e,d)&&d!==o&&t(e,d,{get:(e=>i[e]).bind(null,d),enumerable:!(s=n(i,d))||s.enumerable});return e},u=(n,r,a)=>(a=n==null?{}:e(i(n)),l(r||!n||!n.__esModule?t(a,`default`,{value:n,enumerable:!0}):a,n)),d=e=>a.call(e,`module.exports`)?e[`module.exports`]:l(t({},`__esModule`,{value:!0}),e);export{u as a,d as i,o as n,c as r,s as t};

app/vmselect/vmui/assets/rolldown-runtime-Cyuzqnbw.js

@@ -0,0 +1 @@
+var e=Object.create,t=Object.defineProperty,n=Object.getOwnPropertyDescriptor,r=Object.getOwnPropertyNames,i=Object.getPrototypeOf,a=Object.prototype.hasOwnProperty,o=(e,t)=>()=>(e&&(t=e(e=0)),t),s=(e,t)=>()=>(t||(e((t={exports:{}}).exports,t),e=null),t.exports),c=(e,n)=>{let r={};for(var i in e)t(r,i,{get:e[i],enumerable:!0});return n||t(r,Symbol.toStringTag,{value:`Module`}),r},l=(e,i,o,s)=>{if(i&&typeof i==`object`||typeof i==`function`)for(var c=r(i),l=0,u=c.length,d;l<u;l++)d=c[l],!a.call(e,d)&&d!==o&&t(e,d,{get:(e=>i[e]).bind(null,d),enumerable:!(s=n(i,d))||s.enumerable});return e},u=(n,r,a)=>(a=n==null?{}:e(i(n)),l(r||!n||!n.__esModule?t(a,`default`,{value:n,enumerable:!0}):a,n)),d=e=>a.call(e,`module.exports`)?e[`module.exports`]:l(t({},`__esModule`,{value:!0}),e);export{u as a,d as i,o as n,c as r,s as t};

app/vmselect/vmui/index.html

@@ -37,11 +37,11 @@
   <meta property="og:title" content="UI for VictoriaMetrics">
   <meta property="og:url" content="https://victoriametrics.com/">
   <meta property="og:description" content="Explore and troubleshoot your VictoriaMetrics data">
-  <script type="module" crossorigin src="./assets/index-D5egN2id.js"></script>
-  <link rel="modulepreload" crossorigin href="./assets/rolldown-runtime-CNC7AqOf.js">
-  <link rel="modulepreload" crossorigin href="./assets/vendor-DwJYpOdw.js">
+  <script type="module" crossorigin src="./assets/index-CusQvJzs.js"></script>
+  <link rel="modulepreload" crossorigin href="./assets/rolldown-runtime-Cyuzqnbw.js">
+  <link rel="modulepreload" crossorigin href="./assets/vendor-B83wxFqK.js">
   <link rel="stylesheet" crossorigin href="./assets/vendor-CnsZ1jie.css">
-  <link rel="stylesheet" crossorigin href="./assets/index-BJqoElx2.css">
+  <link rel="stylesheet" crossorigin href="./assets/index-BBUnmLOr.css">
 </head>
 <body>
 <noscript>You need to enable JavaScript to run this app.</noscript>

app/vmstorage/main.go

@@ -30,14 +30,6 @@ var (
 		"See https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#retention. See also -retentionFilter")
 	futureRetention = flagutil.NewRetentionDuration("futureRetention", "2d", "Data with timestamps bigger than now+futureRetention is automatically deleted. "+
 		"The minimum futureRetention is 2 days. See https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#retention")
-	maxBackfillAge = flagutil.NewRetentionDuration("maxBackfillAge", "0", "The maximum allowed age for the ingested samples with historical timestamps. "+
-		"Samples with timestamps older than now-maxBackfillAge are rejected during data ingestion. "+
-		"By default, or when set to 0, -maxBackfillAge equals to -retentionPeriod, e.g. it is unlimited within the configured retention. "+
-		"This can be useful for limiting ingestion of historical samples, for example, when older data has been moved to another storage tier. "+
-		"See https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#retention")
-	vmselectAddr                  = flag.String("vmselectAddr", "", "TCP address to accept connections from vmselect services")
-	vmselectDisableRPCCompression = flag.Bool("rpc.disableCompression", false, "Whether to disable compression of the data sent from vmstorage to vmselect. "+
-		"This reduces CPU usage at the cost of higher network bandwidth usage")
 	snapshotAuthKey   = flagutil.NewPassword("snapshotAuthKey", "authKey, which must be passed in query string to /snapshot* pages. It overrides -httpAuth.*")
 	forceMergeAuthKey = flagutil.NewPassword("forceMergeAuthKey", "authKey, which must be passed in query string to /internal/force_merge pages. It overrides -httpAuth.*")
 	forceFlushAuthKey = flagutil.NewPassword("forceFlushAuthKey", "authKey, which must be passed in query string to /internal/force_flush pages. It overrides -httpAuth.*")
@@ -116,7 +108,7 @@ func DataPath() string {
 }
 
 // Init initializes vmstorage.
-func Init(vmselectMaxConcurrentRequests int, vmselectMaxQueueDuration time.Duration, resetCacheIfNeeded func(mrs []storage.MetricRow)) {
+func Init(vmselectMaxConcurrentRequests int, resetCacheIfNeeded func(mrs []storage.MetricRow)) {
 	storage.SetDedupInterval(*minScrapeInterval)
 	storage.SetDataFlushInterval(*inmemoryDataFlushInterval)
 	storage.LegacySetRetentionTimezoneOffset(*retentionTimezoneOffset)
@@ -151,7 +143,6 @@ func Init(vmselectMaxConcurrentRequests int, vmselectMaxQueueDuration time.Durat
 	opts := storage.OpenOptions{
 		Retention:                   retentionPeriod.Duration(),
 		FutureRetention:             futureRetention.Duration(),
-		MaxBackfillAge:              maxBackfillAge.Duration(),
 		DenyQueriesOutsideRetention: *denyQueriesOutsideRetention,
 		MaxHourlySeries:             getMaxHourlySeries(),
 		MaxDailySeries:              getMaxDailySeries(),
@@ -178,21 +169,6 @@ func Init(vmselectMaxConcurrentRequests int, vmselectMaxQueueDuration time.Durat
 	storageMetrics.RegisterMetricsWriter(vmStorage.writeStorageMetrics)
 	metrics.RegisterSet(storageMetrics)
 
-	if *vmselectAddr != "" {
-		var err error
-		limits := vmselectapi.Limits{
-			MaxConcurrentRequests:         vmselectMaxConcurrentRequests,
-			MaxConcurrentRequestsFlagName: "search.maxConcurrentRequests",
-			MaxQueueDuration:              vmselectMaxQueueDuration,
-			MaxQueueDurationFlagName:      "search.maxQueueDuration",
-		}
-		api := newVMStorageWithTenantID(vmStorage)
-		vmselectSrv, err = vmselectapi.NewServer(*vmselectAddr, api, limits, *vmselectDisableRPCCompression)
-		if err != nil {
-			logger.Fatalf("cannot create a server with -vmselectAddr=%s: %s", *vmselectAddr, err)
-		}
-	}
-
 	VMInsertAPI = vmStorage
 	VMSelectAPI = vmStorage
 	GetSearch = vmStorage.GetSearch
@@ -215,8 +191,6 @@ var (
 
 	// TODO(@rtm0): Remove this dependency from vmalert-tool unit tests.
 	DebugFlush func()
-
-	vmselectSrv *vmselectapi.Server
 )
 
 // Stop stops the vmstorage
@@ -227,10 +201,6 @@ func Stop() {
 
 	logger.Infof("gracefully closing the storage at %s", *storageDataPath)
 	startTime := time.Now()
-
-	if vmselectSrv != nil {
-		vmselectSrv.MustStop()
-	}
 	vmStorage.Stop()
 	logger.Infof("successfully closed the storage in %.3f seconds", time.Since(startTime).Seconds())
 
@@ -473,10 +443,8 @@ func (vms *VMStorage) writeStorageMetrics(w io.Writer) {
 	metrics.WriteGaugeUint64(w, `vm_data_size_bytes{type="storage/inmemory"}`, tm.InmemorySizeBytes)
 	metrics.WriteGaugeUint64(w, `vm_data_size_bytes{type="storage/small"}`, tm.SmallSizeBytes)
 	metrics.WriteGaugeUint64(w, `vm_data_size_bytes{type="storage/big"}`, tm.BigSizeBytes)
-	metrics.WriteGaugeUint64(w, `vm_data_size_bytes{type="storage/metaindex"}`, tm.MetaindexSizeBytes)
 	metrics.WriteGaugeUint64(w, `vm_data_size_bytes{type="indexdb/inmemory"}`, idbm.InmemorySizeBytes)
 	metrics.WriteGaugeUint64(w, `vm_data_size_bytes{type="indexdb/file"}`, idbm.FileSizeBytes)
-	metrics.WriteGaugeUint64(w, `vm_data_size_bytes{type="indexdb/metaindex"}`, idbm.MetaindexSizeBytes)
 
 	metrics.WriteCounterUint64(w, `vm_rows_received_by_storage_total`, m.RowsReceivedTotal)
 	metrics.WriteCounterUint64(w, `vm_rows_added_to_storage_total`, m.RowsAddedTotal)

app/vmstorage/vmstorage.go

@@ -164,10 +164,6 @@ func (vms *VMStorage) IsReadOnly() bool {
 }
 
 func (vms *VMStorage) InitSearch(qt *querytracer.Tracer, sq *storage.SearchQuery, deadline uint64) (vmselectapi.BlockIterator, error) {
-	return vms.initSearch(qt, sq, marshalDefault, deadline)
-}
-
-func (vms *VMStorage) initSearch(qt *querytracer.Tracer, sq *storage.SearchQuery, marshal marshalFunc, deadline uint64) (vmselectapi.BlockIterator, error) {
 	vms.wg.Add(1)
 
 	tr := sq.GetTimeRange()
@@ -182,7 +178,6 @@ func (vms *VMStorage) initSearch(qt *querytracer.Tracer, sq *storage.SearchQuery
 		return nil, fmt.Errorf("missing tag filters")
 	}
 	bi := getBlockIterator()
-	bi.marshal = marshal
 	bi.wgDone = vms.wg.Done
 	bi.sr.Init(qt, vms.s, tfss, tr, maxMetrics, deadline)
 	if err := bi.sr.Error(); err != nil {
@@ -203,19 +198,11 @@ func (vms *VMStorage) getMaxMetrics(searchQueryLimit int) int {
 	return searchQueryLimit
 }
 
-type marshalFunc func(dst []byte, src *storage.MetricBlock) []byte
-
-// marshalDefault is the default implementation of the MetricBlock marshaling.
-func marshalDefault(dst []byte, src *storage.MetricBlock) []byte {
-	return src.Marshal(dst)
-}
-
 // blockIterator implements vmselectapi.BlockIterator
 type blockIterator struct {
-	sr      storage.Search
-	mb      storage.MetricBlock
-	marshal marshalFunc
-	wgDone  func()
+	sr     storage.Search
+	mb     storage.MetricBlock
+	wgDone func()
 }
 
 var blockIteratorsPool sync.Pool
@@ -241,10 +228,10 @@ func (bi *blockIterator) NextBlock(dst []byte) ([]byte, bool) {
 	if !bi.sr.NextMetricBlock() {
 		return dst, false
 	}
-	mb := &bi.mb
+	mb := bi.mb
 	mb.MetricName = bi.sr.MetricBlockRef.MetricName
 	bi.sr.MetricBlockRef.BlockRef.MustReadBlock(&mb.Block)
-	dst = bi.marshal(dst[:0], mb)
+	dst = mb.Marshal(dst[:0])
 	return dst, true
 }
 

app/vmstorage/vmstorage_with_tenant_id.go

@@ -1,282 +0,0 @@
-package vmstorage
-
-import (
-	"flag"
-	"fmt"
-	"math"
-
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/querytracer"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage/metricnamestats"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage/metricsmetadata"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/vmselectapi"
-)
-
-var (
-	accountID = flag.Uint64("accountID", 0, "The accountID of the stored data")
-	projectID = flag.Uint64("projectID", 0, "The projectID of the stored data")
-)
-
-func newVMStorageWithTenantID(vms *VMStorage) *VMStorageWithTenantID {
-	if *accountID > math.MaxUint32 {
-		logger.Fatalf("-accountID must be in the range [0, %d], got %d", uint32(math.MaxUint32), *accountID)
-	}
-	if *projectID > math.MaxUint32 {
-		logger.Fatalf("-projectID must be in the range [0, %d], got %d", uint32(math.MaxUint32), *projectID)
-	}
-	return &VMStorageWithTenantID{
-		vms:       vms,
-		accountID: uint32(*accountID),
-		projectID: uint32(*projectID),
-	}
-}
-
-// VMStorageWithTenantID is a thin wrapper around VMStorage type that overrides
-// its methods to properly serve requests coming from a vmselect (require
-// tenantID).
-//
-// A new instance of this type should be created using
-// newVMStorageWithTenantID(). The created instance does not require closing.
-// The instance also does not take ownership of vms and it is the responsibility
-// of the caller to close vms.
-type VMStorageWithTenantID struct {
-	vms *VMStorage
-
-	accountID uint32
-	projectID uint32
-}
-
-// InitSearch initializes a storage search for a request initiated by a
-// vmselect.
-//
-// The search is initialized only if the search query is either multitenant or
-// its accountID and projectID match -accountID and -projectID flag values.
-// Otherwise, the method returns an interator that will return no data.
-//
-// The method also overrides the data format of the data returned by the
-// iterator by prepending accountID and projectID bytes to the metric name and
-// the data block (a format used in vmcluster).
-func (vmst *VMStorageWithTenantID) InitSearch(qt *querytracer.Tracer, sq *storage.SearchQuery, deadline uint64) (vmselectapi.BlockIterator, error) {
-	if !vmst.hasValidTenantID(sq) {
-		return emptyBI, nil
-	}
-	return vmst.vms.initSearch(qt, sq, vmst.marshalMetricBlock, deadline)
-}
-
-var emptyBI = &emptyBlockIterator{}
-
-// emptyBlockIterator is an implementation of vmselectapi.BlockIterator that
-// always returns no data.
-type emptyBlockIterator struct{}
-
-func (*emptyBlockIterator) MustClose() {}
-
-func (*emptyBlockIterator) NextBlock(dst []byte) ([]byte, bool) {
-	return dst, false
-}
-
-func (*emptyBlockIterator) Error() error {
-	return nil
-}
-
-// marshalMetricBlock serializes a metric block in the format expected by
-// vmselect.
-//
-// vmselect expects metric names and data blocks to have the tenantID but
-// vmsingle does not have it. Therefore the tenantID needs to be included to
-// every metric name and block.
-func (vmst *VMStorageWithTenantID) marshalMetricBlock(dst []byte, src *storage.MetricBlock) []byte {
-	// Marshal metric name:
-	// 1. Marshal metric name length + accountID length + projectID length (in
-	//    bytes).
-	// 2. append accountID and projectID bytes
-	// 3. Finally append metric name bytes
-	dst = encoding.MarshalVarUint64(dst, uint64(len(src.MetricName))+8)
-	dst = encoding.MarshalUint32(dst, vmst.accountID)
-	dst = encoding.MarshalUint32(dst, vmst.projectID)
-	dst = append(dst, src.MetricName...)
-
-	// Marshal data block.
-	dst = encoding.MarshalUint32(dst, vmst.accountID)
-	dst = encoding.MarshalUint32(dst, vmst.projectID)
-	dst = storage.MarshalBlock(dst, &src.Block)
-
-	return dst
-}
-
-// SearchMetricNames searches the storage for metric names that match the query.
-//
-// If the query is not multitenant or the query accountID and projectID do not
-// match the -accoutID and -projectID flag values, the method will return an
-// empty result.
-//
-// Found metric names are prepended with accountID and projectID bytes (a format
-// used in vmcluster).
-func (vmst *VMStorageWithTenantID) SearchMetricNames(qt *querytracer.Tracer, sq *storage.SearchQuery, deadline uint64) ([]string, error) {
-	if !vmst.hasValidTenantID(sq) {
-		return nil, nil
-	}
-
-	metricNames, err := vmst.vms.SearchMetricNames(qt, sq, deadline)
-	if err != nil {
-		return nil, err
-	}
-
-	// vmselect expects metric names to have the tenantID but vmsingle does not
-	// have it. Therefore the tenantID needs to be prepended to every metric
-	// name.
-	dst := make([]byte, 0, 8)
-	dst = encoding.MarshalUint32(dst, vmst.accountID)
-	dst = encoding.MarshalUint32(dst, vmst.projectID)
-	tenantID := string(dst)
-
-	for i, metricName := range metricNames {
-		metricNames[i] = tenantID + metricName
-	}
-	return metricNames, nil
-}
-
-// LabelValues searches the storage for label values that match the query and
-// correspond to a label whose name is `labelName`. The returned result
-// will contain not more than `maxLabelValues`.
-//
-// If the query is not multitenant or the query accountID and projectID do not
-// match the -accoutID and -projectID flag values, the method will return an
-// empty result.
-func (vmst *VMStorageWithTenantID) LabelValues(qt *querytracer.Tracer, sq *storage.SearchQuery, labelName string, maxLabelValues int, deadline uint64) ([]string, error) {
-	if !vmst.hasValidTenantID(sq) {
-		return nil, nil
-	}
-	return vmst.vms.LabelValues(qt, sq, labelName, maxLabelValues, deadline)
-}
-
-// TagValueSuffixes searches the storage for Graphite tag value suffixes. The
-// returned result will contain not more than `maxSuffixes`.
-//
-// If the query is not multitenant or the query accountID and projectID do not
-// match the -accoutID and -projectID flag values, the method will return an
-// empty result.
-func (vmst *VMStorageWithTenantID) TagValueSuffixes(qt *querytracer.Tracer, accountID, projectID uint32, tr storage.TimeRange, tagKey, tagValuePrefix string, delimiter byte, maxSuffixes int, deadline uint64) ([]string, error) {
-	if !vmst.isValidTenantID(accountID, projectID) {
-		return nil, nil
-	}
-	return vmst.vms.TagValueSuffixes(qt, accountID, projectID, tr, tagKey, tagValuePrefix, delimiter, maxSuffixes, deadline)
-}
-
-// LabelNames searches the storage for label names that match the query.
-// The returned result will contain not more than `maxLabelNames`.
-//
-// If the query is not multitenant or the query accountID and projectID do not
-// match the -accoutID and -projectID flag values, the method will return an
-// empty result.
-func (vmst *VMStorageWithTenantID) LabelNames(qt *querytracer.Tracer, sq *storage.SearchQuery, maxLabelNames int, deadline uint64) ([]string, error) {
-	if !vmst.hasValidTenantID(sq) {
-		return nil, nil
-	}
-	return vmst.vms.LabelNames(qt, sq, maxLabelNames, deadline)
-}
-
-// SeriesCount returns the total number of metrics stored in the database.
-//
-// The method may return inflated numbers. How inflated the count depends
-// on the churn rate and the retention period. For example, if a metric lasts
-// for 2 months, it will be counted twice.
-//
-// The method also counts the deleted metrics.
-//
-// If the query is not multitenant or the query accountID and projectID do not
-// match the -accoutID and -projectID flag values, the method will return 0.
-func (vmst *VMStorageWithTenantID) SeriesCount(qt *querytracer.Tracer, accountID, projectID uint32, deadline uint64) (uint64, error) {
-	if !vmst.isValidTenantID(accountID, projectID) {
-		return 0, nil
-	}
-	return vmst.vms.SeriesCount(qt, accountID, projectID, deadline)
-}
-
-// Tenants returns just one tenant consisting of the -accountID and -projectID
-// flag values.
-func (vmst *VMStorageWithTenantID) Tenants(qt *querytracer.Tracer, tr storage.TimeRange, deadline uint64) ([]string, error) {
-	tenantID := fmt.Sprintf("%d:%d", vmst.accountID, vmst.projectID)
-	return []string{tenantID}, nil
-}
-
-// TSDBStatus retrieves the status for metrics that match to the search query.
-//
-// If the query is not multitenant or the query accountID and projectID do not
-// match the -accoutID and -projectID flag values, the method will return empty
-// status.
-func (vmst *VMStorageWithTenantID) TSDBStatus(qt *querytracer.Tracer, sq *storage.SearchQuery, focusLabel string, topN int, deadline uint64) (*storage.TSDBStatus, error) {
-	if !vmst.hasValidTenantID(sq) {
-		return &storage.TSDBStatus{}, nil
-	}
-	return vmst.vms.TSDBStatus(qt, sq, focusLabel, topN, deadline)
-}
-
-// DeleteSeries marks as deleted metrics that match the search query.
-// The method returns the number of deleted metrics.
-//
-// If the query is not multitenant or the query accountID and projectID do not
-// match the -accoutID and -projectID flag values, no metrics will be deleted
-// and the method will return 0.
-func (vmst *VMStorageWithTenantID) DeleteSeries(qt *querytracer.Tracer, sq *storage.SearchQuery, deadline uint64) (int, error) {
-	if !vmst.hasValidTenantID(sq) {
-		return 0, nil
-	}
-	return vmst.vms.DeleteSeries(qt, sq, deadline)
-}
-
-// RegisterMetricNames registers metric names in the index, the sample values
-// and timestamps are ignored.
-func (vmst *VMStorageWithTenantID) RegisterMetricNames(qt *querytracer.Tracer, mrs []storage.MetricRow, deadline uint64) error {
-	return vmst.vms.RegisterMetricNames(qt, mrs, deadline)
-}
-
-// GetMetricNamesUsageStats retrieves the usage stats for metrics whose name
-// matches the pattern.
-//
-// If the request is not multitenant or the request accountID and projectID do
-// not match the -accoutID and -projectID flag values, no metrics will be
-// deleted and the method will return 0.
-func (vmst *VMStorageWithTenantID) GetMetricNamesUsageStats(qt *querytracer.Tracer, tt *storage.TenantToken, limit, le int, matchPattern string, deadline uint64) (metricnamestats.StatsResult, error) {
-	if !vmst.isValidTenantToken(tt) {
-		return metricnamestats.StatsResult{}, nil
-	}
-	return vmst.vms.GetMetricNamesUsageStats(qt, tt, limit, le, matchPattern, deadline)
-}
-
-// ResetMetricNamesUsageStats resets the metric name usage stats.
-func (vmst *VMStorageWithTenantID) ResetMetricNamesUsageStats(qt *querytracer.Tracer, deadline uint64) error {
-	return vmst.vms.ResetMetricNamesUsageStats(qt, deadline)
-}
-
-// GetMetadataRecords retrieves the metadata for the metricName.
-//
-// If the request is not multitenant or the request accountID and projectID do
-// not match the -accoutID and -projectID flag values, no metrics will be
-// deleted and the method will return 0.
-func (vmst *VMStorageWithTenantID) GetMetadataRecords(qt *querytracer.Tracer, tt *storage.TenantToken, limit int, metricName string, deadline uint64) ([]*metricsmetadata.Row, error) {
-	if !vmst.isValidTenantToken(tt) {
-		return nil, nil
-	}
-	return vmst.vms.GetMetadataRecords(qt, tt, limit, metricName, deadline)
-}
-
-// hasValidTenantID returns true if the search query is either multitenant or
-// its accountID and projectID match -accountID and -projectID flag values.
-func (vmst *VMStorageWithTenantID) hasValidTenantID(sq *storage.SearchQuery) bool {
-	return sq.IsMultiTenant || vmst.isValidTenantID(sq.AccountID, sq.ProjectID)
-}
-
-// isValidTenantToken returns true if the TenantToken is either multitenant or
-// its accountID and projectID match -accountID and -projectID flag values.
-func (vmst *VMStorageWithTenantID) isValidTenantToken(tt *storage.TenantToken) bool {
-	return tt == nil || vmst.isValidTenantID(tt.AccountID, tt.ProjectID)
-}
-
-// isValidTenantID returns true if the accountID and projectID match -accountID
-// and -projectID flag values.
-func (vmst *VMStorageWithTenantID) isValidTenantID(accountID, projectID uint32) bool {
-	return accountID == vmst.accountID && projectID == vmst.projectID
-}

app/vmui/Dockerfile-web

@@ -1,4 +1,4 @@
-FROM golang:1.26.5 AS build-web-stage
+FROM golang:1.26.4 AS build-web-stage
 COPY build /build
 
 WORKDIR /build

app/vmui/packages/vmui/package.json

@@ -23,40 +23,40 @@
     "classnames": "^2.5.1",
     "dayjs": "^1.11.21",
     "lodash.debounce": "^4.0.8",
-    "marked": "^18.0.6",
-    "preact": "^10.29.7",
-    "qs": "^6.15.3",
+    "marked": "^18.0.5",
+    "preact": "^10.29.2",
+    "qs": "^6.15.2",
     "react-input-mask": "^2.0.4",
-    "react-router-dom": "^7.18.1",
+    "react-router-dom": "^7.17.0",
     "uplot": "^1.6.32",
-    "vite": "^8.1.4",
+    "vite": "^8.0.16",
     "web-vitals": "^5.3.0"
   },
   "devDependencies": {
-    "@eslint/eslintrc": "^3.3.6",
+    "@eslint/eslintrc": "^3.3.5",
     "@eslint/js": "^9.39.2",
     "@preact/preset-vite": "^2.10.5",
     "@testing-library/jest-dom": "^6.9.1",
     "@testing-library/preact": "^3.2.4",
     "@types/lodash.debounce": "^4.0.9",
-    "@types/node": "^26.1.1",
+    "@types/node": "^25.9.2",
     "@types/qs": "^6.15.1",
     "@types/react": "^19.2.17",
     "@types/react-input-mask": "^3.0.6",
     "@types/react-router-dom": "^5.3.3",
-    "@typescript-eslint/eslint-plugin": "^8.64.0",
-    "@typescript-eslint/parser": "^8.64.0",
+    "@typescript-eslint/eslint-plugin": "^8.61.0",
+    "@typescript-eslint/parser": "^8.61.0",
     "cross-env": "^10.1.0",
     "eslint": "^9.39.2",
     "eslint-plugin-react": "^7.37.5",
     "eslint-plugin-unused-imports": "^4.4.1",
-    "globals": "^17.7.0",
-    "http-proxy-middleware": "^4.2.0",
+    "globals": "^17.6.0",
+    "http-proxy-middleware": "^4.1.0",
     "jsdom": "^29.1.1",
-    "postcss": "^8.5.19",
+    "postcss": "^8.5.15",
     "sass-embedded": "^1.100.0",
     "typescript": "^6.0.3",
-    "vitest": "^4.1.10"
+    "vitest": "^4.1.8"
   },
   "browserslist": {
     "production": [

app/vmui/packages/vmui/src/assets/MetricsQL.md

@@ -91,9 +91,9 @@ The list of MetricsQL features on top of PromQL:
   Labels from the `on()` list aren't copied.
 * [Aggregate functions](#aggregate-functions) accept arbitrary number of args.
   For example, `avg(q1, q2, q3)` would return the average values for every point across time series returned by `q1`, `q2` and `q3`.
-* [@ modifier](https://prometheus.io/docs/prometheus/latest/querying/basics/#-modifier) can be put anywhere in the query.
+* [@ modifier](https://prometheus.io/docs/prometheus/latest/querying/basics/#modifier) can be put anywhere in the query.
   For example, `sum(foo) @ end()` calculates `sum(foo)` at the `end` timestamp of the selected time range `[start ... end]`.
-* Arbitrary subexpression can be used as [@ modifier](https://prometheus.io/docs/prometheus/latest/querying/basics/#-modifier).
+* Arbitrary subexpression can be used as [@ modifier](https://prometheus.io/docs/prometheus/latest/querying/basics/#modifier).
   For example, `foo @ (end() - 1h)` calculates `foo` at the `end - 1 hour` timestamp on the selected time range `[start ... end]`.
 * [offset](https://prometheus.io/docs/prometheus/latest/querying/basics/#offset-modifier), lookbehind window in square brackets
   and `step` value for [subquery](#subqueries) may refer to the current step aka `$__interval` value from Grafana with `[Ni]` syntax.
@@ -482,7 +482,7 @@ See also [hoeffding_bound_lower](#hoeffding_bound_lower).
 #### holt_winters
 
 `holt_winters(series_selector[d], sf, tf)` is a [rollup function](#rollup-functions), which calculates Holt-Winters value
-(aka [double exponential smoothing](https://en.wikipedia.org/wiki/Exponential_smoothing#Double_exponential_smoothing_%28Holt_linear%29)) for [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
+(aka [double exponential smoothing](https://en.wikipedia.org/wiki/Exponential_smoothing#Double_exponential_smoothing)) for [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
 over the given lookbehind window `d` using the given smoothing factor `sf` and the given trend factor `tf`.
 Both `sf` and `tf` must be in the range `[0...1]`.
 
