feature: [logger] update comments

.github/ISSUE_TEMPLATE/question.yml

@@ -5,7 +5,7 @@ body:
   - type: textarea
     id: describe-the-component
     attributes:
-      label: Is your question related to a specific component?
+      label: Is your question request related to a specific component?
       placeholder: |
         VictoriaMetrics, vmagent, vmalert, vmui, etc...
     validations:

.github/dependabot.yml

@@ -4,8 +4,6 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
-    cooldown:
-      default-days: 21
   - package-ecosystem: "gomod"
     directory: "/"
     schedule:
@@ -25,8 +23,6 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
-    cooldown:
-      default-days: 21
   - package-ecosystem: "npm"
     directory: "/app/vmui/packages/vmui"
     schedule:

.github/pull_request_template.md

@@ -1,3 +1,10 @@
-**PLEASE REMOVE LINE BELOW BEFORE SUBMITTING**
+### Describe Your Changes
 
-Before creating the PR, make sure you have read and followed the [VictoriaMetrics contributing guidelines](https://docs.victoriametrics.com/victoriametrics/contributing/#pull-request-checklist).
+Please provide a brief description of the changes you made. Be as specific as possible to help others understand the purpose and impact of your modifications.
+
+### Checklist
+
+The following checks are **mandatory**:
+
+- [ ] My change adheres to [VictoriaMetrics contributing guidelines](https://docs.victoriametrics.com/victoriametrics/contributing/#pull-request-checklist).
+- [ ] My change adheres to [VictoriaMetrics development goals](https://docs.victoriametrics.com/victoriametrics/goals/).

.github/scripts/lint-changelog-tip.sh

@@ -1,48 +0,0 @@
-#!/usr/bin/env sh
-
-set -e
-
-CHANGELOG_FILE="docs/victoriametrics/changelog/CHANGELOG.md"
-
-GITHUB_BASE_REF=${GITHUB_BASE_REF:-"master"}
-GIT_REMOTE=${GIT_REMOTE:-"origin"}
-
-git diff "${GIT_REMOTE}/${GITHUB_BASE_REF}"...HEAD -- $CHANGELOG_FILE > diff.txt
-if ! grep -q "^+" diff.txt; then
-  echo "No additions in CHANGELOG.md"
-  exit 0
-fi
-
-ADDED_LINES=$(grep "^+\S" diff.txt | sed 's/^+//')
-
-START_TIP=$(grep -n "^## tip" "$CHANGELOG_FILE" | head -1 | cut -d: -f1)
-if [ -z "$START_TIP" ]; then
-  echo "ERROR: ${CHANGELOG_FILE} does not contain a ## tip section"
-  exit 1
-fi
-
-END_TIP=$(awk "NR>$START_TIP && /^## / {print NR; exit}" "${CHANGELOG_FILE}")
-if [ -z "$END_TIP" ]; then
-  END_TIP=$(wc -l < "$CHANGELOG_FILE")
-fi
-
-BAD=0
-while IFS= read -r line; do
-  # Grep exact line inside the file and get line numbers
-  MATCHES=$(grep -n -F "$line" "$CHANGELOG_FILE" | cut -d: -f1)
-  for m in $MATCHES; do
-    if [ "$m" -lt "$START_TIP" ] || [ "$m" -gt "$END_TIP" ]; then
-      echo "'$line' on line ${m} is outside ## tip section (lines ${START_TIP}-${END_TIP})"
-      BAD=1
-    fi
-  done
-done << EOF
-$ADDED_LINES
-EOF
-
-if [ "$BAD" -ne 0 ]; then
-  echo "CHANGELOG modifications must be placed inside the ## tip section."
-  exit 1
-fi
-
-echo "CHANGELOG modifications are valid."

.github/workflows/build.yml

@@ -7,20 +7,16 @@ on:
       - master
     paths:
       - '**.go'
-      - '**/Dockerfile'
+      - '**/Dockerfile*' # The trailing * is for app/vmui/Dockerfile-*.
       - '**/Makefile'
-      - '!app/vmui/**'
-      - '.github/workflows/build.yml'
   pull_request:
     branches:
       - cluster
       - master
     paths:
       - '**.go'
-      - '**/Dockerfile'
+      - '**/Dockerfile*' # The trailing * is for app/vmui/Dockerfile-*.
       - '**/Makefile'
-      - '!app/vmui/**'
-      - '.github/workflows/build.yml'
 
 permissions:
   contents: read
@@ -31,53 +27,28 @@ concurrency:
 
 jobs:
   build:
-    name: ${{ matrix.os }}-${{ matrix.arch }}
+    name: Build
     runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - os: linux
-            arch: 386
-          - os: linux
-            arch: amd64
-          - os: linux
-            arch: arm64
-          - os: linux
-            arch: arm
-          - os: linux
-            arch: ppc64le
-          - os: linux
-            arch: s390x
-          - os: darwin
-            arch: amd64
-          - os: darwin
-            arch: arm64
-          - os: freebsd
-            arch: amd64
-          - os: openbsd
-            arch: amd64
-          - os: netbsd
-            arch: amd64
-          - os: windows
-            arch: amd64
     steps:
       - name: Code checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
 
       - name: Setup Go
         id: go
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@v5
         with:
-          cache-dependency-path: |
-            go.sum
-            Makefile
-            app/**/Makefile
-          go-version-file: 'go.mod'
-      - run: go version
+          go-version: stable
+          cache: false
 
-      - name: Build victoria-metrics for ${{ matrix.os }}-${{ matrix.arch }}
-        run: make victoria-metrics-${{ matrix.os }}-${{ matrix.arch }}
+      - name: Cache Go artifacts
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/go-build
+            ~/go/bin
+            ~/go/pkg/mod
+          key: go-artifacts-${{ runner.os }}-crossbuild-${{ steps.go.outputs.go-version }}-${{ hashFiles('go.sum', 'Makefile', 'app/**/Makefile') }}
+          restore-keys: go-artifacts-${{ runner.os }}-crossbuild-
 
-      - name: Build vmutils for ${{ matrix.os }}-${{ matrix.arch }}
-        run: make vmutils-${{ matrix.os }}-${{ matrix.arch }}
+      - name: Run crossbuild
+        run: make crossbuild

.github/workflows/changelog-linter.yml

@@ -1,19 +0,0 @@
-name: 'changelog-linter'
-
-on:
-  pull_request:
-    paths:
-      - "docs/victoriametrics/changelog/CHANGELOG.md"
-
-jobs:
-  tip-lint:
-    runs-on: 'ubuntu-latest'
-    steps:
-      - uses: 'actions/checkout@v6'
-        with:
-          # needed for proper diff
-          fetch-depth: 0
-
-      - name: 'Validate that changelog changes are under ## tip'
-        run: |
-          GITHUB_BASE_REF=${{ github.base_ref }} ./.github/scripts/lint-changelog-tip.sh

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

@@ -1,47 +0,0 @@
-name: check-commit-signed
-
-on:
-  pull_request:
-
-jobs:
-  check-commit-signed:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v6
-        with:
-          fetch-depth: 0  # we need full history for commit verification
-
-      - name: Check commit signatures
-        run: |
-          if [ "${{ github.event_name }}" != "pull_request" ]; then
-            echo "Not a PR event, skipping signature check"
-            exit 0
-          fi
-          
-          RANGE="${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }}"
-          echo "Checking commits in PR range: $RANGE"
-          
-          if [ -z "$(git rev-list $RANGE)" ]; then
-            echo "No new commits in this PR, skipping signature check"
-            exit 0
-          fi
-          
-          # Check raw commit objects for a "gpgsig" header as a fast early signal for
-          # contributors. Both GPG and SSH signatures use this header. 
-          # This avoids relying on %G? which returns N for SSH commits.
-          # This check is not a security enforcement — unsigned commits cannot be merged
-          # anyway due to the GitHub repository merge policy.
-          unsigned=""
-          for sha in $(git rev-list $RANGE); do
-            if ! git cat-file commit "$sha" | grep -q "^gpgsig"; then
-              unsigned="$unsigned $sha"
-            fi
-          done
-          if [ -n "$unsigned" ]; then
-            echo "Found unsigned commits:"
-            echo "$unsigned"
-            exit 1
-          fi
-
-          echo "All commits in PR are signed (GPG or SSH)"

.github/workflows/check-licenses.yml

@@ -19,22 +19,20 @@ jobs:
 
       - name: Setup Go
         id: go
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@v5
         with:
-          go-version-file: 'go.mod'
+          go-version: stable
           cache: false
 
-      - run: go version
-
       - name: Cache Go artifacts
-        uses: actions/cache@v5
+        uses: actions/cache@v4
         with:
           path: |
             ~/.cache/go-build
             ~/go/pkg/mod
             ~/go/bin
           key: go-artifacts-${{ runner.os }}-check-licenses-${{ steps.go.outputs.go-version }}-${{ hashFiles('go.sum', 'Makefile', 'app/**/Makefile') }}
-          restore-keys: go-artifacts-${{ runner.os }}-check-licenses-${{ steps.go.outputs.go-version }}-
+          restore-keys: go-artifacts-${{ runner.os }}-check-licenses-
 
       - name: Check License
         run: make check-licenses

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

@@ -29,35 +29,34 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
 
       - name: Set up Go
         id: go
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@v5
         with:
           cache: false
-          go-version-file: 'go.mod'
-      - run: go version
+          go-version: stable
 
       - name: Cache Go artifacts
-        uses: actions/cache@v5
+        uses: actions/cache@v4
         with:
           path: |
             ~/.cache/go-build
             ~/go/bin
             ~/go/pkg/mod
           key: go-artifacts-${{ runner.os }}-codeql-analyze-${{ steps.go.outputs.go-version }}-${{ hashFiles('go.sum', 'Makefile', 'app/**/Makefile') }}
-          restore-keys: go-artifacts-${{ runner.os }}-codeql-analyze-${{ steps.go.outputs.go-version }}-
+          restore-keys: go-artifacts-${{ runner.os }}-codeql-analyze-
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v4.35.2
+        uses: github/codeql-action/init@v3
         with:
           languages: go
 
       - name: Autobuild
-        uses: github/codeql-action/autobuild@v4.35.2
+        uses: github/codeql-action/autobuild@v3
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v4.35.2
+        uses: github/codeql-action/analyze@v3
         with:
           category: 'language:go'

.github/workflows/codeql-analysis-js-ts.yml

@@ -0,0 +1,46 @@
+name: 'CodeQL JS/TS'
+
+on:
+  push:
+    branches:
+      - cluster
+      - master
+    paths:
+      - '**.js'
+      - '**.ts'
+      - '**.tsx'
+  pull_request:
+    branches:
+      - cluster
+      - master
+    paths:
+      - '**.js'
+      - '**.ts'
+      - '**.tsx'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: javascript-typescript
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3
+        with:
+          category: 'language:js/ts'

.github/workflows/docs.yaml

@@ -16,19 +16,19 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Code checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           path: __vm
 
       - name: Checkout private code
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
         with:
           repository: VictoriaMetrics/vmdocs
           token: ${{ secrets.VM_BOT_GH_TOKEN }}
           path: __vm-docs
 
       - name: Import GPG key
-        uses: crazy-max/ghaction-import-gpg@v7
+        uses: crazy-max/ghaction-import-gpg@v6
         id: import-gpg
         with:
           gpg_private_key: ${{ secrets.VM_BOT_GPG_PRIVATE_KEY }}

.github/workflows/main.yml

@@ -0,0 +1,122 @@
+name: main
+
+on:
+  push:
+    branches:
+      - cluster
+      - master
+    paths:
+      - '**.go'
+  pull_request:
+    branches:
+      - cluster
+      - master
+    paths:
+      - '**.go'
+
+permissions:
+  contents: read
+
+concurrency:
+  cancel-in-progress: true
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+
+jobs:
+  lint:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Code checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Go
+        id: go
+        uses: actions/setup-go@v5
+        with:
+          cache: false
+          go-version: stable
+
+      - name: Cache Go artifacts
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/go-build
+            ~/go/bin
+            ~/go/pkg/mod
+          key: go-artifacts-${{ runner.os }}-check-all-${{ steps.go.outputs.go-version }}-${{ hashFiles('go.sum', 'Makefile', 'app/**/Makefile') }}
+          restore-keys: go-artifacts-${{ runner.os }}-check-all-
+
+      - name: Run check-all
+        run: |
+          make check-all
+          git diff --exit-code
+
+  test:
+    name: test
+    needs: lint
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        scenario:
+          - 'test-full'
+          - 'test-full-386'
+          - 'test-pure'
+
+    steps:
+      - name: Code checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Go
+        id: go
+        uses: actions/setup-go@v5
+        with:
+          cache: false
+          go-version: stable
+
+      - name: Cache Go artifacts
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/go-build
+            ~/go/bin
+            ~/go/pkg/mod
+          key: go-artifacts-${{ runner.os }}-${{ matrix.scenario }}-${{ steps.go.outputs.go-version }}-${{ hashFiles('go.sum', 'Makefile', 'app/**/Makefile') }}
+          restore-keys: go-artifacts-${{ runner.os }}-${{ matrix.scenario }}-
+
+      - name: Run tests
+        run: GOGC=10 make ${{ matrix.scenario}}
+
+      - name: Publish coverage
+        uses: codecov/codecov-action@v5
+        with:
+          files: ./coverage.txt
+
+  integration-test:
+    name: integration-test
+    needs: [lint, test]
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Code checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Go
+        id: go
+        uses: actions/setup-go@v5
+        with:
+          cache: false
+          go-version: stable
+
+      - name: Cache Go artifacts
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/go-build
+            ~/go/bin
+            ~/go/pkg/mod
+          key: go-artifacts-${{ runner.os }}-${{ matrix.scenario }}-${{ steps.go.outputs.go-version }}-${{ hashFiles('go.sum', 'Makefile', 'app/**/Makefile') }}
+          restore-keys: go-artifacts-${{ runner.os }}-${{ matrix.scenario }}-
+
+      - name: Run integration tests
+        run: make integration-test

.github/workflows/test.yml

@@ -1,111 +0,0 @@
-name: test
-
-on:
-  push:
-    branches:
-      - cluster
-      - master
-    paths:
-      - '**.go'
-      - 'go.*'
-      - '.github/workflows/main.yml'
-  pull_request:
-    branches:
-      - cluster
-      - master
-    paths:
-      - '**.go'
-      - 'go.*'
-      - '.github/workflows/main.yml'
-
-permissions:
-  contents: read
-
-concurrency:
-  cancel-in-progress: true
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
-
-
-jobs:
-  lint:
-    name: lint
-    runs-on: ubuntu-latest
-    steps:
-      - name: Code checkout
-        uses: actions/checkout@v6
-
-      - name: Setup Go
-        id: go
-        uses: actions/setup-go@v6
-        with:
-          cache-dependency-path: |
-            go.sum
-            Makefile
-            app/**/Makefile
-          go-version-file: 'go.mod'
-
-      - run: go version
-
-      - name: Cache golangci-lint
-        uses: actions/cache@v5
-        with:
-          path: |
-            ~/.cache/golangci-lint
-            ~/go/bin
-          key: golangci-lint-${{ runner.os }}-${{ steps.go.outputs.go-version }}-${{ hashFiles('.golangci.yml') }}
-
-      - name: Run check-all
-        run: |
-          make check-all
-          git diff --exit-code
-
-  unit:
-    name: unit
-    runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        scenario:
-          - 'test'
-          - 'test-386'
-          - 'test-pure'
-
-    steps:
-      - name: Code checkout
-        uses: actions/checkout@v6
-
-      - name: Setup Go
-        id: go
-        uses: actions/setup-go@v6
-        with:
-          cache-dependency-path: |
-            go.sum
-            Makefile
-            app/**/Makefile
-          go-version-file: 'go.mod'
-      - run: go version
-
-      - name: Run tests
-        run: make ${{ matrix.scenario}}
-
-  apptest:
-    name: apptest
-    runs-on: apptest
-
-    steps:
-      - name: Code checkout
-        uses: actions/checkout@v6
-
-      - name: Setup Go
-        id: go
-        uses: actions/setup-go@v6
-        with:
-          cache-dependency-path: |
-            go.sum
-            Makefile
-            app/**/Makefile
-          go-version-file: 'go.mod'
-      - run: go version
-
-      - name: Run app tests
-        run: make apptest

