add changelog

app/vlinsert/insertutils/timestamp.go

@@ -2,20 +2,19 @@ package insertutils
 
 import (
 	"fmt"
-	"math"
 	"strconv"
 	"time"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logstorage"
 )
 
-// ExtractTimestampRFC3339NanoFromFields extracts RFC3339 timestamp in nanoseconds from the field with the name timeField at fields.
+// ExtractTimestampFromFields extracts timestamp in nanoseconds from the field with the name timeField at fields.
 //
 // The value for the timeField is set to empty string after returning from the function,
 // so it could be ignored during data ingestion.
 //
 // The current timestamp is returned if fields do not contain a field with timeField name or if the timeField value is empty.
-func ExtractTimestampRFC3339NanoFromFields(timeField string, fields []logstorage.Field) (int64, error) {
+func ExtractTimestampFromFields(timeField string, fields []logstorage.Field) (int64, error) {
 	for i := range fields {
 		f := &fields[i]
 		if f.Name != timeField {
@@ -48,22 +47,24 @@ func parseTimestamp(s string) (int64, error) {
 	return nsecs, nil
 }
 
-// ParseUnixTimestamp parses s as unix timestamp in either seconds or milliseconds and returns the parsed timestamp in nanoseconds.
+// ParseUnixTimestamp parses s as unix timestamp in seconds, milliseconds, microseconds or nanoseconds and returns the parsed timestamp in nanoseconds.
 func ParseUnixTimestamp(s string) (int64, error) {
 	n, err := strconv.ParseInt(s, 10, 64)
 	if err != nil {
 		return 0, fmt.Errorf("cannot parse unix timestamp from %q: %w", s, err)
 	}
 	if n < (1<<31) && n >= (-1<<31) {
-		// The timestamp is in seconds. Convert it to milliseconds
-		n *= 1e3
+		// The timestamp is in seconds.
+		return n * 1e9, nil
 	}
-	if n > int64(math.MaxInt64)/1e6 {
-		return 0, fmt.Errorf("too big timestamp in milliseconds: %d; mustn't exceed %d", n, int64(math.MaxInt64)/1e6)
+	if n < 1e3*(1<<31) && n >= 1e3*(-1<<31) {
+		// The timestamp is in milliseconds.
+		return n * 1e6, nil
 	}
-	if n < int64(math.MinInt64)/1e6 {
-		return 0, fmt.Errorf("too small timestamp in milliseconds: %d; must be bigger than %d", n, int64(math.MinInt64)/1e6)
+	if n < 1e6*(1<<31) && n >= 1e6*(-1<<31) {
+		// The timestamp is in microseconds.
+		return n * 1e3, nil
 	}
-	n *= 1e6
+	// The timestamp is in nanoseconds
 	return n, nil
 }

app/vlinsert/insertutils/timestamp_test.go

@@ -6,11 +6,11 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logstorage"
 )
 
-func TestExtractTimestampRFC3339NanoFromFields_Success(t *testing.T) {
+func TestExtractTimestampFromFields_Success(t *testing.T) {
 	f := func(timeField string, fields []logstorage.Field, nsecsExpected int64) {
 		t.Helper()
 
-		nsecs, err := ExtractTimestampRFC3339NanoFromFields(timeField, fields)
+		nsecs, err := ExtractTimestampFromFields(timeField, fields)
 		if err != nil {
 			t.Fatalf("unexpected error: %s", err)
 		}
@@ -51,6 +51,18 @@ func TestExtractTimestampRFC3339NanoFromFields_Success(t *testing.T) {
 		{Name: "foo", Value: "bar"},
 	}, 1718773640123456789)
 
+	// Unix timestamp in nanoseconds
+	f("time", []logstorage.Field{
+		{Name: "foo", Value: "bar"},
+		{Name: "time", Value: "1718773640123456789"},
+	}, 1718773640123456789)
+
+	// Unix timestamp in microseconds
+	f("time", []logstorage.Field{
+		{Name: "foo", Value: "bar"},
+		{Name: "time", Value: "1718773640123456"},
+	}, 1718773640123456000)
+
 	// Unix timestamp in milliseconds
 	f("time", []logstorage.Field{
 		{Name: "foo", Value: "bar"},
@@ -64,14 +76,14 @@ func TestExtractTimestampRFC3339NanoFromFields_Success(t *testing.T) {
 	}, 1718773640000000000)
 }
 
-func TestExtractTimestampRFC3339NanoFromFields_Error(t *testing.T) {
+func TestExtractTimestampFromFields_Error(t *testing.T) {
 	f := func(s string) {
 		t.Helper()
 
 		fields := []logstorage.Field{
 			{Name: "time", Value: s},
 		}
-		nsecs, err := ExtractTimestampRFC3339NanoFromFields("time", fields)
+		nsecs, err := ExtractTimestampFromFields("time", fields)
 		if err == nil {
 			t.Fatalf("expecting non-nil error")
 		}
@@ -80,6 +92,7 @@ func TestExtractTimestampRFC3339NanoFromFields_Error(t *testing.T) {
 		}
 	}
 
+	// invalid time
 	f("foobar")
 
 	// incomplete time

app/vlinsert/jsonline/jsonline.go

@@ -99,7 +99,7 @@ func readLine(lr *insertutils.LineReader, timeField string, msgFields []string,
 	if err := p.ParseLogMessage(line); err != nil {
 		return false, fmt.Errorf("cannot parse json-encoded log entry: %w", err)
 	}
-	ts, err := insertutils.ExtractTimestampRFC3339NanoFromFields(timeField, p.Fields)
+	ts, err := insertutils.ExtractTimestampFromFields(timeField, p.Fields)
 	if err != nil {
 		return false, fmt.Errorf("cannot get timestamp: %w", err)
 	}

app/vlinsert/syslog/syslog.go

@@ -560,7 +560,7 @@ func processLine(line []byte, currentYear int, timezone *time.Location, useLocal
 	if useLocalTimestamp {
 		ts = time.Now().UnixNano()
 	} else {
-		nsecs, err := insertutils.ExtractTimestampRFC3339NanoFromFields("timestamp", p.Fields)
+		nsecs, err := insertutils.ExtractTimestampFromFields("timestamp", p.Fields)
 		if err != nil {
 			return fmt.Errorf("cannot get timestamp from syslog line %q: %w", line, err)
 		}

app/vmalert/remotewrite/init.go

@@ -36,7 +36,7 @@ var (
 
 	maxQueueSize  = flag.Int("remoteWrite.maxQueueSize", defaultMaxQueueSize, "Defines the max number of pending datapoints to remote write endpoint")
 	maxBatchSize  = flag.Int("remoteWrite.maxBatchSize", defaultMaxBatchSize, "Defines max number of timeseries to be flushed at once")
-	concurrency   = flag.Int("remoteWrite.concurrency", defaultConcurrency, "Defines number of writers for concurrent writing into remote write endpoint")
+	concurrency   = flag.Int("remoteWrite.concurrency", defaultConcurrency, "Defines number of writers for concurrent writing into remote write endpoint. Default value depends on the number of available CPU cores.")
 	flushInterval = flag.Duration("remoteWrite.flushInterval", defaultFlushInterval, "Defines interval of flushes to remote write endpoint")
 
 	tlsInsecureSkipVerify = flag.Bool("remoteWrite.tlsInsecureSkipVerify", false, "Whether to skip tls verification when connecting to -remoteWrite.url")

app/vmauth/main.go

@@ -31,7 +31,11 @@ import (
 )
 
 var (
-	httpListenAddrs  = flagutil.NewArrayString("httpListenAddr", "TCP address to listen for incoming http requests. See also -tls and -httpListenAddr.useProxyProtocol")
+	httpListenAddrs = flagutil.NewArrayString("httpListenAddr", "TCP address to listen for incoming http requests. "+
+		"By default, serves internal API and proxy requests. "+
+		" See also -tls, -httpListenAddr.useProxyProtocol and -httpInternalListenAddr.")
+	httpInternalListenAddr = flagutil.NewArrayString("httpInternalListenAddr", "TCP address to listen for incoming internal API http requests. Such as /health, /-/reload, /debug/pprof, etc. "+
+		"If flag is set, vmauth no longer serves internal API at -httpListenAddr.")
 	useProxyProtocol = flagutil.NewArrayBool("httpListenAddr.useProxyProtocol", "Whether to use proxy protocol for connections accepted at the corresponding -httpListenAddr . "+
 		"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt . "+
 		"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing")
@@ -91,7 +95,21 @@ func main() {
 	logger.Infof("starting vmauth at %q...", listenAddrs)
 	startTime := time.Now()
 	initAuthConfig()
-	go httpserver.Serve(listenAddrs, useProxyProtocol, requestHandler)
+	disableInternalRoutes := len(*httpInternalListenAddr) > 0
+	rh := requestHandlerWithInternalRoutes
+	if disableInternalRoutes {
+		rh = requestHandler
+	}
+
+	serveOpts := httpserver.ServeOptions{
+		UseProxyProtocol:     useProxyProtocol,
+		DisableBuiltinRoutes: disableInternalRoutes,
+	}
+	go httpserver.ServeWithOpts(listenAddrs, rh, serveOpts)
+
+	if len(*httpInternalListenAddr) > 0 {
+		go httpserver.Serve(*httpInternalListenAddr, nil, internalRequestHandler)
+	}
 	logger.Infof("started vmauth in %.3f seconds", time.Since(startTime).Seconds())
 
 	pushmetrics.Init()
@@ -109,7 +127,7 @@ func main() {
 	logger.Infof("successfully stopped vmauth in %.3f seconds", time.Since(startTime).Seconds())
 }
 
-func requestHandler(w http.ResponseWriter, r *http.Request) bool {
+func internalRequestHandler(w http.ResponseWriter, r *http.Request) bool {
 	switch r.URL.Path {
 	case "/-/reload":
 		if !httpserver.CheckAuthFlag(w, r, reloadAuthKey) {
@@ -120,6 +138,17 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
 		w.WriteHeader(http.StatusOK)
 		return true
 	}
+	return false
+}
+
+func requestHandlerWithInternalRoutes(w http.ResponseWriter, r *http.Request) bool {
+	if internalRequestHandler(w, r) {
+		return true
+	}
+	return requestHandler(w, r)
+}
+
+func requestHandler(w http.ResponseWriter, r *http.Request) bool {
 
 	ats := getAuthTokensFromRequest(r)
 	if len(ats) == 0 {

app/vmauth/main_test.go

@@ -52,7 +52,7 @@ func TestRequestHandler(t *testing.T) {
 		r.Header.Set("Pass-Header", "abc")
 
 		w := &fakeResponseWriter{}
-		if !requestHandler(w, r) {
+		if !requestHandlerWithInternalRoutes(w, r) {
 			t.Fatalf("unexpected false is returned from requestHandler")
 		}
 

app/vmctl/flags.go

@@ -596,7 +596,8 @@ var (
 		&cli.Int64Flag{
 			Name: vmRateLimit,
 			Usage: "Optional data transfer rate limit in bytes per second.\n" +
-				"By default, the rate limit is disabled. It can be useful for limiting load on source or destination databases.",
+				"By default, the rate limit is disabled. It can be useful for limiting load on source or destination databases. \n" +
+				"Rate limit is applied per worker, see `--vm-concurrency`.",
 		},
 		&cli.BoolFlag{
 			Name: vmInterCluster,

app/vmselect/netstorage/netstorage.go

@@ -8,7 +8,6 @@ import (
 	"sort"
 	"sync"
 	"sync/atomic"
-	"time"
 	"unsafe"
 
 	"github.com/VictoriaMetrics/metrics"
@@ -1002,9 +1001,7 @@ func ExportBlocks(qt *querytracer.Tracer, sq *storage.SearchQuery, deadline sear
 
 	sr := getStorageSearch()
 	defer putStorageSearch(sr)
-	startTime := time.Now()
 	sr.Init(qt, vmstorage.Storage, tfss, tr, sq.MaxMetrics, deadline.Deadline())
-	indexSearchDuration.UpdateDuration(startTime)
 
 	// Start workers that call f in parallel on available CPU cores.
 	workCh := make(chan *exportWork, gomaxprocs*8)
@@ -1142,9 +1139,7 @@ func ProcessSearchQuery(qt *querytracer.Tracer, sq *storage.SearchQuery, deadlin
 	defer vmstorage.WG.Done()
 
 	sr := getStorageSearch()
-	startTime := time.Now()
 	maxSeriesCount := sr.Init(qt, vmstorage.Storage, tfss, tr, sq.MaxMetrics, deadline.Deadline())
-	indexSearchDuration.UpdateDuration(startTime)
 	type blockRefs struct {
 		brs []blockRef
 	}
@@ -1296,8 +1291,6 @@ func ProcessSearchQuery(qt *querytracer.Tracer, sq *storage.SearchQuery, deadlin
 	return &rss, nil
 }
 
-var indexSearchDuration = metrics.NewHistogram(`vm_index_search_duration_seconds`)
-
 type blockRef struct {
 	partRef storage.PartRef
 	addr    tmpBlockAddr

app/vmselect/prometheus/prometheus.go

@@ -29,6 +29,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httputils"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/memory"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/netutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/querytracer"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
 )
@@ -142,10 +143,13 @@ func FederateHandler(startTime time.Time, w http.ResponseWriter, r *http.Request
 		WriteFederate(bb, rs)
 		return sw.maybeFlushBuffer(bb)
 	})
-	if err != nil {
+	if err == nil {
+		err = sw.flush()
+	}
+	if err != nil && !netutil.IsTrivialNetworkError(err) {
 		return fmt.Errorf("error during sending data to remote client: %w", err)
 	}
-	return sw.flush()
+	return nil
 }
 
 var federateDuration = metrics.NewSummary(`vm_request_duration_seconds{path="/federate"}`)
@@ -226,10 +230,13 @@ func ExportCSVHandler(startTime time.Time, w http.ResponseWriter, r *http.Reques
 		}()
 	}
 	err = <-doneCh
-	if err != nil {
+	if err == nil {
+		err = sw.flush()
+	}
+	if err != nil && !netutil.IsTrivialNetworkError(err) {
 		return fmt.Errorf("error during sending the exported csv data to remote client: %w", err)
 	}
-	return sw.flush()
+	return nil
 }
 
 var exportCSVDuration = metrics.NewSummary(`vm_request_duration_seconds{path="/api/v1/export/csv"}`)
@@ -281,10 +288,13 @@ func ExportNativeHandler(startTime time.Time, w http.ResponseWriter, r *http.Req
 		bb.B = dst
 		return sw.maybeFlushBuffer(bb)
 	})
-	if err != nil {
+	if err == nil {
+		err = sw.flush()
+	}
+	if err != nil && !netutil.IsTrivialNetworkError(err) {
 		return fmt.Errorf("error during sending native data to remote client: %w", err)
 	}
-	return sw.flush()
+	return nil
 }
 
 var exportNativeDuration = metrics.NewSummary(`vm_request_duration_seconds{path="/api/v1/export/native"}`)
@@ -441,16 +451,19 @@ func exportHandler(qt *querytracer.Tracer, w http.ResponseWriter, cp *commonPara
 		}()
 	}
 	err := <-doneCh
-	if err != nil {
+	if err == nil {
+		err = sw.flush()
+	}
+	if err == nil {
+		if format == "promapi" {
+			WriteExportPromAPIFooter(bw, qt)
+		}
+		err = bw.Flush()
+	}
+	if err != nil && !netutil.IsTrivialNetworkError(err) {
 		return fmt.Errorf("cannot send data to remote client: %w", err)
 	}
-	if err := sw.flush(); err != nil {
-		return fmt.Errorf("cannot send data to remote client: %w", err)
-	}
-	if format == "promapi" {
-		WriteExportPromAPIFooter(bw, qt)
-	}
-	return bw.Flush()
+	return nil
 }
 
 type exportBlock struct {

app/vmselect/promql/binary_op.go

@@ -483,8 +483,11 @@ func binaryOpOr(bfa *binaryOpFuncArg) ([]*timeseries, error) {
 	mLeft, mRight := createTimeseriesMapByTagSet(bfa.be, bfa.left, bfa.right)
 	var rvs []*timeseries
 
-	for _, tss := range mLeft {
-		rvs = append(rvs, tss...)
+	for k, tss := range mLeft {
+		tssLeft := removeEmptySeries(tss)
+		// re-assign modified slice to map, since it can be referred later
+		mLeft[k] = tssLeft
+		rvs = append(rvs, tssLeft...)
 	}
 	// Sort left-hand-side series by metric name as Prometheus does.
 	// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5393
@@ -497,7 +500,10 @@ func binaryOpOr(bfa *binaryOpFuncArg) ([]*timeseries, error) {
 			rvs = append(rvs, tssRight...)
 			continue
 		}
-		fillLeftNaNsWithRightValues(tssLeft, tssRight)
+		fillLeftNaNsWithRightValuesOrMerge(tssLeft, tssRight)
+		// tssRight might be filled with NaNs after merge
+		tssRight = removeEmptySeries(tssRight)
+		rvs = append(rvs, tssRight...)
 	}
 	// Sort the added right-hand-side series by metric name as Prometheus does.
 	// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5393
@@ -526,6 +532,35 @@ func fillLeftNaNsWithRightValues(tssLeft, tssRight []*timeseries) {
 	}
 }
 
+// fill gaps in tssLeft with values from tssRight when labels match
+// Set NaNs to tssRight when tssLeft has corresponding values
+// or if tssLeft and tssRight can be merged.
+//
+// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7759
+// https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7640
+func fillLeftNaNsWithRightValuesOrMerge(tssLeft, tssRight []*timeseries) {
+	for _, tsLeft := range tssLeft {
+		valuesLeft := tsLeft.Values
+		nameLeft := tsLeft.MetricName.String()
+		for i, v := range valuesLeft {
+			leftIsNaN := math.IsNaN(v)
+			for _, tsRight := range tssRight {
+				canBeMerged := nameLeft == tsRight.MetricName.String()
+				valueRight := tsRight.Values[i]
+				if leftIsNaN && canBeMerged {
+					// fill NaNs with valueRight if labels match
+					valuesLeft[i] = valueRight
+				}
+				if !leftIsNaN || canBeMerged {
+					// set NaN to valueRight if valueLeft is not NaN
+					// or if left and right can be merged
+					tsRight.Values[i] = nan
+				}
+			}
+		}
+	}
+}
+
 func binaryOpIfnot(bfa *binaryOpFuncArg) ([]*timeseries, error) {
 	mLeft, mRight := createTimeseriesMapByTagSet(bfa.be, bfa.left, bfa.right)
 	var rvs []*timeseries

app/vmselect/promql/exec_test.go

@@ -4461,9 +4461,9 @@ func TestExecSuccess(t *testing.T) {
 	t.Run(`histogram_quantile(nan-bucket-count-some)`, func(t *testing.T) {
 		t.Parallel()
 		q := `round(histogram_quantile(0.6,
-			label_set(90, "foo", "bar", "le", "10")
-			or label_set(NaN, "foo", "bar", "le", "30")
-			or label_set(300, "foo", "bar", "le", "+Inf")
+			union(label_set(90, "foo", "bar", "le", "10"),
+			label_set(NaN, "foo", "bar", "le", "30"),
+			label_set(300, "foo", "bar", "le", "+Inf"))
 		),0.01)`
 		r := netstorage.Result{
 			MetricName: metricNameExpected,
@@ -9409,7 +9409,384 @@ func TestExecSuccess(t *testing.T) {
 		resultExpected := []netstorage.Result{r}
 		f(q, resultExpected)
 	})
+	t.Run(`nan or on() series`, func(t *testing.T) {
+		t.Parallel()
+		// left side returns NaNs only, so the right side should replace its values and labels
+		// https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7759
+		q := `(label_set(1, "a", "a", "b", "b1") == 0) or on(a) label_set(2, "a", "a", "b", "b2")`
+		r := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{2, 2, 2, 2, 2, 2},
+			Timestamps: timestampsExpected,
+		}
+		r.MetricName.Tags = []storage.Tag{{
+			Key:   []byte("a"),
+			Value: []byte("a"),
+		}, {
+			Key:   []byte("b"),
+			Value: []byte("b2"),
+		}}
+		resultExpected := []netstorage.Result{r}
+		f(q, resultExpected)
+	})
+	t.Run(`series with NaNs or scalar`, func(t *testing.T) {
+		t.Parallel()
+		q := `(label_set(time() >= 1600, "a", "a", "b", "b1")) or 1`
+		r1 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{nan, nan, nan, 1600, 1800, 2000},
+			Timestamps: timestampsExpected,
+		}
+		r1.MetricName.Tags = []storage.Tag{{
+			Key:   []byte("a"),
+			Value: []byte("a"),
+		}, {
+			Key:   []byte("b"),
+			Value: []byte("b1"),
+		}}
 