@@ -1154,7 +1154,7 @@ See also [asin](#asin) and [cos](#cos).
 #### acosh
 
 `acosh(q)` is a [transform function](#transform-functions), which returns
-[inverse hyperbolic cosine](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Definitions_in_terms_of_logarithms) for every point of every time series returned by `q`.
+[inverse hyperbolic cosine](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Inverse_hyperbolic_cosine) for every point of every time series returned by `q`.
 
 Metric names are stripped from the resulting series. Add [keep_metric_names](#keep_metric_names) modifier in order to keep metric names.
 
@@ -1176,7 +1176,7 @@ See also [acos](#acos) and [sin](#sin).
 #### asinh
 
 `asinh(q)` is a [transform function](#transform-functions), which returns
-[inverse hyperbolic sine](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Definitions_in_terms_of_logarithms) for every point of every time series returned by `q`.
+[inverse hyperbolic sine](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Inverse_hyperbolic_sine) for every point of every time series returned by `q`.
 
 Metric names are stripped from the resulting series. Add [keep_metric_names](#keep_metric_names) modifier in order to keep metric names.
 
@@ -1198,7 +1198,7 @@ See also [tan](#tan).
 #### atanh
 
 `atanh(q)` is a [transform function](#transform-functions), which returns
-[inverse hyperbolic tangent](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Definitions_in_terms_of_logarithms) for every point of every time series returned by `q`.
+[inverse hyperbolic tangent](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Inverse_hyperbolic_tangent) for every point of every time series returned by `q`.
 
 Metric names are stripped from the resulting series. Add [keep_metric_names](#keep_metric_names) modifier in order to keep metric names.
 
@@ -1229,7 +1229,8 @@ Metric names are stripped from the resulting series. Add [keep_metric_names](#ke
 `buckets_limit(limit, buckets)` is a [transform function](#transform-functions), which limits the number
 of [histogram buckets](https://valyala.medium.com/improving-histogram-usability-for-prometheus-and-grafana-bc7e5df0e350) to the given `limit`. 
 
-The given `limit` should be greater than `0`. If it is less than `3`, it will be automatically raised to `3` to preserve the first and last buckets for better accuracy of min and max values.
+The result will preserve the first and the last bucket to improve accuracy for min and max values. 
+So, if the `limit` is greater than 0 and less than 3, the function will still return 3 buckets: the first bucket, the last bucket, and a selected bucket.
 
 See also [prometheus_buckets](#prometheus_buckets) and [histogram_quantile](#histogram_quantile).
 

app/vmui/packages/vmui/src/components/Configurators/StepConfigurator/StepConfigurator.tsx

@@ -183,7 +183,7 @@ const StepConfigurator: FC = () => {
           <div className="vm-step-control-popper-info">
             <p>
               <code>step</code> - the <Hyperlink
-                href="https://prometheus.io/docs/prometheus/latest/querying/basics/#float-literals-and-time-durations"
+                href="https://prometheus.io/docs/prometheus/latest/querying/basics/#time-durations"
                 text="interval"
               /> between datapoints, which must be returned from the range query.
               The <code>query</code> is executed

app/vmui/packages/vmui/src/components/ExploreAlerts/BaseAlert/index.tsx

@@ -98,7 +98,7 @@ const BaseAlert = ({ item, group }: BaseAlertProps) => {
       {!!Object.keys(item.annotations || {}).length && (
         <>
           <span className="vm-alerts-title">Annotations</span>
-          <table className="vm-annotations-table">
+          <table>
             <colgroup>
               <col className="vm-col-md"/>
               <col/>

app/vmui/packages/vmui/src/components/ExploreAlerts/BaseRule/index.tsx

@@ -121,7 +121,7 @@ const BaseRule = ({ item, group }: BaseRuleProps) => {
       {!!Object.keys(item?.annotations || {}).length && (
         <>
           <span className="vm-alerts-title">Annotations</span>
-          <table className="vm-annotations-table">
+          <table>
             <colgroup>
               <col className="vm-col-md"/>
               <col/>

app/vmui/packages/vmui/src/layouts/Header/HeaderNav/HeaderNav.tsx

@@ -17,12 +17,10 @@ interface HeaderNavProps {
 const HeaderNav: FC<HeaderNavProps> = ({ color, background, direction }) => {
   const { pathname } = useLocation();
   const [activeMenu, setActiveMenu] = useState(pathname);
-  const [openMenu, setOpenMenu] = useState<string | null>(null);
   const menu = useNavigationMenu();
 
   useEffect(() => {
     setActiveMenu(pathname);
-    setOpenMenu(null);
   }, [pathname]);
 
   return (
@@ -43,8 +41,6 @@ const HeaderNav: FC<HeaderNavProps> = ({ color, background, direction }) => {
               color={color}
               background={background}
               direction={direction}
-              openMenu={openMenu}
-              setOpenMenu={setOpenMenu}
             />
           )
           : (

app/vmui/packages/vmui/src/layouts/Header/HeaderNav/NavSubItem.tsx

@@ -1,8 +1,11 @@
-import { FC, useRef, useState, Dispatch, SetStateAction } from "preact/compat";
+import { FC, useRef, useState } from "preact/compat";
+import { useLocation } from "react-router-dom";
 import classNames from "classnames";
 import { ArrowDropDownIcon } from "../../../components/Main/Icons";
 import Popper from "../../../components/Main/Popper/Popper";
 import NavItem from "./NavItem";
+import { useEffect } from "react";
+import useBoolean from "../../../hooks/useBoolean";
 import { NavigationItem, NavigationItemType } from "../../../router/navigation";
 
 interface NavItemProps {
@@ -12,8 +15,6 @@ interface NavItemProps {
   color?: string
   background?: string
   direction?: "row" | "column"
-  openMenu: string | null,
-  setOpenMenu: Dispatch<SetStateAction<string | null>>,
 }
 
 const NavSubItem: FC<NavItemProps> = ({
@@ -22,18 +23,21 @@ const NavSubItem: FC<NavItemProps> = ({
   color,
   background,
   submenu,
-  direction = "row",
-  openMenu,
-  setOpenMenu,
+  direction = "row"
 }) => {
+  const { pathname } = useLocation();
+
   const [menuTimeout, setMenuTimeout] = useState<NodeJS.Timeout | null>(null);
   const buttonRef = useRef<HTMLDivElement>(null);
 
-  const openSubmenu = openMenu === label;
-  const handleCloseSubmenu = () => setOpenMenu(prev => (prev === label ? null : prev));
+  const {
+    value: openSubmenu,
+    setFalse: handleCloseSubmenu,
+    setTrue: setOpenSubmenu,
+  } = useBoolean(false);
 
   const handleOpenSubmenu = () => {
-    if (direction === "row" || !openSubmenu) setOpenMenu(label);
+    if (direction === "row" || !openSubmenu) setOpenSubmenu();
     if (direction === "column" && openSubmenu) handleCloseSubmenu();
     if (direction === "row" && menuTimeout) clearTimeout(menuTimeout);
   };
@@ -48,6 +52,10 @@ const NavSubItem: FC<NavItemProps> = ({
     if (menuTimeout) clearTimeout(menuTimeout);
   };
 
+  useEffect(() => {
+    handleCloseSubmenu();
+  }, [pathname]);
+
   return (
     <div
       className={classNames({

app/vmui/packages/vmui/src/pages/CardinalityPanel/CardinalityTotals/CardinalityTotals.tsx

@@ -32,7 +32,7 @@ const CardinalityTotals: FC<CardinalityTotalsProps> = ({
   const match = searchParams.get("match");
   const focusLabel = searchParams.get("focusLabel");
   const isMetric = /__name__/.test(match || "");
-  const showMetricNameStats = !(match || focusLabel);
+
   const progress = totalSeries / totalSeriesAll * 100;
   const diff = totalSeries - totalSeriesPrev;
   const dynamic = Math.abs(diff) / totalSeriesPrev * 100;
@@ -56,7 +56,7 @@ const CardinalityTotals: FC<CardinalityTotalsProps> = ({
     },
   ].filter(t => t.display);
 
-  if (!totals.length && !showMetricNameStats) {
+  if (!totals.length) {
     return null;
   }
 
@@ -75,7 +75,7 @@ const CardinalityTotals: FC<CardinalityTotalsProps> = ({
           <h4 className="vm-cardinality-totals-card__title">
             {info && (
               <Tooltip title={<p className="vm-cardinality-totals-card__tooltip">{info}</p>}>
-                <div className="vm-cardinality-totals-card__info-icon"><InfoOutlinedIcon /></div>
+                <div className="vm-cardinality-totals-card__info-icon"><InfoOutlinedIcon/></div>
               </Tooltip>
             )}
             {title}
@@ -99,10 +99,7 @@ const CardinalityTotals: FC<CardinalityTotalsProps> = ({
           )}
         </div>
       ))}
-      {
-        showMetricNameStats &&
-        <CardinalityMetricNameStats metricNameStats={metricNameStats} />
-      }
+      <CardinalityMetricNameStats metricNameStats={metricNameStats}/>
     </div>
   );
 };

app/vmui/packages/vmui/src/pages/ExploreAlerts/style.scss

@@ -62,13 +62,6 @@
     padding-right: 40px;
   }
 
-  .vm-annotations-table {
-    tbody > tr > td {
-      vertical-align: top;
-      white-space: pre-line;
-    }
-  }
-
   display: flex;
   flex-direction: column;
   align-items: stretch;

app/vmui/packages/vmui/src/utils/time.ts

@@ -16,7 +16,7 @@ const supportedValuesOf = Intl.supportedValuesOf;
 export const supportedTimezones = supportedValuesOf ? supportedValuesOf("timeZone") as string[] : timezones;
 
 // The list of supported units could be the following -
-// https://prometheus.io/docs/prometheus/latest/querying/basics/#float-literals-and-time-durations
+// https://prometheus.io/docs/prometheus/latest/querying/basics/#time-durations
 export const supportedDurations = [
   { long: "years", short: "y", possible: "year" },
   { long: "weeks", short: "w", possible: "week" },

apptest/testdata.go

@@ -1,358 +0,0 @@
-package apptest
-
-import (
-	"fmt"
-	"slices"
-)
-
-type TestData struct {
-	Samples              []string
-	Step                 int64
-	WantSeries           []map[string]string
-	WantLabels           []string
-	WantLabelValues      []string
-	WantQueryResults     []*QueryResult
-	WantMetadata         map[string][]MetadataEntry
-	WantMetricNamesStats []MetricNamesStatsRecord
-}
-
-func GenerateTestData(prefix string, numMetrics, start, end int64) TestData {
-	d := TestData{
-		Samples:              []string{},
-		Step:                 (end - start) / numMetrics,
-		WantSeries:           make([]map[string]string, numMetrics),
-		WantLabels:           make([]string, numMetrics),
-		WantLabelValues:      make([]string, numMetrics),
-		WantQueryResults:     make([]*QueryResult, numMetrics),
-		WantMetadata:         make(map[string][]MetadataEntry),
-		WantMetricNamesStats: make([]MetricNamesStatsRecord, numMetrics),
-	}
-	for i := range numMetrics {
-		metricName := fmt.Sprintf("%s_%04d", prefix, i)
-		metricHelp := fmt.Sprintf("# HELP %s some help message", metricName)
-		metricType := fmt.Sprintf("# TYPE %s gauge", metricName)
-		labelName := fmt.Sprintf("label_%04d", i)
-		labelValue := fmt.Sprintf("value_%04d", i)
-		value := i
-		timestamp := start + i*d.Step
-		sample := fmt.Sprintf(`%s{%s="value", label="%s"} %d %d`, metricName, labelName, labelValue, value, timestamp)
-
-		d.Samples = append(d.Samples, metricHelp, metricType, sample)
-		d.WantSeries[i] = map[string]string{
-			"__name__": metricName,
-			labelName:  "value",
-			"label":    labelValue,
-		}
-		d.WantLabels[i] = labelName
-		d.WantLabelValues[i] = labelValue
-		d.WantQueryResults[i] = &QueryResult{
-			Metric: map[string]string{
-				"__name__": metricName,
-				labelName:  "value",
-				"label":    labelValue,
-			},
-			Samples: []*Sample{{Timestamp: timestamp, Value: float64(value)}},
-		}
-		d.WantMetadata[metricName] = []MetadataEntry{{Help: "some help message", Type: "gauge"}}
-		d.WantMetricNamesStats[i].MetricName = metricName
-	}
-	d.WantLabels = append(d.WantLabels, "__name__", "label")
-	slices.Sort(d.WantLabels)
-	return d
-}
-
-// AssertSeries retrieves metric names from the storage and compares the result
-// with the expected one.
-func AssertSeries(tc *TestCase, app PrometheusQuerier, metricNameRE, tenantID string, start, end int64, want []map[string]string) {
-	tc.T().Helper()
-
-	query := fmt.Sprintf(`{__name__=~"%s"}`, metricNameRE)
-	tc.Assert(&AssertOptions{
-		Msg: "unexpected /prometheus/api/v1/series response",
-		Got: func() any {
-			tc.T().Helper()
-			return app.PrometheusAPIV1Series(tc.T(), query, QueryOpts{
-				Tenant: tenantID,
-				Start:  fmt.Sprintf("%d", start),
-				End:    fmt.Sprintf("%d", end),
-			}).Sort()
-		},
-		Want: &PrometheusAPIV1SeriesResponse{
-			Status: "success",
-			Data:   want,
-		},
-		Retries: 1000,
-		FailNow: true,
-	})
-}
-
-// AssertSeriesCount retrieves series count and compares it with expected one.
-func AssertSeriesCount(tc *TestCase, app PrometheusQuerier, tenantID string, start, end int64, want uint64) {
-	tc.T().Helper()
-
-	tc.Assert(&AssertOptions{
-		Msg: "unexpected /prometheus/api/v1/series/count response",
-		Got: func() any {
-			tc.T().Helper()
-			return app.PrometheusAPIV1SeriesCount(tc.T(), QueryOpts{
-				Tenant: tenantID,
-				Start:  fmt.Sprintf("%d", start),
-				End:    fmt.Sprintf("%d", end),
-			})
-		},
-		Want: &PrometheusAPIV1SeriesCountResponse{
-			Status: "success",
-			Data:   []uint64{want},
-		},
-		FailNow: true,
-	})
-}
-
-// AssertLabels retrieves label names from the storage and compares the result
-// with the expected one.
-func AssertLabels(tc *TestCase, app PrometheusQuerier, metricNameRE, tenantID string, start, end int64, want []string) {
-	tc.T().Helper()
-
-	query := fmt.Sprintf(`{__name__=~"%s"}`, metricNameRE)
-	tc.Assert(&AssertOptions{
-		Msg: "unexpected /prometheus/api/v1/labels response",
-		Got: func() any {
-			tc.T().Helper()
-			res := app.PrometheusAPIV1Labels(tc.T(), query, QueryOpts{
-				Tenant: tenantID,
-				Start:  fmt.Sprintf("%d", start),
-				End:    fmt.Sprintf("%d", end),
-			})
-			slices.Sort(res.Data)
-			return res
-		},
-		Want: &PrometheusAPIV1LabelsResponse{
-			Status: "success",
-			Data:   want,
-		},
-		FailNow: true,
-	})
-}
-
-// AssertLabelValues retrieves values for the label whose name is labelName for
-// the series whose name mathes metricNameRE, compares the result with the
-// expected one.
-func AssertLabelValues(tc *TestCase, app PrometheusQuerier, metricNameRE, labelName, tenantID string, start, end int64, want []string) {
-	tc.T().Helper()
-
-	query := fmt.Sprintf(`{__name__=~"%s"}`, metricNameRE)
-	tc.Assert(&AssertOptions{
-		Msg: "unexpected /prometheus/api/v1/labels/.../values response",
-		Got: func() any {
-			tc.T().Helper()
-			res := app.PrometheusAPIV1LabelValues(tc.T(), labelName, query, QueryOpts{
-				Tenant: tenantID,
-				Start:  fmt.Sprintf("%d", start),
-				End:    fmt.Sprintf("%d", end),
-			})
-			slices.Sort(res.Data)
-			return res
-		},
-		Want: &PrometheusAPIV1LabelValuesResponse{
-			Status: "success",
-			Data:   want,
-		},
-		FailNow: true,
-	})
-}
-
-// AssertQueryResults sends a data query to storage and compares the query
-// result with the expected one.
-func AssertQueryResults(tc *TestCase, app PrometheusQuerier, metricNameRE, tenantID string, start, end, step int64, want []*QueryResult) {
-	tc.T().Helper()
-
-	query := fmt.Sprintf(`{__name__=~"%s"}`, metricNameRE)
-	tc.Assert(&AssertOptions{
-		Msg: "unexpected /prometheus/api/v1/query_range response",
-		Got: func() any {
-			tc.T().Helper()
-			return app.PrometheusAPIV1QueryRange(tc.T(), query, QueryOpts{
-				Tenant:      tenantID,
-				Start:       fmt.Sprintf("%d", start),
-				End:         fmt.Sprintf("%d", end),
-				Step:        fmt.Sprintf("%dms", step),
-				MaxLookback: fmt.Sprintf("%dms", step-1),
-				NoCache:     "1",
-			})
-		},
-		Want: &PrometheusAPIV1QueryResponse{
-			Status: "success",
-			Data: &QueryData{
-				ResultType: "matrix",
-				Result:     want,
-			},
-		},
-		FailNow: true,
-	})
-}
-
-func AssertMetadata(tc *TestCase, app PrometheusQuerier, metricName, tenantID string, want map[string][]MetadataEntry) {
-	tc.T().Helper()
-
-	tc.Assert(&AssertOptions{
-		Msg: "unexpected /prometheus/api/v1/metadata response",
-		Got: func() any {
-			tc.T().Helper()
-			return app.PrometheusAPIV1Metadata(tc.T(), metricName, 0, QueryOpts{
-				Tenant: tenantID,
-			})
-		},
-		Want: &PrometheusAPIV1Metadata{
-			Status: "success",
-			Data:   want,
-		},
-		FailNow: true,
-	})
-}
-
-func AssertMetricNamesStats(tc *TestCase, app PrometheusQuerier, metricNameRE, tenantID string, want []MetricNamesStatsRecord) {
-	tc.T().Helper()
-
-	tc.Assert(&AssertOptions{
-		Msg: "unexpected /prometheus/api/v1/status/metric_names_stats response",
-		Got: func() any {
-			tc.T().Helper()
-			return app.PrometheusAPIV1StatusMetricNamesStats(tc.T(), "", "", metricNameRE, QueryOpts{
-				Tenant: tenantID,
-			})
-		},
-		Want: MetricNamesStatsResponse{
-			Records: want,
-		},
-		FailNow: true,
-	})
-
-}
-
-// GraphiteTestData holds the data samples in Graphite Pickle format, distance
-// between samples in milliseconds and expected responses for various Graphite
-// API endpoints.
-type GraphiteTestData struct {
-	Samples             []string
-	Step                int64
-	WantMetricsIndex    []string
-	WantMetricsFind     []GraphiteMetric
-	WantMetricsExpand   []string
-	WantRenderedTargets []GraphiteRenderedTarget
-}
-
-// GenerateGraphiteTestData generates Graphite test data.
-func GenerateGraphiteTestData(prefix string, numMetrics, start, end int64) GraphiteTestData {
-	d := GraphiteTestData{
-		Samples:             make([]string, numMetrics),
-		Step:                (end - start) / numMetrics,
-		WantMetricsIndex:    make([]string, numMetrics),
-		WantMetricsFind:     make([]GraphiteMetric, numMetrics),
-		WantMetricsExpand:   make([]string, numMetrics),
-		WantRenderedTargets: make([]GraphiteRenderedTarget, numMetrics),
-	}
-
-	datapoints := make([][2]float64, numMetrics)
-	for i := range numMetrics {
-		timestamp := (start + i*d.Step) / 1000
-		datapoints[i][1] = float64(timestamp)
-	}
-
-	for i := range numMetrics {
-		suffix := fmt.Sprintf("%04d", i)
-		metricName := fmt.Sprintf("%s.%s", prefix, suffix)
-		value := i
-		timestamp := (start + i*d.Step) / 1000
-		sample := fmt.Sprintf(`%s %d %d`, metricName, value, timestamp)
-
-		d.Samples[i] = sample
-		d.WantMetricsIndex[i] = metricName
-		d.WantMetricsFind[i].Id = metricName
-		d.WantMetricsFind[i].Text = suffix
-		d.WantMetricsFind[i].Leaf = 1
-		d.WantMetricsExpand[i] = metricName
-		d.WantRenderedTargets[i].Target = metricName
-		d.WantRenderedTargets[i].Datapoints = slices.Clone(datapoints)
-		d.WantRenderedTargets[i].Datapoints[i][0] = float64(value)
-	}
-	return d
-}
-
-// AssertGraphiteMetricsIndex retrieves all metrics by sending a request to
-// /graphite/metrics/index.json and compares the result with the expected one.
-func AssertGraphiteMetricsIndex(tc *TestCase, app PrometheusQuerier, tenantID string, want []string) {
-	tc.T().Helper()
-
-	tc.Assert(&AssertOptions{
-		Msg: "unexpected /graphite/metrics/index.json response",
-		Got: func() any {
-			tc.T().Helper()
-			return app.GraphiteMetricsIndex(tc.T(), QueryOpts{
-				Tenant: tenantID,
-			})
-		},
-		Want:    want,
-		Retries: 30,
-		FailNow: true,
-	})
-
-}
-
-// AssertGraphiteMetricsFind finds metric names by sending a request to
-// /graphite/metrics/find and compares the result with the expected one.
-func AssertGraphiteMetricsFind(tc *TestCase, app PrometheusQuerier, query, tenantID string, want []GraphiteMetric) {
-	tc.T().Helper()
-
-	tc.Assert(&AssertOptions{
-		Msg: "unexpected /graphite/metrics/find response",
-		Got: func() any {
-			tc.T().Helper()
-			return app.GraphiteMetricsFind(tc.T(), query, QueryOpts{
-				Tenant: tenantID,
-			})
-		},
-		Want:    want,
-		FailNow: true,
-	})
-
-}
-
-// AssertGraphiteMetricsFind expands metric names by sending a request to
-// /graphite/metrics/expand and compares the result with the expected one.
-func AssertGraphiteMetricsExpand(tc *TestCase, app PrometheusQuerier, query, tenantID string, want []string) {
-	tc.T().Helper()
-
-	tc.Assert(&AssertOptions{
-		Msg: "unexpected /graphite/metrics/expand response",
-		Got: func() any {
-			tc.T().Helper()
-			return app.GraphiteMetricsExpand(tc.T(), query, QueryOpts{
-				Tenant: tenantID,
-			})
-		},
-		Want:    want,
-		FailNow: true,
-	})
-
-}
-
-// AssertGraphiteRender retieves metric raw data by sending a request to
-// /graphite/render and compares the result with the expected one.
-func AssertGraphiteRender(tc *TestCase, app PrometheusQuerier, target, tenantID string, from, until, step int64, want []GraphiteRenderedTarget) {
-	tc.T().Helper()
-
-	tc.Assert(&AssertOptions{
-		Msg: "unexpected /graphite/render response",
-		Got: func() any {
-			tc.T().Helper()
-			return app.GraphiteRender(tc.T(), target, QueryOpts{
-				Tenant:      tenantID,
-				From:        fmt.Sprintf("%d", from/1000),
-				Until:       fmt.Sprintf("%d", until/1000),
-				StorageStep: fmt.Sprintf("%dms", step),
-			})
-		},
-		Want:    want,
-		FailNow: true,
-	})
-}