.github/workflows/vmui.yml

@@ -1,88 +0,0 @@
-name: vmui
-
-on:
-  push:
-    branches:
-      - cluster
-      - master
-    paths:
-      - 'app/vmui/packages/vmui/**'
-      - '.github/workflows/vmui.yml'
-  pull_request:
-    branches:
-      - cluster
-      - master
-    paths:
-      - 'app/vmui/packages/vmui/**'
-      - '.github/workflows/vmui.yml'
-
-permissions:
-  contents: read
-  packages: read
-  pull-requests: read
-  checks: write
-
-concurrency:
-  cancel-in-progress: true
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
-
-jobs:
-  vmui-checks:
-    name: VMUI Checks (lint, test, typecheck)
-    runs-on: ubuntu-latest
-    steps:
-      - name: Code checkout
-        uses: actions/checkout@v6
-
-      - name: Cache node_modules
-        id: cache
-        uses: actions/cache@v5
-        with:
-          path: app/vmui/packages/vmui/node_modules
-          key: vmui-deps-${{ runner.os }}-${{ hashFiles('app/vmui/packages/vmui/package-lock.json', 'app/vmui/Dockerfile-build') }}
-          restore-keys: |
-            vmui-deps-${{ runner.os }}-
-
-      - name: Install dependencies
-        if: steps.cache.outputs.cache-hit != 'true'
-        run: make vmui-install
-
-      - name: Run lint
-        id: lint
-        run: make vmui-lint
-        continue-on-error: true
-        env:
-          VMUI_SKIP_INSTALL: true
-
-      - name: Run tests
-        id: test
-        run: make vmui-test
-        continue-on-error: true
-        env:
-          VMUI_SKIP_INSTALL: true
-
-      - name: Run typecheck
-        id: typecheck
-        run: make vmui-typecheck
-        continue-on-error: true
-        env:
-          VMUI_SKIP_INSTALL: true
-
-      - name: Annotate Code Linting Results
-        uses: ataylorme/eslint-annotate-action@v3
-        with:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          report-json: app/vmui/packages/vmui/vmui-lint-report.json
-
-      - name: Check overall status
-        run: |
-          echo "Lint status: ${{ steps.lint.outcome }}"
-          echo "Test status: ${{ steps.test.outcome }}"
-          echo "Typecheck status: ${{ steps.typecheck.outcome }}"
-
-          if [[ "${{ steps.lint.outcome }}" == "failure" || "${{ steps.test.outcome }}" == "failure" || "${{ steps.typecheck.outcome }}" == "failure" ]]; then
-            echo "One or more checks failed"
-            exit 1
-          else
-            echo "All checks passed"
-          fi

.golangci.yml

@@ -1,29 +1,22 @@
-version: "2"
+run:
+  timeout: 2m
+
 linters:
-  settings:
-    errcheck:
-      exclude-functions:
-        - fmt.Fprintf
-        - fmt.Fprint
-        - (net/http.ResponseWriter).Write
-  exclusions:
-    generated: lax
-    presets:
-      - common-false-positives
-      - legacy
-      - std-error-handling
-    rules:
-      - linters:
-          - staticcheck
-        text: 'SA(4003|1019|5011):'
-    paths:
-      - third_party$
-      - builtin$
-      - examples$
-formatters:
-  exclusions:
-    generated: lax
-    paths:
-      - third_party$
-      - builtin$
-      - examples$
+  enable:
+  - revive
+
+issues:
+  exclude-rules:
+  - linters:
+    - staticcheck
+    text: "SA(4003|1019|5011):"
+  include:
+  - EXC0012
+  - EXC0014
+
+linters-settings:
+  errcheck:
+    exclude-functions:
+      - "fmt.Fprintf"
+      - "fmt.Fprint"
+      - "(net/http.ResponseWriter).Write"

LICENSE

@@ -175,7 +175,7 @@
 
    END OF TERMS AND CONDITIONS
 
-   Copyright 2019-2026 VictoriaMetrics, Inc.
+   Copyright 2019-2025 VictoriaMetrics, Inc.
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

Makefile

@@ -11,14 +11,11 @@ ifeq ($(PKG_TAG),)
 PKG_TAG := $(BUILDINFO_TAG)
 endif
 
-EXTRA_DOCKER_TAG_SUFFIX ?=
-EXTRA_GO_BUILD_TAGS ?=
+EXTRA_DOCKER_TAG_SUFFIX ?= EXTRA_DOCKER_TAG_SUFFIX
 
 GO_BUILDINFO = -X '$(PKG_PREFIX)/lib/buildinfo.Version=$(APP_NAME)-$(DATEINFO_TAG)-$(BUILDINFO_TAG)'
 TAR_OWNERSHIP ?= --owner=1000 --group=1000
 
-GOLANGCI_LINT_VERSION := 2.9.0
-
 .PHONY: $(MAKECMDGOALS)
 
 include app/*/Makefile
@@ -27,10 +24,11 @@ include docs/Makefile
 include deployment/*/Makefile
 include dashboards/Makefile
 include package/release/Makefile
-include benchmarks/Makefile
 
 all: \
 	victoria-metrics-prod \
+	victoria-logs-prod \
+	vlogscli-prod \
 	vmagent-prod \
 	vmalert-prod \
 	vmalert-tool-prod \
@@ -54,6 +52,8 @@ publish: \
 
 package: \
 	package-victoria-metrics \
+	package-victoria-logs \
+	package-vlogscli \
 	package-vmagent \
 	package-vmalert \
 	package-vmalert-tool \
@@ -125,15 +125,6 @@ vmutils-linux-ppc64le: \
 	vmrestore-linux-ppc64le \
 	vmctl-linux-ppc64le
 
-vmutils-linux-s390x: \
-	vmagent-linux-s390x \
-	vmalert-linux-s390x \
-	vmalert-tool-linux-s390x \
-	vmauth-linux-s390x \
-	vmbackup-linux-s390x \
-	vmrestore-linux-s390x \
-	vmctl-linux-s390x
-
 vmutils-darwin-amd64: \
 	vmagent-darwin-amd64 \
 	vmalert-darwin-amd64 \
@@ -179,11 +170,9 @@ vmutils-windows-amd64: \
 	vmrestore-windows-amd64 \
 	vmctl-windows-amd64
 
-# When adding a new crossbuild target, please also add it to the .github/workflows/build.yml
 crossbuild:
 	$(MAKE_PARALLEL) victoria-metrics-crossbuild vmutils-crossbuild
 
-# When adding a new crossbuild target, please also add it to the .github/workflows/build.yml
 victoria-metrics-crossbuild: \
 	victoria-metrics-linux-386 \
 	victoria-metrics-linux-amd64 \
@@ -196,7 +185,6 @@ victoria-metrics-crossbuild: \
 	victoria-metrics-openbsd-amd64 \
 	victoria-metrics-windows-amd64
 
-# When adding a new crossbuild target, please also add it to the .github/workflows/build.yml
 vmutils-crossbuild: \
 	vmutils-linux-386 \
 	vmutils-linux-amd64 \
@@ -249,6 +237,10 @@ publish-latest:
 	PKG_TAG=$(TAG)-enterprise APP_NAME=vmgateway $(MAKE) publish-via-docker-latest
 	PKG_TAG=$(TAG)-enterprise APP_NAME=vmbackupmanager $(MAKE) publish-via-docker-latest
 
+publish-victoria-logs-latest:
+	PKG_TAG=$(TAG) APP_NAME=victoria-logs $(MAKE) publish-via-docker-latest
+	PKG_TAG=$(TAG) APP_NAME=vlogscli $(MAKE) publish-via-docker-latest
+
 publish-release:
 	rm -rf bin/*
 	git checkout $(TAG) && $(MAKE) release && $(MAKE) publish && \
@@ -266,7 +258,6 @@ release-victoria-metrics: \
 	release-victoria-metrics-linux-amd64 \
 	release-victoria-metrics-linux-arm \
 	release-victoria-metrics-linux-arm64 \
-	release-victoria-metrics-linux-s390x \
 	release-victoria-metrics-darwin-amd64 \
 	release-victoria-metrics-darwin-arm64 \
 	release-victoria-metrics-freebsd-amd64 \
@@ -285,9 +276,6 @@ release-victoria-metrics-linux-arm:
 release-victoria-metrics-linux-arm64:
 	GOOS=linux GOARCH=arm64 $(MAKE) release-victoria-metrics-goos-goarch
 
-release-victoria-metrics-linux-s390x:
-	GOOS=linux GOARCH=s390x $(MAKE) release-victoria-metrics-goos-goarch
-
 release-victoria-metrics-darwin-amd64:
 	GOOS=darwin GOARCH=amd64 $(MAKE) release-victoria-metrics-goos-goarch
 
@@ -322,12 +310,133 @@ release-victoria-metrics-windows-goarch: victoria-metrics-windows-$(GOARCH)-prod
 	cd bin && rm -rf \
 		victoria-metrics-windows-$(GOARCH)-prod.exe
 
+release-victoria-logs-bundle: \
+	release-victoria-logs \
+	release-vlogscli
+
+publish-victoria-logs-bundle: \
+	publish-victoria-logs \
+	publish-vlogscli
+
+release-victoria-logs:
+	$(MAKE_PARALLEL) release-victoria-logs-linux-386 \
+		release-victoria-logs-linux-amd64 \
+		release-victoria-logs-linux-arm \
+		release-victoria-logs-linux-arm64 \
+		release-victoria-logs-darwin-amd64 \
+		release-victoria-logs-darwin-arm64 \
+		release-victoria-logs-freebsd-amd64 \
+		release-victoria-logs-openbsd-amd64 \
+		release-victoria-logs-windows-amd64
+
+release-victoria-logs-linux-386:
+	GOOS=linux GOARCH=386 $(MAKE) release-victoria-logs-goos-goarch
+
+release-victoria-logs-linux-amd64:
+	GOOS=linux GOARCH=amd64 $(MAKE) release-victoria-logs-goos-goarch
+
+release-victoria-logs-linux-arm:
+	GOOS=linux GOARCH=arm $(MAKE) release-victoria-logs-goos-goarch
+
+release-victoria-logs-linux-arm64:
+	GOOS=linux GOARCH=arm64 $(MAKE) release-victoria-logs-goos-goarch
+
+release-victoria-logs-darwin-amd64:
+	GOOS=darwin GOARCH=amd64 $(MAKE) release-victoria-logs-goos-goarch
+
+release-victoria-logs-darwin-arm64:
+	GOOS=darwin GOARCH=arm64 $(MAKE) release-victoria-logs-goos-goarch
+
+release-victoria-logs-freebsd-amd64:
+	GOOS=freebsd GOARCH=amd64 $(MAKE) release-victoria-logs-goos-goarch
+
+release-victoria-logs-openbsd-amd64:
+	GOOS=openbsd GOARCH=amd64 $(MAKE) release-victoria-logs-goos-goarch
+
+release-victoria-logs-windows-amd64:
+	GOARCH=amd64 $(MAKE) release-victoria-logs-windows-goarch
+
+release-victoria-logs-goos-goarch: victoria-logs-$(GOOS)-$(GOARCH)-prod
+	cd bin && \
+		tar $(TAR_OWNERSHIP) --transform="flags=r;s|-$(GOOS)-$(GOARCH)||" -czf victoria-logs-$(GOOS)-$(GOARCH)-$(PKG_TAG).tar.gz \
+			victoria-logs-$(GOOS)-$(GOARCH)-prod \
+		&& sha256sum victoria-logs-$(GOOS)-$(GOARCH)-$(PKG_TAG).tar.gz \
+			victoria-logs-$(GOOS)-$(GOARCH)-prod \
+			| sed s/-$(GOOS)-$(GOARCH)-prod/-prod/ > victoria-logs-$(GOOS)-$(GOARCH)-$(PKG_TAG)_checksums.txt
+	cd bin && rm -rf victoria-logs-$(GOOS)-$(GOARCH)-prod
+
+release-victoria-logs-windows-goarch: victoria-logs-windows-$(GOARCH)-prod
+	cd bin && \
+		zip victoria-logs-windows-$(GOARCH)-$(PKG_TAG).zip \
+			victoria-logs-windows-$(GOARCH)-prod.exe \
+		&& sha256sum victoria-logs-windows-$(GOARCH)-$(PKG_TAG).zip \
+			victoria-logs-windows-$(GOARCH)-prod.exe \
+			> victoria-logs-windows-$(GOARCH)-$(PKG_TAG)_checksums.txt
+	cd bin && rm -rf \
+		victoria-logs-windows-$(GOARCH)-prod.exe
+
+release-vlogscli:
+	$(MAKE_PARALLEL) release-vlogscli-linux-386 \
+		release-vlogscli-linux-amd64 \
+		release-vlogscli-linux-arm \
+		release-vlogscli-linux-arm64 \
+		release-vlogscli-darwin-amd64 \
+		release-vlogscli-darwin-arm64 \
+		release-vlogscli-freebsd-amd64 \
+		release-vlogscli-openbsd-amd64 \
+		release-vlogscli-windows-amd64
+
+release-vlogscli-linux-386:
+	GOOS=linux GOARCH=386 $(MAKE) release-vlogscli-goos-goarch
+
+release-vlogscli-linux-amd64:
+	GOOS=linux GOARCH=amd64 $(MAKE) release-vlogscli-goos-goarch
+
+release-vlogscli-linux-arm:
+	GOOS=linux GOARCH=arm $(MAKE) release-vlogscli-goos-goarch
+
+release-vlogscli-linux-arm64:
+	GOOS=linux GOARCH=arm64 $(MAKE) release-vlogscli-goos-goarch
+
+release-vlogscli-darwin-amd64:
+	GOOS=darwin GOARCH=amd64 $(MAKE) release-vlogscli-goos-goarch
+
+release-vlogscli-darwin-arm64:
+	GOOS=darwin GOARCH=arm64 $(MAKE) release-vlogscli-goos-goarch
+
+release-vlogscli-freebsd-amd64:
+	GOOS=freebsd GOARCH=amd64 $(MAKE) release-vlogscli-goos-goarch
+
+release-vlogscli-openbsd-amd64:
+	GOOS=openbsd GOARCH=amd64 $(MAKE) release-vlogscli-goos-goarch
+
+release-vlogscli-windows-amd64:
+	GOARCH=amd64 $(MAKE) release-vlogscli-windows-goarch
+
+release-vlogscli-goos-goarch: vlogscli-$(GOOS)-$(GOARCH)-prod
+	cd bin && \
+		tar $(TAR_OWNERSHIP) --transform="flags=r;s|-$(GOOS)-$(GOARCH)||" -czf vlogscli-$(GOOS)-$(GOARCH)-$(PKG_TAG).tar.gz \
+			vlogscli-$(GOOS)-$(GOARCH)-prod \
+		&& sha256sum vlogscli-$(GOOS)-$(GOARCH)-$(PKG_TAG).tar.gz \
+			vlogscli-$(GOOS)-$(GOARCH)-prod \
+			| sed s/-$(GOOS)-$(GOARCH)-prod/-prod/ > vlogscli-$(GOOS)-$(GOARCH)-$(PKG_TAG)_checksums.txt
+	cd bin && rm -rf vlogscli-$(GOOS)-$(GOARCH)-prod
+
+release-vlogscli-windows-goarch: vlogscli-windows-$(GOARCH)-prod
+	cd bin && \
+		zip vlogscli-windows-$(GOARCH)-$(PKG_TAG).zip \
+			vlogscli-windows-$(GOARCH)-prod.exe \
+		&& sha256sum vlogscli-windows-$(GOARCH)-$(PKG_TAG).zip \
+			vlogscli-windows-$(GOARCH)-prod.exe \
+			> vlogscli-windows-$(GOARCH)-$(PKG_TAG)_checksums.txt
+	cd bin && rm -rf \
+		vlogscli-windows-$(GOARCH)-prod.exe
+
 release-vmutils: \
 	release-vmutils-linux-386 \
 	release-vmutils-linux-amd64 \
 	release-vmutils-linux-arm64 \
 	release-vmutils-linux-arm \
-	release-vmutils-linux-s390x \
 	release-vmutils-darwin-amd64 \
 	release-vmutils-darwin-arm64 \
 	release-vmutils-freebsd-amd64 \
@@ -346,9 +455,6 @@ release-vmutils-linux-arm64:
 release-vmutils-linux-arm:
 	GOOS=linux GOARCH=arm $(MAKE) release-vmutils-goos-goarch
 