+		r2 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{1, 1, 1, 1, 1, 1},
+			Timestamps: timestampsExpected,
+		}
+		resultExpected := []netstorage.Result{r1, r2}
+		f(q, resultExpected)
+	})
+	t.Run(`series or on() scalar`, func(t *testing.T) {
+		t.Parallel()
+		// https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7640
+		q := `(label_set(time() > 1200, "a", "a", "b", "b1")) or on() vector(0)`
+		r1 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{nan, nan, 1400, 1600, 1800, 2000},
+			Timestamps: timestampsExpected,
+		}
+		r1.MetricName.Tags = []storage.Tag{{
+			Key:   []byte("a"),
+			Value: []byte("a"),
+		}, {
+			Key:   []byte("b"),
+			Value: []byte("b1"),
+		}}
+
+		r2 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{0, 0, nan, nan, nan, nan},
+			Timestamps: timestampsExpected,
+		}
+		resultExpected := []netstorage.Result{r1, r2}
+		f(q, resultExpected)
+	})
+	t.Run(`series or on() series`, func(t *testing.T) {
+		t.Parallel()
+		// left side + right side
+		q := `(label_set(time() <= 1200, "a", "a", "b", "b1")) or on(a) label_set(time() > 1200, "a", "a", "b", "b2")`
+		r1 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{1000, 1200, nan, nan, nan, nan},
+			Timestamps: timestampsExpected,
+		}
+		r1.MetricName.Tags = []storage.Tag{{
+			Key:   []byte("a"),
+			Value: []byte("a"),
+		}, {
+			Key:   []byte("b"),
+			Value: []byte("b1"),
+		}}
+
+		r2 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{nan, nan, 1400, 1600, 1800, 2000},
+			Timestamps: timestampsExpected,
+		}
+		r2.MetricName.Tags = []storage.Tag{{
+			Key:   []byte("a"),
+			Value: []byte("a"),
+		}, {
+			Key:   []byte("b"),
+			Value: []byte("b2"),
+		}}
+		resultExpected := []netstorage.Result{r1, r2}
+		f(q, resultExpected)
+	})
+	t.Run(`series with no NaNs or on() series`, func(t *testing.T) {
+		t.Parallel()
+		// left side contains all needed values, so the right side should be dropped
+		q := `(label_set(time() < 3000, "a", "a", "b", "b1")) or on(a) label_set(time() > 3000, "a", "a", "b", "b2")`
+		r := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{1000, 1200, 1400, 1600, 1800, 2000},
+			Timestamps: timestampsExpected,
+		}
+		r.MetricName.Tags = []storage.Tag{{
+			Key:   []byte("a"),
+			Value: []byte("a"),
+		}, {
+			Key:   []byte("b"),
+			Value: []byte("b1"),
+		}}
+
+		resultExpected := []netstorage.Result{r}
+		f(q, resultExpected)
+	})
+	t.Run(`series or on() series with overlap`, func(t *testing.T) {
+		t.Parallel()
+		// left overlap with right
+		q := `(label_set(time() <= 1500, "a", "a", "b", "b1")) or on(a) label_set(time() > 1100, "a", "a", "b", "b2")`
+		r1 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{1000, 1200, 1400, nan, nan, nan},
+			Timestamps: timestampsExpected,
+		}
+		r1.MetricName.Tags = []storage.Tag{{
+			Key:   []byte("a"),
+			Value: []byte("a"),
+		}, {
+			Key:   []byte("b"),
+			Value: []byte("b1"),
+		}}
+
+		r2 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{nan, nan, nan, 1600, 1800, 2000},
+			Timestamps: timestampsExpected,
+		}
+		r2.MetricName.Tags = []storage.Tag{{
+			Key:   []byte("a"),
+			Value: []byte("a"),
+		}, {
+			Key:   []byte("b"),
+			Value: []byte("b2"),
+		}}
+
+		resultExpected := []netstorage.Result{r1, r2}
+		f(q, resultExpected)
+	})
+	t.Run(`series or on() series merge`, func(t *testing.T) {
+		t.Parallel()
+		// left + right for same series
+		q := `(label_set(time() <= 1200, "a", "a", "b", "b1")) or on(a) label_set(time() > 1400, "a", "a", "b", "b1")`
+		r := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{1000, 1200, nan, 1600, 1800, 2000},
+			Timestamps: timestampsExpected,
+		}
+		r.MetricName.Tags = []storage.Tag{{
+			Key:   []byte("a"),
+			Value: []byte("a"),
+		}, {
+			Key:   []byte("b"),
+			Value: []byte("b1"),
+		}}
+
+		resultExpected := []netstorage.Result{r}
+		f(q, resultExpected)
+	})
+	t.Run(`scalar or timeseries`, func(t *testing.T) {
+		t.Parallel()
+		q := `time() > 1400 or label_set(123, "foo", "bar")`
+		r1 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{nan, nan, nan, 1600, 1800, 2000},
+			Timestamps: timestampsExpected,
+		}
+		r2 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{123, 123, 123, 123, 123, 123},
+			Timestamps: timestampsExpected,
+		}
+		r2.MetricName.Tags = []storage.Tag{{
+			Key:   []byte("foo"),
+			Value: []byte("bar"),
+		}}
+		resultExpected := []netstorage.Result{r1, r2}
+		f(q, resultExpected)
+	})
+	t.Run(`series or many series`, func(t *testing.T) {
+		//load 1m
+		//    foo{a="a", b="1"} 1 0 1 1 1
+		//    bar{a="a", b="2"} 2 2 2 2 2
+		//    bar{a="a", b="3"} 3 3 3 3 3
+		//
+		//eval range from 0 to 4m step 1m foo!=0 or on (a) bar
+		//    foo{a="a", b="1"} 1 _ 1 1 1
+		//    bar{a="a", b="2"} _ 2 _ _ _
+		//    bar{a="a", b="3"} _ 3 _ _ _
+		// https://github.com/prometheus/prometheus/tree/main/promql/promqltest
+		t.Parallel()
+		q := `(
+			label_set(time()!=1200, "x", "foo"),
+		) or on(x) (
+			label_set(time()+1, "x", "foo", "y", "bar"),
+			label_set(time()+2, "y", "baz", "x", "foo"),
+		)`
+		r1 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{1000, nan, 1400, 1600, 1800, 2000},
+			Timestamps: timestampsExpected,
+		}
+		r1.MetricName.Tags = []storage.Tag{
+			{Key: []byte("x"), Value: []byte("foo")},
+		}
+		r2 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{nan, 1201, nan, nan, nan, nan},
+			Timestamps: timestampsExpected,
+		}
+		r2.MetricName.Tags = []storage.Tag{
+			{Key: []byte("x"), Value: []byte("foo")},
+			{Key: []byte("y"), Value: []byte("bar")},
+		}
+		r3 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{nan, 1202, nan, nan, nan, nan},
+			Timestamps: timestampsExpected,
+		}
+		r3.MetricName.Tags = []storage.Tag{
+			{Key: []byte("x"), Value: []byte("foo")},
+			{Key: []byte("y"), Value: []byte("baz")},
+		}
+		resultExpected := []netstorage.Result{r1, r2, r3}
+		f(q, resultExpected)
+	})
+	t.Run(`many series or series`, func(t *testing.T) {
+		//load 1m
+		//    foo{a="a", b="1"} 1 0 1 1 1
+		//    foo{a="a", b="2"} 2 2 2 2 2
+		//    bar{a="a", b="3"} 3 3 3 3 3
+		//
+		//eval range from 0 to 4m step 1m foo!=0 or on (a) bar
+		//    foo{a="a", b="1"} 1 _ 1 1 1
+		//    foo{a="a", b="2"} 2 2 2 2 2
+		// https://github.com/prometheus/prometheus/tree/main/promql/promqltest
+		t.Parallel()
+		q := `(
+			label_set(time()!=1200, "x", "foo"),
+			label_set(time()+1, "x", "foo", "y","baz"),
+		) or on(x) (
+			label_set(time()+2, "x", "foo", "y", "bar"),
+		)`
+		r1 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{1000, nan, 1400, 1600, 1800, 2000},
+			Timestamps: timestampsExpected,
+		}
+		r1.MetricName.Tags = []storage.Tag{
+			{Key: []byte("x"), Value: []byte("foo")},
+		}
+		r2 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{1001, 1201, 1401, 1601, 1801, 2001},
+			Timestamps: timestampsExpected,
+		}
+		r2.MetricName.Tags = []storage.Tag{
+			{Key: []byte("x"), Value: []byte("foo")},
+			{Key: []byte("y"), Value: []byte("baz")},
+		}
+		resultExpected := []netstorage.Result{r1, r2}
+		f(q, resultExpected)
+	})
+	t.Run(`many series or series with no merge`, func(t *testing.T) {
+		//	load 1m
+		//    foo{job="a1", a="a"} 0 0 1 1 0
+		//    foo{job="a2", a="a"} 1 1 0 0 0
+		//    foo{job="a3", a="a"} 1 1 1 1 1
+		//    foo{job="a4", a="a"} 1 1 1 1 1
+		//
+		//eval range from 0 to 4m step 1m (foo{job=~"a1|a2"} == 0) or on (a) (foo{job=~"a3|a4"} == 1)
+		//    foo{job="a1", a="a"} 0 0 _ _ 0
+		//    foo{job="a2", a="a"} _ _ 0 0 0
+		// https://github.com/prometheus/prometheus/tree/main/promql/promqltest
+		t.Parallel()
+		q := `(
+			label_set(time()!=1400, "job", "a1", "a", "a"),
+			label_set(time()>=1400, "job", "a2", "a", "a"),
+		) or on(a) (
+			label_set(time(), "job", "a3", "a", "a"),
+			label_set(time(), "job", "a4", "a", "a"),
+		)`
+		r1 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{1000, 1200, nan, 1600, 1800, 2000},
+			Timestamps: timestampsExpected,
+		}
+		r1.MetricName.Tags = []storage.Tag{
+			{Key: []byte("a"), Value: []byte("a")},
+			{Key: []byte("job"), Value: []byte("a1")},
+		}
+		r2 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{nan, nan, 1400, 1600, 1800, 2000},
+			Timestamps: timestampsExpected,
+		}
+		r2.MetricName.Tags = []storage.Tag{
+			{Key: []byte("a"), Value: []byte("a")},
+			{Key: []byte("job"), Value: []byte("a2")},
+		}
+		resultExpected := []netstorage.Result{r1, r2}
+		f(q, resultExpected)
+	})
+	t.Run(`many series or series with merge`, func(t *testing.T) {
+		//	load 1m
+		//    foo{job="a1", a="a"} 0 0 1 1 0
+		//    foo{job="a2", a="a"} 1 1 1 0 0
+		//    foo{job="a3", a="a"} 1 1 1 1 1
+		//    foo{job="a4", a="a"} 1 1 1 1 1
+		//
+		//eval range from 0 to 4m step 1m (foo{job=~"a1|a2"} == 0) or on (a) (foo{job=~"a3|a4"} == 1)
+		//    foo{job="a1", a="a"} 0 0 _ _ 0
+		//    foo{job="a2", a="a"} _ _ _ 0 0
+		//    foo{job="a3", a="a"} _ _ 1 _ _
+		//    foo{job="a4", a="a"} _ _ 1 _ _
+		// https://github.com/prometheus/prometheus/tree/main/promql/promqltest
+		t.Parallel()
+		q := `(
+			label_set(time()!=1400, "job", "a1", "a", "a"),
+			label_set(time()>=1600, "job", "a2", "a", "a"),
+		) or on(a) (
+			label_set(time(), "job", "a3", "a", "a"),
+			label_set(time(), "job", "a4", "a", "a"),
+		)`
+		r1 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{1000, 1200, nan, 1600, 1800, 2000},
+			Timestamps: timestampsExpected,
+		}
+		r1.MetricName.Tags = []storage.Tag{
+			{Key: []byte("a"), Value: []byte("a")},
+			{Key: []byte("job"), Value: []byte("a1")},
+		}
+		r2 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{nan, nan, nan, 1600, 1800, 2000},
+			Timestamps: timestampsExpected,
+		}
+		r2.MetricName.Tags = []storage.Tag{
+			{Key: []byte("a"), Value: []byte("a")},
+			{Key: []byte("job"), Value: []byte("a2")},
+		}
+		r3 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{nan, nan, 1400, nan, nan, nan},
+			Timestamps: timestampsExpected,
+		}
+		r3.MetricName.Tags = []storage.Tag{
+			{Key: []byte("a"), Value: []byte("a")},
+			{Key: []byte("job"), Value: []byte("a3")},
+		}
+		r4 := netstorage.Result{
+			MetricName: metricNameExpected,
+			Values:     []float64{nan, nan, 1400, nan, nan, nan},
+			Timestamps: timestampsExpected,
+		}
+		r4.MetricName.Tags = []storage.Tag{
+			{Key: []byte("a"), Value: []byte("a")},
+			{Key: []byte("job"), Value: []byte("a4")},
+		}
+		resultExpected := []netstorage.Result{r1, r2, r3, r4}
+		f(q, resultExpected)
+	})
 }
 
 func TestExecError(t *testing.T) {

app/vmselect/searchutils/searchutils_test.go

@@ -99,7 +99,8 @@ func TestParseMetricSelectorSuccess(t *testing.T) {
 	f(`{foo="bar"}`)
 	f(`{:f:oo=~"bar.+"}`)
 	f(`foo {bar != "baz"}`)
-	f(` foo { bar !~ "^ddd(x+)$", a="ss", __name__="sffd"}  `)
+	f(` { bar !~ "^ddd(x+)$", a="ss", __name__="sffd"}  `)
+	f(` { bar !~ "^ddd(x+)$", a="ss", "foo"}  `)
 	f(`(foo)`)
 	f(`\п\р\и\в\е\т{\ы="111"}`)
 }

app/vmselect/vmui/asset-manifest.json

@@ -1,13 +1,13 @@
 {
   "files": {
-    "main.css": "./static/css/main.af583aad.css",
-    "main.js": "./static/js/main.1413b18d.js",
+    "main.css": "./static/css/main.7fa18e1b.css",
+    "main.js": "./static/js/main.ba08300f.js",
     "static/js/685.f772060c.chunk.js": "./static/js/685.f772060c.chunk.js",
     "static/media/MetricsQL.md": "./static/media/MetricsQL.a00044c91d9781cf8557.md",
     "index.html": "./index.html"
   },
   "entrypoints": [
-    "static/css/main.af583aad.css",
-    "static/js/main.1413b18d.js"
+    "static/css/main.7fa18e1b.css",
+    "static/js/main.ba08300f.js"
   ]
 }

app/vmselect/vmui/index.html

@@ -1 +1 @@
-<!doctype html><html lang="en"><head><meta charset="utf-8"/><link rel="icon" href="./favicon.svg"/><link rel="apple-touch-icon" href="./favicon.svg"/><link rel="mask-icon" href="./favicon.svg" color="#000000"><meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=5"/><meta name="theme-color" content="#000000"/><meta name="description" content="Explore and troubleshoot your VictoriaMetrics data"/><link rel="manifest" href="./manifest.json"/><title>vmui</title><script src="./dashboards/index.js" type="module"></script><meta name="twitter:card" content="summary"><meta name="twitter:title" content="UI for VictoriaMetrics"><meta name="twitter:site" content="@https://victoriametrics.com/"><meta name="twitter:description" content="Explore and troubleshoot your VictoriaMetrics data"><meta name="twitter:image" content="./preview.jpg"><meta property="og:type" content="website"><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 defer="defer" src="./static/js/main.1413b18d.js"></script><link href="./static/css/main.af583aad.css" rel="stylesheet"></head><body><noscript>You need to enable JavaScript to run this app.</noscript><div id="root"></div></body></html>
+<!doctype html><html lang="en"><head><meta charset="utf-8"/><link rel="icon" href="./favicon.svg"/><link rel="apple-touch-icon" href="./favicon.svg"/><link rel="mask-icon" href="./favicon.svg" color="#000000"><meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=5"/><meta name="theme-color" content="#000000"/><meta name="description" content="Explore and troubleshoot your VictoriaMetrics data"/><link rel="manifest" href="./manifest.json"/><title>vmui</title><script src="./dashboards/index.js" type="module"></script><meta name="twitter:card" content="summary"><meta name="twitter:title" content="UI for VictoriaMetrics"><meta name="twitter:site" content="@https://victoriametrics.com/"><meta name="twitter:description" content="Explore and troubleshoot your VictoriaMetrics data"><meta name="twitter:image" content="./preview.jpg"><meta property="og:type" content="website"><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 defer="defer" src="./static/js/main.ba08300f.js"></script><link href="./static/css/main.7fa18e1b.css" rel="stylesheet"></head><body><noscript>You need to enable JavaScript to run this app.</noscript><div id="root"></div></body></html>

app/vmui/Dockerfile-web

@@ -1,4 +1,4 @@
-FROM golang:1.23.5 AS build-web-stage
+FROM golang:1.23.6 AS build-web-stage
 COPY build /build
 
 WORKDIR /build

app/vmui/packages/vmui/src/api/types.ts

@@ -46,7 +46,7 @@ export interface Logs {
 export interface LogHits {
   timestamps: string[];
   values: number[];
-  total?: number;
+  total: number;
   fields: { [key: string]: string; };
   _isOther: boolean;
 }

app/vmui/packages/vmui/src/components/Chart/BarHitsChart/BarHitsTooltip/BarHitsTooltip.tsx

@@ -122,7 +122,7 @@ const BarHitsTooltip: FC<Props> = ({ data, focusDataIdx, uPlotInst }) => {
         </div>
       )}
       <div className="vm-chart-tooltip-header">
-        <div className="vm-chart-tooltip-header__title">
+        <div className="vm-chart-tooltip-header__title vm-bar-hits-tooltip__date">
           {tooltipData.timestamp}
         </div>
       </div>

app/vmui/packages/vmui/src/components/Chart/BarHitsChart/BarHitsTooltip/style.scss

@@ -24,4 +24,8 @@
       white-space: nowrap;
     }
   }
+
+  &__date {
+    white-space: nowrap;
+  }
 }

app/vmui/packages/vmui/src/components/Chart/BarHitsChart/hooks/useBarHitsOptions.ts

@@ -76,7 +76,7 @@ const useBarHitsOptions = ({
         width: strokeWidth[graphOptions.graphStyle],
         spanGaps: true,
         stroke: color,
-        fill: graphOptions.fill ? color + "80" : "",
+        fill: graphOptions.fill ? color + (target?._isOther ? "" : "80") : "",
         paths: getSeriesPaths(graphOptions.graphStyle),
       };
     });

app/vmui/packages/vmui/src/components/Configurators/GraphSettings/AxesLimitsConfigurator/AxesLimitsConfigurator.tsx

@@ -36,35 +36,40 @@ const AxesLimitsConfigurator: FC<AxesLimitsConfiguratorProps> = ({ yaxis, setYax
       "vm-axes-limits_mobile": isMobile
     })}
   >
-    <Switch
-      value={yaxis.limits.enable}
-      onChange={toggleEnableLimits}
-      label="Fix the limits for y-axis"
-      fullWidth={isMobile}
-    />
-    <div className="vm-axes-limits-list">
-      {axes.map(axis => (
-        <div
-          className="vm-axes-limits-list__inputs"
-          key={axis}
-        >
-          <TextField
-            label={`Min ${axis}`}
-            type="number"
-            disabled={!yaxis.limits.enable}
-            value={yaxis.limits.range[axis][0]}
-            onChange={createHandlerOnchangeAxis(axis, 0)}
-          />
-          <TextField
-            label={`Max ${axis}`}
-            type="number"
-            disabled={!yaxis.limits.enable}
-            value={yaxis.limits.range[axis][1]}
-            onChange={createHandlerOnchangeAxis(axis, 1)}
-          />
-        </div>
-      ))}
+    <div className="vm-graph-settings-row">
+      <span className="vm-graph-settings-row__label">Fixed Y-axis limits</span>
+      <Switch
+        value={yaxis.limits.enable}
+        onChange={toggleEnableLimits}
+        label={`${yaxis.limits.enable ? "Fixed" : "Auto"} limits`}
+        fullWidth={isMobile}
+      />
     </div>
+    {yaxis.limits.enable && (
+      <div className="vm-axes-limits-list">
+        {axes.map(axis => (
+          <div
+            className="vm-axes-limits-list__inputs"
+            key={axis}
+          >
+            <TextField
+              label={`Min ${axis}`}
+              type="number"
+              disabled={!yaxis.limits.enable}
+              value={yaxis.limits.range[axis][0]}
+              onChange={createHandlerOnchangeAxis(axis, 0)}
+            />
+            <TextField
+              label={`Max ${axis}`}
+              type="number"
+              disabled={!yaxis.limits.enable}
+              value={yaxis.limits.range[axis][1]}
+              onChange={createHandlerOnchangeAxis(axis, 1)}
+            />
+          </div>
+        ))}
+      </div>
+    )}
   </div>;
 };
 