apptest/tests/max_backfill_age_test.go

@@ -1,222 +0,0 @@
-package tests
-
-import (
-	"fmt"
-	"path/filepath"
-	"testing"
-	"time"
-
-	"github.com/VictoriaMetrics/VictoriaMetrics/apptest"
-)
-
-func TestSingleMaxBackfillAge(t *testing.T) {
-	tc := apptest.NewTestCase(t)
-	defer tc.Stop()
-
-	opts := maxBackfillAgeOpts{
-		start: func(retentionPeriod, maxBackfillAge string) apptest.PrometheusWriteQuerier {
-			return tc.MustStartVmsingle("vmsingle", []string{
-				"-storageDataPath=" + filepath.Join(tc.Dir(), "vmsingle"),
-				"-retentionPeriod=" + retentionPeriod,
-				"-maxBackfillAge=" + maxBackfillAge,
-			})
-		},
-		stop: func() {
-			tc.StopApp("vmsingle")
-		},
-	}
-
-	testMaxBackfillAge(tc, opts)
-}
-
-func TestClusterMaxBackfillAge(t *testing.T) {
-	tc := apptest.NewTestCase(t)
-	defer tc.Stop()
-
-	opts := maxBackfillAgeOpts{
-		start: func(retentionPeriod, maxBackfillAge string) apptest.PrometheusWriteQuerier {
-			return tc.MustStartCluster(&apptest.ClusterOptions{
-				Vmstorage1Instance: "vmstorage1",
-				Vmstorage1Flags: []string{
-					"-storageDataPath=" + filepath.Join(tc.Dir(), "vmstorage1"),
-					"-retentionPeriod=" + retentionPeriod,
-					"-maxBackfillAge=" + maxBackfillAge,
-				},
-				Vmstorage2Instance: "vmstorage2",
-				Vmstorage2Flags: []string{
-					"-storageDataPath=" + filepath.Join(tc.Dir(), "vmstorage2"),
-					"-retentionPeriod=" + retentionPeriod,
-					"-maxBackfillAge=" + maxBackfillAge,
-				},
-				VminsertInstance: "vminsert",
-				VminsertFlags:    []string{},
-				VmselectInstance: "vmselect",
-				VmselectFlags:    []string{},
-			})
-		},
-		stop: func() {
-			tc.StopApp("vminsert")
-			tc.StopApp("vmselect")
-			tc.StopApp("vmstorage1")
-			tc.StopApp("vmstorage2")
-		},
-	}
-
-	testMaxBackfillAge(tc, opts)
-}
-
-type maxBackfillAgeOpts struct {
-	start func(retentionPeriod, maxBackfillAge string) apptest.PrometheusWriteQuerier
-	stop  func()
-}
-
-func testMaxBackfillAge(tc *apptest.TestCase, opts maxBackfillAgeOpts) {
-	t := tc.T()
-
-	assertSeries := func(app apptest.PrometheusQuerier, prefix string, start, end int64, want []map[string]string) {
-		t.Helper()
-
-		query := fmt.Sprintf(`{__name__=~"metric_%s.*"}`, prefix)
-		tc.Assert(&apptest.AssertOptions{
-			Msg: "unexpected /api/v1/series response",
-			Got: func() any {
-				return app.PrometheusAPIV1Series(t, query, apptest.QueryOpts{
-					Start: fmt.Sprintf("%d", start),
-					End:   fmt.Sprintf("%d", end),
-				}).Sort()
-			},
-			Want: &apptest.PrometheusAPIV1SeriesResponse{
-				Status: "success",
-				Data:   want,
-			},
-			FailNow: true,
-		})
-	}
-
-	assertQueryResults := func(app apptest.PrometheusQuerier, prefix string, start, end, step int64, want []*apptest.QueryResult) {
-		t.Helper()
-
-		query := fmt.Sprintf(`{__name__=~"metric_%s.*"}`, prefix)
-		tc.Assert(&apptest.AssertOptions{
-			Msg: "unexpected /api/v1/query_range response",
-			Got: func() any {
-				return app.PrometheusAPIV1QueryRange(t, query, apptest.QueryOpts{
-					Start:       fmt.Sprintf("%d", start),
-					End:         fmt.Sprintf("%d", end),
-					Step:        fmt.Sprintf("%dms", step),
-					MaxLookback: fmt.Sprintf("%dms", step-1),
-					NoCache:     "1",
-				})
-			},
-			Want: &apptest.PrometheusAPIV1QueryResponse{
-				Status: "success",
-				Data: &apptest.QueryData{
-					ResultType: "matrix",
-					Result:     want,
-				},
-			},
-			FailNow: true,
-		})
-	}
-
-	const numMetrics = 1000
-	now := time.Now().UTC()
-	var start, end, step int64
-	emptySeries := []map[string]string{}
-	emptyQueryResults := []*apptest.QueryResult{}
-
-	// Start sut with the same -retentionPeriod and -maxBackfillAge.
-	sut := opts.start("1y", "1y")
-
-	// Verify that samples older than the retention period are rejected.
-	start = now.Add(-365 * 24 * time.Hour).Add(-time.Hour).UnixMilli()
-	end = now.Add(-365 * 24 * time.Hour).UnixMilli()
-	step = (end - start) / numMetrics
-	outsideRetention := genMaxBackfillAgeData("outside_retention", numMetrics, start, step)
-	sut.PrometheusAPIV1ImportPrometheus(t, outsideRetention.samples, apptest.QueryOpts{})
-	sut.ForceFlush(t)
-	assertSeries(sut, "outside_retention", start, end, emptySeries)
-	assertQueryResults(sut, "outside_retention", start, end, step, emptyQueryResults)
-
-	// Verify that samples within the retention period are accepted and
-	// searcheable.
-	start = now.Add(-365 * 24 * time.Hour).Add(time.Hour).UnixMilli()
-	end = now.Add(-365 * 24 * time.Hour).Add(2 * time.Hour).UnixMilli()
-	step = (end - start) / numMetrics
-	insideRetention := genMaxBackfillAgeData("inside_retention", numMetrics, start, step)
-	sut.PrometheusAPIV1ImportPrometheus(t, insideRetention.samples, apptest.QueryOpts{})
-	sut.ForceFlush(t)
-	assertSeries(sut, "inside_retention", start, end, insideRetention.wantSeries)
-	assertQueryResults(sut, "inside_retention", start, end, step, insideRetention.wantQueryResults)
-
-	// Restart sut with -maxBackfillAge shorter than the -retentionPeriod.
-	opts.stop()
-	sut = opts.start("1y", "6M")
-
-	// Verify that new samples older than max backfill age but still within the
-	// retention period are rejected but existing samples are still searcheable.
-	start = now.Add(-365 * 24 * time.Hour).Add(time.Hour).UnixMilli()
-	end = now.Add(-365 * 24 * time.Hour).Add(2 * time.Hour).UnixMilli()
-	step = (end - start) / numMetrics
-	insideRetention2 := genMaxBackfillAgeData("inside_retention2", numMetrics, start, step)
-	sut.PrometheusAPIV1ImportPrometheus(t, insideRetention2.samples, apptest.QueryOpts{})
-	sut.ForceFlush(t)
-	assertSeries(sut, "inside_retention2", start, end, emptySeries)
-	assertQueryResults(sut, "inside_retention2", start, end, step, emptyQueryResults)
-	assertSeries(sut, "inside_retention", start, end, insideRetention.wantSeries)
-	assertQueryResults(sut, "inside_retention", start, end, step, insideRetention.wantQueryResults)
-
-	// Verify that the metrics that are outside the backfill window can still
-	// be deleted.
-	sut.PrometheusAPIV1AdminTSDBDeleteSeries(t, `{__name__=~".*inside_retention.*"}`, apptest.QueryOpts{})
-	sut.ForceFlush(t)
-	assertSeries(sut, "inside_retention", start, end, emptySeries)
-	assertQueryResults(sut, "inside_retention", start, end, step, emptyQueryResults)
-
-	// Verify that the samples that are within the backfill window are accepted
-	// and searchable.
-	start = now.Add(-180 * 24 * time.Hour).UnixMilli()
-	end = now.Add(-180 * 24 * time.Hour).Add(1 * time.Hour).UnixMilli()
-	step = (end - start) / numMetrics
-	insideMaxBackfillAge := genMaxBackfillAgeData("inside_max_backfill_age", numMetrics, start, step)
-	sut.PrometheusAPIV1ImportPrometheus(t, insideMaxBackfillAge.samples, apptest.QueryOpts{})
-	sut.ForceFlush(t)
-	assertSeries(sut, "inside_max_backfill_age", start, end, insideMaxBackfillAge.wantSeries)
-	assertQueryResults(sut, "inside_max_backfill_age", start, end, step, insideMaxBackfillAge.wantQueryResults)
-
-	opts.stop()
-}
-
-type maxBackfillAgeData struct {
-	samples          []string
-	wantSeries       []map[string]string
-	wantQueryResults []*apptest.QueryResult
-}
-
-func genMaxBackfillAgeData(prefix string, numMetrics, start, step int64) maxBackfillAgeData {
-	samples := make([]string, numMetrics)
-	wantSeries := make([]map[string]string, numMetrics)
-	wantQueryResults := make([]*apptest.QueryResult, numMetrics)
-	for i := range numMetrics {
-		metricName := fmt.Sprintf("metric_%s_%04d", prefix, i)
-		labelName := fmt.Sprintf("label_%s_%04d", prefix, i)
-		labelValue := fmt.Sprintf("value_%s_%04d", prefix, i)
-		value := i
-		timestamp := start + i*step
-		samples[i] = fmt.Sprintf(`%s{%s="value", label="%s"} %d %d`, metricName, labelName, labelValue, value, timestamp)
-		wantSeries[i] = map[string]string{
-			"__name__": metricName,
-			labelName:  "value",
-			"label":    labelValue,
-		}
-		wantQueryResults[i] = &apptest.QueryResult{
-			Metric: map[string]string{
-				"__name__": metricName,
-				labelName:  "value",
-				"label":    labelValue,
-			},
-			Samples: []*apptest.Sample{{Timestamp: timestamp, Value: float64(value)}},
-		}
-	}
-	return maxBackfillAgeData{samples, wantSeries, wantQueryResults}
-}

apptest/tests/metricsmetadata_test.go

@@ -2,7 +2,6 @@ package tests
 
 import (
 	"fmt"
-	"math"
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
@@ -26,11 +25,7 @@ func TestSingleMetricsMetadata(t *testing.T) {
 	if len(resp.Data) != 0 {
 		t.Fatalf("unexpected resp Records: %d, want: %d", len(resp.Data), 0)
 	}
-	generateValueExceedLimit := func(prefix string) string {
-		buf := make([]byte, math.MaxUint16+len(prefix))
-		copy(buf, prefix)
-		return string(buf)
-	}
+
 	const ingestTimestamp = 1707123456700
 	prometheusTextDataSet := []string{
 		`# HELP metric_name_1 some help message`,
@@ -45,12 +40,6 @@ func TestSingleMetricsMetadata(t *testing.T) {
 		`# TYPE metric_name_3 gauge`,
 		`metric_name_3{label="baz"} 30`,
 	}
-	prometheusTextDataSet = append(prometheusTextDataSet,
-		`# HELP metric_name_4 `+generateValueExceedLimit("large help"),
-		`# TYPE metric_name_4 gauge`,
-		`metric_name_4{label="baz"} 30`,
-	)
-
 	prometheusRemoteWriteDataSet := prompb.WriteRequest{
 		Timeseries: []prompb.TimeSeries{
 			{Labels: []prompb.Label{{Name: "__name__", Value: "metric_name_4"}}, Samples: []prompb.Sample{{Value: 40, Timestamp: ingestTimestamp}}},
@@ -63,9 +52,6 @@ func TestSingleMetricsMetadata(t *testing.T) {
 			{MetricFamilyName: "metric_name_5", Help: "some help message", Type: prompb.MetricTypeSummary},
 			{MetricFamilyName: "metric_name_6", Help: "some help message", Type: prompb.MetricTypeStateset},
 			{MetricFamilyName: `metric_name_7_!@"_suffix`, Help: "some help message", Type: prompb.MetricTypeStateset},
-			{MetricFamilyName: "metric_name_8", Help: generateValueExceedLimit("large_help"), Type: prompb.MetricTypeStateset},
-			{MetricFamilyName: "metric_name_9", Help: "some help message", Type: prompb.MetricTypeStateset, Unit: generateValueExceedLimit("large_unit")},
-			{MetricFamilyName: generateValueExceedLimit("metric_name_10"), Help: "some help message", Type: prompb.MetricTypeStateset},
 		},
 	}
 
@@ -151,11 +137,6 @@ func TestClusterMetricsMetadata(t *testing.T) {
 	if len(resp.Data) != 0 {
 		t.Fatalf("unexpected resp Records: %d, want: %d", len(resp.Data), 0)
 	}
-	generateValueExceedLimit := func(prefix string) string {
-		buf := make([]byte, math.MaxUint16+len(prefix))
-		copy(buf, prefix)
-		return string(buf)
-	}
 
 	const ingestTimestamp = 1707123456700
 	prometheusTextDataSet := []string{
@@ -171,11 +152,6 @@ func TestClusterMetricsMetadata(t *testing.T) {
 		`# TYPE metric_name_3 gauge`,
 		`metric_name_3{label="baz"} 30`,
 	}
-	prometheusTextDataSet = append(prometheusTextDataSet,
-		`# HELP metric_name_4 `+generateValueExceedLimit("large help"),
-		`# TYPE metric_name_4 gauge`,
-		`metric_name_4{label="baz"} 30`,
-	)
 	prometheusRemoteWriteDataSet := prompb.WriteRequest{
 		Timeseries: []prompb.TimeSeries{
 			{Labels: []prompb.Label{{Name: "__name__", Value: "metric_name_4"}}, Samples: []prompb.Sample{{Value: 40, Timestamp: ingestTimestamp}}},
@@ -188,9 +164,6 @@ func TestClusterMetricsMetadata(t *testing.T) {
 			{MetricFamilyName: "metric_name_5", Help: "some help message", Type: prompb.MetricTypeSummary},
 			{MetricFamilyName: "metric_name_6", Help: "some help message", Type: prompb.MetricTypeStateset},
 			{MetricFamilyName: `metric_name_7_!@"_suffix`, Help: "some help message", Type: prompb.MetricTypeStateset},
-			{MetricFamilyName: "metric_name_8", Help: generateValueExceedLimit("large_help"), Type: prompb.MetricTypeStateset},
-			{MetricFamilyName: "metric_name_9", Help: "some help message", Type: prompb.MetricTypeStateset, Unit: generateValueExceedLimit("large_unit")},
-			{MetricFamilyName: generateValueExceedLimit("metric_name_10"), Help: "some help message", Type: prompb.MetricTypeStateset},
 		},
 	}
 

apptest/tests/vmagent_remotewrite_test.go

@@ -517,15 +517,10 @@ func TestClusterVMAgentForwardMetricsMetadata(t *testing.T) {
 		"-remoteWrite.tmpDataPath=" + tc.Dir() + "/vmagent",
 		fmt.Sprintf(`-remoteWrite.url=http://%s/insert/multitenant/prometheus/api/v1/write`, sut.Vminsert.HTTPAddr()),
 	})
-	generateValueExceedLimit := func(prefix string) string {
-		buf := make([]byte, math.MaxUint16+len(prefix))
-		copy(buf, prefix)
-		return string(buf)
-	}
+
 	prometheusRemoteWriteDataSet := prompb.WriteRequest{
 		Metadata: []prompb.MetricMetadata{
 			{MetricFamilyName: "metric_name_4", Help: "some help message", Type: prompb.MetricTypeSummary, AccountID: 100},
-			{MetricFamilyName: "metric_name_8", Help: generateValueExceedLimit("large_help"), Type: prompb.MetricTypeStateset, AccountID: 100},
 		},
 	}
 	vmagent.PrometheusAPIV1Write(t, prometheusRemoteWriteDataSet, apptest.QueryOpts{Tenant: "multitenant"})

apptest/tests/vmsingle_vmselect_rpc_test.go

@@ -1,216 +0,0 @@
-package tests
-
-import (
-	"fmt"
-	"path/filepath"
-	"slices"
-	"strconv"
-	"testing"
-	"time"
-
-	"github.com/VictoriaMetrics/VictoriaMetrics/apptest"
-	"github.com/google/go-cmp/cmp"
-)
-
-func TestMixedPrometheusQueries(t *testing.T) {
-	tc := apptest.NewTestCase(t)
-	defer tc.Stop()
-
-	const (
-		accountID1 = 12
-		projectID1 = 34
-		accountID2 = 56
-		projectID2 = 78
-		numMetrics = 10
-	)
-	tenantID1 := fmt.Sprintf("%d:%d", accountID1, projectID1)
-	tenantID2 := fmt.Sprintf("%d:%d", accountID2, projectID2)
-	start := time.Date(2026, 1, 1, 0, 0, 0, 0, time.UTC).UnixMilli()
-	end := time.Date(2026, 1, 2, 0, 0, 0, 0, time.UTC).UnixMilli()
-	data := apptest.GenerateTestData("metric", numMetrics, start, end)
-	emptySeries := []map[string]string{}
-	emptyLabels := []string{}
-	emptyLabelValues := []string{}
-	emptyQueryResults := []*apptest.QueryResult{}
-	emptyMetadata := map[string][]apptest.MetadataEntry{}
-	emptyMetricNamesStats := []apptest.MetricNamesStatsRecord{}
-
-	vmsingle := tc.MustStartVmsingle("vmsingle", []string{
-		"-storageDataPath=" + filepath.Join(tc.Dir(), "vmsingle"),
-		"-retentionPeriod=100y",
-		fmt.Sprintf("-accountID=%d", accountID1),
-		fmt.Sprintf("-projectID=%d", projectID1),
-	})
-	vmselect := tc.MustStartVmselect("vmselect", []string{
-		"-storageNode=" + vmsingle.VmselectAddr(),
-	})
-
-	vmsingle.PrometheusAPIV1ImportPrometheus(tc.T(), data.Samples, apptest.QueryOpts{})
-	vmsingle.ForceFlush(t)
-
-	// Ensure vmsingle returns data.
-	apptest.AssertSeries(tc, vmsingle, "metric.*", "", start, end, data.WantSeries)
-	apptest.AssertSeriesCount(tc, vmsingle, "", start, end, numMetrics)
-	apptest.AssertLabels(tc, vmsingle, "metric.*", "", start, end, data.WantLabels)
-	apptest.AssertLabelValues(tc, vmsingle, "metric.*", "label", "", start, end, data.WantLabelValues)
-	apptest.AssertQueryResults(tc, vmsingle, "metric.*", "", start, end, data.Step, data.WantQueryResults)
-	apptest.AssertMetadata(tc, vmsingle, "", "", data.WantMetadata)
-	for i := range data.WantMetricNamesStats {
-		data.WantMetricNamesStats[i].QueryRequestsCount = 1
-	}
-	apptest.AssertMetricNamesStats(tc, vmsingle, "", "", data.WantMetricNamesStats)
-
-	// Check that current vmsingle tenant (configured via flags) is tenant1.
-	gotAdminTenantsResponse := vmselect.APIV1AdminTenants(t, apptest.QueryOpts{})
-	wantAdminTenantsResponse := &apptest.AdminTenantsResponse{
-		Status: "success",
-		Data:   []string{tenantID1},
-	}
-	if diff := cmp.Diff(wantAdminTenantsResponse, gotAdminTenantsResponse); diff != "" {
-		t.Fatalf("unexpected tenants (-want, +got):\n%s", diff)
-	}
-
-	// Ensure vmselect returns data for tenant1.
-	apptest.AssertSeries(tc, vmselect, "metric.*", tenantID1, start, end, data.WantSeries)
-	apptest.AssertSeriesCount(tc, vmselect, tenantID1, start, end, numMetrics)
-	apptest.AssertLabels(tc, vmselect, "metric.*", tenantID1, start, end, data.WantLabels)
-	apptest.AssertLabelValues(tc, vmselect, "metric.*", "label", tenantID1, start, end, data.WantLabelValues)
-	apptest.AssertQueryResults(tc, vmselect, "metric.*", tenantID1, start, end, data.Step, data.WantQueryResults)
-	apptest.AssertMetadata(tc, vmselect, "", tenantID1, data.WantMetadata)
-	for i := range data.WantMetricNamesStats {
-		data.WantMetricNamesStats[i].QueryRequestsCount = 2
-	}
-	apptest.AssertMetricNamesStats(tc, vmselect, "", tenantID1, data.WantMetricNamesStats)
-
-	// Ensure vmselect does not return any data for tenant2.
-	apptest.AssertSeries(tc, vmselect, "metric.*", tenantID2, start, end, emptySeries)
-	apptest.AssertSeriesCount(tc, vmselect, tenantID2, start, end, 0)
-	apptest.AssertLabels(tc, vmselect, "metric.*", tenantID2, start, end, emptyLabels)
-	apptest.AssertLabelValues(tc, vmselect, "metric.*", "label", tenantID2, start, end, emptyLabelValues)
-	apptest.AssertQueryResults(tc, vmselect, "metric.*", tenantID2, start, end, data.Step, emptyQueryResults)
-	apptest.AssertMetadata(tc, vmselect, "", tenantID2, emptyMetadata)
-	apptest.AssertMetricNamesStats(tc, vmselect, "", tenantID2, emptyMetricNamesStats)
-
-	// Ensure vmselect returns data for multitenant.
-	for _, v := range data.WantSeries {
-		v["vm_account_id"] = strconv.Itoa(accountID1)
-		v["vm_project_id"] = strconv.Itoa(projectID1)
-	}
-	apptest.AssertSeries(tc, vmselect, "metric.*", "multitenant", start, end, data.WantSeries)
-	data.WantLabels = append(data.WantLabels, "vm_account_id", "vm_project_id")
-	apptest.AssertLabels(tc, vmselect, "metric.*", "multitenant", start, end, data.WantLabels)
-	apptest.AssertLabelValues(tc, vmselect, "metric.*", "label", "multitenant", start, end, data.WantLabelValues)
-	for _, v := range data.WantQueryResults {
-		v.Metric["vm_account_id"] = strconv.Itoa(accountID1)
-		v.Metric["vm_project_id"] = strconv.Itoa(projectID1)
-	}
-	apptest.AssertQueryResults(tc, vmselect, "metric.*", "multitenant", start, end, data.Step, data.WantQueryResults)
-	apptest.AssertMetadata(tc, vmselect, "", "multitenant", data.WantMetadata)
-	for i := range data.WantMetricNamesStats {
-		data.WantMetricNamesStats[i].QueryRequestsCount = 3
-	}
-	apptest.AssertMetricNamesStats(tc, vmselect, "", "multitenant", data.WantMetricNamesStats)
-}
-
-func TestMixedDeleteSeries(t *testing.T) {
-	tc := apptest.NewTestCase(t)
-	defer tc.Stop()
-
-	const (
-		accountID1 = 12
-		projectID1 = 34
-		accountID2 = 56
-		projectID2 = 78
-		numMetrics = 10
-	)
-	tenantID1 := fmt.Sprintf("%d:%d", accountID1, projectID1)
-	tenantID2 := fmt.Sprintf("%d:%d", accountID2, projectID2)
-	start := time.Date(2026, 1, 1, 0, 0, 0, 0, time.UTC).UnixMilli()
-	end := time.Date(2026, 1, 2, 0, 0, 0, 0, time.UTC).UnixMilli()
-	data1 := apptest.GenerateTestData("metric1", numMetrics, start, end)
-	data2 := apptest.GenerateTestData("metric2", numMetrics, start, end)
-	emptySeries := []map[string]string{}
-
-	vmsingle := tc.MustStartVmsingle("vmsingle", []string{
-		"-storageDataPath=" + filepath.Join(tc.Dir(), "vmsingle"),
-		"-retentionPeriod=100y",
-		fmt.Sprintf("-accountID=%d", accountID1),
-		fmt.Sprintf("-projectID=%d", projectID1),
-	})
-	vmselect := tc.MustStartVmselect("vmselect", []string{
-		"-storageNode=" + vmsingle.VmselectAddr(),
-	})
-
-	vmsingle.PrometheusAPIV1ImportPrometheus(tc.T(), data1.Samples, apptest.QueryOpts{})
-	vmsingle.PrometheusAPIV1ImportPrometheus(tc.T(), data2.Samples, apptest.QueryOpts{})
-	vmsingle.ForceFlush(t)
-
-	wantSeries12 := slices.Concat(data1.WantSeries, data2.WantSeries)
-	apptest.AssertSeries(tc, vmsingle, "metric.*", "", start, end, wantSeries12)
-
-	vmselect.PrometheusAPIV1AdminTSDBDeleteSeries(tc.T(), `{__name__=~"metric1.*"}`, apptest.QueryOpts{
-		Tenant: tenantID1,
-	})
-	apptest.AssertSeries(tc, vmsingle, "metric.*", "", start, end, data2.WantSeries)
-	vmselect.PrometheusAPIV1AdminTSDBDeleteSeries(tc.T(), `{__name__=~"metric2.*"}`, apptest.QueryOpts{
-		Tenant: tenantID2,
-	})
-	apptest.AssertSeries(tc, vmsingle, "metric.*", "", start, end, data2.WantSeries)
-	vmselect.PrometheusAPIV1AdminTSDBDeleteSeries(tc.T(), `{__name__=~"metric2.*"}`, apptest.QueryOpts{
-		Tenant: "multitenant",
-	})
-	apptest.AssertSeries(tc, vmsingle, "metric.*", "", start, end, emptySeries)
-}
-
-func TestMixedGraphiteQueries(t *testing.T) {
-	tc := apptest.NewTestCase(t)
-	defer tc.Stop()
-
-	const (
-		accountID1 = 12
-		projectID1 = 34
-		accountID2 = 56
-		projectID2 = 78
-		numMetrics = 10
-	)
-	tenantID1 := fmt.Sprintf("%d:%d", accountID1, projectID1)
-	tenantID2 := fmt.Sprintf("%d:%d", accountID2, projectID2)
-	start := time.Date(2026, 1, 1, 0, 0, 0, 0, time.UTC).UnixMilli()
-	end := time.Date(2026, 1, 2, 0, 0, 0, 0, time.UTC).UnixMilli()
-	data := apptest.GenerateGraphiteTestData("metric", numMetrics, start, end)
-	emptyMetricsIndex := []string{}
-	emptyMetricsFind := []apptest.GraphiteMetric{}
-	emptyMetricsExpand := []string{}
-	emptyRenderedTargets := []apptest.GraphiteRenderedTarget{}
-
-	vmsingle := tc.MustStartVmsingle("vmsingle", []string{
-		"-storageDataPath=" + filepath.Join(tc.Dir(), "vmsingle"),
-		"-retentionPeriod=100y",
-		fmt.Sprintf("-accountID=%d", accountID1),
-		fmt.Sprintf("-projectID=%d", projectID1),
-	})
-	vmselect := tc.MustStartVmselect("vmselect", []string{
-		"-storageNode=" + vmsingle.VmselectAddr(),
-	})
-
-	vmsingle.GraphiteWrite(tc.T(), data.Samples, apptest.QueryOpts{})
-	vmsingle.ForceFlush(t)
-
-	// Ensure vmsingle returns data.
-	apptest.AssertGraphiteMetricsIndex(tc, vmsingle, "", data.WantMetricsIndex)
-	apptest.AssertGraphiteMetricsFind(tc, vmsingle, "metric.*", "", data.WantMetricsFind)
-	apptest.AssertGraphiteMetricsExpand(tc, vmsingle, "metric.*", "", data.WantMetricsExpand)
-	apptest.AssertGraphiteRender(tc, vmsingle, "metric.*", "", start, end, data.Step, data.WantRenderedTargets)
-
-	// Ensure vmselect returns data for tenant1.
-	apptest.AssertGraphiteMetricsIndex(tc, vmselect, tenantID1, data.WantMetricsIndex)
-	apptest.AssertGraphiteMetricsFind(tc, vmselect, "metric.*", tenantID1, data.WantMetricsFind)
-	apptest.AssertGraphiteMetricsExpand(tc, vmselect, "metric.*", tenantID1, data.WantMetricsExpand)
-	apptest.AssertGraphiteRender(tc, vmselect, "metric.*", tenantID1, start, end, data.Step, data.WantRenderedTargets)
-
-	// Ensure vmselect does not return any data for tenant2.
-	apptest.AssertGraphiteMetricsIndex(tc, vmselect, tenantID2, emptyMetricsIndex)
-	apptest.AssertGraphiteMetricsFind(tc, vmselect, "metric.*", tenantID2, emptyMetricsFind)
-	apptest.AssertGraphiteMetricsExpand(tc, vmselect, "metric.*", tenantID2, emptyMetricsExpand)
-	apptest.AssertGraphiteRender(tc, vmselect, "metric.*", tenantID2, start, end, data.Step, emptyRenderedTargets)
-}

apptest/vmsingle.go

@@ -25,14 +25,12 @@ func StartVmsingle(instance string, flags []string, cli *Client, output io.Write
 			"-httpListenAddr":     "127.0.0.1:0",
 			"-graphiteListenAddr": "127.0.0.1:0",
 			"-opentsdbListenAddr": "127.0.0.1:0",
-			"-vmselectAddr":       "127.0.0.1:0",
 		},
 		extractREs: []*regexp.Regexp{
 			storageDataPathRE,
 			httpListenAddrRE,
 			graphiteListenAddrRE,
 			openTSDBListenAddrRE,
-			vmselectAddrRE,
 		},
 		output: output,
 	})
@@ -45,7 +43,6 @@ func StartVmsingle(instance string, flags []string, cli *Client, output io.Write
 		httpListenAddr:     stderrExtracts[1],
 		graphiteListenAddr: stderrExtracts[2],
 		openTSDBListenAddr: stderrExtracts[3],
-		vmselectAddr:       stderrExtracts[4],
 	}), nil
 }
 
@@ -54,7 +51,6 @@ type vmsingleRuntimeValues struct {
 	httpListenAddr     string
 	graphiteListenAddr string
 	openTSDBListenAddr string
-	vmselectAddr       string
 }
 
 func newVmsingle(app *app, cli *Client, rt vmsingleRuntimeValues) *Vmsingle {
@@ -89,7 +85,6 @@ func newVmsingle(app *app, cli *Client, rt vmsingleRuntimeValues) *Vmsingle {
 		},
 		storageDataPath: rt.storageDataPath,
 		httpListenAddr:  rt.httpListenAddr,
-		vmselectAddr:    rt.vmselectAddr,
 	}
 }
 
@@ -104,7 +99,6 @@ type Vmsingle struct {
 
 	storageDataPath string
 	httpListenAddr  string
-	vmselectAddr    string
 }
 
 // HTTPAddr returns the address at which the vminsert process is
@@ -113,12 +107,6 @@ func (app *Vmsingle) HTTPAddr() string {
 	return app.httpListenAddr
 }
 