-release-vmutils-linux-s390x:
-	GOOS=linux GOARCH=s390x $(MAKE) release-vmutils-goos-goarch
-
 release-vmutils-darwin-amd64:
 	GOOS=darwin GOARCH=amd64 $(MAKE) release-vmutils-goos-goarch
 
@@ -435,7 +541,7 @@ release-vmutils-windows-goarch: \
 		vmctl-windows-$(GOARCH)-prod.exe
 
 pprof-cpu:
-	go tool pprof -trim_path=github.com/VictoriaMetrics/VictoriaMetrics $(PPROF_FILE)
+	go tool pprof -trim_path=github.com/VictoriaMetrics/VictoriaMetrics@ $(PPROF_FILE)
 
 fmt:
 	gofmt -l -w -s ./lib
@@ -443,7 +549,7 @@ fmt:
 	gofmt -l -w -s ./apptest
 
 vet:
-	go vet -tags 'synctest' ./lib/...
+	GOEXPERIMENT=synctest go vet ./lib/...
 	go vet ./app/...
 	go vet ./apptest/...
 
@@ -452,82 +558,61 @@ check-all: fmt vet golangci-lint govulncheck
 clean-checkers: remove-golangci-lint remove-govulncheck
 
 test:
-	go test -tags 'synctest' ./lib/... ./app/...
+	GOEXPERIMENT=synctest go test ./lib/... ./app/...
 
 test-race:
-	go test -tags 'synctest' -race ./lib/... ./app/...
-
-test-386:
-	GOARCH=386 go test -tags 'synctest' ./lib/... ./app/...
+	GOEXPERIMENT=synctest go test -race ./lib/... ./app/...
 
 test-pure:
-	CGO_ENABLED=0 go test -tags 'synctest' ./lib/... ./app/...
+	GOEXPERIMENT=synctest CGO_ENABLED=0 go test ./lib/... ./app/...
 
 test-full:
-	go test -tags 'synctest' -coverprofile=coverage.txt -covermode=atomic ./lib/... ./app/...
+	GOEXPERIMENT=synctest go test -coverprofile=coverage.txt -covermode=atomic ./lib/... ./app/...
 
 test-full-386:
-	GOARCH=386 go test -tags 'synctest' -coverprofile=coverage.txt -covermode=atomic ./lib/... ./app/...
+	GOEXPERIMENT=synctest GOARCH=386 go test -coverprofile=coverage.txt -covermode=atomic ./lib/... ./app/...
 
-apptest:
-	$(MAKE) victoria-metrics-race vmagent-race vmalert-race vmauth-race vmctl-race vmbackup-race vmrestore-race
-	go test ./apptest/... -skip="^Test(Cluster|Legacy).*"
-
-apptest-legacy: victoria-metrics-race vmbackup-race vmrestore-race
-	OS=$$(uname | tr '[:upper:]' '[:lower:]'); \
-	ARCH=$$(uname -m | tr '[:upper:]' '[:lower:]' | sed 's/x86_64/amd64/'); \
-	VERSION=v1.132.0; \
-	VMSINGLE=victoria-metrics-$${OS}-$${ARCH}-$${VERSION}.tar.gz; \
-	VMCLUSTER=victoria-metrics-$${OS}-$${ARCH}-$${VERSION}-cluster.tar.gz; \
-	URL=https://github.com/VictoriaMetrics/VictoriaMetrics/releases/download/$${VERSION}; \
-	DIR=/tmp/$${VERSION}; \
-	test -d $${DIR} || (mkdir $${DIR} && \
-		curl --output-dir /tmp -LO $${URL}/$${VMSINGLE} && tar xzf /tmp/$${VMSINGLE} -C $${DIR} && \
-		curl --output-dir /tmp -LO $${URL}/$${VMCLUSTER} && tar xzf /tmp/$${VMCLUSTER} -C $${DIR} \
-	); \
-	VM_LEGACY_VMSINGLE_PATH=$${DIR}/victoria-metrics-prod \
-	VM_LEGACY_VMSTORAGE_PATH=$${DIR}/vmstorage-prod \
-	go test ./apptest/tests -run="^TestLegacySingle.*"
+integration-test: victoria-metrics vmagent vmalert vmauth vmctl vmbackup vmrestore
+	go test ./apptest/... -skip="^TestCluster.*"
 
 benchmark:
-	go test -run=NO_TESTS -bench=. ./lib/...
-	go test -run=NO_TESTS -bench=. ./app/...
+	GOEXPERIMENT=synctest go test -bench=. ./lib/...
+	go test -bench=. ./app/...
 
 benchmark-pure:
-	CGO_ENABLED=0 go test -run=NO_TESTS -bench=. ./lib/...
-	CGO_ENABLED=0 go test -run=NO_TESTS -bench=. ./app/...
+	GOEXPERIMENT=synctest CGO_ENABLED=0 go test -bench=. ./lib/...
+	CGO_ENABLED=0 go test -bench=. ./app/...
 
 vendor-update:
 	go get -u ./lib/...
 	go get -u ./app/...
-	go mod tidy -compat=1.26
+	go mod tidy -compat=1.24
 	go mod vendor
 
 app-local:
-	CGO_ENABLED=1 go build $(RACE) -ldflags "$(GO_BUILDINFO)" -tags "$(EXTRA_GO_BUILD_TAGS)" -o bin/$(APP_NAME)$(RACE) $(PKG_PREFIX)/app/$(APP_NAME)
+	CGO_ENABLED=1 go build $(RACE) -ldflags "$(GO_BUILDINFO)" -o bin/$(APP_NAME)$(RACE) $(PKG_PREFIX)/app/$(APP_NAME)
 
 app-local-pure:
-	CGO_ENABLED=0 go build $(RACE) -ldflags "$(GO_BUILDINFO)" -tags "$(EXTRA_GO_BUILD_TAGS)" -o bin/$(APP_NAME)-pure$(RACE) $(PKG_PREFIX)/app/$(APP_NAME)
+	CGO_ENABLED=0 go build $(RACE) -ldflags "$(GO_BUILDINFO)" -o bin/$(APP_NAME)-pure$(RACE) $(PKG_PREFIX)/app/$(APP_NAME)
 
 app-local-goos-goarch:
-	CGO_ENABLED=$(CGO_ENABLED) GOOS=$(GOOS) GOARCH=$(GOARCH) go build $(RACE) -ldflags "$(GO_BUILDINFO)" -tags "$(EXTRA_GO_BUILD_TAGS)" -o bin/$(APP_NAME)-$(GOOS)-$(GOARCH)$(RACE) $(PKG_PREFIX)/app/$(APP_NAME)
+	CGO_ENABLED=$(CGO_ENABLED) GOOS=$(GOOS) GOARCH=$(GOARCH) go build $(RACE) -ldflags "$(GO_BUILDINFO)" -o bin/$(APP_NAME)-$(GOOS)-$(GOARCH)$(RACE) $(PKG_PREFIX)/app/$(APP_NAME)
 
 app-local-windows-goarch:
-	CGO_ENABLED=0 GOOS=windows GOARCH=$(GOARCH) go build $(RACE) -ldflags "$(GO_BUILDINFO)" -tags "$(EXTRA_GO_BUILD_TAGS)" -o bin/$(APP_NAME)-windows-$(GOARCH)$(RACE).exe $(PKG_PREFIX)/app/$(APP_NAME)
+	CGO_ENABLED=0 GOOS=windows GOARCH=$(GOARCH) go build $(RACE) -ldflags "$(GO_BUILDINFO)" -o bin/$(APP_NAME)-windows-$(GOARCH)$(RACE).exe $(PKG_PREFIX)/app/$(APP_NAME)
 
 quicktemplate-gen: install-qtc
-	qtc -dir=lib
-	qtc -dir=app
+	qtc
 
 install-qtc:
 	which qtc || go install github.com/valyala/quicktemplate/qtc@latest
 
 
 golangci-lint: install-golangci-lint
-	golangci-lint run --build-tags 'synctest'
+	GOEXPERIMENT=synctest golangci-lint run
 
 install-golangci-lint:
-	which golangci-lint && (golangci-lint --version | grep -q $(GOLANGCI_LINT_VERSION)) || curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(shell go env GOPATH)/bin v$(GOLANGCI_LINT_VERSION)
+	which golangci-lint || curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(shell go env GOPATH)/bin v1.64.7
 
 remove-golangci-lint:
 	rm -rf `which golangci-lint`

README.md

@@ -1,11 +1,12 @@
 # VictoriaMetrics
 
 [![Latest Release](https://img.shields.io/github/v/release/VictoriaMetrics/VictoriaMetrics?sort=semver&label=&filter=!*-victorialogs&logo=github&labelColor=gray&color=gray&link=https%3A%2F%2Fgithub.com%2FVictoriaMetrics%2FVictoriaMetrics%2Freleases%2Flatest)](https://github.com/VictoriaMetrics/VictoriaMetrics/releases)
-[![Docker Pulls](https://img.shields.io/docker/pulls/victoriametrics/victoria-metrics?label=&logo=docker&logoColor=white&labelColor=2496ED&color=2496ED&link=https%3A%2F%2Fhub.docker.com%2Fr%2Fvictoriametrics%2Fvictoria-metrics)](https://hub.docker.com/u/victoriametrics)
+![Docker Pulls](https://img.shields.io/docker/pulls/victoriametrics/victoria-metrics?label=&logo=docker&logoColor=white&labelColor=2496ED&color=2496ED&link=https%3A%2F%2Fhub.docker.com%2Fr%2Fvictoriametrics%2Fvictoria-metrics)
 [![Go Report](https://goreportcard.com/badge/github.com/VictoriaMetrics/VictoriaMetrics?link=https%3A%2F%2Fgoreportcard.com%2Freport%2Fgithub.com%2FVictoriaMetrics%2FVictoriaMetrics)](https://goreportcard.com/report/github.com/VictoriaMetrics/VictoriaMetrics)
-[![Build Status](https://github.com/VictoriaMetrics/VictoriaMetrics/actions/workflows/build.yml/badge.svg?branch=master&link=https%3A%2F%2Fgithub.com%2FVictoriaMetrics%2FVictoriaMetrics%2Factions)](https://github.com/VictoriaMetrics/VictoriaMetrics/actions/workflows/build.yml)
+[![Build Status](https://github.com/VictoriaMetrics/VictoriaMetrics/actions/workflows/main.yml/badge.svg?branch=master&link=https%3A%2F%2Fgithub.com%2FVictoriaMetrics%2FVictoriaMetrics%2Factions)](https://github.com/VictoriaMetrics/VictoriaMetrics/actions/workflows/main.yml)
+[![codecov](https://codecov.io/gh/VictoriaMetrics/VictoriaMetrics/branch/master/graph/badge.svg?link=https%3A%2F%2Fcodecov.io%2Fgh%2FVictoriaMetrics%2FVictoriaMetrics)](https://app.codecov.io/gh/VictoriaMetrics/VictoriaMetrics)
 [![License](https://img.shields.io/github/license/VictoriaMetrics/VictoriaMetrics?labelColor=green&label=&link=https%3A%2F%2Fgithub.com%2FVictoriaMetrics%2FVictoriaMetrics%2Fblob%2Fmaster%2FLICENSE)](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/LICENSE)
-[![Join Slack](https://img.shields.io/badge/Join%20Slack-4A154B?logo=slack)](https://slack.victoriametrics.com)
+![Slack](https://img.shields.io/badge/Join-4A154B?logo=slack&link=https%3A%2F%2Fslack.victoriametrics.com)
 [![X](https://img.shields.io/twitter/follow/VictoriaMetrics?style=flat&label=Follow&color=black&logo=x&labelColor=black&link=https%3A%2F%2Fx.com%2FVictoriaMetrics)](https://x.com/VictoriaMetrics/)
 [![Reddit](https://img.shields.io/reddit/subreddit-subscribers/VictoriaMetrics?style=flat&label=Join&labelColor=red&logoColor=white&logo=reddit&link=https%3A%2F%2Fwww.reddit.com%2Fr%2FVictoriaMetrics)](https://www.reddit.com/r/VictoriaMetrics/)
 
@@ -15,21 +16,16 @@
   <img src="docs/victoriametrics/logo.webp" width="300" alt="VictoriaMetrics logo">
 </picture>
 
-VictoriaMetrics is a fast, cost-effective, and scalable solution for monitoring and managing time series data. It delivers high performance and reliability, making it an ideal choice for businesses of all sizes.
+VictoriaMetrics is a fast, cost-saving, and scalable solution for monitoring and managing time series data. It delivers high performance and reliability, making it an ideal choice for businesses of all sizes.
 