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

@@ -8,10 +8,14 @@ import "./style.scss";
 import Tooltip from "../../Main/Tooltip/Tooltip";
 import useBoolean from "../../../hooks/useBoolean";
 import LinesConfigurator from "./LinesConfigurator/LinesConfigurator";
+import GraphTypeSwitcher from "./GraphTypeSwitcher/GraphTypeSwitcher";
+import { MetricResult } from "../../../api/types";
+import { isHistogramData } from "../../../utils/metric";
 
 const title = "Graph settings";
 
 interface GraphSettingsProps {
+  data: MetricResult[],
   yaxis: YaxisState,
   setYaxisLimits: (limits: AxisRange) => void,
   toggleEnableLimits: () => void,
@@ -19,11 +23,13 @@ interface GraphSettingsProps {
     value: boolean,
     onChange: (value: boolean) => void,
   },
+  isHistogram?: boolean,
 }
 
-const GraphSettings: FC<GraphSettingsProps> = ({ yaxis, setYaxisLimits, toggleEnableLimits, spanGaps }) => {
+const GraphSettings: FC<GraphSettingsProps> = ({ data, yaxis, setYaxisLimits, toggleEnableLimits, spanGaps }) => {
   const popperRef = useRef<HTMLDivElement>(null);
   const buttonRef = useRef<HTMLDivElement>(null);
+  const displayHistogramMode = isHistogramData(data);
 
   const {
     value: openPopper,
@@ -64,6 +70,7 @@ const GraphSettings: FC<GraphSettingsProps> = ({ yaxis, setYaxisLimits, toggleEn
               spanGaps={spanGaps.value}
               onChange={spanGaps.onChange}
             />
+            {displayHistogramMode && <GraphTypeSwitcher onChange={handleClose}/>}
           </div>
         </div>
       </Popper>

app/vmui/packages/vmui/src/components/Configurators/GraphSettings/GraphTypeSwitcher/GraphTypeSwitcher.tsx

@@ -0,0 +1,36 @@
+import React, { FC } from "preact/compat";
+import Switch from "../../../Main/Switch/Switch";
+import useDeviceDetect from "../../../../hooks/useDeviceDetect";
+import { useSearchParams } from "react-router-dom";
+import { useChangeDisplayMode } from "./useChangeDisplayMode";
+
+type Props = {
+  onChange: () => void;
+}
+
+const GraphTypeSwitcher: FC<Props> = ({ onChange }) => {
+  const { isMobile } = useDeviceDetect();
+
+  const { handleChange } = useChangeDisplayMode();
+  const [searchParams] = useSearchParams();
+
+  const value = !searchParams.get("display_mode");
+
+  const handleChangeMode = (val: boolean) => {
+    handleChange(val, onChange);
+  };
+
+  return (
+    <div className="vm-graph-settings-row">
+      <span className="vm-graph-settings-row__label">Histogram mode</span>
+      <Switch
+        value={value}
+        onChange={handleChangeMode}
+        label={value ? "Enabled" : "Disabled"}
+        fullWidth={isMobile}
+      />
+    </div>
+  );
+};
+
+export default GraphTypeSwitcher;

app/vmui/packages/vmui/src/components/Configurators/GraphSettings/GraphTypeSwitcher/useChangeDisplayMode.ts

@@ -0,0 +1,16 @@
+import { useTimeDispatch } from "../../../../state/time/TimeStateContext";
+import { useSearchParams } from "react-router-dom";
+
+export const useChangeDisplayMode = () => {
+  const [searchParams, setSearchParams] = useSearchParams();
+  const dispatch = useTimeDispatch();
+
+  const handleChange = (val: boolean, callback?: () => void) => {
+    val ? searchParams.delete("display_mode") : searchParams.set("display_mode", "lines");
+    setSearchParams(searchParams);
+    dispatch({ type: "RUN_QUERY" });
+    callback && callback();
+  };
+
+  return { handleChange };
+};

app/vmui/packages/vmui/src/components/Configurators/GraphSettings/LinesConfigurator/LinesConfigurator.tsx

@@ -10,14 +10,17 @@ interface Props {
 const LinesConfigurator: FC<Props> = ({ spanGaps, onChange }) => {
   const { isMobile } = useDeviceDetect();
 
-  return <div>
-    <Switch
-      value={spanGaps}
-      onChange={onChange}
-      label="Connect null values"
-      fullWidth={isMobile}
-    />
-  </div>;
+  return (
+    <div className="vm-graph-settings-row">
+      <span className="vm-graph-settings-row__label">Connect null values</span>
+      <Switch
+        value={spanGaps}
+        onChange={onChange}
+        label={spanGaps ? "Enabled" : "Disabled"}
+        fullWidth={isMobile}
+      />
+    </div>
+  );
 };
 
 export default LinesConfigurator;

app/vmui/packages/vmui/src/components/Configurators/GraphSettings/style.scss

@@ -1,15 +1,31 @@
 @use "src/styles/variables" as *;
 
 .vm-graph-settings {
+  display: flex;
+  align-items: center;
+  gap: $padding-small;
+
   &-popper {
     display: grid;
     gap: $padding-global;
-    padding: 0 0 $padding-global;
+    padding: $padding-small $padding-large $padding-large;
+    min-width: 300px;
 
     &__body {
       display: grid;
       gap: $padding-large;
-      padding: 0 $padding-global;
+    }
+  }
+
+  &-row {
+    display: grid;
+    gap: $padding-small;
+    grid-template-columns: minmax(150px, max-content) 1fr;
+
+    &__label {
+      &:after{
+        content: ":";
+      }
     }
   }
 }

app/vmui/packages/vmui/src/components/LogsConfigurators/GroupLogsConfigurators/GroupLogsConfigurators.tsx

@@ -41,13 +41,13 @@ const GroupLogsConfigurators: FC<Props> = ({ logs }) => {
   const noWrapLines = searchParams.get(NO_WRAP_LINES) === "true";
   const compactGroupHeader = searchParams.get(COMPACT_GROUP_HEADER) === "true";
   const displayFieldsString = searchParams.get(DISPLAY_FIELDS) || "";
-  const displayFields = displayFieldsString ? displayFieldsString.split(",") : [];
+  const displayFields = displayFieldsString ? displayFieldsString.split(",") : [LOGS_DISPLAY_FIELDS];
 
   const [dateFormat, setDateFormat] = useState(searchParams.get(DATE_FORMAT) || LOGS_DATE_FORMAT);
   const [errorFormat, setErrorFormat] = useState("");
 
   const isGroupChanged = groupBy !== LOGS_GROUP_BY;
-  const isDisplayFieldsChanged = displayFields.length > 0;
+  const isDisplayFieldsChanged = displayFields.length !== 1 || displayFields[0] !== LOGS_DISPLAY_FIELDS;
   const isTimeChanged = searchParams.get(DATE_FORMAT) !== LOGS_DATE_FORMAT;
   const hasChanges = [
     isGroupChanged,
@@ -58,9 +58,7 @@ const GroupLogsConfigurators: FC<Props> = ({ logs }) => {
   ].some(Boolean);
 
   const logsKeys = useMemo(() => {
-    const excludeKeys = ["_msg", "_time"];
-    const uniqKeys = Array.from(new Set(logs.map(l => Object.keys(l)).flat()));
-    return uniqKeys.filter(k => !excludeKeys.includes(k));
+    return Array.from(new Set(logs.map(l => Object.keys(l)).flat()));
   }, [logs]);
 
   const {

app/vmui/packages/vmui/src/components/Main/CodeExample/CodeExample.tsx

@@ -4,13 +4,16 @@ import { useState } from "react";
 import Tooltip from "../Tooltip/Tooltip";
 import Button from "../Button/Button";
 import { CopyIcon } from "../Icons";
+import useCopyToClipboard from "../../../hooks/useCopyToClipboard";
 
 enum CopyState { copy = "Copy", copied = "Copied" }
 
 const CodeExample: FC<{code: string}> = ({ code }) => {
+  const copyToClipboard = useCopyToClipboard();
+
   const [tooltip, setTooltip] = useState(CopyState.copy);
-  const handlerCopy = () => {
-    navigator.clipboard.writeText(code);
+  const handlerCopy = async () => {
+    await copyToClipboard(code);
     setTooltip(CopyState.copied);
   };
 

app/vmui/packages/vmui/src/components/Main/Popper/style.scss

@@ -11,7 +11,7 @@
   border-radius: $border-radius-small;
 
   &_open {
-    z-index: 100;
+    z-index: 101;
     opacity: 1;
     transform-origin: top center;
     animation: vm-slider 150ms cubic-bezier(0.280, 0.840, 0.420, 1.1);

app/vmui/packages/vmui/src/components/Table/Table.tsx

@@ -5,6 +5,7 @@ import { getComparator, stableSort } from "./helpers";
 import Tooltip from "../Main/Tooltip/Tooltip";
 import Button from "../Main/Button/Button";
 import { useEffect } from "preact/compat";
+import useCopyToClipboard from "../../hooks/useCopyToClipboard";
 
 type OrderDir = "asc" | "desc"
 
@@ -22,6 +23,8 @@ interface TableProps<T> {
 }
 
 const Table = <T extends object>({ rows, columns, defaultOrderBy, defaultOrderDir, copyToClipboard, paginationOffset }: TableProps<T>) => {
+  const handleCopyToClipboard = useCopyToClipboard();
+
   const [orderBy, setOrderBy] = useState<keyof T>(defaultOrderBy);
   const [orderDir, setOrderDir] = useState<OrderDir>(defaultOrderDir || "desc");
   const [copied, setCopied] = useState<number | null>(null);
@@ -42,7 +45,7 @@ const Table = <T extends object>({ rows, columns, defaultOrderBy, defaultOrderDi
   const createCopyHandler = (copyValue:  string | number, rowIndex: number) => async () => {
     if (copied === rowIndex) return;
     try {
-      await navigator.clipboard.writeText(String(copyValue));
+      await handleCopyToClipboard(String(copyValue));
       setCopied(rowIndex);
     } catch (e) {
       console.error(e);

app/vmui/packages/vmui/src/components/Views/GraphView/GraphView.tsx

@@ -26,6 +26,7 @@ import useElementSize from "../../../hooks/useElementSize";
 import { ChartTooltipProps } from "../../Chart/ChartTooltip/ChartTooltip";
 import LegendAnomaly from "../../Chart/Line/LegendAnomaly/LegendAnomaly";
 import { groupByMultipleKeys } from "../../../utils/array";
+import { useGraphDispatch } from "../../../state/graph/GraphStateContext";
 
 export interface GraphViewProps {
   data?: MetricResult[];
@@ -62,6 +63,8 @@ const GraphView: FC<GraphViewProps> = ({
   isAnomalyView,
   spanGaps
 }) => {
+  const graphDispatch = useGraphDispatch();
+
   const { isMobile } = useDeviceDetect();
   const { timezone } = useTimeState();
   const currentStep = useMemo(() => customStep || period.step || "1s", [period.step, customStep]);
@@ -196,6 +199,26 @@ const GraphView: FC<GraphViewProps> = ({
 
   const [containerRef, containerSize] = useElementSize();
 
+  const hasTimeData = dataChart[0]?.length > 0;
+
+  useEffect(() => {
+    const checkEmptyHistogram = () => {
+      if (!isHistogram || !data[1]) {
+        return false;
+      }
+
+      try {
+        const values = (dataChart?.[1]?.[2] || []) as (number | null)[];
+        return values.every(v => v === null);
+      } catch (e) {
+        return false;
+      }
+    };
+
+    const isEmpty = checkEmptyHistogram();
+    graphDispatch({ type: "SET_IS_EMPTY_HISTOGRAM", payload: isEmpty });
+  }, [dataChart, isHistogram]);
+
   return (
     <div
       className={classNames({
@@ -205,7 +228,7 @@ const GraphView: FC<GraphViewProps> = ({
       })}
       ref={containerRef}
     >
-      {!isHistogram && (
+      {!isHistogram && hasTimeData && (
         <LineChart
           data={dataChart}
           series={series}

app/vmui/packages/vmui/src/hooks/useFetchQuery.ts

@@ -13,6 +13,7 @@ import { isHistogramData } from "../utils/metric";
 import { useGraphState } from "../state/graph/GraphStateContext";
 import { getStepFromDuration } from "../utils/time";
 import { AppType } from "../types/appType";
+import { getQueryStringValue } from "../utils/query-string";
 
 interface FetchQueryParams {
   predefinedQuery?: string[]
@@ -132,7 +133,8 @@ export const useFetchQuery = ({
             tempTraces.push(trace);
           }
 
-          isHistogramResult = !isAnomalyUI && isDisplayChart && isHistogramData(resp.data.result);
+          const preventChangeType = !!getQueryStringValue("display_mode", null);
+          isHistogramResult = !isAnomalyUI && isDisplayChart && !preventChangeType && isHistogramData(resp.data.result);
           seriesLimit = isHistogramResult ? Infinity : defaultLimit;
           const freeTempSize = seriesLimit - tempData.length;
           resp.data.result.slice(0, freeTempSize).forEach((d: MetricBase) => {

app/vmui/packages/vmui/src/pages/CustomPanel/CustomPanelTabs/GraphTab.tsx

@@ -47,7 +47,9 @@ const GraphTab: FC<Props> = ({ isHistogram, graphData, controlsRef, isAnomalyVie
     <div className="vm-custom-panel-body-header__graph-controls">
       <GraphTips/>
       <GraphSettings
+        data={graphData}
         yaxis={yaxis}
+        isHistogram={isHistogram}
         setYaxisLimits={setYaxisLimits}
         toggleEnableLimits={toggleEnableLimits}
         spanGaps={{ value: spanGaps, onChange: setSpanGaps }}

app/vmui/packages/vmui/src/pages/CustomPanel/WarningHeatmapToLine/WarningHeatmapToLine.tsx

@@ -0,0 +1,37 @@
+import React, { FC } from "preact/compat";
+import Alert from "../../../components/Main/Alert/Alert";
+import { useGraphState } from "../../../state/graph/GraphStateContext";
+import {
+  useChangeDisplayMode
+} from "../../../components/Configurators/GraphSettings/GraphTypeSwitcher/useChangeDisplayMode";
+import Button from "../../../components/Main/Button/Button";
+import "./style.scss";
+
+const WarningHeatmapToLine:FC = () => {
+  const { isEmptyHistogram } = useGraphState();
+  const { handleChange } = useChangeDisplayMode();
+
+  if (!isEmptyHistogram) return null;
+
+  return (
+    <Alert variant="warning">
+      <div className="vm-warning-heatmap-to-line">
+        <p className="vm-warning-heatmap-to-line__text">
+         The expression cannot be displayed as a heatmap.
+         To make the graph work, disable the heatmap in the &quot;Graph settings&quot; or modify the expression.
+        </p>
+
+        <Button
+          size="small"
+          color="primary"
+          variant="text"
+          onClick={() => handleChange(false)}
+        >
+          Switch to line chart
+        </Button>
+      </div>
+    </Alert>
+  );
+};
+
+export default WarningHeatmapToLine;

app/vmui/packages/vmui/src/pages/CustomPanel/WarningHeatmapToLine/style.scss

@@ -0,0 +1,7 @@
+@use "src/styles/variables" as *;
+
+.vm-warning-heatmap-to-line {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+}

app/vmui/packages/vmui/src/pages/CustomPanel/index.tsx

@@ -18,6 +18,7 @@ import WarningLimitSeries from "./WarningLimitSeries/WarningLimitSeries";
 import CustomPanelTabs from "./CustomPanelTabs";
 import { DisplayType } from "../../types";
 import DownloadReport from "./DownloadReport/DownloadReport";
+import WarningHeatmapToLine from "./WarningHeatmapToLine/WarningHeatmapToLine";
 
 const CustomPanel: FC = () => {
   useSetQueryParams();
@@ -93,6 +94,7 @@ const CustomPanel: FC = () => {
       />
       {showError && <Alert variant="error">{error}</Alert>}
       {showInstantQueryTip && <Alert variant="info"><InstantQueryTip/></Alert>}
+      <WarningHeatmapToLine/>
       {warning && (
         <WarningLimitSeries
           warning={warning}

app/vmui/packages/vmui/src/pages/ExploreLogs/GroupLogs/GroupLogsItem.tsx

@@ -40,7 +40,7 @@ const GroupLogsItem: FC<Props> = ({ log, displayFields = ["_msg"] }) => {
     return marked(log._msg.replace(/```/g, "\n```\n")) as string;
   }, [log._msg, markdownParsing]);
 
-  const fields = useMemo(() => Object.entries(log).filter(([key]) => key !== "_msg"), [log]);
+  const fields = useMemo(() => Object.entries(log), [log]);
   const hasFields = fields.length > 0;
 
   const displayMessage = useMemo(() => {

app/vmui/packages/vmui/src/pages/ExploreLogs/hooks/useFetchLogHits.ts

@@ -66,7 +66,7 @@ export const useFetchLogHits = (server: string, query: string) => {
         setError(error);
       }
 
-      setLogHits(hits.map(hit => ({ ...hit, _isOther: isEmptyObject(hit.fields) })));
+      setLogHits(hits.map(markIsOther).sort(sortHits));
     } catch (e) {
       if (e instanceof Error && e.name !== "AbortError") {
         setError(String(e));
@@ -85,3 +85,18 @@ export const useFetchLogHits = (server: string, query: string) => {
     abortController: abortControllerRef.current
   };
 };
+
+
+// Helper function to check if a hit is "other"
+const markIsOther = (hit: LogHits) => ({
+  ...hit,
+  _isOther: isEmptyObject(hit.fields)
+});
+
+// Comparison function for sorting hits
+const sortHits = (a: LogHits, b: LogHits) => {
+  if (a._isOther !== b._isOther) {
+    return a._isOther ? -1 : 1; // "Other" hits first to avoid graph overlap
+  }
+  return b.total - a.total; // Sort remaining by total for better visibility
+};

app/vmui/packages/vmui/src/pages/PredefinedPanels/PredefinedPanel/PredefinedPanel.tsx

@@ -119,6 +119,7 @@ const PredefinedPanel: FC<PredefinedPanelsProps> = ({
         {title || ""}
       </h3>
       <GraphSettings
+        data={graphData || []}
         yaxis={yaxis}
         setYaxisLimits={setYaxisLimits}
         toggleEnableLimits={toggleEnableLimits}

app/vmui/packages/vmui/src/pages/QueryAnalyzer/QueryAnalyzerView/QueryAnalyzerView.tsx

@@ -20,6 +20,8 @@ import TableSettings from "../../../components/Table/TableSettings/TableSettings
 import { getColumns } from "../../../hooks/useSortedCategories";
 import { useCustomPanelDispatch, useCustomPanelState } from "../../../state/customPanel/CustomPanelStateContext";
 import TableView from "../../../components/Views/TableView/TableView";
+import { useSearchParams } from "react-router-dom";
+import WarningHeatmapToLine from "../../CustomPanel/WarningHeatmapToLine/WarningHeatmapToLine";
 
 type Props = {
   data: DataAnalyzerType[];
@@ -28,6 +30,8 @@ type Props = {
 
 const QueryAnalyzerView: FC<Props> = ({ data, period }) => {
   const { isMobile } = useDeviceDetect();
+  const [searchParams, setSearchParams] = useSearchParams();
+
   const { tableCompact } = useCustomPanelState();
   const customPanelDispatch = useCustomPanelDispatch();
 
@@ -101,11 +105,16 @@ const QueryAnalyzerView: FC<Props> = ({ data, period }) => {
     setQueries(tempQueries);
     setGraphData(tempGraphData);
     setLiveData(tempLiveData);
+
+    // reset display mode
+    searchParams.delete("display_mode");
+    setSearchParams(searchParams);
   }, [data]);
 
   useEffect(() => {
-    setIsHistogram(!!graphData && isHistogramData(graphData));
-  }, [graphData]);
+    const noSpecificDisplayMode = !searchParams.get("display_mode");
+    setIsHistogram(!!graphData && noSpecificDisplayMode && isHistogramData(graphData));
+  }, [graphData, searchParams]);
 
   return (
     <div
@@ -120,6 +129,7 @@ const QueryAnalyzerView: FC<Props> = ({ data, period }) => {
           onDeleteClick={handleTraceDelete}
         />
       )}
+      <WarningHeatmapToLine/>
       <div
         className={classNames({
           "vm-block": true,
@@ -138,7 +148,9 @@ const QueryAnalyzerView: FC<Props> = ({ data, period }) => {
             {displayType === "chart" && <GraphTips/>}
             {displayType === "chart" && (
               <GraphSettings
+                data={graphData || []}
                 yaxis={yaxis}
+                isHistogram={isHistogram}
                 setYaxisLimits={setYaxisLimits}
                 toggleEnableLimits={toggleEnableLimits}
                 spanGaps={{ value: spanGaps, onChange: setSpanGaps }}

app/vmui/packages/vmui/src/state/graph/reducer.ts

@@ -15,6 +15,7 @@ export interface GraphState {
   customStep: string
   yaxis: YaxisState
   isHistogram: boolean
+  isEmptyHistogram: boolean
   /** when true, null data values will not cause line breaks */
   spanGaps: boolean
 }
@@ -24,6 +25,7 @@ export type GraphAction =
   | { type: "SET_YAXIS_LIMITS", payload: AxisRange }
   | { type: "SET_CUSTOM_STEP", payload: string}
   | { type: "SET_IS_HISTOGRAM", payload: boolean }
+  | { type: "SET_IS_EMPTY_HISTOGRAM", payload: boolean }
   | { type: "SET_SPAN_GAPS", payload: boolean }
 
 export const initialGraphState: GraphState = {
@@ -32,6 +34,7 @@ export const initialGraphState: GraphState = {
     limits: { enable: false, range: { "1": [0, 0] } }
   },
   isHistogram: false,
+  isEmptyHistogram: false,
   spanGaps: false,
 };
 