-// VmselectAddr returns the address at which the vmsingle process is listening
-// for vmselect connections.
-func (app *Vmsingle) VmselectAddr() string {
-	return app.vmselectAddr
-}
-
 // String returns the string representation of the vmsingle app state.
 func (app *Vmsingle) String() string {
 	return fmt.Sprintf("{app: %s storageDataPath: %q httpListenAddr: %q}", []any{

dashboards/query-stats.json

@@ -1,59 +1,4 @@
 {
-  "__inputs": [
-    {
-      "name": "DS_VICTORIALOGS",
-      "label": "VictoriaLogs",
-      "description": "",
-      "type": "datasource",
-      "pluginId": "victoriametrics-logs-datasource",
-      "pluginName": "VictoriaLogs"
-    }
-  ],
-  "__elements": {},
-  "__requires": [
-    {
-      "type": "grafana",
-      "id": "grafana",
-      "name": "Grafana",
-      "version": "12.4.3"
-    },
-    {
-      "type": "panel",
-      "id": "logs",
-      "name": "Logs",
-      "version": ""
-    },
-    {
-      "type": "panel",
-      "id": "stat",
-      "name": "Stat",
-      "version": ""
-    },
-    {
-      "type": "panel",
-      "id": "table",
-      "name": "Table",
-      "version": ""
-    },
-    {
-      "type": "panel",
-      "id": "text",
-      "name": "Text",
-      "version": ""
-    },
-    {
-      "type": "panel",
-      "id": "timeseries",
-      "name": "Time series",
-      "version": ""
-    },
-    {
-      "type": "datasource",
-      "id": "victoriametrics-logs-datasource",
-      "name": "VictoriaLogs",
-      "version": "0.29.0"
-    }
-  ],
   "annotations": {
     "list": [
       {
@@ -73,6 +18,7 @@
   "editable": true,
   "fiscalYearStartMonth": 0,
   "graphTooltip": 0,
+  "id": 861,
   "links": [
     {
       "icon": "doc",
@@ -132,8 +78,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               }
             ]
           }
@@ -164,7 +109,7 @@
         "textMode": "auto",
         "wideLayout": true
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -172,7 +117,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash\n| type:=\"instant\"\n| count()",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash)\n| type:=\"instant\"\n| count()",
           "queryType": "stats",
           "refId": "A"
         }
@@ -195,8 +140,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               }
             ]
           }
@@ -227,7 +171,7 @@
         "textMode": "auto",
         "wideLayout": true
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -235,7 +179,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash \n| type:=\"range\"\n| count()",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash) \n| type:=\"range\"\n| count()",
           "queryType": "stats",
           "refId": "A"
         }
@@ -258,8 +202,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               }
             ]
           }
@@ -290,7 +233,7 @@
         "textMode": "auto",
         "wideLayout": true
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -298,7 +241,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash \n| series_fetched:=0\n| count()",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash) \n| series_fetched:=0\n| count()",
           "queryType": "stats",
           "refId": "A"
         }
@@ -322,8 +265,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               }
             ]
           },
@@ -355,7 +297,7 @@
         "textMode": "auto",
         "wideLayout": true
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -363,7 +305,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash \n| stats min(start_ms)\n",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash) \n| stats min(start_ms)\n",
           "queryType": "stats",
           "refId": "A"
         }
@@ -385,6 +327,10 @@
       "type": "row"
     },
     {
+      "fieldConfig": {
+        "defaults": {},
+        "overrides": []
+      },
       "gridPos": {
         "h": 2,
         "w": 24,
@@ -401,7 +347,8 @@
         "content": "To filter by specific query copy its hash from the table and put it into `query_hash` filter on the top. To disable filtering enter `*`.",
         "mode": "markdown"
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
+      "title": "",
       "transparent": true,
       "type": "text"
     },
@@ -420,9 +367,6 @@
             "cellOptions": {
               "type": "auto"
             },
-            "footer": {
-              "reducers": []
-            },
             "inspect": false
           },
           "mappings": [],
@@ -430,8 +374,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               },
               {
                 "color": "red",
@@ -480,6 +423,18 @@
                 "value": 204
               }
             ]
+          },
+          {
+            "matcher": {
+              "id": "byName",
+              "options": "duration_max"
+            },
+            "properties": [
+              {
+                "id": "custom.width",
+                "value": 122
+              }
+            ]
           }
         ]
       },
@@ -492,10 +447,18 @@
       "id": 4,
       "options": {
         "cellHeight": "sm",
+        "footer": {
+          "countRows": false,
+          "fields": "",
+          "reducer": [
+            "sum"
+          ],
+          "show": false
+        },
         "showHeader": true,
         "sortBy": []
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -503,7 +466,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash\n| stats by(tenant,query,query_hash) max(execution_duration_ms) duration_max \n| sort by(duration_max) desc | limit $top",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash)\n| stats by(tenant,query,query_hash) max(execution_duration_ms) duration_max \n| sort by(duration_max) desc | limit $top",
           "queryType": "instant",
           "refId": "A"
         }
@@ -515,7 +478,7 @@
           "options": {
             "delimiter": ",",
             "replace": true,
-            "source": "labels"
+            "source": "Line"
           }
         },
         {
@@ -570,7 +533,6 @@
               "type": "linear"
             },
             "showPoints": "auto",
-            "showValues": false,
             "spanNulls": false,
             "stacking": {
               "group": "A",
@@ -585,8 +547,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               },
               {
                 "color": "red",
@@ -619,7 +580,7 @@
           "sort": "none"
         }
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -627,7 +588,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash\n| stats max(execution_duration_ms) execution_duration_max",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash)\n| stats max(execution_duration_ms) execution_duration_max",
           "queryType": "statsRange",
           "refId": "A"
         }
@@ -650,9 +611,6 @@
             "cellOptions": {
               "type": "auto"
             },
-            "footer": {
-              "reducers": []
-            },
             "inspect": false
           },
           "mappings": [],
@@ -660,8 +618,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               },
               {
                 "color": "red",
@@ -723,10 +680,18 @@
       "interval": "1m",
       "options": {
         "cellHeight": "sm",
+        "footer": {
+          "countRows": false,
+          "fields": "",
+          "reducer": [
+            "sum"
+          ],
+          "show": false
+        },
         "showHeader": true,
         "sortBy": []
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -734,7 +699,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash\n| stats by(tenant,query,query_hash) max(series_fetched) series_fetched_max\n| sort by(series_fetched_max) desc | limit $top",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash)\n| stats by(tenant,query,query_hash) max(series_fetched) series_fetched_max\n| sort by(series_fetched_max) desc | limit $top",
           "queryType": "instant",
           "refId": "A"
         }
@@ -746,7 +711,7 @@
           "options": {
             "delimiter": ",",
             "replace": true,
-            "source": "labels"
+            "source": "Line"
           }
         },
         {
@@ -801,7 +766,6 @@
               "type": "linear"
             },
             "showPoints": "auto",
-            "showValues": false,
             "spanNulls": false,
             "stacking": {
               "group": "A",
@@ -816,8 +780,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               },
               {
                 "color": "red",
@@ -850,7 +813,7 @@
           "sort": "none"
         }
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -858,7 +821,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash\n| stats max(series_fetched) series_fetched_max",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash)\n| stats max(series_fetched) series_fetched_max",
           "queryType": "statsRange",
           "refId": "A"
         }
@@ -881,9 +844,6 @@
             "cellOptions": {
               "type": "auto"
             },
-            "footer": {
-              "reducers": []
-            },
             "inspect": false
           },
           "mappings": [],
@@ -891,8 +851,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               },
               {
                 "color": "red",
@@ -953,10 +912,18 @@
       "id": 5,
       "options": {
         "cellHeight": "sm",
+        "footer": {
+          "countRows": false,
+          "fields": "",
+          "reducer": [
+            "sum"
+          ],
+          "show": false
+        },
         "showHeader": true,
         "sortBy": []
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -964,7 +931,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash\n| stats by(tenant,query,query_hash) max(samples_fetched) samples_fetched_max\n| sort by(samples_fetched_max) desc | limit $top",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash)\n| stats by(tenant,query,query_hash) max(samples_fetched) samples_fetched_max\n| sort by(samples_fetched_max) desc | limit $top",
           "queryType": "instant",
           "refId": "A"
         }
@@ -975,10 +942,8 @@
           "id": "extractFields",
           "options": {
             "delimiter": ",",
-            "format": "json",
-            "keepTime": false,
             "replace": true,
-            "source": "labels"
+            "source": "Line"
           }
         },
         {
@@ -1033,7 +998,6 @@
               "type": "linear"
             },
             "showPoints": "auto",
-            "showValues": false,
             "spanNulls": false,
             "stacking": {
               "group": "A",
@@ -1048,8 +1012,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               },
               {
                 "color": "red",
@@ -1082,7 +1045,7 @@
           "sort": "none"
         }
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -1090,7 +1053,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash\n| stats max(samples_fetched) samples_fetched_max",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash)\n| stats max(samples_fetched) samples_fetched_max",
           "queryType": "statsRange",
           "refId": "A"
         }
@@ -1113,9 +1076,6 @@
             "cellOptions": {
               "type": "auto"
             },
-            "footer": {
-              "reducers": []
-            },
             "inspect": false
           },
           "mappings": [],
@@ -1123,8 +1083,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               },
               {
                 "color": "red",
@@ -1185,10 +1144,18 @@
       "id": 11,
       "options": {
         "cellHeight": "sm",
+        "footer": {
+          "countRows": false,
+          "fields": "",
+          "reducer": [
+            "sum"
+          ],
+          "show": false
+        },
         "showHeader": true,
         "sortBy": []
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -1196,7 +1163,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash\n| stats by(tenant,query,query_hash) max(bytes) bytes_fetched_max \n| sort by(bytes_fetched_max) desc | limit $top",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash)\n| stats by(tenant,query,query_hash) max(bytes) bytes_fetched_max \n| sort by(bytes_fetched_max) desc | limit $top",
           "queryType": "instant",
           "refId": "A"
         }
@@ -1208,7 +1175,7 @@
           "options": {
             "delimiter": ",",
             "replace": true,
-            "source": "labels"
+            "source": "Line"
           }
         },
         {
@@ -1263,7 +1230,6 @@
               "type": "linear"
             },
             "showPoints": "auto",
-            "showValues": false,
             "spanNulls": false,
             "stacking": {
               "group": "A",
@@ -1278,8 +1244,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               },
               {
                 "color": "red",
@@ -1312,7 +1277,7 @@
           "sort": "none"
         }
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -1320,7 +1285,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash\n| stats max(bytes) bytes_fetched",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash)\n| stats max(bytes) bytes_fetched",
           "queryType": "statsRange",
           "refId": "A"
         }
@@ -1343,9 +1308,6 @@
             "cellOptions": {
               "type": "auto"
             },
-            "footer": {
-              "reducers": []
-            },
             "inspect": false
           },
           "mappings": [],
@@ -1353,8 +1315,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               },
               {
                 "color": "red",
@@ -1427,10 +1388,18 @@
       "id": 13,
       "options": {
         "cellHeight": "sm",
+        "footer": {
+          "countRows": false,
+          "fields": "",
+          "reducer": [
+            "sum"
+          ],
+          "show": false
+        },
         "showHeader": true,
         "sortBy": []
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -1438,7 +1407,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash\n| stats by(tenant,query,query_hash) max(memory_estimated_bytes) memory_estimated_max\n| sort by(memory_estimated_max) desc | limit $top",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash)\n| stats by(tenant,query,query_hash) max(memory_estimated_bytes) memory_estimated_max\n| sort by(memory_estimated_max) desc | limit $top",
           "queryType": "instant",
           "refId": "A"
         }
@@ -1450,7 +1419,7 @@
           "options": {
             "delimiter": ",",
             "replace": true,
-            "source": "labels"
+            "source": "Line"
           }
         },
         {
@@ -1505,7 +1474,6 @@
               "type": "linear"
             },
             "showPoints": "auto",
-            "showValues": false,
             "spanNulls": false,
             "stacking": {
               "group": "A",
@@ -1520,8 +1488,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               },
               {
                 "color": "red",
@@ -1554,7 +1521,7 @@
           "sort": "none"
         }
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -1562,7 +1529,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash\n| stats max(memory_estimated_bytes) memory_estimated_bytes",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash)\n| stats max(memory_estimated_bytes) memory_estimated_bytes",
           "queryType": "statsRange",
           "refId": "A"
         }
@@ -1585,9 +1552,6 @@
             "cellOptions": {
               "type": "auto"
             },
-            "footer": {
-              "reducers": []
-            },
             "inspect": false
           },
           "mappings": [],
@@ -1595,8 +1559,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               },
               {
                 "color": "red",
@@ -1657,10 +1620,18 @@
       "id": 18,
       "options": {
         "cellHeight": "sm",
+        "footer": {
+          "countRows": false,
+          "fields": "",
+          "reducer": [
+            "sum"
+          ],
+          "show": false
+        },
         "showHeader": true,
         "sortBy": []
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -1668,7 +1639,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:$query_hash\n| stats by(tenant,query,query_hash) max(range_ms) range_max \n| sort by(range_max) desc | limit $top",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| tenant:in($tenant)\n| query_hash:in($query_hash)\n| stats by(tenant,query,query_hash) max(range_ms) range_max \n| sort by(range_max) desc | limit $top",
           "queryType": "instant",
           "refId": "A"
         }
@@ -1680,7 +1651,7 @@
           "options": {
             "delimiter": ",",
             "replace": true,
-            "source": "labels"
+            "source": "Line"
           }
         },
         {
@@ -1735,7 +1706,6 @@
               "type": "linear"
             },
             "showPoints": "auto",
-            "showValues": false,
             "spanNulls": false,
             "stacking": {
               "group": "A",
@@ -1750,8 +1720,7 @@
             "mode": "absolute",
             "steps": [
               {
-                "color": "green",
-                "value": 0
+                "color": "green"
               },
               {
                 "color": "red",
@@ -1784,7 +1753,7 @@
           "sort": "none"
         }
       },
-      "pluginVersion": "12.4.3",
+      "pluginVersion": "11.6.0",
       "targets": [
         {
           "datasource": {
@@ -1792,7 +1761,7 @@
             "uid": "${ds}"
           },
           "editorMode": "code",
-          "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| query_hash:$query_hash\n| stats max(range_ms) range_max",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| query_hash:in($query_hash)\n| stats max(range_ms) range_max",
           "queryType": "statsRange",
           "refId": "A"
         }
@@ -1801,7 +1770,7 @@
       "type": "timeseries"
     },
     {
-      "collapsed": true,
+      "collapsed": false,
       "gridPos": {
         "h": 1,
         "w": 24,
@@ -1809,59 +1778,52 @@
         "y": 56
       },
       "id": 12,
-      "panels": [
+      "panels": [],
+      "title": "Query log",
+      "type": "row"
+    },
+    {
+      "datasource": {
+        "type": "victoriametrics-logs-datasource",
+        "uid": "${ds}"
+      },
+      "fieldConfig": {
+        "defaults": {},
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 14,
+        "w": 24,
+        "x": 0,
+        "y": 57
+      },
+      "id": 6,
+      "options": {
+        "dedupStrategy": "none",
+        "enableInfiniteScrolling": false,
+        "enableLogDetails": true,
+        "prettifyLogMessage": false,
+        "showCommonLabels": false,
+        "showLabels": false,
+        "showTime": false,
+        "sortOrder": "Descending",
+        "wrapLogMessage": false
+      },
+      "pluginVersion": "11.6.0",
+      "targets": [
         {
           "datasource": {
             "type": "victoriametrics-logs-datasource",
             "uid": "${ds}"
           },
-          "fieldConfig": {
-            "defaults": {},
-            "overrides": []
-          },
-          "gridPos": {
-            "h": 14,
-            "w": 24,
-            "x": 0,
-            "y": 57
-          },
-          "id": 6,
-          "options": {
-            "dedupStrategy": "none",
-            "detailsMode": "sidebar",
-            "enableInfiniteScrolling": false,
-            "enableLogDetails": true,
-            "fontSize": "small",
-            "prettifyLogMessage": false,
-            "showCommonLabels": false,
-            "showControls": true,
-            "showLabels": false,
-            "showTime": false,
-            "sortOrder": "Descending",
-            "syntaxHighlighting": false,
-            "unwrappedColumns": false,
-            "wrapLogMessage": true
-          },
-          "pluginVersion": "12.4.3",
-          "targets": [
-            {
-              "datasource": {
-                "type": "victoriametrics-logs-datasource",
-                "uid": "${ds}"
-              },
-              "direction": "desc",
-              "editorMode": "code",
-              "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| query_hash:$query_hash\n| limit 200",
-              "queryType": "instant",
-              "refId": "A"
-            }
-          ],
-          "title": "Raw logs",
-          "type": "logs"
+          "editorMode": "code",
+          "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| query_hash:in($query_hash)\n| limit 200",
+          "queryType": "instant",
+          "refId": "A"
         }
       ],
-      "title": "Query log",
-      "type": "row"
+      "title": "Raw logs",
+      "type": "logs"
     },
     {
       "collapsed": true,
@@ -1869,7 +1831,7 @@
         "h": 1,
         "w": 24,
         "x": 0,
-        "y": 57
+        "y": 71
       },
       "id": 17,
       "panels": [
@@ -1886,7 +1848,7 @@
             "h": 14,
             "w": 24,
             "x": 0,
-            "y": 58
+            "y": 70
           },
           "id": 15,
           "options": {
@@ -1895,14 +1857,12 @@
             "enableLogDetails": true,
             "prettifyLogMessage": false,
             "showCommonLabels": false,
-            "showControls": false,
             "showLabels": false,
             "showTime": false,
             "sortOrder": "Descending",
-            "unwrappedColumns": false,
             "wrapLogMessage": false
           },
-          "pluginVersion": "12.4.3",
+          "pluginVersion": "11.6.0",
           "targets": [
             {
               "datasource": {
@@ -1910,7 +1870,7 @@
                 "uid": "${ds}"
               },
               "editorMode": "code",
-              "expr": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| series_fetched:=0\n| query_hash:$query_hash",
+              "expr": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats \n| series_fetched:=0\n| query_hash:in($query_hash)",
               "queryType": "instant",
               "refId": "A"
             }
@@ -1925,7 +1885,7 @@
   ],
   "preload": false,
   "refresh": "",
-  "schemaVersion": 42,
+  "schemaVersion": 41,
   "tags": [
     "victoriametrics",
     "victorialogs"
@@ -1934,9 +1894,8 @@
     "list": [
       {
         "current": {
-          "text": "",
-          "value": "${ds}",
-          "selected": true
+          "text": "VictoriaLogs",
+          "value": "PD775F2863313E6C7"
         },
         "name": "ds",
         "options": [],
@@ -1974,17 +1933,21 @@
           }
         ],
         "query": "5,10,15,20",
-        "type": "custom",
-        "valuesFormat": "csv"
+        "type": "custom"
       },
       {
         "allValue": "*",
-        "current": {},
+        "current": {
+          "text": "All",
+          "value": [
+            "$__all"
+          ]
+        },
         "datasource": {
           "type": "victoriametrics-logs-datasource",
           "uid": "${ds}"
         },
-        "definition": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats  | fields tenant",
+        "definition": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats  | fields tenant",
         "includeAll": true,
         "multi": true,
         "name": "tenant",
@@ -1992,13 +1955,12 @@
         "query": {
           "field": "tenant",
           "limit": 25,
-          "query": "\"vm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats  | fields tenant",
+          "query": "\"\\tvm_slow_query_stats\" | extract 'vm_slow_query_stats <vm_slow_query_stats>' | unpack_logfmt from vm_slow_query_stats  | fields tenant",
           "refId": "VictoriaLogsVariableQueryEditor-VariableQuery",
           "type": "fieldValue"
         },
-        "refresh": 2,
+        "refresh": 1,
         "regex": "",
-        "regexApplyTo": "value",
         "type": "query"
       },
       {
@@ -2038,6 +2000,5 @@
   "timezone": "browser",
   "title": "Query Stats (cluster)",
   "uid": "feg3od1zt1fy8e",
-  "version": 1,
-  "weekStart": ""
-}
+  "version": 1
+}

dashboards/victoriametrics.json

@@ -896,7 +896,7 @@
             "uid": "$ds"
           },
           "editorMode": "code",
-          "expr": "sum(min_over_time(up{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval])) by (job)",
+          "expr": "sum(min_over_time(vm_app_version{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval])) by (job)",
           "format": "time_series",
           "instant": false,
           "legendFormat": "{{job}}",

dashboards/vm/victoriametrics.json

@@ -897,7 +897,7 @@
             "uid": "$ds"
           },
           "editorMode": "code",
-          "expr": "sum(min_over_time(up{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval])) by (job)",
+          "expr": "sum(min_over_time(vm_app_version{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval])) by (job)",
           "format": "time_series",
           "instant": false,
           "legendFormat": "{{job}}",

dashboards/vm/vmagent.json

@@ -892,7 +892,7 @@
             "uid": "$ds"
           },
           "editorMode": "code",
-          "expr": "sum(min_over_time(up{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval])) by (job)",
+          "expr": "sum(up{job=~\"$job\", instance=~\"$instance\"}) by (job)",
           "format": "time_series",
           "instant": false,
           "interval": "",

dashboards/vmagent.json

@@ -891,7 +891,7 @@
             "uid": "$ds"
           },
           "editorMode": "code",
-          "expr": "sum(min_over_time(up{job=~\"$job\", instance=~\"$instance\"}[$__rate_interval])) by (job)",
+          "expr": "sum(up{job=~\"$job\", instance=~\"$instance\"}) by (job)",
           "format": "time_series",
           "instant": false,
           "interval": "",

deployment/docker/Makefile

@@ -7,7 +7,7 @@ ROOT_IMAGE ?= alpine:3.24.1
 ROOT_IMAGE_SCRATCH ?= scratch
 CERTS_IMAGE := alpine:3.24.1
 
-GO_BUILDER_IMAGE := golang:1.26.5
+GO_BUILDER_IMAGE := golang:1.26.4
 
 BUILDER_IMAGE := local/builder:2.0.0-$(shell echo $(GO_BUILDER_IMAGE) | tr :/ __)-1
 BASE_IMAGE := local/base:1.1.4-$(shell echo $(ROOT_IMAGE) | tr :/ __)-$(shell echo $(CERTS_IMAGE) | tr :/ __)

deployment/docker/compose-vm-cluster.yml

@@ -3,7 +3,7 @@ services:
   #  It scrapes targets defined in --promscrape.config
   #  And forward them to --remoteWrite.url
   vmagent:
-    image: victoriametrics/vmagent:v1.148.0
+    image: victoriametrics/vmagent:v1.146.0
     depends_on:
       - "vmauth"
     ports:
@@ -42,14 +42,14 @@ services:
   # vmstorage shards. Each shard receives 1/N of all metrics sent to vminserts,
   # where N is number of vmstorages (2 in this case).
   vmstorage-1:
-    image: victoriametrics/vmstorage:v1.148.0-cluster
+    image: victoriametrics/vmstorage:v1.146.0-cluster
     volumes:
       - strgdata-1:/storage
     command:
       - "--storageDataPath=/storage"
     restart: always
   vmstorage-2:
-    image: victoriametrics/vmstorage:v1.148.0-cluster
+    image: victoriametrics/vmstorage:v1.146.0-cluster
     volumes:
       - strgdata-2:/storage
     command:
@@ -59,7 +59,7 @@ services:
   # vminsert is ingestion frontend. It receives metrics pushed by vmagent,
   # pre-process them and distributes across configured vmstorage shards.
   vminsert-1:
-    image: victoriametrics/vminsert:v1.148.0-cluster
+    image: victoriametrics/vminsert:v1.146.0-cluster
     depends_on:
       - "vmstorage-1"
       - "vmstorage-2"
@@ -68,7 +68,7 @@ services:
       - "--storageNode=vmstorage-2:8400"
     restart: always
   vminsert-2:
-    image: victoriametrics/vminsert:v1.148.0-cluster
+    image: victoriametrics/vminsert:v1.146.0-cluster
     depends_on:
       - "vmstorage-1"
       - "vmstorage-2"
@@ -80,7 +80,7 @@ services:
   # vmselect is a query fronted. It serves read queries in MetricsQL or PromQL.
   # vmselect collects results from configured `--storageNode` shards.
   vmselect-1:
-    image: victoriametrics/vmselect:v1.148.0-cluster
+    image: victoriametrics/vmselect:v1.146.0-cluster
     depends_on:
       - "vmstorage-1"
       - "vmstorage-2"
@@ -90,7 +90,7 @@ services:
       - "--vmalert.proxyURL=http://vmalert:8880"
     restart: always
   vmselect-2:
-    image: victoriametrics/vmselect:v1.148.0-cluster
+    image: victoriametrics/vmselect:v1.146.0-cluster
     depends_on:
       - "vmstorage-1"
       - "vmstorage-2"
@@ -105,7 +105,7 @@ services:
   # read requests from Grafana, vmui, vmalert among vmselects.
   # It can be used as an authentication proxy.
   vmauth:
-    image: victoriametrics/vmauth:v1.148.0
+    image: victoriametrics/vmauth:v1.146.0
     depends_on:
       - "vmselect-1"
       - "vmselect-2"
@@ -119,7 +119,7 @@ services:
 
   # vmalert executes alerting and recording rules
   vmalert:
-    image: victoriametrics/vmalert:v1.148.0
+    image: victoriametrics/vmalert:v1.146.0
     depends_on:
       - "vmauth"
     ports:

deployment/docker/compose-vm-single.yml

@@ -3,7 +3,7 @@ services:
   #  It scrapes targets defined in --promscrape.config
   #  And forward them to --remoteWrite.url
   vmagent:
-    image: victoriametrics/vmagent:v1.148.0
+    image: victoriametrics/vmagent:v1.146.0
     depends_on:
       - "victoriametrics"
     ports:
@@ -18,7 +18,7 @@ services:
   # VictoriaMetrics instance, a single process responsible for
   # storing metrics and serve read requests.
   victoriametrics:
-    image: victoriametrics/victoria-metrics:v1.148.0
+    image: victoriametrics/victoria-metrics:v1.146.0
     ports:
       - 8428:8428
       - 8089:8089
@@ -59,7 +59,7 @@ services:
 
   # vmalert executes alerting and recording rules
   vmalert:
-    image: victoriametrics/vmalert:v1.148.0
+    image: victoriametrics/vmalert:v1.146.0
     depends_on:
       - "victoriametrics"
       - "alertmanager"

deployment/docker/rules/alerts-cluster.yml

@@ -75,7 +75,7 @@ groups:
             Consider to limit the ingestion rate, decrease retention or scale the disk space if possible."
 
       - alert: RequestErrorsToAPI
-        expr: increase(vm_http_request_errors_total[5m]) > 0
+        expr: increase(vm_http_request_errors_total{path=~".+", path!="*"}[5m]) > 0
         for: 15m
         labels:
           severity: warning
@@ -86,6 +86,18 @@ groups:
           description: "Requests to path {{ $labels.path }} are receiving errors.
             Please verify if clients are sending correct requests."
 
+      - alert: RequestErrorsToUnexpectedPaths
+        expr: sum(increase(vm_http_request_errors_total{path="*"}[5m])) by(job, instance, reason) > 0
+        for: 15m
+        labels:
+          severity: warning
+          show_at: dashboard
+        annotations:
+          dashboard: "{{ $externalURL }}/d/oS7Bi_0Wz?viewPanel=52&var-instance={{ $labels.instance }}"
+          summary: "Too many errors served for {{ $labels.job }} with reason {{ $labels.reason }} (instance {{ $labels.instance }})"
+          description: "Requests are failing with reason {{ $labels.reason }}.
+            Please verify if clients are sending correct requests."
+
       - alert: RPCErrors
         expr: |
           (
@@ -207,9 +219,9 @@ groups:
         annotations:
           summary: "IndexDB skipped registering items during data ingestion with reason={{ $labels.reason }}."
           description: |
-            VictoriaMetrics could skip registering new timeseries during ingestion if they fail the validation process. 
-            For example, `reason=too_long_item` means that time series cannot exceed 64KB. Please, reduce the number 
-            of labels or label values for such series. Or enforce these limits via `-maxLabelsPerTimeseries` and 
+            VictoriaMetrics could skip registering new timeseries during ingestion if they fail the validation process.
+            For example, `reason=too_long_item` means that time series cannot exceed 64KB. Please, reduce the number
+            of labels or label values for such series. Or enforce these limits via `-maxLabelsPerTimeseries` and
             `-maxLabelValueLen` command-line flags.
 