 Here are some resources and information about VictoriaMetrics:
 
-- **Case studies**: [Grammarly, Roblox, Wix, Spotify,...](https://docs.victoriametrics.com/victoriametrics/casestudies/).
-- **Available**: [Binary releases](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest), Docker images on [Docker Hub](https://hub.docker.com/r/victoriametrics/victoria-metrics/) and [Quay](https://quay.io/repository/victoriametrics/victoria-metrics), [Source code](https://github.com/VictoriaMetrics/VictoriaMetrics).
-- **Deployment types**: [Single-node version](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/) and [Cluster version](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/) under [Apache License 2.0](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/LICENSE).
-- **Getting started:** Read [key concepts](https://docs.victoriametrics.com/victoriametrics/keyconcepts/) and follow the
-  [quick start guide](https://docs.victoriametrics.com/victoriametrics/quick-start/).
-- **Community**: [Slack](https://slack.victoriametrics.com/) (join via [Slack Inviter](https://slack.victoriametrics.com/)), [X (Twitter)](https://x.com/VictoriaMetrics), [YouTube](https://www.youtube.com/@VictoriaMetrics). See full list [here](https://docs.victoriametrics.com/victoriametrics/#community-and-contributions).
-- **Changelog**: Project evolves fast - check the [CHANGELOG](https://docs.victoriametrics.com/victoriametrics/changelog/), and [How to upgrade](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-upgrade-victoriametrics).
-- **Enterprise support:** [Contact us](mailto:info@victoriametrics.com) for commercial support with additional [enterprise features](https://docs.victoriametrics.com/victoriametrics/enterprise/).
-- **Enterprise releases:** Enterprise and [long-term support releases (LTS)](https://docs.victoriametrics.com/victoriametrics/lts-releases/) are publicly available and can be evaluated for free
-  using a [free trial license](https://victoriametrics.com/products/enterprise/trial/).
-- **Security:** we achieved [security certifications](https://victoriametrics.com/security/) for Database Software Development and Software-Based Monitoring Services.
+- Documentation: [docs.victoriametrics.com](https://docs.victoriametrics.com)
+- Case studies: [Grammarly, Roblox, Wix,...](https://docs.victoriametrics.com/victoriametrics/casestudies/).
+- Available: [Binary releases](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest), docker images [Docker Hub](https://hub.docker.com/r/victoriametrics/victoria-metrics/) and [Quay](https://quay.io/repository/victoriametrics/victoria-metrics), [Source code](https://github.com/VictoriaMetrics/VictoriaMetrics)
+- Deployment types: [Single-node version](https://docs.victoriametrics.com/), [Cluster version](https://docs.victoriametrics.com/victoriametrics/cluster-victoriametrics/), and [Enterprise version](https://docs.victoriametrics.com/victoriametrics/enterprise/)
+- Changelog: [CHANGELOG](https://docs.victoriametrics.com/victoriametrics/changelog/), and [How to upgrade](https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#how-to-upgrade-victoriametrics)
+- Community: [Slack](https://slack.victoriametrics.com/), [X (Twitter)](https://x.com/VictoriaMetrics), [LinkedIn](https://www.linkedin.com/company/victoriametrics/), [YouTube](https://www.youtube.com/@VictoriaMetrics)
 
 Yes, we open-source both the single-node VictoriaMetrics and the cluster version.
 

SECURITY.md

@@ -1,4 +1,18 @@
 # Security Policy
 
-You can find out about our security policy and VictoriaMetrics version support on the [security page](https://docs.victoriametrics.com/victoriametrics/#security) in the documentation.
+## Supported Versions
 
+The following versions of VictoriaMetrics receive regular security fixes:
+
+| Version | Supported          |
+|---------|--------------------|
+| [latest release](https://docs.victoriametrics.com/victoriametrics/changelog/) | :white_check_mark: |
+| v1.102.x [LTS line](https://docs.victoriametrics.com/victoriametrics/lts-releases/) | :white_check_mark: |
+| v1.110.x [LTS line](https://docs.victoriametrics.com/victoriametrics/lts-releases/) | :white_check_mark: |
+| other releases  | :x:                |
+
+See [this page](https://victoriametrics.com/security/) for more details.
+
+## Reporting a Vulnerability
+
+Please report any security issues to <security@victoriametrics.com>

app/victoria-metrics/Makefile

@@ -27,9 +27,6 @@ victoria-metrics-linux-ppc64le-prod:
 victoria-metrics-linux-386-prod:
 	APP_NAME=victoria-metrics $(MAKE) app-via-docker-linux-386
 
-victoria-metrics-linux-s390x-prod:
-	APP_NAME=victoria-metrics $(MAKE) app-via-docker-linux-s390x
-
 victoria-metrics-darwin-amd64-prod:
 	APP_NAME=victoria-metrics $(MAKE) app-via-docker-darwin-amd64
 

app/victoria-metrics/main.go

@@ -17,6 +17,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/cgroup"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/envflag"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/procutil"
@@ -118,12 +119,14 @@ func main() {
 		logger.Fatalf("cannot stop the webservice: %s", err)
 	}
 	logger.Infof("successfully shut down the webservice in %.3f seconds", time.Since(startTime).Seconds())
-	vminsertcommon.StopIngestionRateLimiter()
 	vminsert.Stop()
+	vminsertcommon.StopIngestionRateLimiter()
 
 	vmstorage.Stop()
 	vmselect.Stop()
 
+	fs.MustStopDirRemover()
+
 	logger.Infof("the VictoriaMetrics has been stopped in %.3f seconds", time.Since(startTime).Seconds())
 }
 
@@ -134,7 +137,6 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
 		}
 		w.Header().Add("Content-Type", "text/html; charset=utf-8")
 		fmt.Fprintf(w, "<h2>Single-node VictoriaMetrics</h2></br>")
-		fmt.Fprintf(w, "Version %s<br>", buildinfo.Version)
 		fmt.Fprintf(w, "See docs at <a href='https://docs.victoriametrics.com/'>https://docs.victoriametrics.com/</a></br>")
 		fmt.Fprintf(w, "Useful endpoints:</br>")
 		httpserver.WriteAPIHelp(w, [][2]string{
@@ -170,7 +172,7 @@ func usage() {
 	const s = `
 victoria-metrics is a time series database and monitoring solution.
 
-See the docs at https://docs.victoriametrics.com/victoriametrics/
+See the docs at https://docs.victoriametrics.com/
 `
 	flagutil.Usage(s)
 }

app/victoria-metrics/self_scraper.go

@@ -10,11 +10,9 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/decimal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prommetadata"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage/metricsmetadata"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/timeserieslimits"
 )
 
@@ -29,9 +27,11 @@ var selfScraperWG sync.WaitGroup
 
 func startSelfScraper() {
 	selfScraperStopCh = make(chan struct{})
-	selfScraperWG.Go(func() {
+	selfScraperWG.Add(1)
+	go func() {
+		defer selfScraperWG.Done()
 		selfScraper(*selfScrapeInterval)
-	})
+	}()
 }
 
 func stopSelfScraper() {
@@ -48,9 +48,8 @@ func selfScraper(scrapeInterval time.Duration) {
 
 	var bb bytesutil.ByteBuffer
 	var rows prometheus.Rows
-	var metadataRows prometheus.MetadataRows
 	var mrs []storage.MetricRow
-	var labels []prompb.Label
+	var labels []prompbmarshal.Label
 	t := time.NewTicker(scrapeInterval)
 	f := func(currentTime time.Time, sendStaleMarkers bool) {
 		currentTimestamp := currentTime.UnixNano() / 1e6
@@ -58,12 +57,7 @@ func selfScraper(scrapeInterval time.Duration) {
 		appmetrics.WritePrometheusMetrics(&bb)
 		s := bytesutil.ToUnsafeString(bb.B)
 		rows.Reset()
-		// Parse metrics and optionally metadata when enabled
-		if prommetadata.IsEnabled() {
-			rows, metadataRows = prometheus.UnmarshalWithMetadata(rows, metadataRows, s, nil)
-		} else {
-			rows.UnmarshalWithErrLogger(s, nil)
-		}
+		rows.Unmarshal(s)
 		mrs = mrs[:0]
 		for i := range rows.Rows {
 			r := &rows.Rows[i]
@@ -96,19 +90,6 @@ func selfScraper(scrapeInterval time.Duration) {
 		if err := vmstorage.AddRows(mrs); err != nil {
 			logger.Errorf("cannot store self-scraped metrics: %s", err)
 		}
-		if len(metadataRows.Rows) > 0 {
-			mms := make([]metricsmetadata.Row, 0, len(metadataRows.Rows))
-			for _, mm := range metadataRows.Rows {
-				mms = append(mms, metricsmetadata.Row{
-					MetricFamilyName: bytesutil.ToUnsafeBytes(mm.Metric),
-					Help:             bytesutil.ToUnsafeBytes(mm.Help),
-					Type:             mm.Type,
-				})
-			}
-			if err := vmstorage.AddMetadataRows(mms); err != nil {
-				logger.Errorf("cannot store self-scraped metrics metadata: %s", err)
-			}
-		}
 	}
 	for {
 		select {
@@ -123,11 +104,11 @@ func selfScraper(scrapeInterval time.Duration) {
 	}
 }
 
-func addLabel(dst []prompb.Label, key, value string) []prompb.Label {
+func addLabel(dst []prompbmarshal.Label, key, value string) []prompbmarshal.Label {
 	if len(dst) < cap(dst) {
 		dst = dst[:len(dst)+1]
 	} else {
-		dst = append(dst, prompb.Label{})
+		dst = append(dst, prompbmarshal.Label{})
 	}
 	lb := &dst[len(dst)-1]
 	lb.Name = key

app/victoria-metrics/test/parser.go

@@ -33,13 +33,13 @@ func PopulateTimeTpl(b []byte, tGlobal time.Time) []byte {
 		}
 		switch strings.TrimSpace(parts[0]) {
 		case `TIME_S`:
-			return fmt.Appendf(nil, "%d", t.Unix())
+			return []byte(fmt.Sprintf("%d", t.Unix()))
 		case `TIME_MSZ`:
-			return fmt.Appendf(nil, "%d", t.Unix()*1e3)
+			return []byte(fmt.Sprintf("%d", t.Unix()*1e3))
 		case `TIME_MS`:
-			return fmt.Appendf(nil, "%d", timeToMillis(t))
+			return []byte(fmt.Sprintf("%d", timeToMillis(t)))
 		case `TIME_NS`:
-			return fmt.Appendf(nil, "%d", t.UnixNano())
+			return []byte(fmt.Sprintf("%d", t.UnixNano()))
 		default:
 			log.Fatalf("unknown time pattern %s in %s", parts[0], repl)
 		}

app/vmagent/Makefile

@@ -27,9 +27,6 @@ vmagent-linux-ppc64le-prod:
 vmagent-linux-386-prod:
 	APP_NAME=vmagent $(MAKE) app-via-docker-linux-386
 
-vmagent-linux-s390x-prod:
-	APP_NAME=vmagent $(MAKE) app-via-docker-linux-s390x
-
 vmagent-darwin-amd64-prod:
 	APP_NAME=vmagent $(MAKE) app-via-docker-darwin-amd64
 

app/vmagent/common/push_ctx.go

@@ -3,7 +3,7 @@ package common
 import (
 	"sync"
 
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
 )
 
@@ -12,13 +12,13 @@ type PushCtx struct {
 	// WriteRequest contains the WriteRequest, which must be pushed later to remote storage.
 	//
 	// The actual labels and samples for the time series are stored in Labels and Samples fields.
-	WriteRequest prompb.WriteRequest
+	WriteRequest prompbmarshal.WriteRequest
 
 	// Labels contains flat list of all the labels used in WriteRequest.
-	Labels []prompb.Label
+	Labels []prompbmarshal.Label
 
 	// Samples contains flat list of all the samples used in WriteRequest.
-	Samples []prompb.Sample
+	Samples []prompbmarshal.Sample
 }
 
 // Reset resets ctx.

app/vmagent/csvimport/request_handler.go

@@ -6,7 +6,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/csvimport"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/csvimport/stream"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
@@ -31,7 +31,7 @@ func InsertHandler(at *auth.Token, req *http.Request) error {
 	})
 }
 
-func insertRows(at *auth.Token, rows []csvimport.Row, extraLabels []prompb.Label) error {
+func insertRows(at *auth.Token, rows []csvimport.Row, extraLabels []prompbmarshal.Label) error {
 	ctx := common.GetPushCtx()
 	defer common.PutPushCtx(ctx)
 
@@ -41,23 +41,23 @@ func insertRows(at *auth.Token, rows []csvimport.Row, extraLabels []prompb.Label
 	for i := range rows {
 		r := &rows[i]
 		labelsLen := len(labels)
-		labels = append(labels, prompb.Label{
+		labels = append(labels, prompbmarshal.Label{
 			Name:  "__name__",
 			Value: r.Metric,
 		})
 		for j := range r.Tags {
 			tag := &r.Tags[j]
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  tag.Key,
 				Value: tag.Value,
 			})
 		}
 		labels = append(labels, extraLabels...)
-		samples = append(samples, prompb.Sample{
+		samples = append(samples, prompbmarshal.Sample{
 			Value:     r.Value,
 			Timestamp: r.Timestamp,
 		})
-		tssDst = append(tssDst, prompb.TimeSeries{
+		tssDst = append(tssDst, prompbmarshal.TimeSeries{
 			Labels:  labels[labelsLen:],
 			Samples: samples[len(samples)-1:],
 		})

app/vmagent/datadogsketches/request_handler.go

@@ -6,7 +6,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogsketches"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogsketches/stream"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogutil"
@@ -33,7 +33,7 @@ func InsertHandlerForHTTP(at *auth.Token, req *http.Request) error {
 	})
 }
 
-func insertRows(at *auth.Token, sketches []*datadogsketches.Sketch, extraLabels []prompb.Label) error {
+func insertRows(at *auth.Token, sketches []*datadogsketches.Sketch, extraLabels []prompbmarshal.Label) error {
 	ctx := common.GetPushCtx()
 	defer common.PutPushCtx(ctx)
 
@@ -45,24 +45,22 @@ func insertRows(at *auth.Token, sketches []*datadogsketches.Sketch, extraLabels
 		ms := sketch.ToSummary()
 		for _, m := range ms {
 			labelsLen := len(labels)
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  "__name__",
 				Value: m.Name,
 			})
-			// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10557
-			labels = append(labels, prompb.Label{
-				Name:  "host",
-				Value: sketch.Host,
-			})
 			for _, label := range m.Labels {
-				labels = append(labels, prompb.Label{
+				labels = append(labels, prompbmarshal.Label{
 					Name:  label.Name,
 					Value: label.Value,
 				})
 			}
 			for _, tag := range sketch.Tags {
 				name, value := datadogutil.SplitTag(tag)
-				labels = append(labels, prompb.Label{
+				if name == "host" {
+					name = "exported_host"
+				}
+				labels = append(labels, prompbmarshal.Label{
 					Name:  name,
 					Value: value,
 				})
@@ -70,13 +68,13 @@ func insertRows(at *auth.Token, sketches []*datadogsketches.Sketch, extraLabels
 			labels = append(labels, extraLabels...)
 			samplesLen := len(samples)
 			for _, p := range m.Points {
-				samples = append(samples, prompb.Sample{
+				samples = append(samples, prompbmarshal.Sample{
 					Timestamp: p.Timestamp,
 					Value:     p.Value,
 				})
 			}
 			rowsTotal += len(m.Points)
-			tssDst = append(tssDst, prompb.TimeSeries{
+			tssDst = append(tssDst, prompbmarshal.TimeSeries{
 				Labels:  labels[labelsLen:],
 				Samples: samples[samplesLen:],
 			})

app/vmagent/datadogv1/request_handler.go

@@ -6,7 +6,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogv1"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogv1/stream"
@@ -33,7 +33,7 @@ func InsertHandlerForHTTP(at *auth.Token, req *http.Request) error {
 	})
 }
 