@@ -69,6 +72,11 @@ export function reducer(state: GraphState, action: GraphAction): GraphState {
         ...state,
         isHistogram: action.payload
       };
+    case "SET_IS_EMPTY_HISTOGRAM":
+      return {
+        ...state,
+        isEmptyHistogram: action.payload
+      };
     case "SET_SPAN_GAPS":
       return {
         ...state,

app/vmui/packages/vmui/src/utils/uplot/heatmap.ts

@@ -153,7 +153,10 @@ export const normalizeData = (buckets: MetricResult[], isHistogram?: boolean): M
   const totalHitsPerTimestamp: { [timestamp: number]: number } = {};
   vmBuckets.forEach(bucket =>
     bucket.values.forEach(([timestamp, value]) => {
-      totalHitsPerTimestamp[timestamp] = (totalHitsPerTimestamp[timestamp] || 0) + +value;
+      const valueNum = Number(value);
+      const number = isNaN(valueNum) ? 0 : valueNum;
+      const prevTotal = totalHitsPerTimestamp[timestamp] || 0;
+      totalHitsPerTimestamp[timestamp] = prevTotal + number;
     })
   );
 

apptest/testcase.go

@@ -2,6 +2,8 @@ package apptest
 
 import (
 	"fmt"
+	"os"
+	"path"
 	"testing"
 	"time"
 
@@ -134,6 +136,23 @@ func (c *vmcluster) ForceFlush(t *testing.T) {
 	}
 }
 
+// MustStartVmauth is a test helper function that starts an instance of
+// vmauth and fails the test if the app fails to start.
+func (tc *TestCase) MustStartVmauth(instance string, flags []string, configFileYAML string) *Vmauth {
+	tc.t.Helper()
+
+	configFilePath := path.Join(tc.t.TempDir(), "config.yaml")
+	if err := os.WriteFile(configFilePath, []byte(configFileYAML), os.ModePerm); err != nil {
+		tc.t.Fatalf("cannot init vmauth: config file write failed: %s", err)
+	}
+	app, err := StartVmauth(instance, flags, tc.cli, configFilePath)
+	if err != nil {
+		tc.t.Fatalf("Could not start %s: %v", instance, err)
+	}
+	tc.addApp(instance, app)
+	return app
+}
+
 // MustStartDefaultCluster starts a typical cluster configuration with default
 // flags.
 func (tc *TestCase) MustStartDefaultCluster() PrometheusWriteQuerier {

apptest/tests/sparse_cache_test.go

@@ -1,76 +0,0 @@
-package tests
-
-import (
-	"fmt"
-	"math/rand/v2"
-	"testing"
-	"time"
-
-	"github.com/VictoriaMetrics/VictoriaMetrics/apptest"
-)
-
-func TestStorageUsesSparseCacheForFinalMerge(t *testing.T) {
-	tc := apptest.NewTestCase(t)
-	defer tc.Stop()
-
-	sut := tc.MustStartVmsingle("sparse-cache-final-merge", []string{`-retentionPeriod=100y`, `-downsampling.period={__name__=~"metric.*"}:5m:1s`})
-
-	// insert metrics daily over past 2 months
-	const metricsPerStep = 10
-	const steps = 35
-	const stepSize = int64(1 * 24 * 60 * 60 * 1000)
-	records := make([]string, metricsPerStep)
-	ts := time.Now().Add(-2 * 30 * 24 * time.Hour).UnixMilli()
-	for range steps {
-		for i := range metricsPerStep {
-			name := fmt.Sprintf("metric_%d", i)
-			records[i] = fmt.Sprintf("%s %d %d", name, rand.IntN(1000), ts)
-		}
-		sut.PrometheusAPIV1ImportPrometheus(t, records, apptest.QueryOpts{})
-		ts += stepSize
-	}
-	sut.ForceFlush(t)
-	sut.ForceMerge(t)
-
-	// todo: replace with a more reliable way to check if the merge is completed
-	// wait for merge to be completed
-	time.Sleep(5 * time.Second)
-
-	v := sut.GetIntMetric(t, `vm_cache_requests_total{type="indexdb/dataBlocksSparse"}`)
-	if v <= 0 {
-		t.Fatalf(`unexpected vm_cache_requests_total{type="indexdb/dataBlocksSparse"} value: %d`, v)
-	}
-}
-
-func TestStorageDoesNotUseSparseCacheForRegularMerge(t *testing.T) {
-	tc := apptest.NewTestCase(t)
-	defer tc.Stop()
-
-	sut := tc.MustStartVmsingle("sparse-cache-regular-merge", []string{`-retentionPeriod=100y`, `-downsampling.period={__name__=~"metric.*"}:5m:1s`})
-
-	// insert metrics into current month only
-	const metricsPerStep = 10
-	const steps = 2
-	const stepSize = 60 * 1000
-	records := make([]string, metricsPerStep)
-	ts := time.Now().Add(-1 * time.Hour).UnixMilli()
-	for range steps {
-		for i := range metricsPerStep {
-			name := fmt.Sprintf("metric_%d", i)
-			records[i] = fmt.Sprintf("%s %d %d", name, rand.IntN(1000), ts)
-		}
-		sut.PrometheusAPIV1ImportPrometheus(t, records, apptest.QueryOpts{})
-		ts += stepSize
-	}
-	sut.ForceFlush(t)
-	sut.ForceMerge(t)
-
-	// todo: replace with a more reliable way to check if the merge is completed
-	// wait for merge to be completed
-	time.Sleep(5 * time.Second)
-
-	v := sut.GetIntMetric(t, `vm_cache_requests_total{type="indexdb/dataBlocksSparse"}`)
-	if v == 0 {
-		t.Fatalf(`unexpected vm_cache_requests_total{type="indexdb/dataBlocksSparse"} value: %d`, v)
-	}
-}

apptest/tests/vmauth_routing_test.go

@@ -0,0 +1,182 @@
+package tests
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+
+	"github.com/VictoriaMetrics/VictoriaMetrics/apptest"
+)
+
+func TestVMAuthRouterWithAuth(t *testing.T) {
+	tc := apptest.NewTestCase(t)
+	defer tc.Stop()
+
+	var authorizedRequestsCount, unauthorizedRequestsCount int
+	backendWithAuth := httptest.NewServer(http.HandlerFunc(func(_ http.ResponseWriter, _ *http.Request) {
+		authorizedRequestsCount++
+	}))
+	defer backendWithAuth.Close()
+	backend := httptest.NewServer(http.HandlerFunc(func(_ http.ResponseWriter, _ *http.Request) {
+		unauthorizedRequestsCount++
+	}))
+	defer backend.Close()
+
+	authConfig := fmt.Sprintf(`
+users:
+- name: user1
+  username: ba-username
+  password: ba-password
+  url_prefix: %s
+unauthorized_user:
+   url_map:
+   - src_paths:
+     - /backend/health
+     - /backend/ready
+     url_prefix: %s
+  `, backendWithAuth.URL, backend.URL)
+
+	vmauth := tc.MustStartVmauth("vmauth", nil, authConfig)
+
+	makeGetRequestExpectCode := func(prepareRequest func(*http.Request), expectCode int) {
+		t.Helper()
+		req, err := http.NewRequest("GET", fmt.Sprintf("http://%s", vmauth.GetHTTPListenAddr()), nil)
+		if err != nil {
+			t.Fatalf("cannot build http.Request: %s", err)
+		}
+		prepareRequest(req)
+		resp, err := http.DefaultClient.Do(req)
+		if err != nil {
+			t.Fatalf("cannot make http.Get request for target=%q: %s", req.URL, err)
+		}
+		responseText, err := io.ReadAll(resp.Body)
+		if err != nil {
+			t.Fatalf("cannot read response body: %s", err)
+		}
+		resp.Body.Close()
+		if resp.StatusCode != expectCode {
+			t.Fatalf("unexpected http response code: %d, want: %d, response text: %s", resp.StatusCode, expectCode, responseText)
+		}
+	}
+	assertBackendsRequestsCount := func(expectAuthorized, expectUnauthorized int) {
+		t.Helper()
+		if expectAuthorized != authorizedRequestsCount {
+			t.Fatalf("expected to have %d authorized proxied requests, got: %d", expectAuthorized, authorizedRequestsCount)
+		}
+
+		if expectUnauthorized != unauthorizedRequestsCount {
+			t.Fatalf("expected to have %d unauthorized proxied requests, got: %d", expectUnauthorized, unauthorizedRequestsCount)
+		}
+
+	}
+
+	makeGetRequestExpectCode(func(r *http.Request) {
+		r.URL.Path = "/backend/api"
+		r.URL.User = url.UserPassword("ba-username", "ba-password")
+	}, http.StatusOK)
+	assertBackendsRequestsCount(1, 0)
+
+	makeGetRequestExpectCode(func(r *http.Request) {
+		r.URL.Path = "/backend/health"
+	}, http.StatusOK)
+	assertBackendsRequestsCount(1, 1)
+
+	// remove unauthorized section and proxy only specified path for authorized
+	vmauth.UpdateConfiguration(t, fmt.Sprintf(`
+users:
+- name: user1
+  username: ba-username
+  password: ba-password
+  url_map:
+  - src_paths:
+    - /backend/health
+    url_prefix: %s
+`, backendWithAuth.URL))
+
+	// ensure unauthorized requests no longer served
+	makeGetRequestExpectCode(func(r *http.Request) {
+		r.URL.Path = "/backend/health"
+	}, http.StatusUnauthorized)
+	assertBackendsRequestsCount(1, 1)
+
+	makeGetRequestExpectCode(func(r *http.Request) {
+		r.URL.User = url.UserPassword("ba-username", "ba-password")
+		r.URL.Path = "/backend/health"
+	}, http.StatusOK)
+	assertBackendsRequestsCount(2, 1)
+
+	// url path is missing at proxy configuration
+	makeGetRequestExpectCode(func(r *http.Request) {
+		r.URL.User = url.UserPassword("ba-username", "ba-password")
+		r.URL.Path = "/backend"
+	}, http.StatusBadRequest)
+	assertBackendsRequestsCount(2, 1)
+
+}
+
+func TestVMAuthRouterWithInternalAddr(t *testing.T) {
+	tc := apptest.NewTestCase(t)
+	defer tc.Stop()
+
+	var proxiedRequestsCount int
+	backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(http.StatusOK)
+		proxiedRequestsCount++
+	}))
+	defer backend.Close()
+
+	authConfig := fmt.Sprintf(`
+unauthorized_user:
+   url_prefix: %s
+  `, backend.URL)
+
+	const (
+		// it's not possible to use random ports
+		// since it makes test flaky
+		listenPortPublic  = "50127"
+		listenPortPrivate = "50126"
+	)
+
+	vmauthFlags := []string{
+		fmt.Sprintf("-httpListenAddr=127.0.0.1:%s", listenPortPublic),
+		fmt.Sprintf("-httpInternalListenAddr=127.0.0.1:%s", listenPortPrivate),
+		"-flagsAuthKey=protected",
+	}
+	vmauth := tc.MustStartVmauth("vmauth", vmauthFlags, authConfig)
+
+	makeGetRequestExpectCode := func(targetURL string, expectCode int) {
+		t.Helper()
+		resp, err := http.Get(targetURL)
+		if err != nil {
+			t.Fatalf("cannot make http.Get request for target=%q: %s", targetURL, err)
+		}
+		responseText, err := io.ReadAll(resp.Body)
+		if err != nil {
+			t.Fatalf("cannot read response body: %s", err)
+		}
+		resp.Body.Close()
+		if resp.StatusCode != expectCode {
+			t.Fatalf("unexpected http response code: %d, want: %d, response text: %s", resp.StatusCode, expectCode, responseText)
+		}
+	}
+	assertBackendRequestsCount := func(expected int) {
+		t.Helper()
+		if proxiedRequestsCount != expected {
+			t.Fatalf("expected to have %d proxied requests, got: %d", expected, proxiedRequestsCount)
+		}
+	}
+	// built-in http server must reject request, since it protected with authKey
+	makeGetRequestExpectCode(fmt.Sprintf("http://127.0.0.1:%s/flags", listenPortPrivate), http.StatusUnauthorized)
+	assertBackendRequestsCount(0)
+
+	makeGetRequestExpectCode(fmt.Sprintf("http://127.0.0.1:%s/flags", listenPortPublic), http.StatusOK)
+	assertBackendRequestsCount(1)
+
+	// reload config and ensure that vmauth no longer proxies requests to the backend
+	vmauth.UpdateConfiguration(t, "")
+	makeGetRequestExpectCode(fmt.Sprintf("http://127.0.0.1:%s/flags", listenPortPrivate), http.StatusUnauthorized)
+	assertBackendRequestsCount(1)
+}

apptest/vmauth.go

@@ -0,0 +1,82 @@
+package apptest
+
+import (
+	"fmt"
+	"os"
+	"regexp"
+	"syscall"
+	"testing"
+	"time"
+)
+
+var httpBuilitinListenAddrRE = regexp.MustCompile(`pprof handlers are exposed at http://(.*:\d{1,5})/debug/pprof/`)
+
+// Vmauth holds the state of a vmauth app and provides vmauth-specific
+// functions.
+type Vmauth struct {
+	*app
+	*ServesMetrics
+
+	httpListenAddr string
+	configFilePath string
+	cli            *Client
+}
+
+// StartVmauth starts an instance of vmauth with the given flags. It also
+// sets the default flags and populates the app instance state with runtime
+// values extracted from the application log (such as httpListenAddr)
+func StartVmauth(instance string, flags []string, cli *Client, configFilePath string) (*Vmauth, error) {
+	extractREs := []*regexp.Regexp{
+		httpBuilitinListenAddrRE,
+	}
+
+	app, stderrExtracts, err := startApp(instance, "../../bin/vmauth", flags, &appOptions{
+		defaultFlags: map[string]string{
+			"-httpListenAddr": "127.0.0.1:0",
+			"-auth.config":    configFilePath,
+		},
+		extractREs: extractREs,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return &Vmauth{
+		app: app,
+		ServesMetrics: &ServesMetrics{
+			metricsURL: fmt.Sprintf("http://%s/metrics", stderrExtracts[0]),
+			cli:        cli,
+		},
+		httpListenAddr: stderrExtracts[0],
+		configFilePath: configFilePath,
+		cli:            cli,
+	}, nil
+}
+
+// UpdateConfiguration performs configuration file reload for app and waits for configuration apply
+//
+// Due to second prescision of config reload metric, config cannot be reloaded more than 1 time in a second
+func (app *Vmauth) UpdateConfiguration(t *testing.T, configFileYAML string) {
+	t.Helper()
+	ct := int(time.Now().Unix())
+	if err := os.WriteFile(app.configFilePath, []byte(configFileYAML), os.ModePerm); err != nil {
+		t.Fatalf("unexpected error at UpdateConfiguration, cannot write configFile content: %s", err)
+	}
+	if err := app.process.Signal(syscall.SIGHUP); err != nil {
+		t.Fatalf("unexpected signal error: %s", err)
+	}
+	for range 10 {
+		ts := app.GetIntMetric(t, "vmauth_config_last_reload_success_timestamp_seconds")
+		if ts < ct {
+			time.Sleep(time.Millisecond * 100)
+			continue
+		}
+		return
+	}
+	t.Fatalf("timeout waiting for config reload success")
+}
+
+// GetHTTPListenAddr returns listen http addr
+func (app *Vmauth) GetHTTPListenAddr() string {
+	return app.httpListenAddr
+}

apptest/vmsingle.go

@@ -24,7 +24,6 @@ type Vmsingle struct {
 
 	// vmstorage URLs.
 	forceFlushURL string
-	forceMergeURL string
 
 	// vminsert URLs.
 	influxLineWriteURL                 string
@@ -66,7 +65,6 @@ func StartVmsingle(instance string, flags []string, cli *Client) (*Vmsingle, err
 		httpListenAddr:  stderrExtracts[1],
 
 		forceFlushURL:                      fmt.Sprintf("http://%s/internal/force_flush", stderrExtracts[1]),
-		forceMergeURL:                      fmt.Sprintf("http://%s/internal/force_merge", stderrExtracts[1]),
 		influxLineWriteURL:                 fmt.Sprintf("http://%s/influx/write", stderrExtracts[1]),
 		prometheusAPIV1ImportPrometheusURL: fmt.Sprintf("http://%s/prometheus/api/v1/import/prometheus", stderrExtracts[1]),
 		prometheusAPIV1WriteURL:            fmt.Sprintf("http://%s/prometheus/api/v1/write", stderrExtracts[1]),
@@ -85,13 +83,6 @@ func (app *Vmsingle) ForceFlush(t *testing.T) {
 	app.cli.Get(t, app.forceFlushURL, http.StatusOK)
 }
 
-// ForceMerge is a test helper function that forces the merging of parts.
-func (app *Vmsingle) ForceMerge(t *testing.T) {
-	t.Helper()
-
-	app.cli.Get(t, app.forceMergeURL, http.StatusOK)
-}
-
 // InfluxWrite is a test helper function that inserts a
 // collection of records in Influx line format by sending a HTTP
 // POST request to /influx/write vmsingle endpoint.

apptest/vmstorage.go

@@ -21,7 +21,6 @@ type Vmstorage struct {
 	vmselectAddr    string
 
 	forceFlushURL string
-	forceMergeURL string
 }
 
 // StartVmstorage starts an instance of vmstorage with the given flags. It also
@@ -58,7 +57,6 @@ func StartVmstorage(instance string, flags []string, cli *Client) (*Vmstorage, e
 		vmselectAddr:    stderrExtracts[3],
 
 		forceFlushURL: fmt.Sprintf("http://%s/internal/force_flush", stderrExtracts[1]),
-		forceMergeURL: fmt.Sprintf("http://%s/internal/force_merge", stderrExtracts[1]),
 	}, nil
 }
 
@@ -82,12 +80,6 @@ func (app *Vmstorage) ForceFlush(t *testing.T) {
 	app.cli.Get(t, app.forceFlushURL, http.StatusOK)
 }
 