       - alert: TooManyTSIDMisses
@@ -223,4 +235,4 @@ groups:
             Unexpected TSID misses for \"{{ $labels.job }}\" ({{ $labels.instance }}) for the last 15 minutes.
             If this happens after unclean shutdown of VictoriaMetrics process (via \"kill -9\", OOM or power off),
             then this is OK - the alert must go away in a few minutes after the restart.
-            Otherwise this may point to the corruption of index data.
+            Otherwise this may point to the corruption of index data.

deployment/docker/rules/alerts-single-node.yml

@@ -75,7 +75,7 @@ groups:
             Consider to limit the ingestion rate, decrease retention or scale the disk space if possible."
 
       - alert: RequestErrorsToAPI
-        expr: increase(vm_http_request_errors_total[5m]) > 0
+        expr: increase(vm_http_request_errors_total{path=~".+"}[5m]) > 0
         for: 15m
         labels:
           severity: warning
@@ -173,9 +173,9 @@ groups:
         annotations:
           summary: "IndexDB skipped registering items during data ingestion with reason={{ $labels.reason }}."
           description: |
-            VictoriaMetrics could skip registering new timeseries during ingestion if they fail the validation process. 
-            For example, `reason=too_long_item` means that time series cannot exceed 64KB. Please, reduce the number 
-            of labels or label values for such series. Or enforce these limits via `-maxLabelsPerTimeseries` and 
+            VictoriaMetrics could skip registering new timeseries during ingestion if they fail the validation process.
+            For example, `reason=too_long_item` means that time series cannot exceed 64KB. Please, reduce the number
+            of labels or label values for such series. Or enforce these limits via `-maxLabelsPerTimeseries` and
             `-maxLabelValueLen` command-line flags.
 
       - alert: TooManyTSIDMisses
@@ -189,4 +189,4 @@ groups:
             Unexpected TSID misses for \"{{ $labels.job }}\" ({{ $labels.instance }}) for the last 15 minutes.
             If this happens after unclean shutdown of VictoriaMetrics process (via \"kill -9\", OOM or power off),
             then this is OK - the alert must go away in a few minutes after the restart.
-            Otherwise this may point to the corruption of index data.
+            Otherwise this may point to the corruption of index data.

deployment/docker/rules/alerts-vmalert.yml

@@ -120,39 +120,3 @@ groups:
           summary: "vmalert instance {{ $labels.instance }} is failing to send notifications to Alertmanager"
           description: "vmalert instance {{ $labels.instance }} is failing to send alert notifications to \"{{ $labels.addr }}\".
             Check vmalert's logs for detailed error message."
-
-      - alert: AlertingRuleResultsApproachingLimit
-        expr: |
-          (
-            vmalert_alerting_rules_last_evaluation_samples
-              > on(group,file) group_left()
-            (vmalert_group_rule_results_limit * 0.9)
-          )
-            and on(group,file)
-          (vmalert_group_rule_results_limit > 0)
-        for: 5m
-        labels:
-          severity: warning
-        annotations:
-          summary: "Alerting rule {{ $labels.alertname }} in group {{ $labels.group }} is approaching the configured results limit"
-          description: "Alerting rule \"{{ $labels.alertname }}\" from group \"{{ $labels.group }}\" in file \"{{ $labels.file }}\" produced {{ $value }} samples in last evaluation, which approaches the configured results limit.
-            If the produced results exceed the limit, the rule will be marked with an error and all its results will be discarded. 
-            Try increasing the results limit for the group or reducing the number of series produced by the rule. See https://docs.victoriametrics.com/victoriametrics/vmalert/#groups."
-
-      - alert: RecordingRuleResultsApproachingLimit
-        expr: |
-          (
-            vmalert_recording_rules_last_evaluation_samples
-              > on(group,file) group_left()
-            (vmalert_group_rule_results_limit * 0.9)
-          )
-            and on(group,file)
-          (vmalert_group_rule_results_limit > 0)
-        for: 5m
-        labels:
-          severity: warning
-        annotations:
-          summary: "Recording rule {{ $labels.recording }} in group {{ $labels.group }} is approaching the configured results limit"
-          description: "Recording rule \"{{ $labels.recording }}\" from group \"{{ $labels.group }}\" in file \"{{ $labels.file }}\" produced {{ $value }} samples in last evaluation, which approaches the configured results limit.
-            If the produced results exceed the limit, the rule will be marked with an error and all its results will be discarded. 
-            Try increasing the results limit for the group or reducing the number of series produced by the rule. See https://docs.victoriametrics.com/victoriametrics/vmalert/#groups."

deployment/docker/rules/alerts-vmauth.yml

@@ -56,20 +56,3 @@ groups:
           summary: "Too many errors served for user {{ $labels.username }} (instance {{ $labels.instance }})"
           description: "Requests from user {{ $labels.username }} are receiving errors.
             Please check the vmauth logs to verify that the configuration is correct and clients are sending valid requests."
-      - alert: InvalidAuthTokenRequestErrors
-        expr: sum(increase(vmauth_http_request_errors_total{reason="invalid_auth_token"}[5m])) without (instance, reason) > 0
-        for: 15m
-        labels:
-          severity: warning
-        annotations:
-          dashboard: "{{ $externalURL }}/d/nbuo5Mr4k?viewPanel=16&var-job={{ $labels.job }}"
-          summary: "vmauth {{ $labels.job }} is receiving many requests with invalid auth tokens"
-          description: |
-            vmauth {{ $labels.job }} received {{ $value }} requests with invalid auth tokens in the last 5 minutes.
-            This may indicate:
-              - credentials have been updated on vmauth but not on clients
-              - client misconfiguration or use of an expired token
-              - a brute-force attack.
-
-            Check vmauth metrics for longevity and scale of the issue. 
-            Check access log for detailed information: https://docs.victoriametrics.com/victoriametrics/vmauth/#access-log

deployment/docker/vmanomaly/vmanomaly-integration/compose.yml

@@ -1,6 +1,6 @@
 services:
   vmagent:
-    image: victoriametrics/vmagent:v1.148.0
+    image: victoriametrics/vmagent:v1.146.0
     depends_on:
       - "victoriametrics"
     ports:
@@ -14,7 +14,7 @@ services:
     restart: always
 
   victoriametrics:
-    image: victoriametrics/victoria-metrics:v1.148.0
+    image: victoriametrics/victoria-metrics:v1.146.0
     ports:
       - 8428:8428
     volumes:
@@ -40,7 +40,7 @@ services:
     restart: always
 
   vmalert:
-    image: victoriametrics/vmalert:v1.148.0
+    image: victoriametrics/vmalert:v1.146.0
     depends_on:
       - "victoriametrics"
     ports:

docs/anomaly-detection/CHANGELOG.md

@@ -283,7 +283,7 @@ Released: 2025-06-13
 ## v1.23.2
 Released: 2025-06-09
 
-- IMPROVEMENT: Increased convergence speed for [OnlineZScoreModel](https://docs.victoriametrics.com/anomaly-detection/components/models/#online-z-score), [ZScoreModel](https://docs.victoriametrics.com/anomaly-detection/components/models/#z-score), [MADModel](https://docs.victoriametrics.com/anomaly-detection/components/models/#mad-median-absolute-deviation), and [OnlineMADModel](https://docs.victoriametrics.com/anomaly-detection/components/models/#online-mad) models. Now it works better for tight optimization budgets (n_trials < 10, timeout < 1s)
+- IMPROVEMENT: Increased convergence speed for [OnlineZScoreModel](https://docs.victoriametrics.com/anomaly-detection/components/models/#online-z-score), [ZScoreModel](https://docs.victoriametrics.com/anomaly-detection/components/models/#z-score), [MADModel](https://docs.victoriametrics.com/anomaly-detection/components/models/#mad), and [OnlineMADModel](https://docs.victoriametrics.com/anomaly-detection/components/models/#online-mad) models. Now it works better for tight optimization budgets (n_trials < 10, timeout < 1s)
 
 - BUGFIX: Now mean and variance of [OnlineZScoreModel](https://docs.victoriametrics.com/anomaly-detection/components/models/#online-z-score) with exponential `decay` < 1 [arg](https://docs.victoriametrics.com/anomaly-detection/components/models/#decay) are properly calculated for unbiased predictions.
 
@@ -538,7 +538,7 @@ Released: 2024-10-01
 
 > A bug was discovered in this release that causes the service to crash. Please use the patch [v1.16.1](#v1161) to resolve this issue.
 
-- FEATURE: Introduced data dumps to a host filesystem for [VmReader](https://docs.victoriametrics.com/anomaly-detection/components/reader/#vm-reader).  Resource-intensive setups (multiple queries returning many metrics, bigger `fit_window` arg) will have RAM consumption reduced during fit calls.
+- FEATURE: Introduced data dumps to a host filesystem for [VmReader](https://docs.victoriametrics.com/anomaly-detection/#vm-reader).  Resource-intensive setups (multiple queries returning many metrics, bigger `fit_window` arg) will have RAM consumption reduced during fit calls.
 - IMPROVEMENT: Added a `groupby` argument for logical grouping in [multivariate models](https://docs.victoriametrics.com/anomaly-detection/components/models/#multivariate-models). When specified, a separate multivariate model is trained for each unique combination of label values in the `groupby` columns. For example, to perform multivariate anomaly detection on metrics at the machine level without cross-entity interference, you can use `groupby: [host]` or `groupby: [instance]`, ensuring one model per entity being trained (e.g., per host). Please find more details [here](https://docs.victoriametrics.com/anomaly-detection/components/models/#group-by).
 - IMPROVEMENT: Improved performance of [VmReader](https://docs.victoriametrics.com/anomaly-detection/components/reader/#vm-reader) on multicore instances for reading and data processing.
 - IMPROVEMENT: Introduced new CLI argument aliases to enhance compatibility with [Helm charts](https://github.com/VictoriaMetrics/helm-charts/blob/master/charts/victoria-metrics-anomaly/README.md) (i.e. using secrets) and better align with [VictoriaMetrics flags](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#list-of-command-line-flags):
@@ -685,7 +685,7 @@ Released: 2024-02-15
 
 ## v1.9.2
 Released: 2024-01-29
-- BUGFIX: now multivariate models (like [`IsolationForestMultivariateModel`](https://docs.victoriametrics.com/anomaly-detection/components/models/#isolation-forest-multivariate)) are properly handled throughout fit/infer phases.
+- BUGFIX: now multivariate models (like [`IsolationForestMultivariateModel`](https://docs.victoriametrics.com/anomaly-detection/components/models/#isolation-foresthttpsenwikipediaorgwikiisolation_forest-multivariate)) are properly handled throughout fit/infer phases.
 
 
 ## v1.9.1

docs/anomaly-detection/UI.md

@@ -553,7 +553,7 @@ preset: ui
 # other optional server/settings parameters, e.g. port, max_concurrent_tasks, n_workers, logger_levels, etc.
 ```
 
-using one of the [deployment methods](https://docs.victoriametrics.com/anomaly-detection/quickstart/#how-to-install-and-run-vmanomaly) in a [QuickStart guide](https://docs.victoriametrics.com/anomaly-detection/quickstart/), e.g. via Docker.
+using one of the [deployment methods](https://docs.victoriametrics.com/anomaly-detection/quickstart/#how-to-install-and-run-vmanomaly) in a [QuickStart guide](https://docs.victoriametrics.com/anomaly-detection/quickstart/#quickstart), e.g. via Docker.
 
 Retrieve the UI at `http://<vmanomaly-host>:<port>` (e.g. at `http://localhost:8490` if running locally with default port) and start exploring anomaly detection models and their configurations interactively.
 

docs/anomaly-detection/components/server.md

@@ -32,7 +32,7 @@ Server component of VictoriaMetrics Anomaly Detection (`vmanomaly`) is responsib
 ### Example Configuration
 
 > [!TIP]
-> If [hot-reloading](https://docs.victoriametrics.com/anomaly-detection/components/#hot-reload) is enabled in vmanomaly service, the server will automatically pick up changes made to the configuration file without requiring a restart.
+> If [hot-reloading](https://docs.victoriametrics.com/anomaly-detection/components/scheduler/#hot-reloading) is enabled in vmanomaly service, the server will automatically pick up changes made to the configuration file without requiring a restart.
 
 ```yaml
 server:
@@ -63,4 +63,4 @@ reader:
 
 After starting the `vmanomaly` server with the above configuration, UI can be accessed at `<vmanomaly-host>:8490/vmanomaly/vmui/` (e.g. `http://localhost:8490/vmanomaly/vmui/`).
 
-Rest API endpoints (e.g. `/metrics`) can be accessed at `<vmanomaly-host>:8490/vmanomaly/metrics` (e.g. `http://localhost:8490/vmanomaly/metrics`).
+Rest API endpoints (e.g. `/metrics`) can be accessed at `<vmanomaly-host>:8490/vmanomaly/metrics` (e.g. `http://localhost:8490/vmanomaly/metrics`).

docs/anomaly-detection/guides/guide-vmanomaly-vmalert/README.md

@@ -10,9 +10,9 @@ sitemap:
 
 - To use *vmanomaly*, part of the enterprise package, a license key is required. Obtain your key [here](https://victoriametrics.com/products/enterprise/trial/) for this tutorial or for enterprise use.
 - In the tutorial, we'll be using the following VictoriaMetrics components:
-  -  [VictoriaMetrics Single-Node](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) (v1.148.0)
-  -  [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/) (v1.148.0)
-  -  [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) (v1.148.0)
+  -  [VictoriaMetrics Single-Node](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) (v1.146.0)
+  -  [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/) (v1.146.0)
+  -  [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) (v1.146.0)
 - [Grafana](https://grafana.com/) (v12.2.0)
 - [Docker](https://docs.docker.com/get-docker/) and [Docker Compose](https://docs.docker.com/compose/)
 - [Node exporter](https://github.com/prometheus/node_exporter#node-exporter) (v1.9.1) and [Alertmanager](https://prometheus.io/docs/alerting/latest/alertmanager/) (v0.28.1)
@@ -323,7 +323,7 @@ Let's wrap it all up together into the `docker-compose.yml` file.
 services:
   vmagent:
     container_name: vmagent
-    image: victoriametrics/vmagent:v1.148.0
+    image: victoriametrics/vmagent:v1.146.0
     depends_on:
       - "victoriametrics"
     ports:
@@ -340,7 +340,7 @@ services:
 
   victoriametrics:
     container_name: victoriametrics
-    image: victoriametrics/victoria-metrics:v1.148.0
+    image: victoriametrics/victoria-metrics:v1.146.0
     ports:
       - 8428:8428
     volumes:
@@ -373,7 +373,7 @@ services:
 
   vmalert:
     container_name: vmalert
-    image: victoriametrics/vmalert:v1.148.0
+    image: victoriametrics/vmalert:v1.146.0
     depends_on:
       - "victoriametrics"
     ports:

docs/guides/grafana-vmauth-openid-configuration/README.md

@@ -240,23 +240,23 @@ vmagent will write data into VictoriaMetrics single-node and cluster (with tenan
 # compose.yaml
 services:
   vmsingle:
-    image: victoriametrics/victoria-metrics:v1.148.0
+    image: victoriametrics/victoria-metrics:v1.146.0
 
   vmstorage:
-    image: victoriametrics/vmstorage:v1.148.0-cluster
+    image: victoriametrics/vmstorage:v1.146.0-cluster
 
   vminsert:
-    image: victoriametrics/vminsert:v1.148.0-cluster
+    image: victoriametrics/vminsert:v1.146.0-cluster
     command:
       - -storageNode=vmstorage:8400
 
   vmselect:
-    image: victoriametrics/vmselect:v1.148.0-cluster
+    image: victoriametrics/vmselect:v1.146.0-cluster
     command:
       - -storageNode=vmstorage:8401
 
   vmagent:
-    image: victoriametrics/vmagent:v1.148.0
+    image: victoriametrics/vmagent:v1.146.0
     volumes:
       - ./scrape.yaml:/etc/vmagent/config.yaml
     command:
@@ -308,7 +308,7 @@ Now add the vmauth service to `compose.yaml`:
 # compose.yaml
 services:
   vmauth:
-    image: docker.io/victoriametrics/vmauth:v1.148.0
+    image: docker.io/victoriametrics/vmauth:v1.146.0
     ports:
       - 8427:8427
     volumes:

docs/guides/vm-architectures/README.md

@@ -39,7 +39,7 @@ Each subsequent section of this guide presents an architecture designed to handl
 ### The decision tree
 
 <p align="center">
-<img src="/guides/vm-architectures/decision-tree.webp" alt="Decision Tree" width="80%">
+<img src="decision-tree.webp" alt="Decision Tree" width="80%">
 </p>
 
 ## Basic
@@ -62,7 +62,7 @@ Installation guide reference: [VictoriaMetrics Single](https://docs.victoriametr
 **Schema:**
 
 <p align="center">
-<img src="/guides/vm-architectures/basic-architecture.webp" alt="Basic Architecture" width="40%">
+<img src="basic-architecture.webp" alt="Basic Architecture" width="40%">
 </p>
 
 ### Unavailability Scenarios
@@ -93,7 +93,7 @@ High availability implementation: [HA VictoriaMetrics Cluster](https://docs.vict
 **Schema:**
 
 <p align="center">
-<img src="/guides/vm-architectures/single-az-architecture.webp" alt="Single AZ Architecture" width="60%">
+<img src="single-az-architecture.webp" alt="Single AZ Architecture" width="60%">
 </p>
 
 ### Application vs. Storage Replication
@@ -210,7 +210,7 @@ To ensure reliability, vmagent implements the bulkhead pattern: each destination
 **Schema:**
 
 <p align="center">
-<img src="/guides/vm-architectures/multi-az-architecture.webp" alt="Multi-AZ Architecture" width="65%">
+<img src="multi-az-architecture.webp" alt="Multi-AZ Architecture" width="65%">
 </p>
 
 ### Unavailability Scenarios
@@ -257,7 +257,7 @@ For complete disaster recovery, this entire cell-based architecture is duplicate
 A global, stateless layer of routing cells (vmagent, vmauth) sits on top. It routes traffic to several logical groups of storage cells. Each storage group contains multiple AZs, and data is replicated or sharded across them. There are several approaches to implementing it.
 
 <p align="center">
-<img src="/guides/vm-architectures/hyperscale-architecture.webp" alt="Hyperscale Architecture" width="85%">
+<img src="hyperscale-architecture.webp" alt="Hyperscale Architecture" width="85%">
 </p>
 
 ### Choosing Your Read Path Strategy
@@ -375,7 +375,7 @@ This multitenancy approach gives us another trade-off in the isolation implement
 **Schema:**
 
 <p align="center">
-<img src="/guides/vm-architectures/logical-layers-architecture.webp" alt="Logical Layers Architecture" width="80%">
+<img src="logical-layers-architecture.webp" alt="Logical Layers Architecture" width="80%">
 </p>
 
 **Path A: Shared resources.** We have a single, shared pool of all cluster components.

docs/guides/vmagent-openid-configuration/README.md

@@ -155,15 +155,15 @@ These services will store and query the metrics scraped by vmagent.
 # compose.yaml
 services:
   vmstorage:
-    image: victoriametrics/vmstorage:v1.148.0-cluster
+    image: victoriametrics/vmstorage:v1.146.0-cluster
 
   vminsert:
-    image: victoriametrics/vminsert:v1.148.0-cluster
+    image: victoriametrics/vminsert:v1.146.0-cluster
     command:
       - -storageNode=vmstorage:8400
 
   vmselect:
-    image: victoriametrics/vmselect:v1.148.0-cluster
+    image: victoriametrics/vmselect:v1.146.0-cluster
     command:
       - -storageNode=vmstorage:8401
     ports:
@@ -196,7 +196,7 @@ Add the vmauth service to `compose.yaml`:
 # compose.yaml
 services:
   vmauth:
-    image: victoriametrics/vmauth:v1.148.0-enterprise
+    image: victoriametrics/vmauth:v1.146.0-enterprise
     ports:
       - 8427:8427
     volumes:
@@ -251,7 +251,7 @@ Add the vmagent service to `compose.yaml` with OAuth2 configuration:
 # compose.yaml
 services:
   vmagent:
-    image: victoriametrics/vmagent:v1.148.0
+    image: victoriametrics/vmagent:v1.146.0
     volumes:
       - ./scrape.yaml:/etc/vmagent/config.yaml
     command:

docs/guides/vmalert-datasource-managed-alerts-grafana/README.md

@@ -107,7 +107,7 @@ The final piece is the Docker Compose file. This ties all the services together
 # compose.yml
 services:
   victoriametrics:
-    image: victoriametrics/victoria-metrics:v1.148.0
+    image: victoriametrics/victoria-metrics:v1.146.0
     command:
       - "--storageDataPath=/victoria-metrics-data"
       - "--selfScrapeInterval=10s"
@@ -128,7 +128,7 @@ services:
       - ./alertmanager.yml:/etc/alertmanager/alertmanager.yml:ro
 
   vmalert:
-    image: victoriametrics/vmalert:v1.148.0
+    image: victoriametrics/vmalert:v1.146.0
     depends_on:
       - victoriametrics
       - alertmanager

docs/victoriametrics/Articles.md

@@ -49,7 +49,7 @@ See also [case studies](https://docs.victoriametrics.com/victoriametrics/casestu
 * [Brewblox: InfluxDB to Victoria Metrics](https://www.brewblox.com/dev/decisions/20210718_victoria_metrics.html)
 * [Techetio: Evaluating Backend Options For Prometheus Metrics](https://www.techetio.com/2022/08/21/evaluating-backend-options-for-prometheus-metrics/)
 * [Asserts: Announcing Asserts](https://www.asserts.ai/blog/announcing-asserts/)
-* [Optimizing Linkerd metrics in Prometheus](https://itnext.io/optimizing-linkerd-metrics-in-prometheus-de607ec10f6b)
+* [Optimizing Linkerd metrics in Prometheus](https://aatarasoff.medium.com/optimizing-linkerd-metrics-in-prometheus-de607ec10f6b)
 * [VictoriaMetrics vs. OpenTSDB](https://blg.robot-house.us/posts/tsdbs-grow/)
 * [Monitoring of multiple OpenShift clusters with VictoriaMetrics](https://medium.com/ibm-garage/monitoring-of-multiple-openshift-clusters-with-victoriametrics-d4f0979e2544)
 * [Ultra Monitoring with Victoria Metrics](https://dev.to/aws-builders/ultra-monitoring-with-victoria-metrics-1p2)
@@ -114,8 +114,6 @@ See also [case studies](https://docs.victoriametrics.com/victoriametrics/casestu
 * [QCon London 2026: Wrangling Telemetry at Scale, a Guide to Self-Hosted Observability](https://www.infoq.com/news/2026/03/self-hosted-observability/)
 * [How We Made Telemetry Queries 10x Faster: Chunk-Split Caching for Metrics, Logs, and Traces](https://mirastacklabs.ai/blog/chunk-split-caching/)
 * [Claude Code: creating Kubernetes debugging AI Agent for VictoriaMetrics](https://rtfm.co.ua/en/claude-code-creating-kubernetes-debugging-ai-agent-for-victoriametrics/)
-* [OpenTelemetry: OTel Collectors in Kubernetes and VictoriaMetrics Stack integration](https://itnext.io/opentelemetry-otel-collectors-in-kubernetes-and-victoriametrics-stack-integration-d907ed0a15a0)
-* [VictoriaMetrics vs Prometheus: my default, and when I still pick Prometheus](https://jorijn.com/en/blog/victoriametrics-vs-prometheus/)
 
 ## Third-party articles and slides about VictoriaLogs
 

docs/victoriametrics/CaseStudies.md

@@ -482,7 +482,7 @@ Across our production VictoriaMetrics clusters, in a 12 months period we go beyo
 
 ## Roblox
 
-[Roblox](https://www.roblox.com/) builds the tools and platform that empower people to create their own immersive experiences,
+[Roblox](https://roblox.com/) builds the tools and platform that empower people to create their own immersive experiences,
 so that any world they can imagine can be brought to life.
 
 With more than 200 million active monthly users, Roblox is one of the most popular gaming platforms on the Internet.
@@ -688,7 +688,8 @@ Thanos, Cortex and VictoriaMetrics were evaluated as a long-term storage for Pro
 - The API is compatible with Prometheus and nearly all standard PromQL queries work well out of the box.
 - Handles storage well, with periodic compaction which makes it easy to take snapshots.
 
-Please see [Monitoring K8S with VictoriaMetrics](https://youtu.be/ZJQYW-cFOms) video and [Infrastructure monitoring with Prometheus at Zerodha](https://zerodha.tech/blog/infra-monitoring-at-zerodha/) blog post for more details.
+Please see [Monitoring K8S with VictoriaMetrics](https://docs.google.com/presentation/d/1g7yUyVEaAp4tPuRy-MZbPXKqJ1z78_5VKuV841aQfsg/edit) slides,
+[video](https://youtu.be/ZJQYW-cFOms) and [Infrastructure monitoring with Prometheus at Zerodha](https://zerodha.tech/blog/infra-monitoring-at-zerodha/) blog post for more details.
 
 ## zhihu
 

docs/victoriametrics/Cluster-VictoriaMetrics.md

@@ -639,7 +639,7 @@ Also in the cluster version the `/prometheus/api/v1` endpoint ingests  `jsonl`,
     - `prometheus/api/v1/import` - for importing data obtained via `api/v1/export` at `vmselect` (see below), JSON line format.
     - `prometheus/api/v1/import/native` - for importing data obtained via `api/v1/export/native` on `vmselect` (see below).
     - `prometheus/api/v1/import/csv` - for importing arbitrary CSV data. See [these docs](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-import-csv-data) for details.
-    - `prometheus/api/v1/import/prometheus` - for importing data in [Prometheus text exposition format](https://prometheus.io/docs/instrumenting/exposition_formats/#prometheus-text-format) and in [OpenMetrics format](https://github.com/prometheus/OpenMetrics/blob/main/specification/OpenMetrics.md). This endpoint also supports [Pushgateway protocol](https://github.com/prometheus/pushgateway#url). See [these docs](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-import-data-in-prometheus-exposition-format) for details.
+    - `prometheus/api/v1/import/prometheus` - for importing data in [Prometheus text exposition format](https://github.com/prometheus/docs/blob/master/content/docs/instrumenting/exposition_formats.md#text-based-format) and in [OpenMetrics format](https://github.com/OpenObservability/OpenMetrics/blob/master/specification/OpenMetrics.md). This endpoint also supports [Pushgateway protocol](https://github.com/prometheus/pushgateway#url). See [these docs](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-import-data-in-prometheus-exposition-format) for details.
     - `opentelemetry/v1/metrics` - for ingesting data via [OpenTelemetry protocol for metrics](https://github.com/open-telemetry/opentelemetry-specification/blob/97c826b70e2f89cfdf655d5150791f3f0c2bae19/specification/metrics/data-model.md). See [these docs](https://docs.victoriametrics.com/victoriametrics/integrations/opentelemetry/).
     - `datadog/api/v1/series` - for ingesting data with DataDog submit metrics API v1. See [these docs](https://docs.victoriametrics.com/victoriametrics/url-examples/#datadogapiv1series) for details.
     - `datadog/api/v2/series` - for ingesting data with [DataDog submit metrics API](https://docs.datadoghq.com/api/latest/metrics/#submit-metrics). See [these docs](https://docs.victoriametrics.com/victoriametrics/integrations/datadog/) for details.

docs/victoriametrics/FAQ.md

@@ -247,7 +247,7 @@ See [How to migrate from InfluxDB to VictoriaMetrics](https://docs.victoriametri
 * TimescaleDB insists on using SQL as a query language. While SQL is more powerful than PromQL, this power is rarely required during typical usages of a TSDB. Real-world queries usually [look clearer and simpler when written in PromQL than in SQL](https://medium.com/@valyala/promql-tutorial-for-beginners-9ab455142085).
 * VictoriaMetrics requires [up to 70x less storage space compared to TimescaleDB](https://medium.com/@valyala/when-size-matters-benchmarking-victoriametrics-vs-timescale-and-influxdb-6035811952d4) for storing the same amount of time series data. The gap in storage space usage can be decreased from 70x to 3x if [compression in TimescaleDB is properly configured](https://docs.timescale.com/use-timescale/latest/compression/) (it isn't an easy task in general :)).
 * VictoriaMetrics requires up to 10x less CPU and RAM resources than TimescaleDB for processing production data. See [this article](https://abiosgaming.com/press/high-cardinality-aggregations/) for details.
-* TimescaleDB is [harder to set up, configure and operate](https://www.tigerdata.com/docs/get-started/choose-your-path/install-timescaledb#tab=ubuntu) than VictoriaMetrics (see [how to run VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-start-victoriametrics)).
+* TimescaleDB is [harder to set up, configure and operate](https://docs.timescale.com/timescaledb/latest/how-to-guides/install-timescaledb/self-hosted/ubuntu/installation-apt-ubuntu/) than VictoriaMetrics (see [how to run VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-start-victoriametrics)).
 * VictoriaMetrics accepts data in multiple popular data ingestion protocols – InfluxDB, OpenTSDB, Graphite, CSV – while TimescaleDB supports only SQL inserts.
 * VictoriaMetrics can be queried via [Graphite's API](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#graphite-api-usage).
 