-func insertRows(at *auth.Token, series []datadogv1.Series, extraLabels []prompb.Label) error {
+func insertRows(at *auth.Token, series []datadogv1.Series, extraLabels []prompbmarshal.Label) error {
 	ctx := common.GetPushCtx()
 	defer common.PutPushCtx(ctx)
 
@@ -45,18 +45,18 @@ func insertRows(at *auth.Token, series []datadogv1.Series, extraLabels []prompb.
 		ss := &series[i]
 		rowsTotal += len(ss.Points)
 		labelsLen := len(labels)
-		labels = append(labels, prompb.Label{
+		labels = append(labels, prompbmarshal.Label{
 			Name:  "__name__",
 			Value: ss.Metric,
 		})
 		if ss.Host != "" {
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  "host",
 				Value: ss.Host,
 			})
 		}
 		if ss.Device != "" {
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  "device",
 				Value: ss.Device,
 			})
@@ -66,7 +66,7 @@ func insertRows(at *auth.Token, series []datadogv1.Series, extraLabels []prompb.
 			if name == "host" {
 				name = "exported_host"
 			}
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  name,
 				Value: value,
 			})
@@ -74,12 +74,12 @@ func insertRows(at *auth.Token, series []datadogv1.Series, extraLabels []prompb.
 		labels = append(labels, extraLabels...)
 		samplesLen := len(samples)
 		for _, pt := range ss.Points {
-			samples = append(samples, prompb.Sample{
+			samples = append(samples, prompbmarshal.Sample{
 				Timestamp: pt.Timestamp(),
 				Value:     pt.Value(),
 			})
 		}
-		tssDst = append(tssDst, prompb.TimeSeries{
+		tssDst = append(tssDst, prompbmarshal.TimeSeries{
 			Labels:  labels[labelsLen:],
 			Samples: samples[samplesLen:],
 		})

app/vmagent/datadogv2/request_handler.go

@@ -6,7 +6,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogv2"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/datadogv2/stream"
@@ -36,7 +36,7 @@ func InsertHandlerForHTTP(at *auth.Token, req *http.Request) error {
 	})
 }
 
-func insertRows(at *auth.Token, series []datadogv2.Series, extraLabels []prompb.Label) error {
+func insertRows(at *auth.Token, series []datadogv2.Series, extraLabels []prompbmarshal.Label) error {
 	ctx := common.GetPushCtx()
 	defer common.PutPushCtx(ctx)
 
@@ -48,18 +48,18 @@ func insertRows(at *auth.Token, series []datadogv2.Series, extraLabels []prompb.
 		ss := &series[i]
 		rowsTotal += len(ss.Points)
 		labelsLen := len(labels)
-		labels = append(labels, prompb.Label{
+		labels = append(labels, prompbmarshal.Label{
 			Name:  "__name__",
 			Value: ss.Metric,
 		})
 		for _, rs := range ss.Resources {
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  rs.Type,
 				Value: rs.Name,
 			})
 		}
 		if ss.SourceTypeName != "" {
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  "source_type_name",
 				Value: ss.SourceTypeName,
 			})
@@ -69,7 +69,7 @@ func insertRows(at *auth.Token, series []datadogv2.Series, extraLabels []prompb.
 			if name == "host" {
 				name = "exported_host"
 			}
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  name,
 				Value: value,
 			})
@@ -77,12 +77,12 @@ func insertRows(at *auth.Token, series []datadogv2.Series, extraLabels []prompb.
 		labels = append(labels, extraLabels...)
 		samplesLen := len(samples)
 		for _, pt := range ss.Points {
-			samples = append(samples, prompb.Sample{
+			samples = append(samples, prompbmarshal.Sample{
 				Timestamp: pt.Timestamp * 1000,
 				Value:     pt.Value,
 			})
 		}
-		tssDst = append(tssDst, prompb.TimeSeries{
+		tssDst = append(tssDst, prompbmarshal.TimeSeries{
 			Labels:  labels[labelsLen:],
 			Samples: samples[samplesLen:],
 		})

app/vmagent/graphite/request_handler.go

@@ -6,7 +6,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/graphite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/graphite/stream"
 	"github.com/VictoriaMetrics/metrics"
@@ -36,22 +36,22 @@ func insertRows(at *auth.Token, rows []parser.Row) error {
 	for i := range rows {
 		r := &rows[i]
 		labelsLen := len(labels)
-		labels = append(labels, prompb.Label{
+		labels = append(labels, prompbmarshal.Label{
 			Name:  "__name__",
 			Value: r.Metric,
 		})
 		for j := range r.Tags {
 			tag := &r.Tags[j]
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  tag.Key,
 				Value: tag.Value,
 			})
 		}
-		samples = append(samples, prompb.Sample{
+		samples = append(samples, prompbmarshal.Sample{
 			Value:     r.Value,
 			Timestamp: r.Timestamp,
 		})
-		tssDst = append(tssDst, prompb.TimeSeries{
+		tssDst = append(tssDst, prompbmarshal.TimeSeries{
 			Labels:  labels[labelsLen:],
 			Samples: samples[len(samples)-1:],
 		})

app/vmagent/influx/request_handler.go

@@ -10,7 +10,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/influx"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/influx/stream"
@@ -60,7 +60,7 @@ func InsertHandlerForHTTP(at *auth.Token, req *http.Request) error {
 	})
 }
 
-func insertRows(at *auth.Token, db string, rows []influx.Row, extraLabels []prompb.Label) error {
+func insertRows(at *auth.Token, db string, rows []influx.Row, extraLabels []prompbmarshal.Label) error {
 	ctx := getPushCtx()
 	defer putPushCtx(ctx)
 
@@ -80,13 +80,13 @@ func insertRows(at *auth.Token, db string, rows []influx.Row, extraLabels []prom
 			if tag.Key == *dbLabel {
 				hasDBKey = true
 			}
-			commonLabels = append(commonLabels, prompb.Label{
+			commonLabels = append(commonLabels, prompbmarshal.Label{
 				Name:  tag.Key,
 				Value: tag.Value,
 			})
 		}
 		if len(db) > 0 && !hasDBKey {
-			commonLabels = append(commonLabels, prompb.Label{
+			commonLabels = append(commonLabels, prompbmarshal.Label{
 				Name:  *dbLabel,
 				Value: db,
 			})
@@ -110,16 +110,16 @@ func insertRows(at *auth.Token, db string, rows []influx.Row, extraLabels []prom
 			}
 			metricGroup := bytesutil.ToUnsafeString(buf[bufLen:])
 			labelsLen := len(labels)
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  "__name__",
 				Value: metricGroup,
 			})
 			labels = append(labels, commonLabels...)
-			samples = append(samples, prompb.Sample{
+			samples = append(samples, prompbmarshal.Sample{
 				Timestamp: r.Timestamp,
 				Value:     f.Value,
 			})
-			tssDst = append(tssDst, prompb.TimeSeries{
+			tssDst = append(tssDst, prompbmarshal.TimeSeries{
 				Labels:  labels[labelsLen:],
 				Samples: samples[len(samples)-1:],
 			})
@@ -144,7 +144,7 @@ func insertRows(at *auth.Token, db string, rows []influx.Row, extraLabels []prom
 
 type pushCtx struct {
 	ctx            common.PushCtx
-	commonLabels   []prompb.Label
+	commonLabels   []prompbmarshal.Label
 	metricGroupBuf []byte
 	buf            []byte
 }

app/vmagent/main.go

@@ -27,7 +27,6 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/promremotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/vmimport"
-	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/zabbixconnector"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/buildinfo"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
@@ -75,7 +74,7 @@ var (
 		"See also -opentsdbHTTPListenAddr.useProxyProtocol")
 	opentsdbHTTPUseProxyProtocol = flag.Bool("opentsdbHTTPListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted "+
 		"at -opentsdbHTTPListenAddr . See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt")
-	configAuthKey = flagutil.NewPassword("configAuthKey", "Authorization key for accessing /config and /remotewrite-.*-config pages. It must be passed via authKey query arg. It overrides -httpAuth.*")
+	configAuthKey = flagutil.NewPassword("configAuthKey", "Authorization key for accessing /config page. It must be passed via authKey query arg. It overrides -httpAuth.*")
 	reloadAuthKey = flagutil.NewPassword("reloadAuthKey", "Auth key for /-/reload http endpoint. It must be passed via authKey query arg. It overrides -httpAuth.*")
 	dryRun        = flag.Bool("dryRun", false, "Whether to check config files without running vmagent. The following files are checked: "+
 		"-promscrape.config, -remoteWrite.relabelConfig, -remoteWrite.urlRelabelConfig, -remoteWrite.streamAggr.config . "+
@@ -83,9 +82,6 @@ var (
 	maxLabelsPerTimeseries = flag.Int("maxLabelsPerTimeseries", 0, "The maximum number of labels per time series to be accepted. Series with superfluous labels are ignored. In this case the vm_rows_ignored_total{reason=\"too_many_labels\"} metric at /metrics page is incremented")
 	maxLabelNameLen        = flag.Int("maxLabelNameLen", 0, "The maximum length of label names in the accepted time series. Series with longer label name are ignored. In this case the vm_rows_ignored_total{reason=\"too_long_label_name\"} metric at /metrics page is incremented")
 	maxLabelValueLen       = flag.Int("maxLabelValueLen", 0, "The maximum length of label values in the accepted time series. Series with longer label value are ignored. In this case the vm_rows_ignored_total{reason=\"too_long_label_value\"} metric at /metrics page is incremented")
-
-	enableMultitenancyViaHeaders = flag.Bool("enableMultitenancyViaHeaders", false, "Enables multitenancy via HTTP headers. "+
-		"See https://docs.victoriametrics.com/victoriametrics/vmagent/#multitenancy")
 )
 
 var (
@@ -210,7 +206,7 @@ func main() {
 func getOpenTSDBHTTPInsertHandler() func(req *http.Request) error {
 	if !remotewrite.MultitenancyEnabled() {
 		return func(req *http.Request) error {
-			path := strings.ReplaceAll(req.URL.Path, "//", "/")
+			path := strings.Replace(req.URL.Path, "//", "/", -1)
 			if path != "/api/put" {
 				return fmt.Errorf("unsupported path requested: %q; expecting '/api/put'", path)
 			}
@@ -218,8 +214,8 @@ func getOpenTSDBHTTPInsertHandler() func(req *http.Request) error {
 		}
 	}
 	return func(req *http.Request) error {
-		path := strings.ReplaceAll(req.URL.Path, "//", "/")
-		at, err := getAuthTokenFromPath(path, req.Header)
+		path := strings.Replace(req.URL.Path, "//", "/", -1)
+		at, err := getAuthTokenFromPath(path)
 		if err != nil {
 			return fmt.Errorf("cannot obtain auth token from path %q: %w", path, err)
 		}
@@ -227,15 +223,8 @@ func getOpenTSDBHTTPInsertHandler() func(req *http.Request) error {
 	}
 }
 
-func parsePath(path string, header http.Header) (*httpserver.Path, error) {
-	if *enableMultitenancyViaHeaders {
-		return httpserver.ParsePathAndHeaders(path, header)
-	}
-	return httpserver.ParsePath(path)
-}
-
-func getAuthTokenFromPath(path string, header http.Header) (*auth.Token, error) {
-	p, err := parsePath(path, header)
+func getAuthTokenFromPath(path string) (*auth.Token, error) {
+	p, err := httpserver.ParsePath(path)
 	if err != nil {
 		return nil, fmt.Errorf("cannot parse multitenant path: %w", err)
 	}
@@ -255,7 +244,6 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
 		}
 		w.Header().Add("Content-Type", "text/html; charset=utf-8")
 		fmt.Fprintf(w, "<h2>vmagent</h2>")
-		fmt.Fprintf(w, "Version %s<br>", buildinfo.Version)
 		fmt.Fprintf(w, "See docs at <a href='https://docs.victoriametrics.com/victoriametrics/vmagent/'>https://docs.victoriametrics.com/victoriametrics/vmagent/</a></br>")
 		fmt.Fprintf(w, "Useful endpoints:</br>")
 		httpserver.WriteAPIHelp(w, [][2]string{
@@ -264,8 +252,6 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
 			{"metric-relabel-debug", "debug metric relabeling"},
 			{"api/v1/targets", "advanced information about discovered targets in JSON format"},
 			{"config", "-promscrape.config contents"},
-			{"remotewrite-relabel-config", "-remoteWrite.relabelConfig contents"},
-			{"remotewrite-url-relabel-config", "-remoteWrite.urlRelabelConfig contents"},
 			{"metrics", "available service metrics"},
 			{"flags", "command-line flags"},
 			{"-/reload", "reload configuration"},
@@ -273,7 +259,7 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
 		return true
 	}
 