-// ForceMerge is a test helper function that forces the merging of parts.
-func (app *Vmstorage) ForceMerge(t *testing.T) {
-	t.Helper()
-	app.cli.Get(t, app.forceMergeURL, http.StatusOK)
-}
-
 // String returns the string representation of the vmstorage app state.
 func (app *Vmstorage) String() string {
 	return fmt.Sprintf("{app: %s storageDataPath: %q httpListenAddr: %q vminsertAddr: %q vmselectAddr: %q}", []any{

dashboards/victoriametrics-cluster.json

@@ -3167,7 +3167,7 @@
             "type": "prometheus",
             "uid": "$ds"
           },
-          "description": "The percentage of slow inserts comparing to total insertion rate during the last 5 minutes. \n\nThe less value is better. If percentage remains high (>10%) during extended periods of time, then it is likely more RAM is needed for optimal handling of the current number of [active time series](https://docs.victoriametrics.com/faq/#what-is-an-active-time-series). \n\nIn general, VictoriaMetrics requires ~1KB or RAM per active time series, so it should be easy calculating the required amounts of RAM for the current workload according to capacity planning docs. But the resulting number may be far from the real number because the required amounts of memory depends on many other factors such as the number of labels per time series and the length of label values. See also [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3976#issuecomment-1476883183) for details.",
+          "description": "The percentage of [slow inserts](https://docs.victoriametrics.com/faq/#what-is-a-slow-insert) compared to the total ingestion rate. \\n\\nThe lower the better. \\n\\nIn short, slow insert is a cache miss. There are following reasons for slow inserts to go up: \\n* Ingestion of completely new, not seen before time series;\\n* [Re-routing](https://docs.victoriametrics.com/cluster-victoriametrics/#cluster-availability) of series when one or more vmstorage nodes are unavailable;\\n* Not enough memory to maintain big enough caches for the current workload.\\n\\nIf percentage remains high (>10%) during extended periods of time, then it is likely more RAM is needed for optimal handling of the current number of [active time series](https://docs.victoriametrics.com/faq/#what-is-an-active-time-series). \\n\\nSee [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3976#issuecomment-1476883183) for details.",
           "fieldConfig": {
             "defaults": {
               "color": {

dashboards/victoriametrics.json

@@ -3448,7 +3448,7 @@
             "type": "prometheus",
             "uid": "$ds"
           },
-          "description": "The percentage of slow inserts comparing to total insertion rate during the last 5 minutes. \n\nThe less value is better. If percentage remains high (>10%) during extended periods of time, then it is likely more RAM is needed for optimal handling of the current number of [active time series](https://docs.victoriametrics.com/faq/#what-is-an-active-time-series). \n\nIn general, VictoriaMetrics requires ~1KB or RAM per active time series, so it should be easy calculating the required amounts of RAM for the current workload according to capacity planning docs. But the resulting number may be far from the real number because the required amounts of memory depends on many other factors such as the number of labels per time series and the length of label values. See also [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3976#issuecomment-1476883183) for details.",
+          "description": "The percentage of [slow inserts](https://docs.victoriametrics.com/faq/#what-is-a-slow-insert) compared to the total ingestion rate. \\n\\nThe lower the better. \\n\\nIn short, slow insert is a cache miss. There are following reasons for slow inserts to go up: \\n* Ingestion of completely new, not seen before time series;\\n* Not enough memory to maintain big enough caches for the current workload.\\n\\nIf percentage remains high (>10%) during extended periods of time, then it is likely more RAM is needed for optimal handling of the current number of [active time series](https://docs.victoriametrics.com/faq/#what-is-an-active-time-series). \\n\\nSee [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3976#issuecomment-1476883183) for details.",
           "fieldConfig": {
             "defaults": {
               "color": {

dashboards/vm/victoriametrics-cluster.json

@@ -3168,7 +3168,7 @@
             "type": "victoriametrics-metrics-datasource",
             "uid": "$ds"
           },
-          "description": "The percentage of slow inserts comparing to total insertion rate during the last 5 minutes. \n\nThe less value is better. If percentage remains high (>10%) during extended periods of time, then it is likely more RAM is needed for optimal handling of the current number of [active time series](https://docs.victoriametrics.com/faq/#what-is-an-active-time-series). \n\nIn general, VictoriaMetrics requires ~1KB or RAM per active time series, so it should be easy calculating the required amounts of RAM for the current workload according to capacity planning docs. But the resulting number may be far from the real number because the required amounts of memory depends on many other factors such as the number of labels per time series and the length of label values. See also [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3976#issuecomment-1476883183) for details.",
+          "description": "The percentage of [slow inserts](https://docs.victoriametrics.com/faq/#what-is-a-slow-insert) compared to the total ingestion rate. \\n\\nThe lower the better. \\n\\nIn short, slow insert is a cache miss. There are following reasons for slow inserts to go up: \\n* Ingestion of completely new, not seen before time series;\\n* [Re-routing](https://docs.victoriametrics.com/cluster-victoriametrics/#cluster-availability) of series when one or more vmstorage nodes are unavailable;\\n* Not enough memory to maintain big enough caches for the current workload.\\n\\nIf percentage remains high (>10%) during extended periods of time, then it is likely more RAM is needed for optimal handling of the current number of [active time series](https://docs.victoriametrics.com/faq/#what-is-an-active-time-series). \\n\\nSee [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3976#issuecomment-1476883183) for details.",
           "fieldConfig": {
             "defaults": {
               "color": {

dashboards/vm/victoriametrics.json

@@ -3449,7 +3449,7 @@
             "type": "victoriametrics-metrics-datasource",
             "uid": "$ds"
           },
-          "description": "The percentage of slow inserts comparing to total insertion rate during the last 5 minutes. \n\nThe less value is better. If percentage remains high (>10%) during extended periods of time, then it is likely more RAM is needed for optimal handling of the current number of [active time series](https://docs.victoriametrics.com/faq/#what-is-an-active-time-series). \n\nIn general, VictoriaMetrics requires ~1KB or RAM per active time series, so it should be easy calculating the required amounts of RAM for the current workload according to capacity planning docs. But the resulting number may be far from the real number because the required amounts of memory depends on many other factors such as the number of labels per time series and the length of label values. See also [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3976#issuecomment-1476883183) for details.",
+          "description": "The percentage of [slow inserts](https://docs.victoriametrics.com/faq/#what-is-a-slow-insert) compared to the total ingestion rate. \\n\\nThe lower the better. \\n\\nIn short, slow insert is a cache miss. There are following reasons for slow inserts to go up: \\n* Ingestion of completely new, not seen before time series;\\n* Not enough memory to maintain big enough caches for the current workload.\\n\\nIf percentage remains high (>10%) during extended periods of time, then it is likely more RAM is needed for optimal handling of the current number of [active time series](https://docs.victoriametrics.com/faq/#what-is-an-active-time-series). \\n\\nSee [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3976#issuecomment-1476883183) for details.",
           "fieldConfig": {
             "defaults": {
               "color": {

deployment/docker/Makefile

@@ -6,7 +6,7 @@ ROOT_IMAGE ?= alpine:3.21.2
 ROOT_IMAGE_SCRATCH ?= scratch
 CERTS_IMAGE := alpine:3.21.2
 
-GO_BUILDER_IMAGE := golang:1.23.5-alpine
+GO_BUILDER_IMAGE := golang:1.23.6-alpine
 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 :/ __)
 DOCKER ?= docker

deployment/docker/README.md

@@ -181,7 +181,7 @@ make docker-victorialogs-up
 ```
 
 VictoriaLogs will be accessible on the `--httpListenAddr=:9428` port.
-In addition to VictoriaLogs server, the docker compose contains the following componetns:
+In addition to VictoriaLogs server, the docker compose contains the following components:
 * [vector](https://vector.dev/guides/) service for collecting docker logs and sending them to VictoriaLogs;
 * VictoriaMetrics single server to collect metrics from `VictoriaLogs` and `vector`;
 * [grafana](#grafana) is configured with [VictoriaLogs datasource](https://github.com/VictoriaMetrics/victorialogs-datasource).

deployment/docker/docker-compose-cluster.yml

@@ -20,7 +20,7 @@ services:
   # Grafana instance configured with VictoriaMetrics as datasource
   grafana:
     container_name: grafana
-    image: grafana/grafana:10.4.2
+    image: grafana/grafana:11.5.0
     depends_on:
       - "vmauth"
     ports:
@@ -152,7 +152,7 @@ services:
   # and distributes them according to --config.file.
   alertmanager:
     container_name: alertmanager
-    image: prom/alertmanager:v0.27.0
+    image: prom/alertmanager:v0.28.0
     volumes:
       - ./alertmanager.yml:/config/alertmanager.yml
     command:

deployment/docker/docker-compose-victorialogs.yml

@@ -2,7 +2,7 @@ services:
   # Grafana instance configured with VictoriaLogs as datasource
   grafana:
     container_name: grafana
-    image: grafana/grafana:10.4.2
+    image: grafana/grafana:11.5.0
     depends_on:
       - "victoriametrics"
       - "victorialogs"
@@ -16,8 +16,7 @@ services:
       - ./../../dashboards/victoriametrics.json:/var/lib/grafana/dashboards/vm.json
       - ./../../dashboards/victorialogs.json:/var/lib/grafana/dashboards/vl.json
     environment:
-      - "GF_INSTALL_PLUGINS=https://github.com/VictoriaMetrics/victorialogs-datasource/releases/download/v0.13.4/victoriametrics-logs-datasource-v0.13.4.zip;victoriametrics-logs-datasource"
-      - "GF_PLUGINS_ALLOW_LOADING_UNSIGNED_PLUGINS=victoriametrics-logs-datasource"
+      - "GF_INSTALL_PLUGINS=victoriametrics-logs-datasource"
     networks:
       - vm_net
     restart: always
@@ -127,7 +126,7 @@ services:
   # and distributes them according to --config.file.
   alertmanager:
     container_name: alertmanager
-    image: prom/alertmanager:v0.27.0
+    image: prom/alertmanager:v0.28.0
     volumes:
       - ./alertmanager.yml:/config/alertmanager.yml
     command:

deployment/docker/docker-compose.yml

@@ -46,7 +46,7 @@ services:
   # Grafana instance configured with VictoriaMetrics as datasource
   grafana:
     container_name: grafana
-    image: grafana/grafana:10.4.2
+    image: grafana/grafana:11.5.0
     depends_on:
       - "victoriametrics"
     ports:
@@ -93,7 +93,7 @@ services:
   # and distributes them according to --config.file.
   alertmanager:
     container_name: alertmanager
-    image: prom/alertmanager:v0.27.0
+    image: prom/alertmanager:v0.28.0
     volumes:
       - ./alertmanager.yml:/config/alertmanager.yml
     command:

deployment/docker/rules/alerts-vmagent.yml

@@ -80,8 +80,9 @@ groups:
           summary: "Remote write connection from \"{{ $labels.job }}\" (instance {{ $labels.instance }}) to {{ $labels.url }} is saturated"
           description: "The remote write connection between vmagent \"{{ $labels.job }}\" (instance {{ $labels.instance }}) and destination \"{{ $labels.url }}\"
             is saturated by more than 90% and vmagent won't be able to keep up.\n
-            This usually means that `-remoteWrite.queues` command-line flag must be increased in order to increase
-            the number of connections per each remote storage."
+            There could be the following reasons for this:\n
+             * vmagent can't send data fast enough through the existing network connections. Increase `-remoteWrite.queues` cmd-line flag value to establish more connections per destination.\n
+             * remote destination can't accept data fast enough. Check if remote destination has enough resources for processing."
 
       - alert: PersistentQueueForWritesIsSaturated
         expr: rate(vm_persistentqueue_write_duration_seconds_total[5m]) > 0.9

deployment/docker/vm-datasource/docker-compose-cluster.yml

@@ -1,21 +1,19 @@
 services:
   grafana:
     container_name: grafana
-    image: grafana/grafana:10.4.2
+    image: grafana/grafana:11.5.0
     depends_on:
       - "vmauth"
     ports:
       - 3000:3000
     volumes:
       - grafanadata:/var/lib/grafana
-      - ./provisioning/datasources/victoriametrics-datasource/cluster.yml:/etc/grafana/provisioning/datasources/cluster.yml
+      - ./provisioning/datasources/victoriametrics-metrics-datasource/cluster.yml:/etc/grafana/provisioning/datasources/cluster.yml
       - ./provisioning/dashboards:/etc/grafana/provisioning/dashboards
-      - ./provisioning/plugins/:/var/lib/grafana/plugins
       - ./../../dashboards/vm/victoriametrics-cluster.json:/var/lib/grafana/dashboards/vm.json
       - ./../../dashboards/vm/vmagent.json:/var/lib/grafana/dashboards/vmagent.json
       - ./../../dashboards/vm/vmalert.json:/var/lib/grafana/dashboards/vmalert.json
       - ./../../dashboards/vm/vmauth.json:/var/lib/grafana/dashboards/vmauth.json
     environment:
-      - "GF_INSTALL_PLUGINS=https://github.com/VictoriaMetrics/victoriametrics-datasource/releases/download/v0.12.1/victoriametrics-metrics-datasource-v0.12.1.zip;victoriametrics-metrics-datasource"
-      - "GF_PLUGINS_ALLOW_LOADING_UNSIGNED_PLUGINS=victoriametrics-metrics-datasource"
+      - "GF_INSTALL_PLUGINS=victoriametrics-metrics-datasource"
     restart: always

deployment/docker/vm-datasource/docker-compose.yml

@@ -1,22 +1,20 @@
 services:
   grafana:
     container_name: grafana
-    image: grafana/grafana:10.4.2
+    image: grafana/grafana:11.5.0
     depends_on:
       - "victoriametrics"
     ports:
       - 3000:3000
     volumes:
       - grafanadata:/var/lib/grafana
-      - ./provisioning/datasources/victoriametrics-datasource/single.yml:/etc/grafana/provisioning/datasources/single.yml
+      - ./provisioning/datasources/victoriametrics-metrics-datasource/single.yml:/etc/grafana/provisioning/datasources/single.yml
       - ./provisioning/dashboards:/etc/grafana/provisioning/dashboards
-      - ./provisioning/plugins/:/var/lib/grafana/plugins
       - ./../../dashboards/vm/victoriametrics.json:/var/lib/grafana/dashboards/vm.json
       - ./../../dashboards/vm/vmagent.json:/var/lib/grafana/dashboards/vmagent.json
       - ./../../dashboards/vm/vmalert.json:/var/lib/grafana/dashboards/vmalert.json
     environment:
-      - "GF_INSTALL_PLUGINS=https://github.com/VictoriaMetrics/victoriametrics-datasource/releases/download/v0.12.1/victoriametrics-metrics-datasource-v0.12.1.zip;victoriametrics-metrics-datasource"
-      - "GF_PLUGINS_ALLOW_LOADING_UNSIGNED_PLUGINS=victoriametrics-metrics-datasource"
+      - GF_INSTALL_PLUGINS=victoriametrics-metrics-datasource
     networks:
       - vm_net
     restart: always

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

@@ -89,7 +89,7 @@ services:
       - "--licenseFile=/license"
   alertmanager:
     container_name: alertmanager
-    image: prom/alertmanager:v0.27.0
+    image: prom/alertmanager:v0.28.0
     volumes:
       - ./alertmanager.yml:/config/alertmanager.yml
     command:

deployment/logs-benchmark/docker-compose-elk.yml

@@ -18,7 +18,7 @@ services:
       - vlogs
 
   generator:
-    image: golang:1.23.5-alpine
+    image: golang:1.23.6-alpine
     restart: always
     working_dir: /go/src/app
     volumes:

deployment/logs-benchmark/docker-compose-loki.yml

@@ -2,7 +2,7 @@ version: '3'
 
 services:
   generator:
-    image: golang:1.23.5-alpine
+    image: golang:1.23.6-alpine
     restart: always
     working_dir: /go/src/app
     volumes:

deployment/logs-benchmark/docker-compose.yml

@@ -58,7 +58,7 @@ services:
       - ./vmsingle/promscrape.yml:/promscrape.yml
 
   grafana:
-    image: grafana/grafana:9.2.7
+    image: grafana/grafana:11.5.0
     depends_on: [vmsingle]
     ports:
       - 3000:3000

docs/LTS-releases.md

@@ -22,5 +22,5 @@ to [the latest available releases](https://docs.victoriametrics.com/changelog/).
 
 ## Currently supported LTS release lines
 
-- v1.102.x - the latest one is [v1.102.11 LTS release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.11)
-- v1.97.x - the latest one is [v1.97.16 LTS release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.16)
+- v1.102.x - the latest one is [v1.102.12 LTS release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.12)
+- v1.97.x - the latest one is [v1.97.17 LTS release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.17)

docs/Release-Guide.md

@@ -42,7 +42,7 @@ Bumping the limits may significantly improve build speed.
 1. Make sure all the changes are documented in [CHANGELOG.md](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/docs/CHANGELOG.md).
    Ideally, every change must be documented in the commit with the change. Alternatively, the change must be documented immediately
    after the commit, which adds the change.
-1. Run `make vmui-update` and `make vmui-logs-update` commands to re-build static files for `vmui`. See [commit example](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/9dde5b8ee3fdc9d4cd495c8118e04ff4ee32e650). 
+1. Run `make vmui-update` and `make vmui-logs-update` commands to re-build static files for `vmui`. Static assets needs to be rebuilt separately for oss and enterprise branches (changes should not be cherry-picked between these branches). See [commit example](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/9dde5b8ee3fdc9d4cd495c8118e04ff4ee32e650). 
 1. Make sure all the changes are synced between `master`, `cluster`, `enterprise-single-node` and `enterprise-cluster` branches.
    Changes in these branches must be synced immediately after they are committed in at least a single branch.
 1. Make sure that the release branches have no security issues.

docs/VictoriaLogs/CHANGELOG.md

@@ -16,10 +16,18 @@ according to [these docs](https://docs.victoriametrics.com/victorialogs/quicksta
 
 ## tip
 
+* FEATURE: [LogsQL](https://docs.victoriametrics.com/victorialogs/logsql/): improve performance for [`stats by (...) ...`](https://docs.victoriametrics.com/victorialogs/logsql/#stats-pipe) by up to 30% when it is applied to big number of `by (...)` groups.
+* FEATURE: [LogsQL](https://docs.victoriametrics.com/victorialogs/logsql/): improve performance for [`top` pipe](https://docs.victoriametrics.com/victorialogs/logsql/#top-pipe) by up to 30% when it is applied to big number of unique values.
+* FEATURE: [`stats` pipe](https://docs.victoriametrics.com/victorialogs/logsql/#stats-pipe): improve performance for [`count_uniq`](https://docs.victoriametrics.com/victorialogs/logsql/#count_uniq-stats) and [`count_uniq_hash`](https://docs.victoriametrics.com/victorialogs/logsql/#count_uniq_hash-stats) functions by up to 30% when they are applied to big number of unique values.
 * FEATURE: [`block_stats` pipe](https://docs.victoriametrics.com/victorialogs/logsql/#block_stats-pipe): return the path to the part where every data block is stored. The path to the part is returned in the `part_path` field. This allows investigating the distribution of data blocks among parts.
 * FEATURE: reduce VictoriaLogs startup time by multiple times when it opens a large datastore with big [retention](https://docs.victoriametrics.com/victorialogs/#retention).
+* FEATURE: [data ingestion](https://docs.victoriametrics.com/victorialogs/data-ingestion/): accept timestamps with microsecond and nanosecond precision at [`_time` field](https://docs.victoriametrics.com/victorialogs/keyconcepts/#time-field).
+* FEATURE: [web UI](https://docs.victoriametrics.com/victorialogs/querying/#web-ui): add the `_msg` field to the list of fields for the group view, allowing users to select multiple fields, including `_msg`, for log display.
 
+* BUGFIX: [LogsQL](https://docs.victoriametrics.com/victorialogs/logsql/): properly limit [`concurrency` query option](https://docs.victoriametrics.com/victorialogs/logsql/#query-options) for [`stats`](https://docs.victoriametrics.com/victorialogs/logsql/#stats-pipe), [`uniq`](https://docs.victoriametrics.com/victorialogs/logsql/#uniq-pipe) and [`top`](https://docs.victoriametrics.com/victorialogs/logsql/#top-pipe). This prevents from `runtime error: index out of range` panic. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/8201).
 * BUGFIX: [data ingestion](https://docs.victoriametrics.com/victorialogs/data-ingestion/): drop log entries with too long field names and log the dropped log entries with the `ignoring log entry with too long field name` message, so human operators could notice and fix the ingestion of incorrect logs ASAP. Previously too long field names were silently truncated to shorter values. This isn't what most users expect. See [why VictoriaLogs has a limit on the field name length](https://docs.victoriametrics.com/victorialogs/faq/#what-is-the-maximum-supported-field-name-length).
+* BUGFIX: [web UI](https://docs.victoriametrics.com/victorialogs/querying/#web-ui): fix transparency for bars in the hits bar chart to improve visibility. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/8152).
+* BUGFIX: [web UI](https://docs.victoriametrics.com/victorialogs/querying/#web-ui): fix `Group by field` dropdown menu not displaying any options in Group View settings. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/8153).
 
 ## [v1.8.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.8.0-victorialogs)
 

docs/VictoriaLogs/QuickStart.md

@@ -70,7 +70,7 @@ See also:
 ### Helm charts
 
 You can run VictoriaLogs in Kubernetes environment
-with [these Helm charts](https://github.com/VictoriaMetrics/helm-charts/blob/master/charts/victoria-logs-single/README.md).
+with [these Helm charts](https://docs.victoriametrics.com/helm/victorialogs-single/).
 
 ### Building from source code
 
@@ -145,5 +145,5 @@ Here are a Docker-compose demos, which start VictoriaLogs and push logs to it vi
 - [Vector demo](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker/victorialogs/vector)
 - [Promtail demo](https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/deployment/docker/victorialogs/promtail)
 
-You can use [this Helm chart](https://github.com/VictoriaMetrics/helm-charts/blob/master/charts/victoria-logs-single/README.md)
+You can use [this Helm chart](https://docs.victoriametrics.com/helm/victorialogs-single/)
 as a demo for running Vector in Kubernetes with VictoriaLogs.

docs/VictoriaLogs/data-ingestion/README.md

@@ -56,7 +56,8 @@ Otherwise the timestamp field must be in one of the following formats:
   If timezone information is missing (for example, `2023-06-20 15:32:10`),
   then the time is parsed in the local timezone of the host where VictoriaLogs runs.
 
-- Unix timestamp in seconds or in milliseconds. For example, `1686026893` (seconds) or `1686026893735` (milliseconds).
+- Unix timestamp in seconds, milliseconds, microseconds or nanoseconds. For example, `1686026893` (seconds), `1686026893735` (milliseconds),
+  `1686026893735321` (microseconds) or `1686026893735321098` (nanoseconds).
 
 See [these docs](https://docs.victoriametrics.com/victorialogs/keyconcepts/#data-model) for details on fields,
 which must be present in the ingested log messages.
@@ -111,7 +112,8 @@ Otherwise the timestamp field must be in one of the following formats:
   If timezone information is missing (for example, `2023-06-20 15:32:10`),
   then the time is parsed in the local timezone of the host where VictoriaLogs runs.
 
-- Unix timestamp in seconds or in milliseconds. For example, `1686026893` (seconds) or `1686026893735` (milliseconds).
+- Unix timestamp in seconds, milliseconds, microseconds or nanoseconds. For example, `1686026893` (seconds), `1686026893735` (milliseconds),
+  `1686026893735321` (microseconds) or `1686026893735321098` (nanoseconds).
 
 See [these docs](https://docs.victoriametrics.com/victorialogs/keyconcepts/#data-model) for details on fields,
 which must be present in the ingested log messages.

docs/VictoriaLogs/keyConcepts.md

@@ -146,7 +146,8 @@ The timestamp field must be in one of the following formats:
   If timezone information is missing (for example, `2023-06-20 15:32:10`),
   then the time is parsed in the local timezone of the host where VictoriaLogs runs.
 
-- Unix timestamp in seconds or in milliseconds. For example, `1686026893` (seconds) or `1686026893735` (milliseconds).
+- Unix timestamp in seconds, milliseconds, microseconds or nanoseconds. For example, `1686026893` (seconds), `1686026893735` (milliseconds),
+  `1686026893735321` (microseconds) or `1686026893735321098` (nanoseconds).
 
 For example, the following [log entry](#data-model) contains valid timestamp with millisecond precision in the `_time` field:
 

docs/VictoriaLogs/victorialogs-datasource.md

@@ -25,23 +25,6 @@ The VictoriaLogs datasource plugin allows you to query and visualize
 
 ## Installation
 
-Installing VictoriaLogs datasource 
-[requires](https://grafana.com/docs/grafana/latest/setup-grafana/configure-grafana/#allow_loading_unsigned_plugins) 
-the following changes to Grafana's `grafana.ini` config:
-
-``` ini
-[plugins]
-allow_loading_unsigned_plugins = victoriametrics-logs-datasource
-```
-
-If using `grafana-operator`, adjust `config` section in your `kind=Grafana` resource as below:
-
-```
-  config:
-    plugins:
-      allow_loading_unsigned_plugins: "victoriametrics-logs-datasource"
-```
-
 For detailed instructions on how to install the plugin in Grafana Cloud or locally,
 please checkout the [Plugin installation docs](https://grafana.com/docs/grafana/latest/plugins/installation/).
 
@@ -80,8 +63,7 @@ Please find the example of provisioning Grafana instance with VictoriaLogs datas
        grafana:
          image: grafana/grafana:11.0.0
          environment:
-         - GF_INSTALL_PLUGINS=https://github.com/VictoriaMetrics/victorialogs-datasource/releases/download/v0.13.1/victoriametrics-logs-datasource-v0.13.1.zip;victoriametrics-logs-datasource
-         - GF_PLUGINS_ALLOW_LOADING_UNSIGNED_PLUGINS=victoriametrics-logs-datasource
+         - GF_INSTALL_PLUGINS=victoriametrics-logs-datasource
          ports:
          - 3000:3000/tcp
          volumes:
@@ -108,15 +90,14 @@ Option 1. Using Grafana provisioning:
 