@@ -269,7 +269,7 @@ We provide commercial support for both versions. [Contact us](https://victoriame
 [VictoriaMetrics Cloud](https://console.victoriametrics.cloud/signUp?utm_source=website&utm_campaign=docs_vm_faq) – the most cost-efficient hosted monitoring platform, operated by VictoriaMetrics core team.
 
 <!-- Links inside the paragraph break navigation in the right-side menu. To fix this, an explicit anchor definition has been added. -->
-## Why doesn't VictoriaMetrics support the [Prometheus remote read API](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#remote_read)? {#why-doesnrsquot-victoriametrics-support-the-prometheus-remote-read-api-}
+## Why doesn't VictoriaMetrics support the [Prometheus remote read API](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#%3Cremote_read%3E)? {#why-doesnrsquot-victoriametrics-support-the-prometheus-remote-read-api-}
 
 The remote read API requires transferring all the raw data for all the requested metrics over the given time range. For instance,
 if a query covers 1000 metrics with 10K values each, then the remote read API has to return `1000*10K`=10M metric values to Prometheus.
@@ -338,15 +338,13 @@ File bugs and feature requests in our [GitHub Issues](https://github.com/Victori
 ## Where can I find information about multi-tenancy?
 
 See [these docs](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multitenancy).
-Multitenancy is fully supported only by the [cluster version](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) of VictoriaMetrics.
-Single-node provides limited [multitenancy](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#multi-tenancy) support to facilitate
-the migration [from single-node to cluster](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#from-single-node-to-cluster).
+Multitenancy is supported only by the [cluster version](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) of VictoriaMetrics.
 
 ## How to set a memory limit for VictoriaMetrics components?
 
 All VictoriaMetrics components provide command-line flags to control the size of internal buffers and caches:
 `-memory.allowedPercent` and `-memory.allowedBytes` (pass `-help` to any VictoriaMetrics component in order to see the description for these flags).
-These limits don't account for additional memory that may be needed to process incoming queries.
+These limits don't take into account additional memory, which may be needed for processing incoming queries.
 Hard limits may be enforced only by the OS via [cgroups](https://en.wikipedia.org/wiki/Cgroups),
 Docker (see [these docs](https://docs.docker.com/config/containers/resource_constraints)) or
 Kubernetes (see [these docs](https://kubernetes.io/docs/concepts/configuration/manage-resources-containers)).
@@ -467,13 +465,9 @@ Cluster version of VictoriaMetrics may be preferred over single-node VictoriaMet
 
 ## How to migrate data from single-node VictoriaMetrics to cluster version?
 
-The single-node version of VictoriaMetrics stores data on disk in a slightly different format compared to the cluster version of VictoriaMetrics.
-This makes it impossible to just copy the on-disk data from the `-storageDataPath` directory from single-node VictoriaMetrics to a `vmstorage` node in a VictoriaMetrics cluster.
-
-There are two options, however:
-
-1. Deploy a new cluster next to the existing single-node and let them co-exist until the cluster is filled with new data and the old data in vmsingle becomes outside of the retention period. This option requires no data migration or downtime. See instructions [here](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#from-single-node-to-cluster).
-2. If you need to actually migrate data from a single-node VictoriaMetrics to the cluster version (and/or possibly modify it), then follow [these vmctl instructions](https://docs.victoriametrics.com/victoriametrics/vmctl/victoriametrics/).
+The single-node version of VictoriaMetrics stores data on disk in slightly different format compared to the cluster version of VictoriaMetrics.
+This makes it impossible to just copy the on-disk data from `-storageDataPath` directory from single-node VictoriaMetrics to a `vmstorage` node in VictoriaMetrics cluster.
+If you need to migrate data from a single-node VictoriaMetrics to the cluster version, then [follow these instructions](https://docs.victoriametrics.com/victoriametrics/vmctl/victoriametrics/).
 
 ## Why isn't MetricsQL 100% compatible with PromQL?
 

docs/victoriametrics/MetricsQL.md

@@ -91,9 +91,9 @@ The list of MetricsQL features on top of PromQL:
   Labels from the `on()` list aren't copied.
 * [Aggregate functions](#aggregate-functions) accept arbitrary number of args.
   For example, `avg(q1, q2, q3)` would return the average values for every point across time series returned by `q1`, `q2` and `q3`.
-* [@ modifier](https://prometheus.io/docs/prometheus/latest/querying/basics/#-modifier) can be put anywhere in the query.
+* [@ modifier](https://prometheus.io/docs/prometheus/latest/querying/basics/#modifier) can be put anywhere in the query.
   For example, `sum(foo) @ end()` calculates `sum(foo)` at the `end` timestamp of the selected time range `[start ... end]`.
-* Arbitrary subexpression can be used as [@ modifier](https://prometheus.io/docs/prometheus/latest/querying/basics/#-modifier).
+* Arbitrary subexpression can be used as [@ modifier](https://prometheus.io/docs/prometheus/latest/querying/basics/#modifier).
   For example, `foo @ (end() - 1h)` calculates `foo` at the `end - 1 hour` timestamp on the selected time range `[start ... end]`.
 * [offset](https://prometheus.io/docs/prometheus/latest/querying/basics/#offset-modifier), lookbehind window in square brackets
   and `step` value for [subquery](#subqueries) may refer to the current step aka `$__interval` value from Grafana with `[Ni]` syntax.
@@ -482,7 +482,7 @@ See also [hoeffding_bound_lower](#hoeffding_bound_lower).
 #### holt_winters
 
 `holt_winters(series_selector[d], sf, tf)` is a [rollup function](#rollup-functions), which calculates Holt-Winters value
-(aka [double exponential smoothing](https://en.wikipedia.org/wiki/Exponential_smoothing#Double_exponential_smoothing_%28Holt_linear%29)) for [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
+(aka [double exponential smoothing](https://en.wikipedia.org/wiki/Exponential_smoothing#Double_exponential_smoothing)) for [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
 over the given lookbehind window `d` using the given smoothing factor `sf` and the given trend factor `tf`.
 Both `sf` and `tf` must be in the range `[0...1]`.
 
@@ -1154,7 +1154,7 @@ See also [asin](#asin) and [cos](#cos).
 #### acosh
 
 `acosh(q)` is a [transform function](#transform-functions), which returns
-[inverse hyperbolic cosine](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Definitions_in_terms_of_logarithms) for every point of every time series returned by `q`.
+[inverse hyperbolic cosine](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Inverse_hyperbolic_cosine) for every point of every time series returned by `q`.
 
 Metric names are stripped from the resulting series. Add [keep_metric_names](#keep_metric_names) modifier in order to keep metric names.
 
@@ -1176,7 +1176,7 @@ See also [acos](#acos) and [sin](#sin).
 #### asinh
 
 `asinh(q)` is a [transform function](#transform-functions), which returns
-[inverse hyperbolic sine](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Definitions_in_terms_of_logarithms) for every point of every time series returned by `q`.
+[inverse hyperbolic sine](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Inverse_hyperbolic_sine) for every point of every time series returned by `q`.
 
 Metric names are stripped from the resulting series. Add [keep_metric_names](#keep_metric_names) modifier in order to keep metric names.
 
@@ -1198,7 +1198,7 @@ See also [tan](#tan).
 #### atanh
 
 `atanh(q)` is a [transform function](#transform-functions), which returns
-[inverse hyperbolic tangent](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Definitions_in_terms_of_logarithms) for every point of every time series returned by `q`.
+[inverse hyperbolic tangent](https://en.wikipedia.org/wiki/Inverse_hyperbolic_functions#Inverse_hyperbolic_tangent) for every point of every time series returned by `q`.
 
 Metric names are stripped from the resulting series. Add [keep_metric_names](#keep_metric_names) modifier in order to keep metric names.
 
@@ -1229,7 +1229,8 @@ Metric names are stripped from the resulting series. Add [keep_metric_names](#ke
 `buckets_limit(limit, buckets)` is a [transform function](#transform-functions), which limits the number
 of [histogram buckets](https://valyala.medium.com/improving-histogram-usability-for-prometheus-and-grafana-bc7e5df0e350) to the given `limit`. 
 
-The given `limit` should be greater than `0`. If it is less than `3`, it will be automatically raised to `3` to preserve the first and last buckets for better accuracy of min and max values.
+The result will preserve the first and the last bucket to improve accuracy for min and max values. 
+So, if the `limit` is greater than 0 and less than 3, the function will still return 3 buckets: the first bucket, the last bucket, and a selected bucket.
 
 See also [prometheus_buckets](#prometheus_buckets) and [histogram_quantile](#histogram_quantile).
 

docs/victoriametrics/Quick-Start.md

@@ -14,178 +14,6 @@ aliases:
 - /quick-start/index.html
 - /quick-start/
 ---
-There are two ways to get started with VictoriaMetrics:
-
-* [Try it locally](https://docs.victoriametrics.com/victoriametrics/quick-start/#try-it-locally) - if you just want to see how VictoriaMetrics works,
-  go with the single binary: download it, start it with one command, and see live metrics
-  in the built-in UI in a couple of minutes. No Docker, no configuration files
-  and no extra components are required;
-* [Install it](https://docs.victoriametrics.com/victoriametrics/quick-start/#how-to-install) - if you want to set up VictoriaMetrics for real use,
-  pick a distribution (single-node, cluster or cloud) and an installation method
-  (Docker, Helm, binary releases, etc.).
-
-If you'd rather not install anything at all, try [Playgrounds](https://docs.victoriametrics.com/playgrounds/) -
-a list of publicly available playgrounds for VictoriaMetrics software.
-
-Whichever way you choose, you may also find interesting the other sections of this page,
-like how to [write](https://docs.victoriametrics.com/victoriametrics/quick-start/#write-data) and [query](https://docs.victoriametrics.com/victoriametrics/quick-start/#query-data) data,
-[alerting](https://docs.victoriametrics.com/victoriametrics/quick-start/#alerting),
-[data migration](https://docs.victoriametrics.com/victoriametrics/quick-start/#data-migration) from other TSDBs,
-and [productionization](https://docs.victoriametrics.com/victoriametrics/quick-start/#productionization)
-best practices for running VictoriaMetrics in production.
-
-## Try it locally
-
-The fastest way to try VictoriaMetrics on your own machine is its binary - the only thing needed to run it.
-
-### Step 1: Download the binary
-
-Create a directory for this test drive, so all the files created along the way stay in one place:
-
-```sh
-mkdir vm-quick-start && cd vm-quick-start
-```
-
-Download the `victoria-metrics-<os>-<arch>-<version>.tar.gz` archive for your OS and architecture
-from the [releases page](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest)
-and unpack it. It contains a single `victoria-metrics-prod` binary.
-
-For example, on Linux with `amd64` architecture:
-
-```sh
-wget https://github.com/VictoriaMetrics/VictoriaMetrics/releases/download/v1.148.0/victoria-metrics-linux-amd64-v1.148.0.tar.gz
-tar xzf victoria-metrics-linux-amd64-v1.148.0.tar.gz
-```
-
-The binary is self-contained and requires no installation - it is ready to run as is.
-
-### Step 2: Start VictoriaMetrics
-
-Starting VictoriaMetrics is as simple as executing the binary, with no arguments at all.
-But since it is nicer to have some data to explore right after the start, let's also enable self-scraping
-via the `-selfScrapeInterval` command-line flag, so VictoriaMetrics collects metrics about itself:
-
-```sh
-./victoria-metrics-prod -selfScrapeInterval=10s
-```
-
-VictoriaMetrics prints a couple of dozen log lines on start, describing the storage, caches
-and memory limits it sets up. Look for these two lines confirming that it is up and running:
-
-```sh
-2026-07-10T16:55:06.615Z    info    app/victoria-metrics/main.go:102    started VictoriaMetrics in 0.019 seconds
-...
-2026-07-10T16:55:06.615Z    info    lib/httpserver/httpserver.go:148    started server at http://0.0.0.0:8428/
-```
-
-That's it - VictoriaMetrics is running, listening on port `8428` and scraping its own metrics
-(CPU and memory usage, the number of stored metrics, request rates, etc.) every 10 seconds.
-If you list the `vm-quick-start` directory, you can see a new `victoria-metrics-data` directory
-created next to the binary - this is where the collected data is stored.
-
-Now that metrics are being collected, it's time to look at them.
-
-### Step 3: Explore the metrics
-
-Open [http://localhost:8428/vmui](http://localhost:8428/vmui) in your browser to access [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui) -
-the built-in UI for querying and graphing metrics. You should see its query page:
-
-![vmui query page](quick-start-vmui.webp)
-
-Self-scraped metrics become queryable within ~30 seconds after the start.
-
-Try the following:
-
-* Open the [metrics explorer](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#metrics-explorer)
-  at [http://localhost:8428/vmui/#/metrics](http://localhost:8428/vmui/#/metrics) to browse all collected metrics;
-* Enter a query in the input field at [http://localhost:8428/vmui](http://localhost:8428/vmui) and press `Enter`. For example:
-  * `process_resident_memory_bytes` - memory used by VictoriaMetrics;
-  * `rate(process_cpu_seconds_total)` - its CPU usage;
-  * `vm_rows{type=~"storage/.+"}` - the number of stored [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples).
-
-Queries are written in [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/) -
-a PromQL-compatible query language, so any PromQL query works here as well.
-
-So far the only available metrics are the ones VictoriaMetrics reports about itself - let's collect something more interesting.
-
-### Step 4 (optional): Collect metrics from your system
-
-Self-scraped metrics only describe VictoriaMetrics itself. To monitor your machine (CPU, memory, disk, network),
-run [node_exporter](https://github.com/prometheus/node_exporter) - the standard Prometheus exporter for host metrics -
-and let VictoriaMetrics scrape it. Single-node VictoriaMetrics has a built-in
-[Prometheus-compatible scraper](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-scrape-prometheus-exporters-such-as-node-exporter),
-so no other components are needed.
-
-1. Download the `node_exporter-<version>.<os>-<arch>.tar.gz` archive for your OS and architecture
-   from the [releases page](https://github.com/prometheus/node_exporter/releases/latest) and unpack it.
-   For example, on Linux with `amd64` architecture:
-
-   ```sh
-   wget https://github.com/prometheus/node_exporter/releases/download/v1.12.0/node_exporter-1.12.0.linux-amd64.tar.gz
-   tar xzf node_exporter-1.12.0.linux-amd64.tar.gz
-   ```
-
-   Unlike VictoriaMetrics, it unpacks into its own directory. Start it from there:
-
-   ```sh
-   ./node_exporter-1.12.0.linux-amd64/node_exporter
-   ```
-
-   It exposes host metrics at [http://localhost:9100/metrics](http://localhost:9100/metrics).
-
-1. Create a `scrape.yaml` file with the following contents:
-
-   ```yaml
-   scrape_configs:
-   - job_name: node-exporter
-     static_configs:
-     - targets:
-       - localhost:9100
-   ```
-
-1. Restart VictoriaMetrics with the `-promscrape.config` command-line flag pointing to this file:
-
-   ```sh
-   ./victoria-metrics-prod -selfScrapeInterval=10s -promscrape.config=scrape.yaml
-   ```
-
-Check [http://localhost:8428/targets](http://localhost:8428/targets) - the `node-exporter` target should have `state: up`.
-The target shows up as `state: down` until the first scrape happens, which can take some seconds -
-just reload the page a bit later.
-Now query host metrics in [vmui](http://localhost:8428/vmui). For example:
-
-* `node_memory_MemAvailable_bytes` - available memory on your machine;
-* `100 - avg(rate(node_cpu_seconds_total{mode="idle"})) * 100` - overall CPU usage in percent.
-
-See [scrape config examples](https://docs.victoriametrics.com/victoriametrics/scrape_config_examples/) for more advanced scrape configurations.
-
-Scraping pulls metrics from targets, but it is not the only way to get data in - metrics can also be pushed directly.
-
-### Step 5 (optional): Push your own metrics
-
-VictoriaMetrics also accepts metrics pushed via [many popular protocols](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#push-model).
-For example, insert a measurement using the InfluxDB line protocol with a plain `curl` command:
-
-```sh
-curl -d 'room_temperature,room=kitchen value=21.5' http://localhost:8428/write
-```
-
-Then query `room_temperature_value` in [vmui](http://localhost:8428/vmui) to see it.
-Take into account that freshly ingested data can take up to 30 seconds to show up in query results,
-so don't worry if it doesn't appear immediately - just retry the query a bit later.
-
-Once you're done experimenting, tidying everything up takes a single command.
-
-### Cleanup
-
-Stop VictoriaMetrics and node_exporter with `Ctrl+C` in their respective terminals. All the collected data lives in the `victoria-metrics-data` directory -
-delete it if you want to start from scratch. To remove all traces of this test drive,
-delete the whole `vm-quick-start` directory created at [step 1](https://docs.victoriametrics.com/victoriametrics/quick-start/#step-1-download-the-binary).
-
-This test drive only scratches the surface of what VictoriaMetrics can do. Ready for a real setup?
-Continue with the installation options below, or learn the [key concepts](https://docs.victoriametrics.com/victoriametrics/keyconcepts/)
-of writing and querying data first.
-
 ## How to install
 
 VictoriaMetrics is available in the following distributions:
@@ -208,12 +36,16 @@ VictoriaMetrics is available as:
 * [Ansible Roles](https://github.com/VictoriaMetrics/ansible-playbooks)
 * [Source code](https://github.com/VictoriaMetrics/VictoriaMetrics).
   See [How to build from sources](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-build-from-sources)
+* [VictoriaMetrics on Linode](https://www.linode.com/marketplace/apps/victoriametrics/victoriametrics/)
 * [VictoriaMetrics on DigitalOcean](https://marketplace.digitalocean.com/apps/victoriametrics-single)
 
 Just download VictoriaMetrics and follow [these instructions](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-start-victoriametrics).
 See [available integrations](https://docs.victoriametrics.com/victoriametrics/integrations/) with other systems like
 [Prometheus](https://docs.victoriametrics.com/victoriametrics/integrations/prometheus/) or [Grafana](https://docs.victoriametrics.com/victoriametrics/integrations/grafana/).
 
+> Want to see VictoriaMetrics in action, but without installing anything?
+> Try [Playgrounds](https://docs.victoriametrics.com/playgrounds/) - a list of publicly available playgrounds for VictoriaMetrics software.
+
 VictoriaMetrics is developed at a fast pace, so it is recommended to periodically check the [CHANGELOG](https://docs.victoriametrics.com/victoriametrics/changelog/)
 and perform [regular upgrades](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-upgrade-victoriametrics).
 
@@ -229,9 +61,9 @@ Download the newest available [VictoriaMetrics release](https://docs.victoriamet
 from [DockerHub](https://hub.docker.com/r/victoriametrics/victoria-metrics) or [Quay](https://quay.io/repository/victoriametrics/victoria-metrics?tab=tags):
 
 ```sh
-docker pull victoriametrics/victoria-metrics:v1.148.0
+docker pull victoriametrics/victoria-metrics:v1.146.0
 docker run -it --rm -v `pwd`/victoria-metrics-data:/victoria-metrics-data -p 8428:8428 \
- victoriametrics/victoria-metrics:v1.148.0 --selfScrapeInterval=5s -storageDataPath=victoria-metrics-data
+ victoriametrics/victoria-metrics:v1.146.0 --selfScrapeInterval=5s -storageDataPath=victoria-metrics-data
 ```
 
 _For Enterprise images, see [this link](https://docs.victoriametrics.com/victoriametrics/enterprise/#docker-images)._
@@ -634,15 +466,6 @@ It is recommended to read [Replication and data safety](https://docs.victoriamet
 
 For backup configuration, please refer to [vmbackup documentation](https://docs.victoriametrics.com/victoriametrics/vmbackup/).
 
-### Graceful shutdown
-
-To gracefully shut down a VictoriaMetrics process, send SIGTERM or SIGINT signal and wait until the process exits.
-See [how to send signals to processes](https://stackoverflow.com/questions/33239959/send-signal-to-process-from-command-line).
-
-Graceful shutdown is required for data safety. A successful graceful shutdown guarantees that pending in-memory data and 
-ongoing writes are flushed on disk before the process exits. During graceful shutdown, VictoriaMetrics stops accepting
-new HTTP connections and waits for in-flight requests to finish until `-http.maxGracefulShutdownDuration` expires.
-
 ### Configuring limits
 
 To avoid excessive resource usage or performance degradation, limits must be in place:

docs/victoriametrics/README.md

@@ -401,10 +401,6 @@ Resources:
 
 * [cardinality explorer playground](https://play.victoriametrics.com/select/accounting/1/6a716b0f-38bc-4856-90ce-448fd713e3fe/prometheus/graph/#/cardinality).
 * [Cardinality explorer blog post](https://victoriametrics.com/blog/cardinality-explorer/).
-* [skills/victoriametrics-cardinality-analysis](https://github.com/VictoriaMetrics/skills/blob/main/plugins/diagnostics/skills/victoriametrics-cardinality-analysis/SKILL.md) for [agent-assisted](https://docs.victoriametrics.com/ai-tools/#agent-skills) analysis.
-
-For monitoring or alerting on cardinality, use [vmestimator](https://docs.victoriametrics.com/victoriametrics/vmestimator/).
-vmestimator measures metrics cardinality across [arbitrary label dimensions](https://docs.victoriametrics.com/victoriametrics/vmestimator/#basic) in real time and exposes the [results as metrics](https://docs.victoriametrics.com/victoriametrics/vmestimator/#cardinality-metrics).
 
 ### Cardinality explorer statistic inaccuracy
 
@@ -1003,7 +999,7 @@ Note that it could be required to flush response cache after importing historica
 ### How to import data in Prometheus exposition format
 
 VictoriaMetrics accepts data in [Prometheus exposition format](https://github.com/prometheus/docs/blob/main/docs/instrumenting/exposition_formats.md),
-in [OpenMetrics format](https://github.com/prometheus/OpenMetrics/blob/main/specification/OpenMetrics.md)
+in [OpenMetrics format](https://github.com/OpenObservability/OpenMetrics/blob/master/specification/OpenMetrics.md)
 and in [Pushgateway format](https://github.com/prometheus/pushgateway#url) via `/api/v1/import/prometheus` path.
 