-	path := strings.ReplaceAll(r.URL.Path, "//", "/")
+	path := strings.Replace(r.URL.Path, "//", "/", -1)
 	if strings.HasPrefix(path, "/prometheus/api/v1/import/prometheus") || strings.HasPrefix(path, "/api/v1/import/prometheus") {
 		prometheusimportRequests.Inc()
 		if err := prometheusimport.InsertHandler(nil, r); err != nil {
@@ -362,17 +348,6 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
 		}
 		firehose.WriteSuccessResponse(w, r)
 		return true
-	case "/zabbixconnector/api/v1/history":
-		zabbixconnectorHistoryRequests.Inc()
-		if err := zabbixconnector.InsertHandlerForHTTP(nil, r); err != nil {
-			zabbixconnectorHistoryErrors.Inc()
-			w.Header().Set("Content-Type", "application/json")
-			w.WriteHeader(http.StatusBadRequest)
-			fmt.Fprintf(w, `{"error":%q}`, err.Error())
-			return true
-		}
-		w.WriteHeader(http.StatusOK)
-		return true
 	case "/newrelic":
 		newrelicCheckRequest.Inc()
 		w.Header().Set("Content-Type", "application/json")
@@ -502,42 +477,6 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
 		promscrape.WriteConfigData(&bb)
 		fmt.Fprintf(w, `{"status":"success","data":{"yaml":%s}}`, stringsutil.JSONString(string(bb.B)))
 		return true
-	case "/remotewrite-relabel-config":
-		if !httpserver.CheckAuthFlag(w, r, configAuthKey) {
-			return true
-		}
-		remoteWriteRelabelConfigRequests.Inc()
-		w.Header().Set("Content-Type", "text/plain; charset=utf-8")
-		remotewrite.WriteRelabelConfigData(w)
-		return true
-	case "/api/v1/status/remotewrite-relabel-config":
-		if !httpserver.CheckAuthFlag(w, r, configAuthKey) {
-			return true
-		}
-		remoteWriteStatusRelabelConfigRequests.Inc()
-		w.Header().Set("Content-Type", "application/json")
-		var bb bytesutil.ByteBuffer
-		remotewrite.WriteRelabelConfigData(&bb)
-		fmt.Fprintf(w, `{"status":"success","data":{"yaml":%s}}`, stringsutil.JSONString(string(bb.B)))
-		return true
-	case "/remotewrite-url-relabel-config":
-		if !httpserver.CheckAuthFlag(w, r, configAuthKey) {
-			return true
-		}
-		remoteWriteURLRelabelConfigRequests.Inc()
-		w.Header().Set("Content-Type", "text/plain; charset=utf-8")
-		remotewrite.WriteURLRelabelConfigData(w)
-		return true
-	case "/api/v1/status/remotewrite-url-relabel-config":
-		if !httpserver.CheckAuthFlag(w, r, configAuthKey) {
-			return true
-		}
-		remoteWriteStatusURLRelabelConfigRequests.Inc()
-		w.Header().Set("Content-Type", "application/json")
-		var bb bytesutil.ByteBuffer
-		remotewrite.WriteURLRelabelConfigData(&bb)
-		fmt.Fprintf(w, `{"status":"success","data":{"yaml":%s}}`, stringsutil.JSONString(string(bb.B)))
-		return true
 	case "/prometheus/-/reload", "/-/reload":
 		if !httpserver.CheckAuthFlag(w, r, reloadAuthKey) {
 			return true
@@ -569,15 +508,14 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
 }
 
 func processMultitenantRequest(w http.ResponseWriter, r *http.Request, path string) bool {
-	p, err := parsePath(path, r.Header)
+	p, err := httpserver.ParsePath(path)
 	if err != nil {
 		// Cannot parse multitenant path. Skip it - probably it will be parsed later.
 		return false
 	}
 	if p.Prefix != "insert" {
-		// processMultitenantRequest is called for all unmatched path variants,
-		// but we should try parsing only /insert prefixed to avoid catching all possible paths.
-		return false
+		httpserver.Errorf(w, r, `unsupported multitenant prefix: %q; expected "insert"`, p.Prefix)
+		return true
 	}
 	at, err := auth.NewTokenPossibleMultitenant(p.AuthToken)
 	if err != nil {
@@ -668,17 +606,6 @@ func processMultitenantRequest(w http.ResponseWriter, r *http.Request, path stri
 		}
 		firehose.WriteSuccessResponse(w, r)
 		return true
-	case "zabbixconnector/api/v1/history":
-		zabbixconnectorHistoryRequests.Inc()
-		if err := zabbixconnector.InsertHandlerForHTTP(at, r); err != nil {
-			zabbixconnectorHistoryErrors.Inc()
-			w.Header().Set("Content-Type", "application/json")
-			w.WriteHeader(http.StatusBadRequest)
-			fmt.Fprintf(w, `{"error":%q}`, err.Error())
-			return true
-		}
-		w.WriteHeader(http.StatusOK)
-		return true
 	case "newrelic":
 		newrelicCheckRequest.Inc()
 		w.Header().Set("Content-Type", "application/json")
@@ -800,9 +727,6 @@ var (
 	opentelemetryPushRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/opentelemetry/v1/metrics", protocol="opentelemetry"}`)
 	opentelemetryPushErrors   = metrics.NewCounter(`vmagent_http_request_errors_total{path="/opentelemetry/v1/metrics", protocol="opentelemetry"}`)
 
-	zabbixconnectorHistoryRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/zabbixconnector/api/v1/history", protocol="zabbixconnector"}`)
-	zabbixconnectorHistoryErrors   = metrics.NewCounter(`vmagent_http_request_errors_total{path="/zabbixconnector/api/v1/history", protocol="zabbixconnector"}`)
-
 	newrelicWriteRequests = metrics.NewCounter(`vm_http_requests_total{path="/newrelic/infra/v2/metrics/events/bulk", protocol="newrelic"}`)
 	newrelicWriteErrors   = metrics.NewCounter(`vm_http_request_errors_total{path="/newrelic/infra/v2/metrics/events/bulk", protocol="newrelic"}`)
 
@@ -823,12 +747,6 @@ var (
 	promscrapeConfigRequests       = metrics.NewCounter(`vmagent_http_requests_total{path="/config"}`)
 	promscrapeStatusConfigRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/api/v1/status/config"}`)
 
-	remoteWriteRelabelConfigRequests       = metrics.NewCounter(`vmagent_http_requests_total{path="/remotewrite-relabel-config"}`)
-	remoteWriteStatusRelabelConfigRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/api/v1/status/remotewrite-relabel-config"}`)
-
-	remoteWriteURLRelabelConfigRequests       = metrics.NewCounter(`vmagent_http_requests_total{path="/remotewrite-url-relabel-config"}`)
-	remoteWriteStatusURLRelabelConfigRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/api/v1/status/remotewrite-url-relabel-config"}`)
-
 	promscrapeConfigReloadRequests = metrics.NewCounter(`vmagent_http_requests_total{path="/-/reload"}`)
 )
 

app/vmagent/native/request_handler.go

@@ -8,7 +8,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/native/stream"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
@@ -35,7 +35,7 @@ func InsertHandler(at *auth.Token, req *http.Request) error {
 	})
 }
 
-func insertRows(at *auth.Token, block *stream.Block, extraLabels []prompb.Label) error {
+func insertRows(at *auth.Token, block *stream.Block, extraLabels []prompbmarshal.Label) error {
 	ctx := common.GetPushCtx()
 	defer common.PutPushCtx(ctx)
 
@@ -53,13 +53,13 @@ func insertRows(at *auth.Token, block *stream.Block, extraLabels []prompb.Label)
 	samples := ctx.Samples[:0]
 	mn := &block.MetricName
 	labelsLen := len(labels)
-	labels = append(labels, prompb.Label{
+	labels = append(labels, prompbmarshal.Label{
 		Name:  "__name__",
 		Value: bytesutil.ToUnsafeString(mn.MetricGroup),
 	})
 	for j := range mn.Tags {
 		tag := &mn.Tags[j]
-		labels = append(labels, prompb.Label{
+		labels = append(labels, prompbmarshal.Label{
 			Name:  bytesutil.ToUnsafeString(tag.Key),
 			Value: bytesutil.ToUnsafeString(tag.Value),
 		})
@@ -72,12 +72,12 @@ func insertRows(at *auth.Token, block *stream.Block, extraLabels []prompb.Label)
 	}
 	samplesLen := len(samples)
 	for j, value := range values {
-		samples = append(samples, prompb.Sample{
+		samples = append(samples, prompbmarshal.Sample{
 			Value:     value,
 			Timestamp: timestamps[j],
 		})
 	}
-	tssDst = append(tssDst, prompb.TimeSeries{
+	tssDst = append(tssDst, prompbmarshal.TimeSeries{
 		Labels:  labels[labelsLen:],
 		Samples: samples[samplesLen:],
 	})

app/vmagent/newrelic/request_handler.go

@@ -9,7 +9,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/newrelic"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/newrelic/stream"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
@@ -34,7 +34,7 @@ func InsertHandlerForHTTP(at *auth.Token, req *http.Request) error {
 	})
 }
 
-func insertRows(at *auth.Token, rows []newrelic.Row, extraLabels []prompb.Label) error {
+func insertRows(at *auth.Token, rows []newrelic.Row, extraLabels []prompbmarshal.Label) error {
 	ctx := common.GetPushCtx()
 	defer common.PutPushCtx(ctx)
 
@@ -49,22 +49,22 @@ func insertRows(at *auth.Token, rows []newrelic.Row, extraLabels []prompb.Label)
 		for j := range srcSamples {
 			s := &srcSamples[j]
 			labelsLen := len(labels)
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  "__name__",
 				Value: bytesutil.ToUnsafeString(s.Name),
 			})
 			for k := range tags {
 				t := &tags[k]
-				labels = append(labels, prompb.Label{
+				labels = append(labels, prompbmarshal.Label{
 					Name:  bytesutil.ToUnsafeString(t.Key),
 					Value: bytesutil.ToUnsafeString(t.Value),
 				})
 			}
-			samples = append(samples, prompb.Sample{
+			samples = append(samples, prompbmarshal.Sample{
 				Value:     s.Value,
 				Timestamp: r.Timestamp,
 			})
-			tssDst = append(tssDst, prompb.TimeSeries{
+			tssDst = append(tssDst, prompbmarshal.TimeSeries{
 				Labels:  labels[labelsLen:],
 				Samples: samples[len(samples)-1:],
 			})
@@ -78,7 +78,7 @@ func insertRows(at *auth.Token, rows []newrelic.Row, extraLabels []prompb.Label)
 	if !remotewrite.TryPush(at, &ctx.WriteRequest) {
 		return remotewrite.ErrQueueFullHTTPRetry
 	}
-	rowsInserted.Add(samplesCount)
+	rowsInserted.Add(len(rows))
 	if at != nil {
 		rowsTenantInserted.Get(at).Add(samplesCount)
 	}

app/vmagent/opentelemetry/request_handler.go

@@ -2,14 +2,12 @@ package opentelemetry
 
 import (
 	"fmt"
-	"io"
 	"net/http"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prommetadata"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentelemetry/firehose"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentelemetry/stream"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
@@ -18,20 +16,11 @@ import (
 )
 
 var (
-	rowsInserted           = metrics.NewCounter(`vmagent_rows_inserted_total{type="opentelemetry"}`)
-	metadataInserted       = metrics.NewCounter(`vmagent_metadata_inserted_total{type="opentelemetry"}`)
-	rowsTenantInserted     = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_rows_total{type="opentelemetry"}`)
-	metadataTenantInserted = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_metadata_total{type="opentelemetry"}`)
-	rowsPerInsert          = metrics.NewHistogram(`vmagent_rows_per_insert{type="opentelemetry"}`)
+	rowsInserted       = metrics.NewCounter(`vmagent_rows_inserted_total{type="opentelemetry"}`)
+	rowsTenantInserted = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_rows_total{type="opentelemetry"}`)
+	rowsPerInsert      = metrics.NewHistogram(`vmagent_rows_per_insert{type="opentelemetry"}`)
 )
 
-// InsertHandlerForReader processes metrics from given reader.
-func InsertHandlerForReader(at *auth.Token, r io.Reader, encoding string) error {
-	return stream.ParseStream(r, encoding, nil, func(tss []prompb.TimeSeries, mms []prompb.MetricMetadata) error {
-		return insertRows(at, tss, mms, nil)
-	})
-}
-
 // InsertHandler processes opentelemetry metrics.
 func InsertHandler(at *auth.Token, req *http.Request) error {
 	extraLabels, err := protoparserutil.GetExtraLabels(req)
@@ -47,12 +36,12 @@ func InsertHandler(at *auth.Token, req *http.Request) error {
 			return fmt.Errorf("json encoding isn't supported for opentelemetry format. Use protobuf encoding")
 		}
 	}
-	return stream.ParseStream(req.Body, encoding, processBody, func(tss []prompb.TimeSeries, mms []prompb.MetricMetadata) error {
-		return insertRows(at, tss, mms, extraLabels)
+	return stream.ParseStream(req.Body, encoding, processBody, func(tss []prompbmarshal.TimeSeries) error {
+		return insertRows(at, tss, extraLabels)
 	})
 }
 
-func insertRows(at *auth.Token, tss []prompb.TimeSeries, mms []prompb.MetricMetadata, extraLabels []prompb.Label) error {
+func insertRows(at *auth.Token, tss []prompbmarshal.TimeSeries, extraLabels []prompbmarshal.Label) error {
 	ctx := common.GetPushCtx()
 	defer common.PutPushCtx(ctx)
 
@@ -68,29 +57,20 @@ func insertRows(at *auth.Token, tss []prompb.TimeSeries, mms []prompb.MetricMeta
 		labels = append(labels, extraLabels...)
 		samplesLen := len(samples)
 		samples = append(samples, ts.Samples...)
-		tssDst = append(tssDst, prompb.TimeSeries{
+		tssDst = append(tssDst, prompbmarshal.TimeSeries{
 			Labels:  labels[labelsLen:],
 			Samples: samples[samplesLen:],
 		})
 	}
 	ctx.WriteRequest.Timeseries = tssDst
-
-	var metadataTotal int
-	if prommetadata.IsEnabled() {
-		ctx.WriteRequest.Metadata = mms
-		metadataTotal = len(mms)
-	}
-
 	ctx.Labels = labels
 	ctx.Samples = samples
 	if !remotewrite.TryPush(at, &ctx.WriteRequest) {
 		return remotewrite.ErrQueueFullHTTPRetry
 	}
 	rowsInserted.Add(rowsTotal)
-	metadataInserted.Add(metadataTotal)
 	if at != nil {
 		rowsTenantInserted.Get(at).Add(rowsTotal)
-		metadataTenantInserted.Get(at).Add(metadataTotal)
 	}
 	rowsPerInsert.Update(float64(rowsTotal))
 	return nil

app/vmagent/opentsdb/request_handler.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	parser "github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentsdb"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentsdb/stream"
 	"github.com/VictoriaMetrics/metrics"
@@ -33,22 +33,22 @@ func insertRows(rows []parser.Row) error {
 	for i := range rows {
 		r := &rows[i]
 		labelsLen := len(labels)
-		labels = append(labels, prompb.Label{
+		labels = append(labels, prompbmarshal.Label{
 			Name:  "__name__",
 			Value: r.Metric,
 		})
 		for j := range r.Tags {
 			tag := &r.Tags[j]
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  tag.Key,
 				Value: tag.Value,
 			})
 		}
-		samples = append(samples, prompb.Sample{
+		samples = append(samples, prompbmarshal.Sample{
 			Value:     r.Value,
 			Timestamp: r.Timestamp,
 		})
-		tssDst = append(tssDst, prompb.TimeSeries{
+		tssDst = append(tssDst, prompbmarshal.TimeSeries{
 			Labels:  labels[labelsLen:],
 			Samples: samples[len(samples)-1:],
 		})

app/vmagent/opentsdbhttp/request_handler.go

@@ -6,7 +6,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentsdbhttp"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentsdbhttp/stream"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
@@ -30,7 +30,7 @@ func InsertHandler(at *auth.Token, req *http.Request) error {
 	})
 }
 
-func insertRows(at *auth.Token, rows []opentsdbhttp.Row, extraLabels []prompb.Label) error {
+func insertRows(at *auth.Token, rows []opentsdbhttp.Row, extraLabels []prompbmarshal.Label) error {
 	ctx := common.GetPushCtx()
 	defer common.PutPushCtx(ctx)
 