 ``` yaml
 env:
-  GF_INSTALL_PLUGINS: "https://github.com/VictoriaMetrics/victorialogs-datasource/releases/download/v0.13.1/victoriametrics-logs-datasource-v0.13.1.zip;victoriametrics-logs-datasource"
-  GF_PLUGINS_ALLOW_LOADING_UNSIGNED_PLUGINS: "victoriametrics-logs-datasource"
+  GF_INSTALL_PLUGINS: "victoriametrics-logs-datasource"
 ```
 
 Option 2. Using Grafana plugins section in `values.yaml`:
 
 ``` yaml
 plugins:
-  - https://github.com/VictoriaMetrics/victorialogs-datasource/releases/download/v0.13.1/victoriametrics-logs-datasource-v0.13.1.zip;victoriametrics-logs-datasource
+  - victoriametrics-logs-datasource
 ```
 
 Option 3. Using init container:
@@ -170,6 +151,8 @@ apiVersion: grafana.integreatly.org/v1beta1
 kind: Grafana
 metadata:
   name: grafana-vm
+  labels:
+     dashboards: grafana
 spec:
   persistentVolumeClaim:
     spec:
@@ -203,14 +186,85 @@ spec:
               volumeMounts:
                 - name: grafana-data
                   mountPath: /var/lib/grafana
-  config:
-    plugins:
-      allow_loading_unsigned_plugins: victoriametrics-logs-datasource
 ```
 
 See [Grafana operator reference](https://grafana-operator.github.io/grafana-operator/docs/grafana/) to find more about Grafana operator.
 This example uses init container to download and install plugin.
 
+It is also possible to request plugin at `GrafanaDatasource` or `GrafanaDashboard` CRDs.
+For example:
+```yaml
+apiVersion: grafana.integreatly.org/v1beta1
+kind: GrafanaDatasource
+metadata:
+  name: vl-datasource
+spec:
+  datasource:
+    access: proxy
+    type: victoriametrics-logs-datasource
+    name: VL
+    url: http://victoria-logs-single-server.monitoring.svc.cluster.local:9428
+  instanceSelector:
+    matchLabels:
+      dashboards: grafana
+  plugins:
+    - name: victoriametrics-logs-datasource
+      version: "0.14.3"
+---
+apiVersion: grafana.integreatly.org/v1beta1
+kind: GrafanaDashboard
+metadata:
+  name: vl-dashboard
+spec:
+  resyncPeriod: 30s
+  plugins:
+    - name: victoriametrics-logs-datasource
+      version: "0.14.3"
+  instanceSelector:
+    matchLabels:
+      dashboards: "grafana"
+  json: |
+     {
+        "annotations": {
+           "list": [
+              {
+                 "builtIn": 1,
+                 "datasource": {
+                    "type": "grafana",
+                    "uid": "-- Grafana --"
+                 },
+                 "enable": true,
+                 "hide": true,
+                 "iconColor": "rgba(0, 211, 255, 1)",
+                 "name": "Annotations & Alerts",
+                 "type": "dashboard"
+              }
+           ]
+        },
+        "editable": true,
+        "fiscalYearStartMonth": 0,
+        "graphTooltip": 0,
+        "links": [],
+        "panels": [],
+        "preload": false,
+        "refresh": "",
+        "schemaVersion": 40,
+        "tags": [],
+        "templating": {
+           "list": []
+        },
+        "time": {
+           "from": "now-6h",
+           "to": "now"
+        },
+        "timepicker": {},
+        "timezone": "browser",
+        "title": "Example",
+        "version": 0,
+        "weekStart": ""
+     }
+```
+
 ### Dev release installation
 
 1. To download plugin build and move contents into Grafana plugins directory:

docs/anomaly-detection/CHANGELOG.md

@@ -14,7 +14,7 @@ Please find the changelog for VictoriaMetrics Anomaly Detection below.
 ## v1.19.2
 Released: 2025-01-27
 
-- IMPROVEMENT: Added the `complete` option to the `--splitBy` argument in `config_splitter.py` [util](https://docs.victoriametrics.com/anomaly-detection/faq/index.html#splitting-the-config). This allows splitting a parent configuration into the smallest possible sub-configurations, each containing exactly one scheduler, one model, and either one or multiple queries (depending on whether the model is [multivariate](https://docs.victoriametrics.com/anomaly-detection/components/models/#multivariate-models) or not).
+- IMPROVEMENT: Added the `complete` option to the `--splitBy` argument in `config_splitter.py` [util](https://docs.victoriametrics.com/anomaly-detection/faq/#splitting-the-config). This allows splitting a parent configuration into the smallest possible sub-configurations, each containing exactly one scheduler, one model, and either one or multiple queries (depending on whether the model is [multivariate](https://docs.victoriametrics.com/anomaly-detection/components/models/#multivariate-models) or not).
 
 - FIX: Resolved an issue where duplicate log messages were generated during sub-config validation of the parent configuration.
 
@@ -154,7 +154,7 @@ Released: 2024-10-17
 - IMPROVEMENT: Accelerated performance of model fitting stages on multicore systems.
 - IMPROVEMENT: Optimized query handling in multi-[scheduler](https://docs.victoriametrics.com/anomaly-detection/components/scheduler/) setups by filtering [queries](https://docs.victoriametrics.com/anomaly-detection/components/models/#queries) for each scheduler based on model requirements. This reduces unnecessary data fetching from VictoriaMetrics, ensuring only relevant queries are processed by the [VmReader](https://docs.victoriametrics.com/anomaly-detection/components/reader#vm-reader), leading to better performance and efficiency of configs with multiple active schedulers.
 
-- IMPROVEMENT: Implemented automatic cleanup of files in subdirectories within `/tmp` ([generated by the Stan backend](https://mc-stan.org/cmdstanpy/users-guide/outputs.html) when utilizing [Prophet](https://docs.victoriametrics.com/anomaly-detection/components/models/#prophet) models) after each `fit` operation. This prevents the accumulation of unused data over time in `/tmp`, addressing a potential issue where these files would only be deleted upon termination of the current Python session or service, leading to uncontrolled disk growth.
+- IMPROVEMENT: Implemented automatic cleanup of files in subdirectories within `/tmp` ([generated by the Stan backend](https://mc-stan.org/cmdstanpy/users-guide/outputs) when utilizing [Prophet](https://docs.victoriametrics.com/anomaly-detection/components/models/#prophet) models) after each `fit` operation. This prevents the accumulation of unused data over time in `/tmp`, addressing a potential issue where these files would only be deleted upon termination of the current Python session or service, leading to uncontrolled disk growth.
 
 - FIX: Re-enable the `vmanomaly_reader_response_count` (now called `vmanomaly_reader_responses`) self-monitoring [metric](https://docs.victoriametrics.com/anomaly-detection/components/monitoring/#reader-behaviour-metrics) for the [VmReader](https://docs.victoriametrics.com/anomaly-detection/components/reader/#vm-reader), which was unintentionally disabled in previous releases and now updates correctly as intended.
 

docs/anomaly-detection/QuickStart.md

@@ -198,9 +198,9 @@ models:
       - name: 'dow'  # intra-week seasonality, time of the week
         fourier_order: 2  # keep it 2-4, as dependencies are learned separately for each weekday
     # inner model args (key-value pairs) accepted by
-    # https://facebook.github.io/prophet/docs/quick_start.html#python-api
+    # https://facebook.github.io/prophet/docs/quick_start#python-api
     args:
-      interval_width: 0.98  # see https://facebook.github.io/prophet/docs/uncertainty_intervals.html
+      interval_width: 0.98  # see https://facebook.github.io/prophet/docs/uncertainty_intervals
 
 reader:
   # https://docs.victoriametrics.com/anomaly-detection/components/reader/#vm-reader
@@ -232,4 +232,4 @@ Here are other materials that you might find useful:
 - [Guide: Anomaly Detection and Alerting Setup](https://docs.victoriametrics.com/anomaly-detection/guides/guide-vmanomaly-vmalert/)
 - [FAQ](https://docs.victoriametrics.com/anomaly-detection/faq/)
 - [Changelog](https://docs.victoriametrics.com/anomaly-detection/changelog/)
-- [Anomaly Detection Blog](https://victoriametrics.com/blog/tags/anomaly-detection/)
+- [Anomaly Detection Blog](https://victoriametrics.com/tags/anomaly-detection/)

docs/anomaly-detection/README.md

@@ -43,10 +43,10 @@ Enhance your knowledge with our handbook on Anomaly Detection & Root Cause Analy
     - [Introduction to Time Series Anomaly Detection](https://victoriametrics.com/blog/victoriametrics-anomaly-detection-handbook-chapter-1/)
     - [Types of Anomalies in Time Series Data](https://victoriametrics.com/blog/victoriametrics-anomaly-detection-handbook-chapter-2/)
     - [Techniques and Models for Anomaly Detection](https://victoriametrics.com/blog/victoriametrics-anomaly-detection-handbook-chapter-3/)
-* Follow the [`#anomaly-detection`](https://victoriametrics.com/blog/tags/anomaly-detection/) tag in our blog
+* Follow the [`#anomaly-detection`](https://victoriametrics.com/tags/anomaly-detection/) tag in our blog
 
 ## Product Updates
-Stay up-to-date with the latest improvements and features in VictoriaMetrics Anomaly Detection, and the rest of our products on our [blog](https://victoriametrics.com/blog/tags/product-updates/).
+Stay up-to-date with the latest improvements and features in VictoriaMetrics Anomaly Detection, and the rest of our products on our [blog](https://victoriametrics.com/tags/product-updates/).
 
 ## Frequently Asked Questions (FAQ)
 Got questions about VictoriaMetrics Anomaly Detection? Chances are, we've got the answers ready for you. 

docs/anomaly-detection/components/models.md

@@ -389,7 +389,7 @@ Every other model that isn't [online](#online-models). Offline models are comple
 VictoriaMetrics Anomaly Detection models support 2 groups of parameters:
 
 - **`vmanomaly`-specific** arguments - please refer to *Parameters specific for vmanomaly* and *Default model parameters* subsections for each of the models below.
-- Arguments to **inner model** (say, [Facebook's Prophet](https://facebook.github.io/prophet/docs/quick_start.html#python-api)), passed in a `args` argument as key-value pairs, that will be directly given to the model during initialization to allow granular control. Optional.
+- Arguments to **inner model** (say, [Facebook's Prophet](https://facebook.github.io/prophet/docs/quick_start#python-api)), passed in a `args` argument as key-value pairs, that will be directly given to the model during initialization to allow granular control. Optional.
 
 > **Note**: For users who may not be familiar with Python data types such as `list[dict]`, a [dictionary](https://www.w3schools.com/python/python_dictionaries.asp) in Python is a data structure that stores data values in key-value pairs. This structure allows for efficient data retrieval and management.
 
@@ -418,7 +418,7 @@ Tuning hyperparameters of a model can be tricky and often requires in-depth know
 * `tuned_class_name` (string) - Built-in model class to tune, i.e. `model.zscore.ZscoreModel` (or `zscore`with class alias support{{% available_from "v1.13.0" anomaly %}}).
 * `optimization_params` (dict) - Optimization parameters for unsupervised model tuning. Control % of found anomalies, as well as a tradeoff between time spent and the accuracy. The more `timeout` and `n_trials` are, the better model configuration can be found for `tuned_class_name`, but the longer it takes and vice versa. Set `n_jobs` to `-1` to use all the CPUs available, it makes sense if only you have a big dataset to train on during `fit` calls, otherwise overhead isn't worth it.
   - `anomaly_percentage` (float) - Expected percentage of anomalies that can be seen in training data, from (0, 0.5) interval.
-  - `optimized_business_params` (list[string]) - Starting from [v1.15.0](https://docs.victoriametrics.com/anomaly-detection/v1150) this argument allows particular business-specific parameters such as [`detection_direction`](https://docs.victoriametrics.com/anomaly-detection/components/models/#detection-direction) or [`min_dev_from_expected`](https://docs.victoriametrics.com/anomaly-detection/components/models/#minimal-deviation-from-expected) to remain **unchanged during optimizations, retaining their default values**. I.e. setting `optimized_business_params` to  `['detection_direction']` will allow to optimize only `detection_direction` business-specific arg, while `min_dev_from_expected` will retain its default value (0.0). By default and if not set, will be equal to `[]` (empty list), meaning no business params will be optimized. **A recommended option is to leave it empty** for more stable results and increased convergence (less iterations needed for a good result).
+  - `optimized_business_params` (list[string]) - Starting from [v1.15.0](https://docs.victoriametrics.com/anomaly-detection/changelog/#v1150) this argument allows particular business-specific parameters such as [`detection_direction`](https://docs.victoriametrics.com/anomaly-detection/components/models/#detection-direction) or [`min_dev_from_expected`](https://docs.victoriametrics.com/anomaly-detection/components/models/#minimal-deviation-from-expected) to remain **unchanged during optimizations, retaining their default values**. I.e. setting `optimized_business_params` to  `['detection_direction']` will allow to optimize only `detection_direction` business-specific arg, while `min_dev_from_expected` will retain its default value (0.0). By default and if not set, will be equal to `[]` (empty list), meaning no business params will be optimized. **A recommended option is to leave it empty** for more stable results and increased convergence (less iterations needed for a good result).
   - `seed` (int) - Random seed for reproducibility and deterministic nature of underlying optimizations.
   - `n_splits` (int) - How many folds to create for hyperparameter tuning out of your data. The higher, the longer it takes but the better the results can be. Defaults to 3.
   - `n_trials` (int) - How many trials to sample from hyperparameter search space. The higher, the longer it takes but the better the results can be. Defaults to 128.
@@ -451,7 +451,7 @@ models:
 
 
 ### [Prophet](https://facebook.github.io/prophet/)
-`vmanomaly` uses the Facebook Prophet implementation for time series forecasting, with detailed usage provided in the [Prophet library documentation](https://facebook.github.io/prophet/docs/quick_start.html#python-api). All original Prophet parameters are supported and can be directly passed to the model via `args` argument.
+`vmanomaly` uses the Facebook Prophet implementation for time series forecasting, with detailed usage provided in the [Prophet library documentation](https://facebook.github.io/prophet/docs/quick_start#python-api). All original Prophet parameters are supported and can be directly passed to the model via `args` argument.
 
 
 > **Note**: `ProphetModel` is a [univariate](#univariate-models), [non-rolling](#non-rolling-models), [offline](#offline-models) model.
@@ -462,7 +462,7 @@ models:
 *Parameters specific for vmanomaly*:
 
 - `class` (string) - model class name `"model.prophet.ProphetModel"` (or `prophet` with class alias support{{% available_from "v1.13.0" anomaly %}})
-- `seasonalities` (list[dict], optional): Additional seasonal components to include in Prophet. See Prophet’s [`add_seasonality()`](https://facebook.github.io/prophet/docs/seasonality,_holiday_effects,_and_regressors.html#modeling-holidays-and-special-events:~:text=modeling%20the%20cycle-,Specifying,-Custom%20Seasonalities) documentation for details.
+- `seasonalities` (list[dict], optional): Additional seasonal components to include in Prophet. See Prophet’s [`add_seasonality()`](https://facebook.github.io/prophet/docs/seasonality,_holiday_effects,_and_regressors#modeling-holidays-and-special-events:~:text=modeling%20the%20cycle-,Specifying,-Custom%20Seasonalities) documentation for details.
 - `scale`{{% available_from "v1.18.0" anomaly %}} (float): Is used to adjust the margin between `yhat` and [`yhat_lower`, `yhat_upper`]. New margin = `|yhat_* - yhat_lower| * scale`. Defaults to 1 (no scaling is applied).
 - `tz_aware`{{% available_from "v1.18.0" anomaly %}} (bool): Enables handling of timezone-aware timestamps. Default is `False`. Should be used with `tz_seasonalities` and `tz_use_cyclical_encoding` parameters.
 - `tz_seasonalities`{{% available_from "v1.18.0" anomaly %}} (list[dict]): Specifies timezone-aware seasonal components. Requires `tz_aware=True`. Supported options include `minute`, `hod` (hour of day), `dow` (day of week), and `month` (month of year). Starting with [v1.18.2](https://docs.victoriametrics.com/anomaly-detection/changelog/#v1182), users can configure additional parameters for each seasonality, such as `fourier_order`, `prior_scale`, and `mode`. For more details, please refer to the **Timezone-unaware** configuration example below.
@@ -495,9 +495,9 @@ models:
         fourier_order: 30
         prior_scale: 20
     # inner model args (key-value pairs) accepted by
-    # https://facebook.github.io/prophet/docs/quick_start.html#python-api
+    # https://facebook.github.io/prophet/docs/quick_start#python-api
     args:
-      interval_width: 0.98  # see https://facebook.github.io/prophet/docs/uncertainty_intervals.html
+      interval_width: 0.98  # see https://facebook.github.io/prophet/docs/uncertainty_intervals
       country_holidays: 'US'
 ```
 
@@ -517,9 +517,9 @@ models:
       - name: 'dow'  # intra-week seasonality, time of the week
         fourier_order: 2  # keep it 2-4, as dependencies are learned separately for each weekday
     # inner model args (key-value pairs) accepted by
-    # https://facebook.github.io/prophet/docs/quick_start.html#python-api
+    # https://facebook.github.io/prophet/docs/quick_start#python-api
     args:
-      interval_width: 0.98  # see https://facebook.github.io/prophet/docs/uncertainty_intervals.html
+      interval_width: 0.98  # see https://facebook.github.io/prophet/docs/uncertainty_intervals
       country_holidays: 'US'
 ```
 
@@ -578,7 +578,7 @@ Resulting metrics of the model are described [here](#vmanomaly-output).
 