 For example, the following command imports a single line in Prometheus exposition format into VictoriaMetrics:
@@ -1551,18 +1547,6 @@ For example, the following command starts VictoriaMetrics, which accepts samples
 /path/to/victoria-metrics -futureRetention=1y
 ```
 
-By default, VictoriaMetrics accepts samples with timestamps as old as the configured `-retentionPeriod` allows, e.g. it accepts backfilled
-historical data as long as it fits into the retention. If you need rejecting samples with historical timestamps older than the specified
-duration, then specify the desired duration via the `-maxBackfillAge` command-line flag. This can be useful for limiting ingestion of
-historical samples, for example, when older data has been moved to another storage tier (nvme/hdd, hot/cold).
-`-maxBackfillAge` cannot exceed the configured `-retentionPeriod` - bigger values are automatically clamped to `-retentionPeriod`.
-
-For example, the following command starts VictoriaMetrics, which rejects ingested samples with timestamps older than 2 days:
-
-```sh
-/path/to/victoria-metrics -maxBackfillAge=2d
-```
-
 ### Multiple retentions
 
 Distinct retentions for distinct time series can be configured via [retention filters](#retention-filters)
@@ -1697,46 +1681,9 @@ See also [retention filters](#retention-filters).
 The downsampling can be evaluated for free by downloading and using enterprise binaries from [the releases page](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
 See how to request a [free trial license](https://victoriametrics.com/products/enterprise/trial/).
 
-## Multitenancy {#multi-tenancy}
+## Multi-tenancy
 
-Single-node VictoriaMetrics has limited
-[multitenancy](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multitenancy)
-support {{% available_from "v1.147.0" %}}. Specifically, a single-node can serve
-multitenant queries as if it were a `vmstorage`. The write path is not supported.
-
-The functionality is disabled by default and can be enabled by setting the
-`-vmselectAddr` flag. This will start the `vmselect RPC server` that accepts
-requests and serves responses in cluster format.
-
-Cluster data format assumes the presence of a `tenantID`. Single-node data
-format still does not support multitenancy, but it is possible to configure the
-single-node to specify which `tenantID` the single-node's data corresponds to with the
-`-accountID` and `-projectID` flags. Both are `0` by default, which means that
-`"0:0"` `tenantID` is used by default.
-
-For example, the following command will start a single-node that listens for
-vmselect RPC requests on the `8401` port. The requests must be either `multitenant`
-(i.e., want data for all tenants) or for `"12:34"` tenant. Otherwise, the
-single-node will return an empty result:
-
-```shell
-./victoria-metrics -storageDataPath=/data -vmselectAddr=:8401 -accountID=12 -projectID=34
-```
-
-The `tenantID` configuration is not persisted in any way and is enforced only at
-runtime. Thus, it is safe to change the `-accountID` and `-projectID` flag
-values at any time.
-
-Note that the single-node's HTTP handlers still do not support multitenancy.
-
-The purpose of this limited multitenancy support is enabling the single-node to
-operate in VictoriaMetrics cluster setups. I.e., one or more single-nodes that
-contain data for different tenants can be a part of a cluster, and the entire
-non-homogeneous deployment can be queried with a higher-level `vmselect`.
-
-This, in turn, enables easy [migrations from single-node to cluster](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#from-single-node-to-cluster).
-Previously, the only option was the use of
-[vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/victoriametrics/).
+Single-node VictoriaMetrics doesn't support multi-tenancy. Use the [cluster version](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multitenancy) instead.
 
 ## Scalability and cluster version
 
@@ -1891,7 +1838,7 @@ trivy image --sbom-sources oci \
   The only option is increasing the limit on [the number of open files in the OS](https://medium.com/@muhammadtriwibowo/set-permanently-ulimit-n-open-files-in-ubuntu-4d61064429a).
   The recommendation is not specific to VictoriaMetrics only, but also for any service that handles many HTTP connections and stores data on disk.
 * VictoriaMetrics is a write-heavy application, and its performance depends on disk performance. So be careful with other
-  applications or utilities (like [fstrim](https://manpages.ubuntu.com/manpages/noble/en/man8/fstrim.8.html))
+  applications or utilities (like [fstrim](https://manpages.ubuntu.com/manpages/lunar/en/man8/fstrim.8.html))
   which could [exhaust disk resources](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1521).
 * The recommended filesystem is `ext4`, the recommended persistent storage is [persistent HDD-based disk on GCP](https://cloud.google.com/compute/docs/disks/#pdspecs),
   since it is protected from hardware failures via internal replication, and it can be [resized on the fly](https://cloud.google.com/compute/docs/disks/add-persistent-disk#resize_pd).
@@ -2033,9 +1980,6 @@ in [cluster version of VictoriaMetrics](https://docs.victoriametrics.com/victori
 via [cache removal](https://docs.victoriametrics.com/victoriametrics/#cache-removal) procedure. This reset state endpoint can be protected via `-metricNamesStatsResetAuthKey`
 cmd-line flag. See [Security](https://docs.victoriametrics.com/victoriametrics/#security) for details.
 
-See [skills/victoriametrics-unused-metrics-analysis](https://github.com/VictoriaMetrics/skills/blob/main/plugins/diagnostics/skills/victoriametrics-unused-metrics-analysis/SKILL.md)
-for [agent-assisted](https://docs.victoriametrics.com/ai-tools/#agent-skills) analysis of unused metrics.
-
 ## Query tracing
 
 VictoriaMetrics supports query tracing, which can be used for determining bottlenecks during query processing.
@@ -2104,9 +2048,6 @@ Query tracing is allowed by default. It can be denied by passing `-denyQueryTrac
 * for query tracing - just click `Trace query` checkbox and re-run the query in order to investigate its' trace.
 * for exploring custom trace - go to the tab `Trace analyzer` and upload or paste JSON with trace information.
 
-See also [skills/vm-trace-analyzer](https://github.com/VictoriaMetrics/skills/blob/main/plugins/diagnostics/skills/vm-trace-analyzer/SKILL.md)
-for [agent-assisted](https://docs.victoriametrics.com/ai-tools/#agent-skills) analysis.
-
 ## Cardinality limiter
 
 By default, VictoriaMetrics doesn't limit the number of stored time series. The limit can be enforced by setting the following command-line flags:
@@ -2346,30 +2287,6 @@ Things to consider when copying data:
 For scenarios like single-to-cluster, cluster-to-single, re-sharding or migrating only a fraction of data: 
 [see how to migrate data from VictoriaMetrics via vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/victoriametrics/).
 
-### From Single-node to Cluster
-
-When, for some reason, the deployment needs to be switched from single-node to
-cluster (such as the single-node can't be scaled vertically anymore, or
-multitenancy becomes a requirement, etc.) the migration can be as simple as:
-
-1. Restart the existing single-node with multitenancy support enabled as
-   described in [Multitenancy](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#multi-tenancy) section.
-1. Deploy an empty cluster next to the existing single-node.
-1. Deploy higher-level `vmselect` and configure it to query both the existing
-   single-node and the new cluster.
-1. Start writing data to the cluster.
-1. Stop writing data to the single-node.
-
-This approach requires no data migration nor downtime (apart from restarting the
-single-node at step 1). And once the single-node data becomes outside the
-retention period, the single-node can be removed from the deployment.
-
-Note that if you need to actually migrate data to cluster and/or modify it, you
-will need to use
-[vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/victoriametrics/)
-instead.
-
-
 ### From other systems
 
 Use [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/) to migrate data from other systems to VictoriaMetrics.

docs/victoriametrics/Troubleshooting.md

@@ -212,7 +212,6 @@ These are the most common reasons for slow data ingestion in VictoriaMetrics:
    - Reduce the number of active time series. The [official Grafana dashboards for VictoriaMetrics](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#monitoring)
      contain a graph showing the number of active time series. Use the [cardinality explorer](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#cardinality-explorer)
      to determine and fix the source of [high cardinality](https://docs.victoriametrics.com/victoriametrics/faq/#what-is-high-cardinality).
-     See also [skills/victoriametrics-cardinality-analysis](https://github.com/VictoriaMetrics/skills/blob/main/plugins/diagnostics/skills/victoriametrics-cardinality-analysis/SKILL.md) for [agent-assisted](https://docs.victoriametrics.com/ai-tools/#agent-skills) analysis.
 
    - Insert performance can degrade when the same time series arrives with labels in a different order.
      Ensure your ingestion client always sends labels in a consistent order for each series.
@@ -305,8 +304,7 @@ to logs.
 These are the solutions that exist for improving the performance of slow queries:
 
 - Investigating the bottleneck in query execution using [query tracing](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#query-tracing).
-  It will show the percentage of time spent on each execution step and help understand the volume of processed data. See also [skills/vm-trace-analyzer](https://github.com/VictoriaMetrics/skills/blob/main/plugins/diagnostics/skills/vm-trace-analyzer/SKILL.md)
-  for [agent-assisted](https://docs.victoriametrics.com/ai-tools/#agent-skills) analysis.
+  It will show the percentage of time spent on each execution step and help understand the volume of processed data.
 
 - Adding more CPU and memory to VictoriaMetrics, so it may perform the slow query faster.
   If you use the cluster version of VictoriaMetrics, then migrating `vmselect` nodes to machines

docs/victoriametrics/changelog/CHANGELOG.md

@@ -26,63 +26,17 @@ See also [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-rel
 
 ## tip
 
-* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add `backend_load_balancing_policy` option (and the corresponding `-backendLoadBalancingPolicy` command-line flag), which allows configuring a load balancing policy for selecting among the targets discovered for a single backend via [`discover_backend_ips`](https://docs.victoriametrics.com/victoriametrics/vmauth/#discovering-backend-ips), independently of the `load_balancing_policy` used for selecting among the configured backends. By default `backend_load_balancing_policy` inherits the effective `load_balancing_policy` value, so this change is backward-compatible. See [these docs](https://docs.victoriametrics.com/victoriametrics/vmauth/#load-balancing) for more details.
-
-## [v1.148.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.148.0)
-
-Released at 2026-07-20
-
-* SECURITY: upgrade Go builder from Go1.26.4 to Go1.26.5. See [the list of issues addressed in Go1.26.5](https://github.com/golang/go/issues?q=milestone%3AGo1.26.5%20label%3ACherryPickApproved).
-
-* FEATURE: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): support `fill` modifiers to allow missing series on either side of a binary operation to be filled with a provided default value. See [#10598](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10598).
-* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): support scraping metrics over Unix domain sockets. The socket path can be configured via the `__unix_socket__` target label. See [#11156](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11156). Thanks to @vinyas-bharadwaj for contribution.
-* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): Improve background discovery performance for [http_sd](https://docs.victoriametrics.com/victoriametrics/sd_configs/#http_sd_configs) discovery. See [#8838](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/8838).
-* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): allow overriding `max_scrape_size` on a per-target basis via the `__max_scrape_size__` label during target relabeling. See [#11188](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11188).
-* FEATURE: [vmstorage](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) and [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): add `-maxBackfillAge` command-line flag for limiting ingestion of samples with historical timestamps, for example, when older data has been moved between storage tiers (nvme/hdd, hot/cold). See [#11199](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11199). Thanks to @AshwinRamaniPsg for contribution.
-* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): automatically preload relabeling rules configured via `-remoteWrite.relabelConfig` and `-remoteWrite.urlRelabelConfig` in the [metrics relabel debug UI](https://docs.victoriametrics.com/victoriametrics/relabeling/#relabel-debugging). See [#9918](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9918).
-
-* BUGFIX: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): Now drops metadata blocks when communicating with vmstorage nodes over the legacy RPC protocol. To avoid this limitation, upgrade `vmstorage` to a version that supports the new RPC protocol (>= [v1.137.0](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/docs/victoriametrics/changelog/CHANGELOG.md#v11370)). See [#11146](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11146).
-* BUGFIX: [vmbackup](https://docs.victoriametrics.com/victoriametrics/vmbackup/) and [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): retry S3 requests failing with `HTTP 429` status code or `TooManyRequests` error code. Previously such requests were not retried, so a short burst of rate limiting would fail the whole backup. See [#11218](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11218). Thanks to @gautamrizwani for contribution.
-* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly apply limit to metrics metadata response. See [#11139](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11139).
-* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fix a possible data race when processing OpenTelemetry metadata. See [#11238](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11238). Thanks to @nevgeny for contribution.
-* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): flush pending persistent queue data to chunk file before updating the metadata. This prevents the metadata writer offset from getting ahead of the chunk file size and avoids losing the persistent queue after an unclean shutdown. See [#11192](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11192).
-* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): atomically write persistent queue metainfo to prevent possible file corruption on ungraceful shutdown. See [#11192](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11192).
-* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fix increased CPU and memory usage when `-remoteWrite.urlRelabelConfig` or `-remoteWrite.streamAggr.config` flags are used. The bug was introduced in [#10854](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10854) and existed since [v1.147.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.147.0). See [#11250](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11250).
-* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): preserve newline formatting in alert and rule annotations on the Alerting page. See [#11171](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11171).
-* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): hide `Total metric names` stats on [Cardinality Explorer](https://docs.victoriametrics.com/victoriametrics/#cardinality-explorer) page when user selects a specific metric or label to focus. See [#11154](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11154) for details. Thanks to @lghuy05 for the contribution.
-* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): keep only one header navigation dropdown (`Explore`, `Tools`) open at a time. Previously, hovering across two dropdowns could briefly leave both open due to the close delay. See [#11224](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11224). Thanks to @antedotee for contribution.
-* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): return `408 Request Timeout` instead of `400 Bad Request` when the request body isn't received within `-maxQueueDuration`. This prevents `vmagent` from incorrectly downgrading the remote write protocol and dropping data when `vmauth` is used as a proxy for a remote write endpoint. See [#11272](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11272).
-## [v1.147.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.147.0)
-
-Released at 2026-07-06
-
-**Update Note 1:** [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): contains a bug that causes increased CPU and memory usage when `-remoteWrite.urlRelabelConfig` or `-remoteWrite.streamAggr.config` flags are used. The bug was introduced in [#10854](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10854). Upgrade to v1.148.0 or rollback to v1.146.0. See [#11250](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11250).
-
 * SECURITY: upgrade base docker image (Alpine) from 3.23.4 to 3.24.1. See [Alpine 3.24.1 release notes](https://www.alpinelinux.org/posts/Alpine-3.24.1-released.html).
 
 * FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add `default_vm_access_claim` field into `jwt` section of auth config. It could be used at [JWT claim placeholders](https://docs.victoriametrics.com/victoriametrics/vmauth/#jwt-claim-based-request-templating), if `JWT` token doesn't have `vm_access` claim. See [#11054](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11054).
 * FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): reduces CPU usage by 10% at [sharding among remote storages](https://docs.victoriametrics.com/victoriametrics/vmagent/#sharding-among-remote-storages). See [#11113](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11113). Thanks to @bennf for contribution.
-* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/), `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) and [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): introduce `64KiB` size limit for `metric metadata` fields - `Unit`, `Help` and `MetricFamilyName`. See [#11128](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11128).
-* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): reduce CPU usage for storing scrape target labels. See [#10919](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10919).
-* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add support for [Monitoring Data eXchange (MDX)](https://docs.victoriametrics.com/victoriametrics/vmagent/#monitoring-data-exchange): the ability to route only metrics from VictoriaMetrics services to a specific `-remoteWrite.url`. MDX is useful for building monitoring-of-monitoring where one remote storage should receive the full metric stream and another should receive only VictoriaMetrics metrics. Enable per destination with `-remoteWrite.mdx.enable=true`. See [#10600](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10600).
-* FEATURE: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): expose `vm_data_size_bytes{type="storage/metaindex"}` and `vm_data_size_bytes{type="indexdb/metaindex"}` metrics for tracking memory occupied by metaindex data. See [#11204](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11204). Thanks to @SamarthBagga for contribution.
-* FEATURE: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): add `optimize_repeated_binary_op_subexprs=1` query arg to [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query) for executing binary operator sides sequentially when they share the same optimized aggregate rollup result expression. This allows the second side to reuse rollup result cache populated by the first side. See [#10575](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10575). Thanks to @xhebox for the contribution.
-* FEATURE: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): Add the support of vmselect RPC to vmsingle so that single node can be queried by a vmselect from a vmcluster deployment. See [#4328](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4328), [#10926](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10926), and the [documentation](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#multi-tenancy).
-* FEATURE: [alerts](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/rules): add `InvalidAuthTokenRequestErrors` alerting rule to [vmauth alerts](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/rules/alerts-vmauth.yml). The new rule notifies when vmauth receives requests with invalid or missing auth tokens, which may indicate a client misconfiguration, expired token use, or brute-force attack. See [#11180](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11180).
-* FEATURE: [alerts](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/rules): add `AlertingRuleResultsApproachingLimit` and `RecordingRuleResultsApproachingLimit` alerting rules to [vmalert alerts](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/rules/alerts-vmalert.yml). These alerts notify when a rule's last evaluation samples exceed 90% of the configured group results limit. See [#11179](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11179). Thanks to @vinyas-bharadwaj for the contribution.
+* FEATURE: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): add `optimize_repeated_binary_op_subexprs=1` query arg to [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query) for executing binary operator sides sequentially when they share the same optimized aggregate rollup result expression. This allows the second side to reuse rollup result cache populated by the first side. See [#10575](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10575).
 * FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): prevent possible password brute-force attacks with an artificial 2-3 second delay as recommended by [OWASP](https://owasp.org/Top10/2025/A07_2025-Authentication_Failures). See [#11180](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11180).
-* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): allow log requests with missing or invalid auth tokens to [access log](https://docs.victoriametrics.com/victoriametrics/vmauth/#access-log). This is useful for identifying `remote_addr` IPs performing brute-force attacks. See [#11180](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11180).
-* FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): fall through to `unauthorized_user` when a [JWT token](https://docs.victoriametrics.com/victoriametrics/vmauth/#jwt-token-auth-proxy) has no `vm_access` claim and no `default_vm_access_claim` is configured. Previously, vmauth returned `401 Unauthorized` immediately in this case, which prevented `unauthorized_user` from handling such requests. See [#5740](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5740).
-* FEATURE: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): improve the selection algorithm of [buckets_limit](https://docs.victoriametrics.com/victoriametrics/metricsql/#buckets_limit) to remove consecutive empty buckets at the beginning and end to obtain more accurate min and max values. See [#10417](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10417).
-* FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): expose `vmalert_group_rule_results_limit` metric to indicate the number of alerts or recording results that a single rule within the group can produce. See [#11179](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11179). Thanks to @vinyas-bharadwaj for the contribution.
 
 * BUGFIX: all VictoriaMetrics components: cancel in-flight HTTP requests shortly before `-http.maxGracefulShutdownDuration` elapses during graceful shutdown, so they can drain and the shutdown completes cleanly within that window instead of timing out and exiting via `logger.Fatalf` -> `os.Exit`. This prevents skipping the storage flush and losing in-memory data when long-lived requests are in flight (such as VictoriaLogs live tailing). See [#1502](https://github.com/VictoriaMetrics/VictoriaLogs/issues/1502).
-* BUGFIX: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) and [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): properly check values range for the limits configured with flags `-maxLabelsPerTimeseries`, `-maxLabelNameLen` and `-maxLabelValueLen`. It must be in range `1..65535`. See [#11128](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11128).
 * BUGFIX: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fixes unexpected rare rerouting. See [#11162](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11162).
 * BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): propagate cache reset operation to `selectNode` when `/internal/resetRollupResultCache` is called. Previously, the propagation only happened when the `delete_series` API was called. See [#11112](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11112).
 * BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): fix possible unexpected increases in `rate_avg` and `rate_sum` if an out-of-order sample is ingested after the previous flush. See [#11140](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11140).
-* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): properly URL-encode `-vm-extra-label` values when building import requests, so special characters such as `&` don't get split into broken query parameters. See [#11144](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11144). Thanks to @immanuwell for contribution.
-* BUGFIX: [enterprise](https://docs.victoriametrics.com/enterprise/) [vmagent](https://docs.victoriametrics.com/vmagent/): ignore `enable.auto.offset.store` option in `kafka.consumer.topic.options`, since `vmagent` manages offset storage internally. Previously, setting this option could cause `vmagent` to stop committing Kafka messages. See [#11208](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11208).
 
 ## [v1.146.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.146.0)
 
@@ -97,6 +51,7 @@ Released at 2026-06-22
 * FEATURE: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): add `-vm-headers` and `-vm-bearer-token` flags for authenticating requests to the VictoriaMetrics import destination. The flags are available in `opentsdb`, `influx`, `remote-read`, `prometheus`, `mimir`, and `thanos` vmctl sub-commands. See [#8897](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/8897).
 * FEATURE: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): log calls to [/api/v1/admin/tsdb/delete_series](https://docs.victoriametrics.com/victoriametrics/url-examples/#apiv1admintsdbdelete_series) API handler. This should help to identify events of metrics deletion from the database. See [#11104](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11104).
 * FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add the `last` value to graph legend statistics. See [#10759](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10759).
+* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add support for [Monitoring Data eXchange (MDX)](https://docs.victoriametrics.com/victoriametrics/vmagent/#monitoring-data-exchange): the ability to route only metrics from VictoriaMetrics services to a specific `-remoteWrite.url`. MDX is useful for building monitoring-of-monitoring where one remote storage should receive the full metric stream and another should receive only VictoriaMetrics metrics. Enable per destination with `-remoteWrite.mdx.enable=true`. See [#10600](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10600).
 
 * BUGFIX: [enterprise](https://docs.victoriametrics.com/enterprise/) [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly expose metric `vm_retention_filters_partitions_scheduled_rows`. See [#11138](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11138)
 * BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): fix issue with producing aggregated samples with identical timestamps between flushes. See [#10808](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10808).
@@ -106,8 +61,8 @@ Released at 2026-06-22
 * BUGFIX: [vmrestore](https://docs.victoriametrics.com/victoriametrics/vmrestore/): disallow restoring parts outside the configured `-storageDataPath` directory. See [710c920d](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/710c920d6083327042a309e449fae4383617d817).
 * BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): correctly apply long tenant filters. Previously, such filters could be truncated, causing tenants to be matched incorrectly. See [#11096](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11096). Thanks for @fxrlv for the contribution.
 * BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fix corrupted metrics metadata when a response contains multiple rows. See [#11115](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11115). Thanks for @fxrlv for the contribution.
-* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): don't cache empty responses for tenant IDs discovery during [multitenant queries](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#multitenant-reads). This problem was visible during integration tests when multitenant queries were executed before the first ingestion happened. See [#10982](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10982)
 * BUGFIX: [vmbackup](https://docs.victoriametrics.com/vmbackup/), [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): do not fail backup list if directory is absent while using `fs://` destination to align with other protocols. See [6c3c548](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/6c3c548ddb0385b749e731f52276f130e2a4e4a8)
+* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): don't cache empty responses for tenant IDs discovery during [multitenant queries](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#multitenant-reads). This problem was visible during integration tests when multitenant queries were executed before the first ingestion happened. See [#10982](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10982)
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly escape `metricFamilyName` at metrics metadata response. See [#11129](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11129). Thanks for @fxrlv for the contribution.
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): prevent more cases of panic during directory deletion on `NFS`-based mounts. See [#11060](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11060).
 
@@ -132,9 +87,9 @@ Released at 2026-06-08
 * BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly calculate number of loaded users to be printed in startup log. Previously, it was only accounting for static users and skipped JWT configuration entries. See [#11050](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11050/).
 * BUGFIX: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): `integrate()` no longer extrapolates the last sample's value past the end of the time series. Previously, querying `integrate(metric[1h])` at a timestamp where the series had already ended would keep accruing area as if the last value continued indefinitely, producing values much larger than the true integral. See [#9474](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9474). Thanks to @wtfashwin for contribution.
 * BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): avoid returning HTTP 503 for queries with partial results when a storage group is unavailable and `-search.denyPartialResponse` is disabled. See [#11009](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11009). Thanks to @fxrlv for the contribution.
-* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fix intermittent `write: connection timed out` errors caused by silently dropped TCP connections being reused from the connection pool. See [#10735](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10735#issuecomment-4535832301).
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly escape `utf-8` label names for [/federate](https://docs.victoriametrics.com/victoriametrics/#federation) API requests. See [#10968](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10968).
 * BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): persist the `Disable deduplication` toggle under its own local storage key. Before this fix, the toggle state was lost after reload and could overwrite the `Compact view` table setting. See [#11004](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11004). Thanks to @immanuwell for the contribution.
+* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fix intermittent `write: connection timed out` errors caused by silently dropped TCP connections being reused from the connection pool. See [#10735](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10735#issuecomment-4535832301).
 
 ## [v1.144.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.144.0)
 
@@ -142,28 +97,29 @@ Released at 2026-05-22
 
 * FEATURE: all VictoriaMetrics components: improve logging for the `-memory.allowedBytes` flag to warn about excessively low value (less than 1MB). See issue [#10935](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10935).
 * FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): add `basicAuth.usernameFile` command-line flags for reading basic auth username from a file, similar to the existing `basicAuth.passwordFile`. The file is re-read every second. See [#9436](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9436). Thanks to @kimjune01 for the contribution.
-* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): drain in-memory remote write queue on shutdown within the 5-second grace period before falling back to persisting blocks to disk. See [#9996](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9996)
+* FEATURE: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): add `clusternative.tls` `vminsert` configuration flags for [multi-level cluster setups](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multi-level-cluster-setup). See [#10958](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10958).
 * FEATURE: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) and [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): add `-opentelemetry.labelNameUnderscoreSanitization` command-line flag to control whether to enable prepending of `key` to labels starting with `_` when `-opentelemetry.usePrometheusNaming` is enabled. See [OpenTelemetry](https://docs.victoriametrics.com/victoriametrics/integrations/opentelemetry/) docs and [#9663](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9663). Thanks to @andriibeee for the contribution.
 * FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): improve the [Top Queries](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#top-queries) table UI. Duration columns now display human-readable values (e.g. `1.23s`) instead of raw seconds, memory column shows human-readable sizes (e.g. `1.23 MB`), instant queries are labeled as `instant` instead of empty string, and column headers now show tooltips with descriptions. See [#10790](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10790).
-* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): display `null` values on `Raw Query` chart. `null` values can be actual `NaN` or `null` values exposed by the exporter, or [stale markers](https://docs.victoriametrics.com/victoriametrics/vmagent/#prometheus-staleness-markers). Before, vmui Raw Query was silently dropping non-numeric values. Displaying such values on the chart could improve the debugging experience. See [#10986](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10986).
+* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): drain in-memory remote write queue on shutdown within the 5-second grace period before falling back to persisting blocks to disk. See [#9996](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9996)
 * FEATURE: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): Improve [slowness-based rerouting](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#slowness-based-re-routing) to prevent rerouting storms under high cluster load. Previously, rerouting could cascade across storage nodes when the whole cluster was saturated, making the situation worse. Now rerouting only activates when the cluster p90 saturation is below 60%, and the slowest node is more than 20% slower than p90. See [#10876](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10876).
 * FEATURE: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): add `{{.MetricsAccountID}}` and `{{.MetricsProjectID}}` [JWT claim placeholders](https://docs.victoriametrics.com/victoriametrics/vmauth/#jwt-claim-based-request-templating) for use in `headers` and `url_prefix` config fields. Previously, only the combined `{{.MetricsTenant}}` (`accountID:projectID`) JWT placeholder was supported, making it impossible to configure [multitenancy via headers](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multitenancy-via-headers). See [#10927](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10927). Thanks to @Vinayak9769 for the contribution.
+* FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): display `null` values on `Raw Query` chart. `null` values can be actual `NaN` or `null` values exposed by the exporter, or [stale markers](https://docs.victoriametrics.com/victoriametrics/vmagent/#prometheus-staleness-markers). Before, vmui Raw Query was silently dropping non-numeric values. Displaying such values on the chart could improve the debugging experience. See [#10986](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10986).
 
 * BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): stop emitting stale values for `quantiles(...)` outputs when a time series has no samples during the current aggregation interval. See [#10918](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10918). Thanks to @alexei38 for the contribution.
 * BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): extend delay on aggregation windows flush by the biggest lag among pushed samples. Before, the delay was calculated as 95th percentile across samples, which could underrepresent outliers and reject them from aggregation as "too old". See [#10402](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10402).
 * BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fix a bug in [cardinality limiters](https://docs.victoriametrics.com/victoriametrics/vmagent/#cardinality-limiter) where series with different labels, like `{a="bc"}` and `{ab="c"}`, could be incorrectly treated as identical and dropped. See [#10937](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10937).
 * BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): hide values passed to `-remoteWrite.headers` in startup logs, `/metrics`, and `/flags`, since they can contain sensitive HTTP headers such as `Authorization` and API keys.
 * BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): hide values passed to `-remoteWrite.proxyURL` in startup logs, `/metrics`, and `/flags`, since they can contain sensitive credentials.
-* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): return error on startup if `-remoteWrite.disableOnDiskQueue` is not configured uniformly across all `-remoteWrite.url` targets when `-remoteWrite.shardByURL` is enabled. Either all targets must have it enabled or all must have it disabled. See [#10507](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10507).
-* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): prevent unintentional rerouting of samples to other sharding targets when one of the `-remoteWrite.url` targets with `-remoteWrite.disableOnDiskQueue` becomes blocked. Previously this could break the sharding guarantee by sending samples to wrong targets instead of dropping or retrying them. See [#10507](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10507).