@@ -40,23 +40,23 @@ func insertRows(at *auth.Token, rows []opentsdbhttp.Row, extraLabels []prompb.La
 	for i := range rows {
 		r := &rows[i]
 		labelsLen := len(labels)
-		labels = append(labels, prompb.Label{
+		labels = append(labels, prompbmarshal.Label{
 			Name:  "__name__",
 			Value: r.Metric,
 		})
 		for j := range r.Tags {
 			tag := &r.Tags[j]
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  tag.Key,
 				Value: tag.Value,
 			})
 		}
 		labels = append(labels, extraLabels...)
-		samples = append(samples, prompb.Sample{
+		samples = append(samples, prompbmarshal.Sample{
 			Value:     r.Value,
 			Timestamp: r.Timestamp,
 		})
-		tssDst = append(tssDst, prompb.TimeSeries{
+		tssDst = append(tssDst, prompbmarshal.TimeSeries{
 			Labels:  labels[labelsLen:],
 			Samples: samples[len(samples)-1:],
 		})

app/vmagent/prometheusimport/request_handler.go

@@ -7,8 +7,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prommetadata"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus/stream"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
@@ -17,12 +16,9 @@ import (
 )
 
 var (
-	rowsInserted           = metrics.NewCounter(`vmagent_rows_inserted_total{type="prometheus"}`)
-	metadataInserted       = metrics.NewCounter(`vmagent_metadata_inserted_total{type="prometheus"}`)
-	rowsTenantInserted     = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_rows_total{type="prometheus"}`)
-	metadataTenantInserted = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_metadata_total{type="prometheus"}`)
-
-	rowsPerInsert = metrics.NewHistogram(`vmagent_rows_per_insert{type="prometheus"}`)
+	rowsInserted       = metrics.NewCounter(`vmagent_rows_inserted_total{type="prometheus"}`)
+	rowsTenantInserted = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_rows_total{type="prometheus"}`)
+	rowsPerInsert      = metrics.NewHistogram(`vmagent_rows_per_insert{type="prometheus"}`)
 )
 
 // InsertHandler processes `/api/v1/import/prometheus` request.
@@ -36,67 +32,53 @@ func InsertHandler(at *auth.Token, req *http.Request) error {
 		return err
 	}
 	encoding := req.Header.Get("Content-Encoding")
-	return stream.Parse(req.Body, defaultTimestamp, encoding, true, prommetadata.IsEnabled(), func(rows []prometheus.Row, mms []prometheus.Metadata) error {
-		return insertRows(at, rows, mms, extraLabels)
+	return stream.Parse(req.Body, defaultTimestamp, encoding, true, func(rows []prometheus.Row) error {
+		return insertRows(at, rows, extraLabels)
 	}, func(s string) {
 		httpserver.LogError(req, s)
 	})
 }
 
-func insertRows(at *auth.Token, rows []prometheus.Row, mms []prometheus.Metadata, extraLabels []prompb.Label) error {
+func insertRows(at *auth.Token, rows []prometheus.Row, extraLabels []prompbmarshal.Label) error {
 	ctx := common.GetPushCtx()
 	defer common.PutPushCtx(ctx)
 
 	tssDst := ctx.WriteRequest.Timeseries[:0]
-	mmsDst := ctx.WriteRequest.Metadata[:0]
 	labels := ctx.Labels[:0]
 	samples := ctx.Samples[:0]
 	for i := range rows {
 		r := &rows[i]
 		labelsLen := len(labels)
-		labels = append(labels, prompb.Label{
+		labels = append(labels, prompbmarshal.Label{
 			Name:  "__name__",
 			Value: r.Metric,
 		})
 		for j := range r.Tags {
 			tag := &r.Tags[j]
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  tag.Key,
 				Value: tag.Value,
 			})
 		}
 		labels = append(labels, extraLabels...)
-		samples = append(samples, prompb.Sample{
+		samples = append(samples, prompbmarshal.Sample{
 			Value:     r.Value,
 			Timestamp: r.Timestamp,
 		})
-		tssDst = append(tssDst, prompb.TimeSeries{
+		tssDst = append(tssDst, prompbmarshal.TimeSeries{
 			Labels:  labels[labelsLen:],
 			Samples: samples[len(samples)-1:],
 		})
 	}
-	for i := range mms {
-		mm := &mms[i]
-		mmsDst = append(mmsDst, prompb.MetricMetadata{
-			MetricFamilyName: mm.Metric,
-			Help:             mm.Help,
-			Type:             mm.Type,
-			// there is no unit in Prometheus exposition formats
-
-		})
-	}
 	ctx.WriteRequest.Timeseries = tssDst
-	ctx.WriteRequest.Metadata = mmsDst
 	ctx.Labels = labels
 	ctx.Samples = samples
 	if !remotewrite.TryPush(at, &ctx.WriteRequest) {
 		return remotewrite.ErrQueueFullHTTPRetry
 	}
 	rowsInserted.Add(len(rows))
-	metadataInserted.Add(len(mms))
 	if at != nil {
 		rowsTenantInserted.Get(at).Add(len(rows))
-		metadataTenantInserted.Get(at).Add(len(mms))
 	}
 	rowsPerInsert.Update(float64(len(rows)))
 	return nil

app/vmagent/prometheusimport/request_handler_test.go

@@ -55,6 +55,6 @@ func tearDown() {
 	srv.Close()
 	logger.ResetOutputForTest()
 	tmpDataDir := flag.Lookup("remoteWrite.tmpDataPath").Value.String()
-	fs.MustRemoveDir(tmpDataDir)
+	fs.MustRemoveAll(tmpDataDir)
 
 }

app/vmagent/promremotewrite/request_handler.go

@@ -6,8 +6,8 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prommetadata"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/promremotewrite/stream"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
@@ -15,11 +15,9 @@ import (
 )
 
 var (
-	rowsInserted           = metrics.NewCounter(`vmagent_rows_inserted_total{type="promremotewrite"}`)
-	metadataInserted       = metrics.NewCounter(`vmagent_metadata_inserted_total{type="promremotewrite"}`)
-	rowsTenantInserted     = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_rows_total{type="promremotewrite"}`)
-	metadataTenantInserted = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_metadata_total{type="promremotewrite"}`)
-	rowsPerInsert          = metrics.NewHistogram(`vmagent_rows_per_insert{type="promremotewrite"}`)
+	rowsInserted       = metrics.NewCounter(`vmagent_rows_inserted_total{type="promremotewrite"}`)
+	rowsTenantInserted = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_rows_total{type="promremotewrite"}`)
+	rowsPerInsert      = metrics.NewHistogram(`vmagent_rows_per_insert{type="promremotewrite"}`)
 )
 
 // InsertHandler processes remote write for prometheus.
@@ -29,18 +27,17 @@ func InsertHandler(at *auth.Token, req *http.Request) error {
 		return err
 	}
 	isVMRemoteWrite := req.Header.Get("Content-Encoding") == "zstd"
-	return stream.Parse(req.Body, isVMRemoteWrite, func(tss []prompb.TimeSeries, mms []prompb.MetricMetadata) error {
-		return insertRows(at, tss, mms, extraLabels)
+	return stream.Parse(req.Body, isVMRemoteWrite, func(tss []prompb.TimeSeries) error {
+		return insertRows(at, tss, extraLabels)
 	})
 }
 
-func insertRows(at *auth.Token, timeseries []prompb.TimeSeries, mms []prompb.MetricMetadata, extraLabels []prompb.Label) error {
+func insertRows(at *auth.Token, timeseries []prompb.TimeSeries, extraLabels []prompbmarshal.Label) error {
 	ctx := common.GetPushCtx()
 	defer common.PutPushCtx(ctx)
 
 	rowsTotal := 0
 	tssDst := ctx.WriteRequest.Timeseries[:0]
-	mmsDst := ctx.WriteRequest.Metadata[:0]
 	labels := ctx.Labels[:0]
 	samples := ctx.Samples[:0]
 	for i := range timeseries {
@@ -49,7 +46,7 @@ func insertRows(at *auth.Token, timeseries []prompb.TimeSeries, mms []prompb.Met
 		labelsLen := len(labels)
 		for i := range ts.Labels {
 			label := &ts.Labels[i]
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  label.Name,
 				Value: label.Value,
 			})
@@ -58,36 +55,17 @@ func insertRows(at *auth.Token, timeseries []prompb.TimeSeries, mms []prompb.Met
 		samplesLen := len(samples)
 		for i := range ts.Samples {
 			sample := &ts.Samples[i]
-			samples = append(samples, prompb.Sample{
+			samples = append(samples, prompbmarshal.Sample{
 				Value:     sample.Value,
 				Timestamp: sample.Timestamp,
 			})
 		}
-		tssDst = append(tssDst, prompb.TimeSeries{
+		tssDst = append(tssDst, prompbmarshal.TimeSeries{
 			Labels:  labels[labelsLen:],
 			Samples: samples[samplesLen:],
 		})
 	}
 	ctx.WriteRequest.Timeseries = tssDst
-
-	var metadataTotal int
-	if prommetadata.IsEnabled() {
-		for i := range mms {
-			mm := &mms[i]
-			mmsDst = append(mmsDst, prompb.MetricMetadata{
-				MetricFamilyName: mm.MetricFamilyName,
-				Help:             mm.Help,
-				Type:             mm.Type,
-				Unit:             mm.Unit,
-
-				AccountID: mm.AccountID,
-				ProjectID: mm.ProjectID,
-			})
-		}
-		ctx.WriteRequest.Metadata = mmsDst
-		metadataTotal = len(mms)
-	}
-
 	ctx.Labels = labels
 	ctx.Samples = samples
 	if !remotewrite.TryPush(at, &ctx.WriteRequest) {
@@ -96,9 +74,7 @@ func insertRows(at *auth.Token, timeseries []prompb.TimeSeries, mms []prompb.Met
 	rowsInserted.Add(rowsTotal)
 	if at != nil {
 		rowsTenantInserted.Get(at).Add(rowsTotal)
-		metadataTenantInserted.Get(at).Add(metadataTotal)
 	}
-	metadataInserted.Add(metadataTotal)
 	rowsPerInsert.Update(float64(rowsTotal))
 	return nil
 }

app/vmagent/remotewrite/client.go

@@ -13,18 +13,19 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/VictoriaMetrics/metrics"
-	"github.com/golang/snappy"
-
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/awsapi"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding/zstd"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httputil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/persistentqueue"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/ratelimiter"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/timerpool"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/timeutil"
+	"github.com/VictoriaMetrics/metrics"
+	"github.com/golang/snappy"
 )
 
 var (
@@ -59,8 +60,6 @@ var (
 		"Multiple headers must be delimited by '^^': -remoteWrite.headers='header1:value1^^header2:value2'")
 
 	basicAuthUsername     = flagutil.NewArrayString("remoteWrite.basicAuth.username", "Optional basic auth username to use for the corresponding -remoteWrite.url")
-	basicAuthUsernameFile = flagutil.NewArrayString("remoteWrite.basicAuth.usernameFile", "Optional path to basic auth username to use for the corresponding -remoteWrite.url. "+
-		"The file is re-read every second")
 	basicAuthPassword     = flagutil.NewArrayString("remoteWrite.basicAuth.password", "Optional basic auth password to use for the corresponding -remoteWrite.url")
 	basicAuthPasswordFile = flagutil.NewArrayString("remoteWrite.basicAuth.passwordFile", "Optional path to basic auth password to use for the corresponding -remoteWrite.url. "+
 		"The file is re-read every second")
@@ -204,10 +203,14 @@ func (c *client) init(argIdx, concurrency int, sanitizedURL string) {
 	c.retriesCount = metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_retries_count_total{url=%q}`, c.sanitizedURL))
 	c.sendDuration = metrics.GetOrCreateFloatCounter(fmt.Sprintf(`vmagent_remotewrite_send_duration_seconds_total{url=%q}`, c.sanitizedURL))
 	metrics.GetOrCreateGauge(fmt.Sprintf(`vmagent_remotewrite_queues{url=%q}`, c.sanitizedURL), func() float64 {
-		return float64(concurrency)
+		return float64(*queues)
 	})
-	for range concurrency {
-		c.wg.Go(c.runWorker)
+	for i := 0; i < concurrency; i++ {
+		c.wg.Add(1)
+		go func() {
+			defer c.wg.Done()
+			c.runWorker()
+		}()
 	}
 	logger.Infof("initialized client for -remoteWrite.url=%q", c.sanitizedURL)
 }
@@ -225,14 +228,12 @@ func getAuthConfig(argIdx int) (*promauth.Config, error) {
 		hdrs = strings.Split(headersValue, "^^")
 	}
 	username := basicAuthUsername.GetOptionalArg(argIdx)
-	usernameFile := basicAuthUsernameFile.GetOptionalArg(argIdx)
 	password := basicAuthPassword.GetOptionalArg(argIdx)
 	passwordFile := basicAuthPasswordFile.GetOptionalArg(argIdx)
 	var basicAuthCfg *promauth.BasicAuthConfig
-	if username != "" || usernameFile != "" || password != "" || passwordFile != "" {
+	if username != "" || password != "" || passwordFile != "" {
 		basicAuthCfg = &promauth.BasicAuthConfig{
 			Username:     username,
-			UsernameFile: usernameFile,
 			Password:     promauth.NewSecret(password),
 			PasswordFile: passwordFile,
 		}
@@ -294,7 +295,7 @@ func getAWSAPIConfig(argIdx int) (*awsapi.Config, error) {
 	accessKey := awsAccessKey.GetOptionalArg(argIdx)
 	secretKey := awsSecretKey.GetOptionalArg(argIdx)
 	service := awsService.GetOptionalArg(argIdx)
-	cfg, err := awsapi.NewConfig(ec2Endpoint, stsEndpoint, region, roleARN, accessKey, secretKey, service, "")
+	cfg, err := awsapi.NewConfig(ec2Endpoint, stsEndpoint, region, roleARN, accessKey, secretKey, service)
 	if err != nil {
 		return nil, err
 	}
@@ -409,7 +410,8 @@ func (c *client) newRequest(url string, body []byte) (*http.Request, error) {
 // Otherwise, it tries sending the block to remote storage indefinitely.
 func (c *client) sendBlockHTTP(block []byte) bool {
 	c.rl.Register(len(block))
-	bt := timeutil.NewBackoffTimer(c.retryMinInterval, c.retryMaxInterval)
+	maxRetryDuration := timeutil.AddJitterToDuration(c.retryMaxInterval)
+	retryDuration := timeutil.AddJitterToDuration(c.retryMinInterval)
 	retriesCount := 0
 
 again:
@@ -418,10 +420,19 @@ again:
 	c.requestDuration.UpdateDuration(startTime)
 	if err != nil {
 		c.errorsCount.Inc()
-		remoteWriteRetryLogger.Warnf("couldn't send a block with size %d bytes to %q: %s; re-sending the block in %s",
-			len(block), c.sanitizedURL, err, bt.CurrentDelay())
-		if !bt.Wait(c.stopCh) {
+		retryDuration *= 2
+		if retryDuration > maxRetryDuration {
+			retryDuration = maxRetryDuration
+		}
+		remoteWriteRetryLogger.Warnf("couldn't send a block with size %d bytes to %q: %s; re-sending the block in %.3f seconds",
+			len(block), c.sanitizedURL, err, retryDuration.Seconds())
+		t := timerpool.Get(retryDuration)
+		select {
+		case <-c.stopCh:
+			timerpool.Put(t)
 			return false
+		case <-t.C:
+			timerpool.Put(t)
 		}
 		c.retriesCount.Inc()
 		goto again
@@ -437,8 +448,7 @@ again:
 	}
 
 	metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_requests_total{url=%q, status_code="%d"}`, c.sanitizedURL, statusCode)).Inc()
-	switch statusCode {
-	case 409:
+	if statusCode == 409 {
 		logBlockRejected(block, c.sanitizedURL, resp)
 