 > **Note**: `HoltWinters` is a [univariate](#univariate-models), [non-rolling](#non-rolling-models), [offline](#offline-models) model.
 
-Here we use Holt-Winters Exponential Smoothing implementation from `statsmodels` [library](https://www.statsmodels.org/dev/generated/statsmodels.tsa.holtwinters.ExponentialSmoothing.html). All parameters from this library can be passed to the model.
+Here we use Holt-Winters Exponential Smoothing implementation from `statsmodels` [library](https://www.statsmodels.org/dev/generated/statsmodels.tsa.holtwinters.ExponentialSmoothing). All parameters from this library can be passed to the model.
 
 *Parameters specific for vmanomaly*:
 
@@ -596,11 +596,11 @@ Used to compute "seasonal_periods" param for the model (e.g. '1D' or '1W').
 
 *Default model parameters*:
 
-* If [parameter](https://www.statsmodels.org/dev/generated/statsmodels.tsa.holtwinters.ExponentialSmoothing.html#statsmodels.tsa.holtwinters.ExponentialSmoothing-parameters) `seasonal` is not specified, default value will be `add`.
+* If [parameter](https://www.statsmodels.org/dev/generated/statsmodels.tsa.holtwinters.ExponentialSmoothing#statsmodels.tsa.holtwinters.ExponentialSmoothing-parameters) `seasonal` is not specified, default value will be `add`.
 
-* If [parameter](https://www.statsmodels.org/dev/generated/statsmodels.tsa.holtwinters.ExponentialSmoothing.html#statsmodels.tsa.holtwinters.ExponentialSmoothing-parameters) `initialization_method` is not specified, default value will be `estimated`.
+* If [parameter](https://www.statsmodels.org/dev/generated/statsmodels.tsa.holtwinters.ExponentialSmoothing#statsmodels.tsa.holtwinters.ExponentialSmoothing-parameters) `initialization_method` is not specified, default value will be `estimated`.
 
-* `args` (dict, optional) - Inner model args (key-value pairs). See accepted params in [model documentation](https://www.statsmodels.org/dev/generated/statsmodels.tsa.holtwinters.ExponentialSmoothing.html#statsmodels.tsa.holtwinters.ExponentialSmoothing-parameters). Defaults to empty (not provided). Example:  {"seasonal": "add", "initialization_method": "estimated"}
+* `args` (dict, optional) - Inner model args (key-value pairs). See accepted params in [model documentation](https://www.statsmodels.org/dev/generated/statsmodels.tsa.holtwinters.ExponentialSmoothing#statsmodels.tsa.holtwinters.ExponentialSmoothing-parameters). Defaults to empty (not provided). Example:  {"seasonal": "add", "initialization_method": "estimated"}
 
 *Config Example*
 
@@ -746,7 +746,7 @@ Resulting metrics of the model are described [here](#vmanomaly-output).
 
 > **Note**: `StdModel` is a [univariate](#univariate-models), [rolling](#rolling-models), [offline](#offline-models) model.
 
-Here we use Seasonal Decompose implementation from `statsmodels` [library](https://www.statsmodels.org/dev/generated/statsmodels.tsa.seasonal.seasonal_decompose.html). Parameters from this library can be passed to the model. Some parameters are specifically predefined in `vmanomaly` and can't be changed by user(`model`='additive', `two_sided`=False).
+Here we use Seasonal Decompose implementation from `statsmodels` [library](https://www.statsmodels.org/dev/generated/statsmodels.tsa.seasonal.seasonal_decompose). Parameters from this library can be passed to the model. Some parameters are specifically predefined in `vmanomaly` and can't be changed by user(`model`='additive', `two_sided`=False).
 
 *Parameters specific for vmanomaly*:
 
@@ -784,7 +784,7 @@ Detects anomalies using binary trees. The algorithm has a linear time complexity
 
 **Important**: Be aware of [the curse of dimensionality](https://en.wikipedia.org/wiki/Curse_of_dimensionality). Don't use single multivariate model if you expect your queries to return many time series of less datapoints that the number of metrics. In such case it is hard for a model to learn meaningful dependencies from too sparse data hypercube.
 
-Here we use Isolation Forest implementation from `scikit-learn` [library](https://scikit-learn.org/stable/modules/generated/sklearn.ensemble.IsolationForest.html). All parameters from this library can be passed to the model.
+Here we use Isolation Forest implementation from `scikit-learn` [library](https://scikit-learn.org/stable/modules/generated/sklearn.ensemble.IsolationForest). All parameters from this library can be passed to the model.
 
 *Parameters specific for vmanomaly*:
 
@@ -801,7 +801,7 @@ Here we use Isolation Forest implementation from `scikit-learn` [library](https:
     - "dow" - day of week (1-7)
     - "month" - month of year (1-12)
 
-* `args` (dict, optional) - Inner model args (key-value pairs). See accepted params in [model documentation](https://scikit-learn.org/stable/modules/generated/sklearn.ensemble.IsolationForest.html). Defaults to empty (not provided). Example:  {"random_state": 42, "n_estimators": 100}
+* `args` (dict, optional) - Inner model args (key-value pairs). See accepted params in [model documentation](https://scikit-learn.org/stable/modules/generated/sklearn.ensemble.IsolationForest). Defaults to empty (not provided). Example:  {"random_state": 42, "n_estimators": 100}
 
 *Config Example*
 

docs/anomaly-detection/components/monitoring.md

@@ -851,11 +851,11 @@ When there are insufficient valid data points (at least 1 for [online models](ht
 [Scheduler {{scheduler_alias}}] Skipping run for stage 'fit' for model '{{model_alias}}' (query_key: {{query_key}}): Not enough valid data to fit: {{valid_values_cnt}}
 ```
 
-When all the received timestamps during an `infer` call have already been processed, meaning the [`anomaly_score`](https://docs.victoriametrics.com/anomaly-detection/faq/index.html#what-is-anomaly-score) has already been produced for those points
+When all the received timestamps during an `infer` call have already been processed, meaning the [`anomaly_score`](https://docs.victoriametrics.com/anomaly-detection/faq/#what-is-anomaly-score) has already been produced for those points
 ```text
 [Scheduler {{scheduler_alias}}] Skipping run for stage 'infer' for model '{{model_alias}}' (query_key: {{query_key}}): No unseen data to infer on.
 ```
-When the model fails to produce any valid or finite outputs (such as [`anomaly_score`](https://docs.victoriametrics.com/anomaly-detection/faq/index.html#what-is-anomaly-score))
+When the model fails to produce any valid or finite outputs (such as [`anomaly_score`](https://docs.victoriametrics.com/anomaly-detection/faq/#what-is-anomaly-score))
 ```text
 [Scheduler {{scheduler_alias}}] Skipping run for stage 'infer' for model '{{model_alias}}' (query_key: {{query_key}}): No (valid) datapoints produced.
 ```
@@ -917,7 +917,7 @@ For [rolling models](https://docs.victoriametrics.com/anomaly-detection/componen
 
 ### Writer logs
 
-The `writer` component logs events during the process of sending produced data (like `anomaly_score` [metrics](https://docs.victoriametrics.com/anomaly-detection/faq/index.html#what-is-anomaly-score)) to VictoriaMetrics. This includes data preparation, serialization, and network requests to VictoriaMetrics endpoints. The logs can help identify issues in data transmission, such as connection errors, invalid data points, and track the performance of write requests.
+The `writer` component logs events during the process of sending produced data (like `anomaly_score` [metrics](https://docs.victoriametrics.com/anomaly-detection/faq/#what-is-anomaly-score)) to VictoriaMetrics. This includes data preparation, serialization, and network requests to VictoriaMetrics endpoints. The logs can help identify issues in data transmission, such as connection errors, invalid data points, and track the performance of write requests.
 
 ---
 

docs/anomaly-detection/components/reader.md

@@ -67,7 +67,7 @@ There is change{{% available_from "v1.13.0" anomaly %}} of [`queries`](https://d
 
   > **Note**: if not set explicitly (or if older config style prior to [v1.13.0](https://docs.victoriametrics.com/anomaly-detection/changelog/#v1130)) is used, then it is set to reader-level `data_range` arg{{% available_from "v1.18.1" anomaly %}}
 
-- `max_points_per_query` (int): Optional arg{{% available_from "v1.17.0" anomaly %}} overrides how `search.maxPointsPerTimeseries` flag{{% available_from "v1.14.1" anomaly %}} impacts `vmanomaly` on splitting long `fit_window` [queries](https://docs.victoriametrics.com/anomaly-detection/components/reader/?highlight=queries#vm-reader) into smaller sub-intervals. This helps users avoid hitting the `search.maxQueryDuration` limit for individual queries by distributing initial query across multiple subquery requests with minimal overhead. Set less than `search.maxPointsPerTimeseries` if hitting `maxQueryDuration` limits. If set on a query-level, it overrides the global `max_points_per_query` (reader-level).
+- `max_points_per_query`{{% available_from "v1.17.0" anomaly %}} (int): Optional arg, overrides how `search.maxPointsPerTimeseries` flag{{% available_from "v1.14.1" anomaly %}} impacts `vmanomaly` on splitting long `fit_window` [queries](https://docs.victoriametrics.com/anomaly-detection/components/reader/?highlight=queries#vm-reader) into smaller sub-intervals. This helps users avoid hitting the `search.maxQueryDuration` limit for individual queries by distributing initial query across multiple subquery requests with minimal overhead. Set less than `search.maxPointsPerTimeseries` if hitting `maxQueryDuration` limits. If set on a query-level, it overrides the global `max_points_per_query` (reader-level).
 
 - `tz`{{% available_from "v1.18.0" anomaly %}} (string): this optional argument enables timezone specification per query, overriding the reader’s default `tz`. This setting helps to account for local timezone shifts, such as [DST](https://en.wikipedia.org/wiki/Daylight_saving_time), in models that are sensitive to seasonal variations (e.g., [`ProphetModel`](https://docs.victoriametrics.com/anomaly-detection/components/models/#prophet) or [`OnlineQuantileModel`](https://docs.victoriametrics.com/anomaly-detection/components/models/#online-seasonal-quantile)).
 
@@ -76,9 +76,9 @@ There is change{{% available_from "v1.13.0" anomaly %}} of [`queries`](https://d
   - if *set, overrides* reader-level `tenant_id`
   - *raises config validation error*, if *reader-level is not set* and *query-level is found* (mixing of VictoriaMetrics [single-node](https://docs.victoriametrics.com/single-server-victoriametrics/) and [cluster](https://docs.victoriametrics.com/cluster-victoriametrics/) is prohibited in a single config)
   - *raises config validation warning*, if `writer.tenant_id` is not explicitly set to `multitenant` when reader uses tenants, meaning [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/) will be used for data querying.
-  - also *raises config validation error* if a set of `reader.queries` for [multivariate models](https://docs.victoriametrics.com/anomaly-detection/components/models/index.html#multivariate-models) has *different* tenant_ids (meaning tenant data is mixed, and special labels like `vm_project_id`, `vm_account_id` will have [ambiguous values](https://docs.victoriametrics.com/cluster-victoriametrics/#multitenancy-via-labels))
+  - also *raises config validation error* if a set of `reader.queries` for [multivariate models](https://docs.victoriametrics.com/anomaly-detection/components/models/#multivariate-models) has *different* tenant_ids (meaning tenant data is mixed, and special labels like `vm_project_id`, `vm_account_id` will have [ambiguous values](https://docs.victoriametrics.com/cluster-victoriametrics/#multitenancy-via-labels))
 
-  > **Note:** The recommended approach for using per-query `tenant_id`s is to set both `reader.tenant_id` and `writer.tenant_id` to `multitenant`. See [this section](https://docs.victoriametrics.com/anomaly-detection/components/writer/index.html#multitenancy-support) for more details. Configurations where `reader.tenant_id` equals `writer.tenant_id` and is not `multitenant` are also considered safe, provided there is a single, DISTINCT `tenant_id` defined in the reader (either at the reader level or the query level, if set).
+  > **Note:** The recommended approach for using per-query `tenant_id`s is to set both `reader.tenant_id` and `writer.tenant_id` to `multitenant`. See [this section](https://docs.victoriametrics.com/anomaly-detection/components/writer/#multitenancy-support) for more details. Configurations where `reader.tenant_id` equals `writer.tenant_id` and is not `multitenant` are also considered safe, provided there is a single, DISTINCT `tenant_id` defined in the reader (either at the reader level or the query level, if set).
 
 ### Per-query config example
 ```yaml
@@ -348,7 +348,7 @@ If True, then query will be performed from the last seen timestamp for a given s
 `1ms`
             </td>
             <td>
-It allows overriding the default `-search.latencyOffset`{{% available_from "v1.15.1" anomaly %}} [flag of VictoriaMetrics](https://docs.victoriametrics.com/?highlight=search.latencyOffset#list-of-command-line-flags) (30s). The default value is set to 1ms, which should help in cases where `sampling_frequency` is low (10-60s) and `sampling_frequency` equals `infer_every` in the [PeriodicScheduler](https://docs.victoriametrics.com/anomaly-detection/components/scheduler/?highlight=infer_every#periodic-scheduler). This prevents users from receiving `service - WARNING - [Scheduler [scheduler_alias]] No data available for inference.` warnings in logs and allows for consecutive `infer` calls without gaps. To restore the old behavior, set it equal to your `-search.latencyOffset` [flag value]((https://docs.victoriametrics.com/?highlight=search.latencyOffset#list-of-command-line-flags)).
+It allows overriding the default `-search.latencyOffset`{{% available_from "v1.15.1" anomaly %}} [flag of VictoriaMetrics](https://docs.victoriametrics.com/?highlight=search.latencyOffset#list-of-command-line-flags) (30s). The default value is set to 1ms, which should help in cases where `sampling_frequency` is low (10-60s) and `sampling_frequency` equals `infer_every` in the [PeriodicScheduler](https://docs.victoriametrics.com/anomaly-detection/components/scheduler/?highlight=infer_every#periodic-scheduler). This prevents users from receiving `service - WARNING - [Scheduler [scheduler_alias]] No data available for inference.` warnings in logs and allows for consecutive `infer` calls without gaps. To restore the old behavior, set it equal to your `-search.latencyOffset` [flag value](https://docs.victoriametrics.com/?highlight=search.latencyOffset#list-of-command-line-flags).
             </td>
         </tr>
         <tr>

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

@@ -121,7 +121,7 @@ Detailed parameters in each section:
 
 * `models`
   * `class` - Specifies the model to be used. Options include custom models ([guide here](https://docs.victoriametrics.com/anomaly-detection/components/models/#custom-model-guide)) or a selection from [built-in models](https://docs.victoriametrics.com/anomaly-detection/components/models/#built-in-models), such as the [Facebook Prophet](https://docs.victoriametrics.com/anomaly-detection/components/models/#prophet) (`model.prophet.ProphetModel`).
-  * `args` - Model-specific parameters, formatted as a YAML dictionary in the `key: value` structure. Parameters available in [FB Prophet](https://facebook.github.io/prophet/docs/quick_start.html) can be used as an example.
+  * `args` - Model-specific parameters, formatted as a YAML dictionary in the `key: value` structure. Parameters available in [FB Prophet](https://facebook.github.io/prophet/docs/quick_start) can be used as an example.
 
 * `reader`
   * `datasource_url` - The URL for the data source, typically an HTTP endpoint serving `/api/v1/query_range`.

docs/changelog/CHANGELOG.md

@@ -18,7 +18,27 @@ See also [LTS releases](https://docs.victoriametrics.com/lts-releases/).
 
 ## tip
 
+* SECURITY: upgrade Go builder from Go1.23.5 to Go1.23.6. See the list of issues addressed in [Go1.23.6](https://github.com/golang/go/issues?q=milestone%3AGo1.23.6+label%3ACherryPickApproved).
+
+* BUGFIX: [vmalert](https://docs.victoriametrics.com/vmalert/): fix polluted alert messages when multiple Alertmanager instances are configured as notifiers with alert_relabel_configs.. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/8040), and thanks to @evkuzin for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/8258).
+
+## [v1.111.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.111.0)
+
+Released at 2025-02-07
+
+**Update note 1: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/) and  [vmstorage](https://docs.victoriametrics.com/victoriametrics/) stop exposing `vm_index_search_duration_seconds` histogram metric. This metric records time spent on search operations in the index. It was introduced in [v1.56.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.56.0). However, this metric was used neither in dashboards nor in alerting rules. It also has high cardinality because index search operations latency can differ by 3 orders of magnitude. Hence, dropping it as unused.**
+
 * FEATURE: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/) and [vmstorage](https://docs.victoriametrics.com/cluster-victoriametrics/): improve startup times when opening a storage with the [retention](https://docs.victoriametrics.com/#retention) exceeding a few months.
+* FEATURE: [vmui](https://docs.victoriametrics.com/#vmui): add the ability to switch the heatmap to a line chart. Now, vmui would suggest to switch to line graph display if heatmap can't be properly rendered. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/8057).
+* FEATURE: [vmauth](https://docs.victoriametrics.com/vmauth/): add `-httpInternalListenAddr` cmd-line flag to serve internal HTTP routes `/metrics`, `/flags`, etc. It allows properly route requests to backends with the same service routes as vmauth. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6468) and [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7345) for details.
+* FEATURE: expose `/-/healthy` and `/-/ready` endpoints as Prometheus does on vmselect endpoints, thus achieving full Prometheus compatibility for external dependencies.
+
+* BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent/): properly perform graceful shutdown for kafka client.
+* BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent/): properly add message metadata headers for kafka remoteWrite target.
+* BUGFIX: [vmui](https://docs.victoriametrics.com/#vmui): improve clipboard error handling in tables and code snippets by showing detailed messages with possible reasons. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7778).
+* BUGFIX: [vmui](https://docs.victoriametrics.com/#vmui) for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/enterprise.html) components: properly display enterprise features when the enterprise version is used.
+* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/) and [vmselect](https://docs.victoriametrics.com/cluster-victoriametrics/): fix discrepancies when using `or` binary operator. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7759) and [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7640) issues for details.
+* BUGFIX: [vmsingle](https://docs.victoriametrics.com/single-server-victoriametrics/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): properly update number of unique series for [cardinality limiter](https://docs.victoriametrics.com/#cardinality-limiter) on ingestion. Previously, limit could undercount the real number of the ingested unique series. 
 
 ## [v1.102.12](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.12)
 
@@ -37,7 +57,7 @@ Released at 2025-01-28
 
 **v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/enterprise.html).
 All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
-The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/CHANGELOG.html#v1970) release**
+The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/changelog/#v1970) release**
 
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/single-server-victoriametrics/), `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/) and [vmagent](https://docs.victoriametrics.com/vmagent/): log metric names for signals with unsupported delta temporality on ingestion via [OpenTelemetry protocol for metrics](https://docs.victoriametrics.com/#sending-data-via-opentelemetry). Thanks to @chenlujjj for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/8018).
 * BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/) and [vmselect](https://docs.victoriametrics.com/cluster-victoriametrics/): respect staleness detection in increase, increase_pure and delta functions when time series has gaps and `-search.maxStalenessInterval` is set. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/8072) for details.
@@ -49,8 +69,9 @@ Released at 2025-01-24
 * SECURITY: upgrade Go builder from Go1.23.4 to Go1.23.5. See the list of issues addressed in [Go1.23.5](https://github.com/golang/go/issues?q=milestone%3AGo1.23.5+label%3ACherryPickApproved).
 
 * FEATURE: [MetricsQL](https://docs.victoriametrics.com/metricsql/): allow executing queries with `$__interval` and `$__rate_interval` - these placeholders are automatically replaced with `1i` (e.g. `step` arg value at [`/api/v1/query_range`](https://docs.victoriametrics.com/keyconcepts/#range-query)) during query execution. This simplifies copying queries from Grafana dashboards.
+* FEATURE: [MetricsQL](https://docs.victoriametrics.com/metricsql/): allow specifying metric names in quotes inside `{}` braces: `{"metric_name", job="foo"}` is equal to `metric_name{job="foo"}`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7703) for details.
 * FEATURE: [vmsingle](https://docs.victoriametrics.com/single-server-victoriametrics/) and `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): add command-line flag `-search.maxDeleteDuration(default 5m)` to limit the duration of the `/api/v1/admin/tsdb/delete_series` call. Previously, the call is limited by `-search.maxQueryDuration`.
-* FEATURE: [dashboards](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards): all dashboards that use [VictoriaMetrics Grafana datasource](https://github.com/VictoriaMetrics/victoriametrics-datasource) were updated to use a [new datasource ID](https://github.com/VictoriaMetrics/victoriametrics-datasource/releases/tag/v0.12.0). 
+* FEATURE: [dashboards](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/dashboards): all dashboards that use [VictoriaMetrics Grafana datasource](https://github.com/VictoriaMetrics/victoriametrics-datasource) were updated to use a [new datasource ID](https://github.com/VictoriaMetrics/victoriametrics-datasource/releases/tag/v0.12.0).
 * FEATURE: [vmui](https://docs.victoriametrics.com/#vmui): reflect column settings for the table view in URL, so the table view can be shared via link. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7662).
 