 * BUGFIX: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): hide values passed to `-remoteWrite.headers`,`remoteRead.headers`, `datasource.headers` and `notifier.headers` in startup logs, `/metrics`, and `/flags`, since they can contain sensitive HTTP headers such as `Authorization` and API keys.
 * BUGFIX: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly establish [mtls](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#mtls-protection) connection between vmstorage and vminsert. Regression was introduced in v1.130.0 release for the enterprise version of vmstorage. See [#10972](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10972).
 * BUGFIX: [vmrestore](https://docs.victoriametrics.com/victoriametrics/vmrestore/): fix a bug where specifying `-storageDataPath` with a trailing slash could cause `vmrestore` to panic. See [#10823](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10823). Thanks to @utafrali for the contribution.
+* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): prevent unintentional rerouting of samples to other sharding targets when one of the `-remoteWrite.url` targets with `-remoteWrite.disableOnDiskQueue` becomes blocked. Previously this could break the sharding guarantee by sending samples to wrong targets instead of dropping or retrying them. See [#10507](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10507).
+* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): return error on startup if `-remoteWrite.disableOnDiskQueue` is not configured uniformly across all `-remoteWrite.url` targets when `-remoteWrite.shardByURL` is enabled. Either all targets must have it enabled or all must have it disabled. See [#10507](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10507).
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): hide values passed to `vmalert.proxyURL` in startup logs, `/metrics`, and `/flags`, since they can contain sensitive HTTP headers such as `Authorization` and API keys.
-* BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): `-denyQueriesOutsideRetention` now also rejects queries whose end time is beyond `-futureRetention`. See [#10879](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10879).
 * BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): preserve exact series values in graph tooltips instead of rounding them by significant digits. See [#10952](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10952).
-* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add missing `__timestamp__` and `__value__` columns to CSV exported from the table view on the Query tab. See [#10975](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10975).
 * BUGFIX: all VictoriaMetrics components: fix int64 overflow when parsing [timestamp parameters](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#timestamp-formats) with relative durations. See [#10880](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10880).
+* BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): `-denyQueriesOutsideRetention` now also rejects queries whose end time is beyond `-futureRetention`. See [#10879](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10879).
+* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add missing `__timestamp__` and `__value__` columns to CSV exported from the table view on the Query tab. See [#10975](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10975).
 
 ## [v1.143.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.143.0)
 
@@ -173,10 +129,10 @@ Released at 2026-05-08
 
 * FEATURE: all VictoriaMetrics components: suppress TCP health check errors when `-tls` flag is set. See [#10538](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10538).
 * FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/) and [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): add `__meta_hetzner_robot_datacenter` label for `robot` role in [hetzner_sd_configs](https://docs.victoriametrics.com/victoriametrics/sd_configs/#hetzner_sd_configs). See [#10909](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10909). Thanks to @juliusrickert for contribution.
-* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/), [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): introduce the `vm_fs_info` metric. It exposes the filesystem type (e.g., ext4, xfs, nfs) used for `-*Path` related flags. See [#10482](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10482).
-* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/), [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): add support for [Prometheus native histogram](https://prometheus.io/docs/specs/native_histograms/) during ingestion. See [#10743](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10743).
 * FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): add `-rule.stripFilePath` to support stripping rule file paths in logs and all API responses, including /metrics. See [#5625](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5625).
 * FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): add `formatTime` template function for formatting a Unix timestamp using the provided layout. For example, `{{ now | formatTime "2006-01-02T15:04:05Z07:00" }}` returns the current time in RFC3339 format. See issue [#10624](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10624). Thanks to @andriibeee for the contribution.
+* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/), [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): add support for [Prometheus native histogram](https://prometheus.io/docs/specs/native_histograms/) during ingestion. See [#10743](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10743).
+* FEATURE: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/), [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/), `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): introduce the `vm_fs_info` metric. It exposes the filesystem type (e.g., ext4, xfs, nfs) used for `-*Path` related flags. See [#10482](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10482).
 * FEATURE: [dashboards/vmagent](https://grafana.com/grafana/dashboards/12683): add `Kafka (Enterprise)` row with panels for monitoring traffic (bytes), messages in/out, producer and consumer errors. See [#10728](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10728).
 * FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): support sending data to the configured `-remoteWrite.url` via [VictoriaMetrics remote write protocol](https://docs.victoriametrics.com/victoriametrics/vmagent/#victoriametrics-remote-write-protocol). See [#10929](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10929).
 
@@ -273,7 +229,7 @@ Released at 2026-03-27
 **Update Note 1:** [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/), [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): a bug in [OpenTelemetry](https://docs.victoriametrics.com/victoriametrics/integrations/opentelemetry/) parsing caused the `Unit` suffix of the previously parsed metric to be incorrectly applied to subsequent metrics that have no `Unit` field, when `-opentelemetry.usePrometheusNaming` is enabled. For example, if `http_requests` has `Unit: seconds` and the next metric `cpu_usage` has no `Unit`, `cpu_usage` would be ingested as `cpu_usage_seconds`. The bug was introduced in [v1.132.0](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/docs/victoriametrics/changelog/CHANGELOG_2025.md#v11320). See [#10889](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10889).
 
 * FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): show `seriesCountByMetricName` table when a label is in focus in the [Cardinality Explorer](https://docs.victoriametrics.com/victoriametrics/#cardinality-explorer). See [#10630](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10630). Thanks to @Roshan1299 for the contribution.
-* FEATURE: [dashboards/metrics-explorer](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards/metrics-explorer.json): add a new dashboard for exploring stored metrics based on [Caridnality Explorer](https://docs.victoriametrics.com/victoriametrics/#cardinality-explorer) and [ingested metrics usage API](https://docs.victoriametrics.com/victoriametrics/#track-ingested-metrics-usage). The dashboard requires [Infinity Grafana plugin](https://grafana.com/grafana/plugins/yesoreyeram-infinity-datasource/) to be installed. See [#10617](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10617) for details.
+* FEATURE: [dashboards/unused-metrics](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards/unused-metrics.json): add a new dashboard for exploring stored metrics based on [Caridnality Explorer](https://docs.victoriametrics.com/victoriametrics/#cardinality-explorer) and [ingested metrics usage API](https://docs.victoriametrics.com/victoriametrics/#track-ingested-metrics-usage). The dashboard requires [Infinity Grafana plugin](https://grafana.com/grafana/plugins/yesoreyeram-infinity-datasource/) to be installed. See [#10617](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10617) for details.
 * FEATURE: [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/): add `search` parameter and pagination support in `/api/v1/rules` API. See [#10046](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10046).
 * FEATURE: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): add default pagination to improve the Alerting Rules page experience when vmalert loads thousands of rules. See [#10046](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10046).
 * FEATURE: all VictoriaMetrics components: log a warning when an IPv6 listen address (e.g. `[::]:6969`) is specified but `-enableTCP6` is not set. Previously, the server silently listened on IPv4 only. See [#6858](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6858). Thanks to @andriibeee for the contribution.
@@ -287,7 +243,7 @@ Released at 2026-03-27
 * BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix autocomplete dropdown not closing on the Raw Query page. See [#10665](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10665)
 * BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): properly handle JWKS keys per [RFC 7517](https://datatracker.ietf.org/doc/html/rfc7517#section-4.2) during [OIDC discovery](https://docs.victoriametrics.com/victoriametrics/vmauth/#oidc-discovery): skip keys with `use=enc`, reject `use=sig` keys with unsupported `alg`, and warn-skip keys with empty `use` that have unsupported `alg`. See [#10663](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10663). Thanks to @andriibeee for the contribution.
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): enforce `datasource_type=prometheus` when [proxying](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#vmalert) Grafana requests to [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/). Grafana supports only `prometheus` and `loki` alerts. Without this fix, Grafana shows `Error loading alerts` when non-Prometheus alert types are returned. See [victoriametrics-datasource#329](https://github.com/VictoriaMetrics/victoriametrics-datasource/issues/329).
-* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): stop logging `error`-level messages when scraping targets that expose OpenMetrics `info`, `gaugehistogram`, `stateset`, or `unknown` metric types. These are valid [OpenMetrics](https://github.com/prometheus/OpenMetrics/blob/main/specification/OpenMetrics.md) types and should be parsed without error. See [#10685](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10685). Thanks to @tsarna for the contribution.
+* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): stop logging `error`-level messages when scraping targets that expose OpenMetrics `info`, `gaugehistogram`, `stateset`, or `unknown` metric types. These are valid [OpenMetrics](https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md) types and should be parsed without error. See [#10685](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10685). Thanks to @tsarna for the contribution.
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): prevent panic during directory deletion on `NFS`-based mounts. The bug was introduced in [83da33d8](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/83da33d8cfe8352fd0022d05a8b6346ebb48420d) and included in [v1.123.0](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/docs/victoriametrics/changelog/CHANGELOG_2025.md#v11230). See [#9842](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9842).
 
 ## [v1.138.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.138.0)
@@ -349,45 +305,6 @@ It enables back `Discovered targets` debug UI by default.
 * BUGFIX: `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly apply `extra_filters[]` filter when querying `vm_account_id` or `vm_project_id` labels via [multitenant](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#multitenancy) request for `/api/v1/label/…/values` API. Before, `extra_filters` was ignored. See [#10503](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10503).
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): revert the use of rollup result cache for [instant queries](https://docs.victoriametrics.com/keyConcepts.html#instant-query) that contain [`rate`](https://docs.victoriametrics.com/MetricsQL.html#rate) function with a lookbehind window larger than `-search.minWindowForInstantRollupOptimization`. The cache usage was removed since [v1.132.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.132.0). See [#10098](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10098#issuecomment-3895011084) for more details.
 
-## [v1.136.14](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.136.14)
-
-Released at 2026-07-17
-
-**v1.136.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
-All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
-The v1.136.x line will be supported for at least 12 months since [v1.136.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11360) release**
-
-* SECURITY: upgrade Go builder from Go1.26.4 to Go1.26.5. See [the list of issues addressed in Go1.26.5](https://github.com/golang/go/issues?q=milestone%3AGo1.26.5%20label%3ACherryPickApproved).
-
-* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): flush pending persistent queue data to chunk file before updating the metadata. This prevents the metadata writer offset from getting ahead of the chunk file size and avoids losing the persistent queue after an unclean shutdown. See [#11192](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11192).
-* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): fix a possible data race when processing OpenTelemetry metadata. See [#11238](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11238). Thanks to @nevgeny for contribution.
-* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): atomically write persistent queue metainfo to prevent possible file corruption on ungraceful shutdown. See [#11192](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11192).
-* BUGFIX: [vmbackup](https://docs.victoriametrics.com/victoriametrics/vmbackup/) and [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): retry S3 requests failing with `HTTP 429` status code or `TooManyRequests` error code. Previously such requests were not retried, so a short burst of rate limiting would fail the whole backup. See [#11218](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11218). Thanks to @gautamrizwani for contribution.
-* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): properly apply limit to metrics metadata response. See [#11139](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11139).
-* BUGFIX: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): Now drops metadata blocks when communicating with vmstorage nodes over the legacy RPC protocol. To avoid this limitation, upgrade `vmstorage` to a version that supports the new RPC protocol (>= [v1.137.0](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/docs/victoriametrics/changelog/CHANGELOG.md#v11370)). See [#11146](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11146).
-* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): keep only one header navigation dropdown (`Explore`, `Tools`) open at a time. Previously, hovering across two dropdowns could briefly leave both open due to the close delay. See [#11224](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11224). Thanks to @antedotee for contribution.
-* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): preserve newline formatting in alert and rule annotations on the Alerting page. See [#11171](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11171).
-* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): hide `Total metric names` stats on [Cardinality Explorer](https://docs.victoriametrics.com/victoriametrics/#cardinality-explorer) page when user selects a specific metric or label to focus. See [#11154](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11154) for details. Thanks to @lghuy05 for the contribution.
-* BUGFIX: [vmauth](https://docs.victoriametrics.com/victoriametrics/vmauth/): return `408 Request Timeout` instead of `400 Bad Request` when the request body isn't received within `-maxQueueDuration`. This prevents `vmagent` from incorrectly downgrading the remote write protocol and dropping data when `vmauth` is used as a proxy for a remote write endpoint. See [#11272](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11272).
-
-## [v1.136.13](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.136.13)
-
-Released at 2026-07-03
-
-**v1.136.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
-All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
-The v1.136.x line will be supported for at least 12 months since [v1.136.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11360) release**
-
-* SECURITY: upgrade base docker image (Alpine) from 3.23.4 to 3.24.1. See [Alpine 3.24.1 release notes](https://www.alpinelinux.org/posts/Alpine-3.24.1-released.html).
-
-* BUGFIX: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) and [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): properly check values range for the limits configured with flags `-maxLabelsPerTimeseries`, `-maxLabelNameLen` and `-maxLabelValueLen`. It must be in range `1..65535`. See [#11128](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11128).
-* BUGFIX: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): fixes unexpected rare rerouting. See [#11162](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11162).
-* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): propagate cache reset operation to `selectNode` when `/internal/resetRollupResultCache` is called. Previously, the propagation only happened when the `delete_series` API was called. See [#11112](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11112).
-* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): fix possible unexpected increases in `rate_avg` and `rate_sum` if an out-of-order sample is ingested after the previous flush. See [#11140](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11140).
-* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): properly URL-encode `-vm-extra-label` values when building import requests, so special characters such as `&` don't get split into broken query parameters. See [#11144](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11144). Thanks to @immanuwell for contribution.
-* BUGFIX: [enterprise](https://docs.victoriametrics.com/enterprise/) [vmagent](https://docs.victoriametrics.com/vmagent/): ignore `enable.auto.offset.store` option in `kafka.consumer.topic.options`, since `vmagent` manages offset storage internally. Previously, setting this option could cause `vmagent` to stop committing Kafka messages. See [#11208](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11208).
-* BUGFIX: all VictoriaMetrics components: cancel in-flight HTTP requests shortly before `-http.maxGracefulShutdownDuration` elapses during graceful shutdown, so they can drain and the shutdown completes cleanly within that window instead of timing out and exiting via `logger.Fatalf` -> `os.Exit`. This prevents skipping the storage flush and losing in-memory data when long-lived requests are in flight (such as VictoriaLogs live tailing). See [#1502](https://github.com/VictoriaMetrics/VictoriaLogs/issues/1502).
-
 ## [v1.136.12](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.136.12)
 
 Released at 2026-06-19
@@ -560,7 +477,7 @@ The v1.136.x line will be supported for at least 12 months since [v1.136.0](http
 * BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): retry RPC by dialing a new connection instead of reusing a pooled one when the previous attempt fails with `io.EOF`, `broken pipe` or `reset by peer`. This reduces query failures caused by stale connections to restarted vmstorage nodes. See [#10314](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10314)
 * BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): fix autocomplete dropdown not closing on the Raw Query page. See [#10665](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/10665)
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): enforce `datasource_type=prometheus` when [proxying](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/#vmalert) Grafana requests to [vmalert](https://docs.victoriametrics.com/victoriametrics/vmalert/). Grafana supports only `prometheus` and `loki` alerts. Without this fix, Grafana shows `Error loading alerts` when non-Prometheus alert types are returned. See [victoriametrics-datasource#329](https://github.com/VictoriaMetrics/victoriametrics-datasource/issues/329).
-* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): stop logging `error`-level messages when scraping targets that expose OpenMetrics `info`, `gaugehistogram`, `stateset`, or `unknown` metric types. These are valid [OpenMetrics](https://github.com/prometheus/OpenMetrics/blob/main/specification/OpenMetrics.md) types and should be parsed without error. See [#10685](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10685). Thanks to @tsarna for the contribution.
+* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): stop logging `error`-level messages when scraping targets that expose OpenMetrics `info`, `gaugehistogram`, `stateset`, or `unknown` metric types. These are valid [OpenMetrics](https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md) types and should be parsed without error. See [#10685](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10685). Thanks to @tsarna for the contribution.
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): prevent panic during directory deletion on `NFS`-based mounts. The bug was introduced in [83da33d8](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/83da33d8cfe8352fd0022d05a8b6346ebb48420d) and included in [v1.123.0](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/docs/victoriametrics/changelog/CHANGELOG_2025.md#v11230). See [#9842](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9842).
 
 ## [v1.136.2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.136.2)
@@ -768,34 +685,6 @@ See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/ch
 
 See changes [here](https://docs.victoriametrics.com/victoriametrics/changelog/changelog_2025/#v11230)
 
-## [v1.122.27](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.27)
-
-Released at 2026-07-17
-
-**v1.122.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
-All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
-The v1.122.x line will be supported for at least 12 months since [v1.122.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11220) release**
-
-* BUGFIX: [vmagent](https://docs.victoriametrics.com/victoriametrics/vmagent/): flush pending persistent queue data to chunk file before updating the metadata. This prevents the metadata writer offset from getting ahead of the chunk file size and avoids losing the persistent queue after an unclean shutdown. See [#11192](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11192).
-* BUGFIX: [vmbackup](https://docs.victoriametrics.com/victoriametrics/vmbackup/) and [vmbackupmanager](https://docs.victoriametrics.com/victoriametrics/vmbackupmanager/): retry S3 requests failing with `HTTP 429` status code or `TooManyRequests` error code. Previously such requests were not retried, so a short burst of rate limiting would fail the whole backup. See [#11218](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11218). Thanks to @gautamrizwani for contribution.
-* BUGFIX: [vmui](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#vmui): hide `Total metric names` stats on [Cardinality Explorer](https://docs.victoriametrics.com/victoriametrics/#cardinality-explorer) page when user selects a specific metric or label to focus. See [#11154](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11154) for details. Thanks to @lghuy05 for the contribution.
-
-## [v1.122.26](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.26)
-
-Released at 2026-07-03
-
-**v1.122.x is a line of [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/victoriametrics/enterprise/).
-All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
-The v1.122.x line will be supported for at least 12 months since [v1.122.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11220) release**
-
-* SECURITY: upgrade base docker image (Alpine) from 3.23.4 to 3.24.1. See [Alpine 3.24.1 release notes](https://www.alpinelinux.org/posts/Alpine-3.24.1-released.html).
-
-* BUGFIX: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) and [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): properly check values range for the limits configured with flags `-maxLabelsPerTimeseries`, `-maxLabelNameLen` and `-maxLabelValueLen`. It must be in range `1..65535`. See [#11128](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11128).
-* BUGFIX: [stream aggregation](https://docs.victoriametrics.com/victoriametrics/stream-aggregation/): fix possible unexpected increases in `rate_avg` and `rate_sum` if an out-of-order sample is ingested after the previous flush. See [#11140](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11140).
-* BUGFIX: `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/): propagate cache reset operation to `selectNode` when `/internal/resetRollupResultCache` is called. Previously, the propagation only happened when the `delete_series` API was called. See [#11112](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/11112).
-* BUGFIX: [vmctl](https://docs.victoriametrics.com/victoriametrics/vmctl/): properly URL-encode `-vm-extra-label` values when building import requests, so special characters such as `&` don't get split into broken query parameters. See [#11144](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/11144). Thanks to @immanuwell for contribution.
-* BUGFIX: all VictoriaMetrics components: cancel in-flight HTTP requests shortly before `-http.maxGracefulShutdownDuration` elapses during graceful shutdown, so they can drain and the shutdown completes cleanly within that window instead of timing out and exiting via `logger.Fatalf` -> `os.Exit`. This prevents skipping the storage flush and losing in-memory data when long-lived requests are in flight (such as VictoriaLogs live tailing). See [#1502](https://github.com/VictoriaMetrics/VictoriaLogs/issues/1502).
-
 ## [v1.122.25](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.122.25)
 
 Released at 2026-06-19
@@ -956,7 +845,7 @@ Released at 2026-02-13
 All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
 The v1.122.x line will be supported for at least 12 months since [v1.122.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11220) release**
 
-* SECURITY: upgrade base docker image (Alpine) from 3.23.2 to 3.23.3. See [Alpine 3.23.3 release notes](https://www.alpinelinux.org/posts/Alpine-3.20.9-3.21.6-3.22.3-3.23.3-released.html).
+* SECURITY: upgrade base docker image (Alpine) from 3.23.2 to 3.23.3. See [Alpine 3.23.3 release notes](https://www.alpinelinux.org/posts/Alpine-3.23.3-released.html).
 * SECURITY: upgrade Go builder from Go1.24.12 to Go1.24.13. See [the list of issues addressed in Go1.24.13](https://github.com/golang/go/issues?q=milestone%3AGo1.24.13+label%3ACherryPickApproved).
 
 * BUGFIX: all VictoriaMetrics components: respect default http client proxy env variables (`HTTP_PROXY`, `HTTPS_PROXY`, `NO_PROXY`). See [#10385](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10385). Thanks to @zane-deg for the contribution.
@@ -1118,7 +1007,7 @@ Released at 2026-02-13
 All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
 The v1.110.x line will be supported for at least 12 months since [v1.110.0](https://docs.victoriametrics.com/victoriametrics/changelog/#v11100) release**
 
-* SECURITY: upgrade base docker image (Alpine) from 3.23.2 to 3.23.3. See [Alpine 3.23.3 release notes](https://www.alpinelinux.org/posts/Alpine-3.20.9-3.21.6-3.22.3-3.23.3-released.html).
+* SECURITY: upgrade base docker image (Alpine) from 3.23.2 to 3.23.3. See [Alpine 3.23.3 release notes](https://www.alpinelinux.org/posts/Alpine-3.23.3-released.html).
 * SECURITY: upgrade Go builder from Go1.24.12 to Go1.24.13. See [the list of issues addressed in Go1.24.13](https://github.com/golang/go/issues?q=milestone%3AGo1.24.13+label%3ACherryPickApproved).
 
 * BUGFIX: VictoriaMetrics [enterprise](https://docs.victoriametrics.com/enterprise/) [vmagent](https://docs.victoriametrics.com/vmagent/) and [vmsingle](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/): introduce time‑based manual offset commit for [kafka consumer](https://docs.victoriametrics.com/victoriametrics/integrations/kafka/) to fix performance degradation with enabled manual commit. After this change, the consumer will commit partition offsets in batch per second to avoid high commit QPS on the Kafka broker. It's no longer recommended to set `enable.auto.commit=true` in `-kafka.consumer.topic.options`, as `vmagent` will automatically manage it. See [#10395](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10395).

docs/victoriametrics/changelog/CHANGELOG_2020.md

@@ -37,7 +37,7 @@ Released at 2020-12-19
 
 * BUGFIX: vmalert: properly populate template variables. This has been broken in v1.50.0. See <https://github.com/VictoriaMetrics/VictoriaMetrics/issues/974>
 * BUGFIX: properly parse negative combined duration in MetricsQL such as `-1h3m4s`. It must be parsed as `-(1h + 3m + 4s)`. Previously it was parsed as `-1h + 3m + 4s`.
-* BUGFIX: properly parse lines in [Prometheus exposition format](https://prometheus.io/docs/instrumenting/exposition_formats/#prometheus-text-format) and in [OpenMetrics format](https://github.com/prometheus/OpenMetrics/blob/main/specification/OpenMetrics.md) with whitespace after the timestamp. For example, `foo 123 456 ## some comment here`. See <https://github.com/VictoriaMetrics/VictoriaMetrics/pull/970>
+* BUGFIX: properly parse lines in [Prometheus exposition format](https://github.com/prometheus/docs/blob/master/content/docs/instrumenting/exposition_formats.md) and in [OpenMetrics format](https://github.com/OpenObservability/OpenMetrics/blob/master/specification/OpenMetrics.md) with whitespace after the timestamp. For example, `foo 123 456 ## some comment here`. See <https://github.com/VictoriaMetrics/VictoriaMetrics/pull/970>
 
 ## [v1.50.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.50.1)
 
@@ -86,7 +86,7 @@ Released at 2020-12-05
 * FEATURE: upgrade Go builder from v1.15.5 to v1.15.6 . This fixes [issues found in Go since v1.15.5](https://github.com/golang/go/issues?q=milestone%3AGo1.15.6+label%3ACherryPickApproved).
 
 * BUGFIX: properly parse timestamps in OpenMetrics format - they are exposed as floating-point number in seconds instead of integer milliseconds
-  unlike in Prometheus exposition format. See [the docs](https://github.com/prometheus/OpenMetrics/blob/main/specification/OpenMetrics.md#timestamps).
+  unlike in Prometheus exposition format. See [the docs](https://github.com/OpenObservability/OpenMetrics/blob/master/specification/OpenMetrics.md#timestamps).
 * BUGFIX: return `nan` for `a >bool b` query when `a` equals to `nan` like Prometheus does. Previously `0` was returned in this case. This applies to any comparison operation
   with `bool` modifier. See [these docs](https://prometheus.io/docs/prometheus/latest/querying/operators/#comparison-binary-operators) for details.
 * BUGFIX: properly parse hex numbers in MetricsQL. Previously hex numbers with non-decimal digits such as `0x3b` couldn't be parsed.
@@ -119,8 +119,8 @@ Released at 2020-11-26
 * FEATURE: log metric name plus all its labels when the metric timestamp is out of the configured retention. This should simplify detecting the source of metrics with unexpected timestamps.
 * FEATURE: add `-dryRun` command-line flag to single-node VictoriaMetrics in order to check config file pointed by `-promscrape.config`.
 
-* BUGFIX: properly parse Prometheus metrics with [exemplars](https://github.com/prometheus/OpenMetrics/blob/main/specification/OpenMetrics.md#exemplars) such as `foo 123 ## {bar="baz"} 1`.
-* BUGFIX: properly parse "infinity" values in [OpenMetrics format](https://github.com/prometheus/OpenMetrics/blob/main/specification/OpenMetrics.md#abnf).
+* BUGFIX: properly parse Prometheus metrics with [exemplars](https://github.com/OpenObservability/OpenMetrics/blob/master/OpenMetrics.md#exemplars-1) such as `foo 123 ## {bar="baz"} 1`.
+* BUGFIX: properly parse "infinity" values in [OpenMetrics format](https://github.com/OpenObservability/OpenMetrics/blob/master/OpenMetrics.md#abnf).
   See <https://github.com/VictoriaMetrics/VictoriaMetrics/issues/924>
 
 ## [v1.47.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.47.0)

docs/victoriametrics/changelog/CHANGELOG_2021.md

@@ -275,7 +275,7 @@ Released at 2021-07-15
 * FEATURE: support durations anywhere in [MetricsQL queries](https://docs.victoriametrics.com/victoriametrics/metricsql/). For example, `sum_over_time(m[1h]) / 1h` is a valid query, which is equivalent to `sum_over_time(m[1h]) / 3600`.
 * FEATURE: support durations without suffixes in [MetricsQL queries](https://docs.victoriametrics.com/victoriametrics/metricsql/). For example, `rate(m[3600])` is a valid query, which is equivalent to `rate(m[1h])`.
 * FEATURE: export `vmselect_request_duration_seconds` and `vminsert_request_duration_seconds` [VictoriaMetrics histograms](https://valyala.medium.com/improving-histogram-usability-for-prometheus-and-grafana-bc7e5df0e350) at `/metrics` page. These histograms can be used for determining latency distribution and SLI/SLO for the served requests. For example, the following query would return the percent of queries that took less than 500ms during the last hour: `histogram_share(500ms, sum(rate(vmselect_request_duration_seconds_bucket[1h])) by (vmrange))`.
-* FEATURE: vmagent: dynamically reload client TLS certificates from disk on every [mTLS connection](https://developers.cloudflare.com/cloudflare-one/access-controls/service-credentials/mutual-tls-authentication/). This should allow using `vmagent` with [Istio service mesh](https://istio.io/latest/about/service-mesh/). See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1420).
+* FEATURE: vmagent: dynamically reload client TLS certificates from disk on every [mTLS connection](https://developers.cloudflare.com/cloudflare-one/identity/devices/mutual-tls-authentication). This should allow using `vmagent` with [Istio service mesh](https://istio.io/latest/about/service-mesh/). See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1420).
 * FEATURE: log http request path plus all the query args on errors during request processing. Previously only http request path was logged without query args, so it could be hard debugging such errors.
 * FEATURE: add `is_set` label to `flag` metrics. This allows determining explicitly set command-line flags with the query `flag{is_set="true"}`.
 * FEATURE: add ability to remove caches stored inside `<-storageDataPath>/cache` on startup if `reset_cache_on_startup` file is present there. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1447).
@@ -590,7 +590,7 @@ Released at 2021-01-13
 * FEATURE: add ability to pass multiple labels to `sort_by_label()` and `sort_by_label_desc()` functions. See <https://github.com/VictoriaMetrics/VictoriaMetrics/issues/992> .
 * FEATURE: enforce at least TLS v1.2 when accepting HTTPS requests if `-tls`, `-tlsCertFile` and `-tlsKeyFile` command-line flags are set, because older TLS protocols such as v1.0 and v1.1 have been deprecated due to security vulnerabilities.
 * FEATURE: support `extra_label` query arg for all HTTP-based [data ingestion protocols](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-import-time-series-data). This query arg can be used for specifying extra labels which should be added for the ingested data.
-* FEATURE: vmbackup: increase backup chunk size from 128MB to 1GB. This should reduce the number of Object storage API calls during backups by 8x. This may also reduce costs, since object storage API calls usually have non-zero costs. See <https://aws.amazon.com/s3/pricing/> and <https://cloud.google.com/storage/pricing#operation-charges> .
+* FEATURE: vmbackup: increase backup chunk size from 128MB to 1GB. This should reduce the number of Object storage API calls during backups by 8x. This may also reduce costs, since object storage API calls usually have non-zero costs. See <https://aws.amazon.com/s3/pricing/> and <https://cloud.google.com/storage/pricing#operations-pricing> .
 
 * BUGFIX: properly parse escaped unicode chars in MetricsQL metric names, label names and function names. See <https://github.com/VictoriaMetrics/VictoriaMetrics/issues/990>
 * BUGFIX: override user-provided labels with labels set in `extra_label` query args during data ingestion over HTTP-based protocols.

docs/victoriametrics/changelog/CHANGELOG_2022.md

@@ -978,7 +978,7 @@ Released at 2022-02-14
 
 Released at 2022-01-18
 
-* FEATURE: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): add support for `@` modifier, which is enabled by default in Prometheus starting from [Prometheus v2.33.0](https://github.com/prometheus/prometheus/pull/10121). See [these docs](https://prometheus.io/docs/prometheus/latest/querying/basics/#-modifier) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1348). VictoriaMetrics extends `@` modifier with the following additional features:
+* FEATURE: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): add support for `@` modifier, which is enabled by default in Prometheus starting from [Prometheus v2.33.0](https://github.com/prometheus/prometheus/pull/10121). See [these docs](https://prometheus.io/docs/prometheus/latest/querying/basics/#modifier) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1348). VictoriaMetrics extends `@` modifier with the following additional features:
   * It can contain arbitrary expression. For example, `foo @ (end() - 1h)` would return `foo` value at `end - 1 hour` timestamp on the selected time range `[start ... end]`. Another example: `foo @ (now() - 10m)` would return `foo` value 10 minutes ago from the current time.
   * It can be put everywhere in the query. For example, `sum(foo) @ start()` would calculate `sum(foo)` at `start` timestamp on the selected time range `[start ... end]`.
 * FEATURE: [MetricsQL](https://docs.victoriametrics.com/victoriametrics/metricsql/): add support for optional `keep_metric_names` modifier, which can be applied to all the [rollup functions](https://docs.victoriametrics.com/victoriametrics/metricsql/#rollup-functions) and [transform functions](https://docs.victoriametrics.com/victoriametrics/metricsql/#transform-functions). This modifier prevents from deleting metric names from function results. For example, `rate({__name__=~"foo|bar"}[5m]) keep_metric_names` leaves `foo` and `bar` metric names in `rate()` results. This feature provides an additional workaround for [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/949).