 * BUGFIX: [vmauth](https://docs.victoriametrics.com/vmauth/): fix possible runtime panic during requests processing under heavy load. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/8051) for details.
@@ -60,11 +81,14 @@ Released at 2025-01-24
 * BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/) and [vmselect](https://docs.victoriametrics.com/cluster-victoriametrics/): respect staleness detection in increase, increase_pure and delta functions when time series has gaps and `-search.maxStalenessInterval` is set. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/8072) for details.
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/single-server-victoriametrics/), `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/) and [vmagent](https://docs.victoriametrics.com/vmagent/): allow ingesting histograms with missing `_sum` metric via [OpenTelemetry ingestion protocol](https://docs.victoriametrics.com/#sending-data-via-opentelemetry) in the same way as Prometheus does.
 * BUGFIX: [vmui](https://docs.victoriametrics.com/#vmui): fix an issue where pressing the "Enter" key in the query editor did not execute the query. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/8058).
+* BUGFIX: [export API](https://docs.victoriametrics.com/#how-to-export-time-series): cancel export process on client connection close. Previously client connection close was ignored and VictoriaMetrics started to hog CPU by exporting metrics to nowhere until it export all of them.
 
 ## [v1.102.11](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.11)
 
 Released at 2025-01-24
 
+It is recommended upgrading to [v1.102.12](https://docs.victoriametrics.com/changelog/#v110212) because [v1.102.11](https://docs.victoriametrics.com/changelog/#v110211) contains a bug with staleness detection.
+
 **v1.102.x is a line of [LTS releases](https://docs.victoriametrics.com/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/enterprise.html).
 All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
 The v1.102.x line will be supported for at least 12 months since [v1.102.0](https://docs.victoriametrics.com/changelog/#v11020) release**
@@ -81,9 +105,11 @@ The v1.102.x line will be supported for at least 12 months since [v1.102.0](http
 
 Released at 2025-01-24
 
+It is recommended upgrading to [v1.97.17](https://docs.victoriametrics.com/changelog/#v19717) because [v1.97.16](https://docs.victoriametrics.com/changelog/#v19716) contains a bug with staleness detection.
+
 **v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/enterprise.html).
 All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
-The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/CHANGELOG.html#v1970) release**
+The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/changelog/#v1970) release**
 
 * BUGFIX: all VictoriaMetrics [enterprise](https://docs.victoriametrics.com/enterprise/) components: remove unnecessary delay before failing if all online verification attempts have failed. This should reduce the time required for the component to proceed if all online verification attempts have failed.
 * BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/) and [vmselect](https://docs.victoriametrics.com/cluster-victoriametrics/): don't take into account the last raw sample before the lookbehind window is sample exceeds the staleness interval. This affects correctness of increase, increase_pure, delta functions when preforming calculations on time series with gaps. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/8002) for details.
@@ -123,7 +149,7 @@ Released at 2025-01-14
 * BUGFIX: [vmauth](https://docs.victoriametrics.com/vmauth/): properly set `host` field at debug information formatted with `dump_request_on_errors: true` setting.
 * BUGFIX: [vmauth](https://docs.victoriametrics.com/vmauth/): properly handle discovery for ipv6 addresses. Thanks to @badie for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7955).
 * BUGFIX: [vmctl](https://docs.victoriametrics.com/vmctl/): fix support for migrating influx series without any tag. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7921). Thanks to @bitbidu for reporting.
-* BUGFIX: [vminsert](https://docs.victoriametrics.com/vminsert/): storage nodes defined in `-storageNode` are now sorted, ensuring that varying node orders across different vminsert instances do not result in inconsistent replication.
+* BUGFIX: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): storage nodes defined in `-storageNode` are now sorted, ensuring that varying node orders across different vminsert instances do not result in inconsistent replication.
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/single-server-victoriametrics/) and `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): properly ingest `influx` line protocol metrics with empty tags. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7933) for details.
 * BUGFIX: [vmselect](https://docs.victoriametrics.com/cluster-victoriametrics/): allow to override the default unique time series limit in vmstorage with command-line flags like `-search.maxUniqueTimeseries`, `-search.maxLabelsAPISeries`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7852).
 * BUGFIX: [vmselect](https://docs.victoriametrics.com/cluster-victoriametrics/): properly set tenancy information when evaluating numbers in a query. Previously, the tenancy information could lead to mismatch between query result and a number. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7987) for the details.
@@ -140,8 +166,7 @@ Released at 2025-01-14
 * BUGFIX: [vmui](https://docs.victoriametrics.com/#vmui): fix cursor reset in query input field. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7288).
 * BUGFIX: [vmauth](https://docs.victoriametrics.com/vmauth/): properly handle discovery for ipv6 addresses. Thanks to @badie for the [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7955).
 * BUGFIX: [vmctl](https://docs.victoriametrics.com/vmctl/): fix support for migrating influx series without any tag. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7921). Thanks to @bitbidu for reporting.
-* BUGFIX: [vminsert](https://docs.victoriametrics.com/vminsert/): storage nodes defined in `-storageNode` are now sorted, ensuring that varying node orders across different vminsert instances do not result in inconsistent replication.
-
+* BUGFIX: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): storage nodes defined in `-storageNode` are now sorted, ensuring that varying node orders across different vminsert instances do not result in inconsistent replication.
 
 ## [v1.97.15](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.15)
 
@@ -151,7 +176,7 @@ Released at 2025-01-14
 
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/single-server-victoriametrics/), `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): make instant query results consistent. VictoriaMetrics detects and adjusts scrape interval and while this is very useful for range queries (i.e. this eliminates gaps on the graph), it may cause instant queries to return a non-empty result when no result is expected. The fix is to disable scrape interval detection and always use the step as the scrape interval in instant queries. This will guarantee that the samples are searched within the (time-step, time] interval. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5796) for details.
 * BUGFIX: [vmctl](https://docs.victoriametrics.com/vmctl/): fix support for migrating influx series without any tag. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7921). Thanks to @bitbidu for reporting.
-* BUGFIX: [vminsert](https://docs.victoriametrics.com/vminsert/): storage nodes defined in `-storageNode` are now sorted, ensuring that varying node orders across different vminsert instances do not result in inconsistent replication.
+* BUGFIX: `vminsert` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): storage nodes defined in `-storageNode` are now sorted, ensuring that varying node orders across different vminsert instances do not result in inconsistent replication.
 
 ## [v1.108.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.108.1)
 

docs/changelog/CHANGELOG_2024.md

@@ -728,7 +728,7 @@ Released at 2024-12-13
 
 **v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/enterprise.html).
 All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
-The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/CHANGELOG.html#v1970) release**
+The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/changelog/#v1970) release**
 
 * SECURITY: upgrade base docker image (Alpine) from 3.20.3 to 3.21.0. See [alpine 3.21.0 release notes](https://alpinelinux.org/posts/Alpine-3.21.0-released.html).
 * SECURITY: upgrade Go builder from Go1.23.3 to Go1.23.4. See the list of issues addressed in [Go1.23.4](https://github.com/golang/go/issues?q=milestone%3AGo1.23.4+label%3ACherryPickApproved).
@@ -748,7 +748,7 @@ Released at 2024-11-29
 
 **v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/enterprise.html).
 All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
-The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/CHANGELOG.html#v1970) release**
+The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/changelog/#v1970) release**
 
 * BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent): return `200 OK` HTTP status code when importing data via [Pushgateway protocol](https://docs.victoriametrics.com/#how-to-import-data-in-prometheus-exposition-format) using [multitenant URL format](https://docs.victoriametrics.com/cluster-victoriametrics/#url-format). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3636) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7571).
 * BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent): properly set `TCP` connection timeout for `Kubernetes API server` connection for metric scrapping with `kubernetes_sd_configs`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7127).
@@ -762,7 +762,7 @@ Released at 2024-11-15
 
 **v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/enterprise.html).
 All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
-The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/CHANGELOG.html#v1970) release**
+The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/changelog/#v1970) release**
 
 * BUGFIX: [vmctl](https://docs.victoriametrics.com/vmctl/): drop rows that do not belong to the current series during import. The dropped rows should belong to another series whose tags are a superset of the current series. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7301) and [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7330). Thanks to @dpedu for reporting and cooperating with the test.
 * BUGFIX: [vmsingle](https://docs.victoriametrics.com/single-server-victoriametrics/), `vmselect` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): keep the order of resulting time series when `limit_offset` is applied. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7068).
@@ -776,7 +776,7 @@ Released at 2024-11-04
 
 **v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/enterprise.html).
 All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
-The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/CHANGELOG.html#v1970) release**
+The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/changelog/#v1970) release**
 
 * BUGFIX: [vmalert](https://docs.victoriametrics.com/vmalert): properly set `group_name` and `file` fields for recording rules in `/api/v1/rules`.
 * BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): prevent panic when ingesting samples which are outside of configured [retention filters](https://docs.victoriametrics.com/#retention-filters). This could happen when backfilling data with retention filters which exclude samples from the backfill range.
@@ -787,7 +787,7 @@ Released at 2024-10-21
 
 **v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/enterprise.html).
 All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
-The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/CHANGELOG.html#v1970) release**
+The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/changelog/#v1970) release**
 
 * BUGFIX: [vmui](https://docs.victoriametrics.com/#vmui): fix error messages rendering from overflowing the screen with long messages. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7207).
 * BUGFIX: [vmctl](https://docs.victoriametrics.com/vmctl/): properly add metrics tags for `opentsdb` migration source. Previously it could have empty values. See [this PR](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7161).
@@ -800,7 +800,7 @@ Released at 2024-10-02
 
 **v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/enterprise.html).
 All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
-The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/CHANGELOG.html#v1970) release**
+The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/changelog/#v1970) release**
 
 * BUGFIX: [MetricsQL](https://docs.victoriametrics.com/metricsql/): consistently return the first non-`NaN` value from [`range_first`](https://docs.victoriametrics.com/metricsql/#range_first) function across all the returned data points. Previously `NaN` data points weren't replaced with the first non-`NaN` value.
 
@@ -830,7 +830,7 @@ Released at 2024-08-28
 
 **v1.97.x is a line of [LTS releases](https://docs.victoriametrics.com/lts-releases/). It contains important up-to-date bugfixes for [VictoriaMetrics enterprise](https://docs.victoriametrics.com/enterprise.html).
 All these fixes are also included in [the latest community release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
-The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/CHANGELOG.html#v1970) release**
+The v1.97.x line will be supported for at least 12 months since [v1.97.0](https://docs.victoriametrics.com/changelog/#v1970) release**
 
 * BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent): fixes `proxy_url` authorization for scrape targets. Previously proxy authorization configuration was ignored for `https` targets. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6771) issue for details.
 * BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent/) fix service discovery of Azure Virtual Machines for response contains `nextLink`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6784).

docs/guides/migrate-from-influx/README.md

@@ -258,12 +258,13 @@ consider [backfilling tips](https://docs.victoriametrics.com/single-server-victo
     * _VictoriaMetrics may return non-existing data points if `step` param is lower than the actual data resolution. See
       more about this [here](https://docs.victoriametrics.com/keyconcepts/#range-query)._
 * How do I get the `real` last data point, not `ephemeral`?
-    * _[last_over_time](https://docs.victoriametrics.com/metricsql/#last_over_time) function can be used for
-      limiting the lookbehind window for calculated data. For example, `last_over_time(metric[10s])` would return
-      calculated samples only if the real samples are located closer than 10 seconds to the calculated timestamps
-      according to
-      `start`, `end` and `step` query args passed
+    * _[last_over_time](https://docs.victoriametrics.com/metricsql/#last_over_time) function returns last value on 
+      the given look-behind window. For example, `last_over_time(metric[10s])` would return
+      sample values only if the real samples are located closer than 10 seconds to the calculated timestamps
+      according to `start`, `end` and `step` query args passed
       to [range query](https://docs.victoriametrics.com/keyconcepts/#range-query)._
+    * _[tlast_over_time](https://docs.victoriametrics.com/metricsql/#tlast_over_time) function returns last timestamp on
+      the given look-behind window, similarly to [last_over_time](https://docs.victoriametrics.com/metricsql/#last_over_time)._
 * How do I get raw data points with MetricsQL?
     * _For getting raw data points specify the interval at which you want them in square brackets and send
       as [instant query](https://docs.victoriametrics.com/keyconcepts/#instant-query). For

docs/helm/CONTRIBUTING.md

@@ -31,6 +31,7 @@ git branch
 
 * Make your changes and tests to the new branch.
 * Run command ``helm-docs`` to update content of ``README.md`` file of all charts using the ``README.md.gotmpl`` template.
+* Add a line to the ``CHANGELOG.md`` file of the modified chart with the changes made.
 * Commit the changes to the branch.
 * Push files to repository remote with command:
 

docs/helm/victoria-logs-single/CHANGELOG.md

@@ -1,6 +1,6 @@
 ## Next release
 
-- TODO
+- vector chart 0.37.x -> 0.40.x
 
 ## 0.8.14
 

docs/helm/victoria-metrics-agent/CHANGELOG.md

@@ -2,6 +2,14 @@
 
 - TODO
 
+## 0.15.6
+
+**Release date:** 27 Jan 2025
+
+![Helm: v3](https://img.shields.io/badge/Helm-v3.14%2B-informational?color=informational&logo=helm&link=https%3A%2F%2Fgithub.com%2Fhelm%2Fhelm%2Freleases%2Ftag%2Fv3.14.0) ![AppVersion: v1.110.0](https://img.shields.io/badge/v1.110.0-success?logo=VictoriaMetrics&labelColor=gray&link=https%3A%2F%2Fdocs.victoriametrics.com%2Fchangelog%23v11100)
+
+- bump version of VM components to [v1.110.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.110.0)
+
 ## 0.15.5
 
 **Release date:** 17 Jan 2025

docs/helm/victoria-metrics-agent/README.md

@@ -1,6 +1,6 @@
 
 
-![Version](https://img.shields.io/badge/0.15.5-gray?logo=Helm&labelColor=gray&link=https%3A%2F%2Fdocs.victoriametrics.com%2Fhelm%2Fvictoria-metrics-agent%2Fchangelog%2F%230155)
+![Version](https://img.shields.io/badge/0.15.6-gray?logo=Helm&labelColor=gray&link=https%3A%2F%2Fdocs.victoriametrics.com%2Fhelm%2Fvictoria-metrics-agent%2Fchangelog%2F%230156)
 ![ArtifactHub](https://img.shields.io/badge/ArtifactHub-informational?logoColor=white&color=417598&logo=artifacthub&link=https%3A%2F%2Fartifacthub.io%2Fpackages%2Fhelm%2Fvictoriametrics%2Fvictoria-metrics-agent)
 ![License](https://img.shields.io/github/license/VictoriaMetrics/helm-charts?labelColor=green&label=&link=https%3A%2F%2Fgithub.com%2FVictoriaMetrics%2Fhelm-charts%2Fblob%2Fmaster%2FLICENSE)
 ![Slack](https://img.shields.io/badge/Join-4A154B?logo=slack&link=https%3A%2F%2Fslack.victoriametrics.com)

docs/helm/victoria-metrics-alert/CHANGELOG.md

@@ -2,6 +2,14 @@
 
 - TODO
 
+## 0.13.8
+
+**Release date:** 27 Jan 2025
+
+![Helm: v3](https://img.shields.io/badge/Helm-v3.14%2B-informational?color=informational&logo=helm&link=https%3A%2F%2Fgithub.com%2Fhelm%2Fhelm%2Freleases%2Ftag%2Fv3.14.0) ![AppVersion: v1.110.0](https://img.shields.io/badge/v1.110.0-success?logo=VictoriaMetrics&labelColor=gray&link=https%3A%2F%2Fdocs.victoriametrics.com%2Fchangelog%23v11100)
+
+- bump version of VM components to [v1.110.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.110.0)
+
 ## 0.13.7
 
 **Release date:** 17 Jan 2025

docs/helm/victoria-metrics-alert/README.md

@@ -1,6 +1,6 @@
 
 
-![Version](https://img.shields.io/badge/0.13.7-gray?logo=Helm&labelColor=gray&link=https%3A%2F%2Fdocs.victoriametrics.com%2Fhelm%2Fvictoria-metrics-alert%2Fchangelog%2F%230137)
+![Version](https://img.shields.io/badge/0.13.8-gray?logo=Helm&labelColor=gray&link=https%3A%2F%2Fdocs.victoriametrics.com%2Fhelm%2Fvictoria-metrics-alert%2Fchangelog%2F%230138)
 ![ArtifactHub](https://img.shields.io/badge/ArtifactHub-informational?logoColor=white&color=417598&logo=artifacthub&link=https%3A%2F%2Fartifacthub.io%2Fpackages%2Fhelm%2Fvictoriametrics%2Fvictoria-metrics-alert)
 ![License](https://img.shields.io/github/license/VictoriaMetrics/helm-charts?labelColor=green&label=&link=https%3A%2F%2Fgithub.com%2FVictoriaMetrics%2Fhelm-charts%2Fblob%2Fmaster%2FLICENSE)
 ![Slack](https://img.shields.io/badge/Join-4A154B?logo=slack&link=https%3A%2F%2Fslack.victoriametrics.com)

docs/helm/victoria-metrics-anomaly/CHANGELOG.md

@@ -2,6 +2,14 @@
 
 - TODO
 
+## 1.7.2
+
+**Release date:** 27 Jan 2025
+
+![Helm: v3](https://img.shields.io/badge/Helm-v3.14%2B-informational?color=informational&logo=helm&link=https%3A%2F%2Fgithub.com%2Fhelm%2Fhelm%2Freleases%2Ftag%2Fv3.14.0) ![AppVersion: v1.19.2](https://img.shields.io/badge/v1.19.2-success?logo=VictoriaMetrics&labelColor=gray&link=https%3A%2F%2Fdocs.victoriametrics.com%2Fanomaly-detection%2Fchangelog%23v1192)
+
+- Upgraded ['vmanomaly`](https://docs.victoriametrics.com/anomaly-detection/) to [1.19.2](https://docs.victoriametrics.com/anomaly-detection/changelog/#v1192).
+
 ## 1.7.1
 
 **Release date:** 21 Jan 2025

docs/helm/victoria-metrics-anomaly/README.md

@@ -1,6 +1,6 @@
 
 
-![Version](https://img.shields.io/badge/1.7.1-gray?logo=Helm&labelColor=gray&link=https%3A%2F%2Fdocs.victoriametrics.com%2Fhelm%2Fvictoria-metrics-anomaly%2Fchangelog%2F%23171)
+![Version](https://img.shields.io/badge/1.7.2-gray?logo=Helm&labelColor=gray&link=https%3A%2F%2Fdocs.victoriametrics.com%2Fhelm%2Fvictoria-metrics-anomaly%2Fchangelog%2F%23172)
 ![ArtifactHub](https://img.shields.io/badge/ArtifactHub-informational?logoColor=white&color=417598&logo=artifacthub&link=https%3A%2F%2Fartifacthub.io%2Fpackages%2Fhelm%2Fvictoriametrics%2Fvictoria-metrics-anomaly)
 ![License](https://img.shields.io/github/license/VictoriaMetrics/helm-charts?labelColor=green&label=&link=https%3A%2F%2Fgithub.com%2FVictoriaMetrics%2Fhelm-charts%2Fblob%2Fmaster%2FLICENSE)
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docs/helm/victoria-metrics-auth/CHANGELOG.md

@@ -2,6 +2,14 @@
 
 - TODO
 
+## 0.8.6
+
+**Release date:** 27 Jan 2025
+
+![Helm: v3](https://img.shields.io/badge/Helm-v3.14%2B-informational?color=informational&logo=helm&link=https%3A%2F%2Fgithub.com%2Fhelm%2Fhelm%2Freleases%2Ftag%2Fv3.14.0) ![AppVersion: v1.110.0](https://img.shields.io/badge/v1.110.0-success?logo=VictoriaMetrics&labelColor=gray&link=https%3A%2F%2Fdocs.victoriametrics.com%2Fchangelog%23v11100)
+
+- bump version of VM components to [v1.110.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.110.0)
+
 ## 0.8.5
 
 **Release date:** 17 Jan 2025