 		// Just drop block on 409 status code like Prometheus does.
@@ -451,28 +461,22 @@ again:
 		// - Remote Write v2 specification explicitly specifies a `415 Unsupported Media Type` for unsupported encodings.
 		// - Real-world implementations of v1 use both 400 and 415 status codes.
 		// See more in research: https://github.com/VictoriaMetrics/VictoriaMetrics/pull/8462#issuecomment-2786918054
-	case 415, 400:
+	} else if statusCode == 415 || statusCode == 400 {
+		if c.canDowngradeVMProto.Swap(false) {
+			logger.Infof("received unsupported media type or bad request from remote storage at %q. Downgrading protocol from VictoriaMetrics to Prometheus remote write for all future requests. "+
+				"See https://docs.victoriametrics.com/victoriametrics/vmagent/#victoriametrics-remote-write-protocol", c.sanitizedURL)
+			c.useVMProto.Store(false)
+		}
+
 		if encoding.IsZstd(block) {
 			logger.Infof("received unsupported media type or bad request from remote storage at %q. Re-packing the block to Prometheus remote write and retrying."+
 				"See https://docs.victoriametrics.com/victoriametrics/vmagent/#victoriametrics-remote-write-protocol", c.sanitizedURL)
 
-			zstdBlockLen := len(block)
-			block, err = repackBlockFromZstdToSnappy(block)
-			if err == nil {
-				if c.canDowngradeVMProto.Swap(false) {
-					logger.Infof("received unsupported media type or bad request from remote storage at %q. Downgrading protocol from VictoriaMetrics to Prometheus remote write for all future requests. "+
-						"See https://docs.victoriametrics.com/victoriametrics/vmagent/#victoriametrics-remote-write-protocol", c.sanitizedURL)
-					c.useVMProto.Store(false)
-				}
+			block = mustRepackBlockFromZstdToSnappy(block)
 
-				c.retriesCount.Inc()
-				_ = resp.Body.Close()
-				goto again
-			}
-
-			logger.Warnf("failed to repack zstd block (%d bytes) to snappy: %s; The block will be rejected. "+
-				"Possible cause: ungraceful shutdown leading to persisted queue corruption.",
-				zstdBlockLen, err)
+			c.retriesCount.Inc()
+			_ = resp.Body.Close()
+			goto again
 		}
 
 		// Just drop snappy blocks on 400 or 415 status codes like Prometheus does.
@@ -487,10 +491,7 @@ again:
 	// Unexpected status code returned
 	retriesCount++
 	retryAfterHeader := parseRetryAfterHeader(resp.Header.Get("Retry-After"))
-	// retryAfterDuration has the highest priority duration
-	if retryAfterHeader > 0 {
-		bt.SetDelay(retryAfterHeader)
-	}
+	retryDuration = getRetryDuration(retryAfterHeader, retryDuration, maxRetryDuration)
 
 	// Handle response
 	body, err := io.ReadAll(resp.Body)
@@ -499,10 +500,15 @@ again:
 		logger.Errorf("cannot read response body from %q during retry #%d: %s", c.sanitizedURL, retriesCount, err)
 	} else {
 		logger.Errorf("unexpected status code received after sending a block with size %d bytes to %q during retry #%d: %d; response body=%q; "+
-			"re-sending the block in %s", len(block), c.sanitizedURL, retriesCount, statusCode, body, bt.CurrentDelay())
+			"re-sending the block in %.3f seconds", len(block), c.sanitizedURL, retriesCount, statusCode, body, retryDuration.Seconds())
 	}
-	if !bt.Wait(c.stopCh) {
+	t := timerpool.Get(retryDuration)
+	select {
+	case <-c.stopCh:
+		timerpool.Put(t)
 		return false
+	case <-t.C:
+		timerpool.Put(t)
 	}
 	c.retriesCount.Inc()
 	goto again
@@ -511,21 +517,35 @@ again:
 var remoteWriteRejectedLogger = logger.WithThrottler("remoteWriteRejected", 5*time.Second)
 var remoteWriteRetryLogger = logger.WithThrottler("remoteWriteRetry", 5*time.Second)
 
-// repackBlockFromZstdToSnappy repacks the given zstd-compressed block to snappy-compressed block.
+// getRetryDuration returns retry duration.
+// retryAfterDuration has the highest priority.
+// If retryAfterDuration is not specified, retryDuration gets doubled.
+// retryDuration can't exceed maxRetryDuration.
 //
-// The input block may be corrupted, for example, if vmagent was shut down ungracefully and
-// failed to properly update the persisted queue files. In such cases, zstd decompression
-// will fail and an error will be returned.
-//
-// For more details, see: https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9417
-func repackBlockFromZstdToSnappy(zstdBlock []byte) ([]byte, error) {
-	plainBlock := make([]byte, 0, len(zstdBlock)*2)
-	plainBlock, err := encoding.DecompressZSTD(plainBlock, zstdBlock)
-	if err != nil {
-		return nil, err
+// Also see: https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6097
+func getRetryDuration(retryAfterDuration, retryDuration, maxRetryDuration time.Duration) time.Duration {
+	// retryAfterDuration has the highest priority duration
+	if retryAfterDuration > 0 {
+		return timeutil.AddJitterToDuration(retryAfterDuration)
 	}
 
-	return snappy.Encode(nil, plainBlock), nil
+	// default backoff retry policy
+	retryDuration *= 2
+	if retryDuration > maxRetryDuration {
+		retryDuration = maxRetryDuration
+	}
+
+	return retryDuration
+}
+
+func mustRepackBlockFromZstdToSnappy(zstdBlock []byte) []byte {
+	plainBlock := make([]byte, 0, len(zstdBlock)*2)
+	plainBlock, err := zstd.Decompress(plainBlock, zstdBlock)
+	if err != nil {
+		logger.Panicf("FATAL: cannot re-pack block with size %d bytes from Zstd to Snappy: %s", len(zstdBlock), err)
+	}
+
+	return snappy.Encode(nil, plainBlock)
 }
 
 func logBlockRejected(block []byte, sanitizedURL string, resp *http.Response) {
@@ -541,20 +561,24 @@ func logBlockRejected(block []byte, sanitizedURL string, resp *http.Response) {
 }
 
 // parseRetryAfterHeader parses `Retry-After` value retrieved from HTTP response header.
-//
-// s should be in either HTTP-date or a number of seconds.
-// It returns time.Duration(0) if s does not follow RFC 7231.
-func parseRetryAfterHeader(s string) time.Duration {
-	if s == "" {
-		return 0
+// retryAfterString should be in either HTTP-date or a number of seconds.
+// It will return time.Duration(0) if `retryAfterString` does not follow RFC 7231.
+func parseRetryAfterHeader(retryAfterString string) (retryAfterDuration time.Duration) {
+	if retryAfterString == "" {
+		return retryAfterDuration
 	}
 
+	defer func() {
+		v := retryAfterDuration.Seconds()
+		logger.Infof("'Retry-After: %s' parsed into %.2f second(s)", retryAfterString, v)
+	}()
+
 	// Retry-After could be in "Mon, 02 Jan 2006 15:04:05 GMT" format.
-	if parsedTime, err := time.Parse(http.TimeFormat, s); err == nil {
+	if parsedTime, err := time.Parse(http.TimeFormat, retryAfterString); err == nil {
 		return time.Duration(time.Until(parsedTime).Seconds()) * time.Second
 	}
 	// Retry-After could be in seconds.
-	if seconds, err := strconv.Atoi(s); err == nil {
+	if seconds, err := strconv.Atoi(retryAfterString); err == nil {
 		return time.Duration(seconds) * time.Second
 	}
 

app/vmagent/remotewrite/client_test.go

@@ -6,12 +6,66 @@ import (
 	"testing"
 	"time"
 
-	"github.com/golang/snappy"
-
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
+	"github.com/golang/snappy"
 )
 
+func TestCalculateRetryDuration(t *testing.T) {
+	// `testFunc` call `calculateRetryDuration` for `n` times
+	// and evaluate if the result of `calculateRetryDuration` is
+	// 1. >= expectMinDuration
+	// 2. <= expectMinDuration + 10% (see timeutil.AddJitterToDuration)
+	f := func(retryAfterDuration, retryDuration time.Duration, n int, expectMinDuration time.Duration) {
+		t.Helper()
+
+		for i := 0; i < n; i++ {
+			retryDuration = getRetryDuration(retryAfterDuration, retryDuration, time.Minute)
+		}
+
+		expectMaxDuration := helper(expectMinDuration)
+		expectMinDuration = expectMinDuration - (1000 * time.Millisecond) // Avoid edge case when calculating time.Until(now)
+
+		if !(retryDuration >= expectMinDuration && retryDuration <= expectMaxDuration) {
+			t.Fatalf(
+				"incorrect retry duration, want (ms): [%d, %d], got (ms): %d",
+				expectMinDuration.Milliseconds(), expectMaxDuration.Milliseconds(),
+				retryDuration.Milliseconds(),
+			)
+		}
+	}
+
+	// Call calculateRetryDuration for 1 time.
+	{
+		// default backoff policy
+		f(0, time.Second, 1, 2*time.Second)
+		// default backoff policy exceed max limit"
+		f(0, 10*time.Minute, 1, time.Minute)
+
+		// retry after > default backoff policy
+		f(10*time.Second, 1*time.Second, 1, 10*time.Second)
+		// retry after < default backoff policy
+		f(1*time.Second, 10*time.Second, 1, 1*time.Second)
+		// retry after invalid and < default backoff policy
+		f(0, time.Second, 1, 2*time.Second)
+
+	}
+
+	// Call calculateRetryDuration for multiple times.
+	{
+		// default backoff policy 2 times
+		f(0, time.Second, 2, 4*time.Second)
+		// default backoff policy 3 times
+		f(0, time.Second, 3, 8*time.Second)
+		// default backoff policy N times exceed max limit
+		f(0, time.Second, 10, time.Minute)
+
+		// retry after 120s 1 times
+		f(120*time.Second, time.Second, 1, 120*time.Second)
+		// retry after 120s 2 times
+		f(120*time.Second, time.Second, 2, 120*time.Second)
+	}
+}
+
 func TestParseRetryAfterHeader(t *testing.T) {
 	f := func(retryAfterString string, expectResult time.Duration) {
 		t.Helper()
@@ -37,42 +91,21 @@ func TestParseRetryAfterHeader(t *testing.T) {
 	f(time.Now().Add(10*time.Second).Format("Mon, 02 Jan 2006 15:04:05 FAKETZ"), 0)
 }
 
-func TestInitSecretFlags(t *testing.T) {
-	showRemoteWriteURLOrig := *showRemoteWriteURL
-	defer func() {
-		*showRemoteWriteURL = showRemoteWriteURLOrig
-		flagutil.UnregisterAllSecretFlags()
-	}()
-
-	flagutil.UnregisterAllSecretFlags()
-	*showRemoteWriteURL = false
-	InitSecretFlags()
-	if !flagutil.IsSecretFlag("remotewrite.url") {
-		t.Fatalf("expecting remoteWrite.url to be secret")
-	}
-	if !flagutil.IsSecretFlag("remotewrite.headers") {
-		t.Fatalf("expecting remoteWrite.headers to be secret")
+// helper calculate the max possible time duration calculated by timeutil.AddJitterToDuration.
+func helper(d time.Duration) time.Duration {
+	dv := d / 10
+	if dv > 10*time.Second {
+		dv = 10 * time.Second
 	}
 
-	flagutil.UnregisterAllSecretFlags()
-	*showRemoteWriteURL = true
-	InitSecretFlags()
-	if flagutil.IsSecretFlag("remotewrite.url") {
-		t.Fatalf("remoteWrite.url must remain visible when -remoteWrite.showURL is set")
-	}
-	if !flagutil.IsSecretFlag("remotewrite.headers") {
-		t.Fatalf("expecting remoteWrite.headers to remain secret")
-	}
+	return d + dv
 }
 
 func TestRepackBlockFromZstdToSnappy(t *testing.T) {
 	expectedPlainBlock := []byte(`foobar`)
 
 	zstdBlock := encoding.CompressZSTDLevel(nil, expectedPlainBlock, 1)
-	snappyBlock, err := repackBlockFromZstdToSnappy(zstdBlock)
-	if err != nil {
-		t.Fatalf("unexpected error: %s", err)
-	}
+	snappyBlock := mustRepackBlockFromZstdToSnappy(zstdBlock)
 
 	actualPlainBlock, err := snappy.Decode(nil, snappyBlock)
 	if err != nil {
@@ -83,14 +116,3 @@ func TestRepackBlockFromZstdToSnappy(t *testing.T) {
 		t.Fatalf("unexpected plain block; got %q; want %q", actualPlainBlock, expectedPlainBlock)
 	}
 }
-
-func TestRepackBlockFromZstdToSnappyInvalidBlock(t *testing.T) {
-	snappyBlock, err := repackBlockFromZstdToSnappy([]byte("invalid zstd block"))
-
-	if err == nil {
-		t.Fatalf("expected error for invalid zstd block; got nil")
-	}
-	if len(snappyBlock) != 0 {
-		t.Fatalf("expected empty snappy block; got %d bytes", len(snappyBlock))
-	}
-}

app/vmagent/remotewrite/pendingseries.go

@@ -14,7 +14,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/persistentqueue"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/slicesutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/timeutil"
@@ -24,10 +24,9 @@ import (
 
 var (
 	flushInterval = flag.Duration("remoteWrite.flushInterval", time.Second, "Interval for flushing the data to remote storage. "+
-		"This option takes effect only when less than -remoteWrite.maxRowsPerBlock data points per -remoteWrite.flushInterval are pushed to -remoteWrite.url")
+		"This option takes effect only when less than 10K data points per second are pushed to -remoteWrite.url")
 	maxUnpackedBlockSize = flagutil.NewBytes("remoteWrite.maxBlockSize", 8*1024*1024, "The maximum block size to send to remote storage. Bigger blocks may improve performance at the cost of the increased memory usage. See also -remoteWrite.maxRowsPerBlock")
 	maxRowsPerBlock      = flag.Int("remoteWrite.maxRowsPerBlock", 10000, "The maximum number of samples to send in each block to remote storage. Higher number may improve performance at the cost of the increased memory usage. See also -remoteWrite.maxBlockSize")
-	maxMetadataPerBlock  = flag.Int("remoteWrite.maxMetadataPerBlock", 5000, "The maximum number of metadata to send in each block to remote storage. Higher number may improve performance at the cost of the increased memory usage. See also -remoteWrite.maxBlockSize")
 	vmProtoCompressLevel = flag.Int("remoteWrite.vmProtoCompressLevel", 0, "The compression level for VictoriaMetrics remote write protocol. "+
 		"Higher values reduce network traffic at the cost of higher CPU usage. Negative values reduce CPU usage at the cost of increased network traffic. "+
 		"See https://docs.victoriametrics.com/victoriametrics/vmagent/#victoriametrics-remote-write-protocol")
@@ -48,7 +47,11 @@ func newPendingSeries(fq *persistentqueue.FastQueue, isVMRemoteWrite *atomic.Boo
 	ps.wr.significantFigures = significantFigures
 	ps.wr.roundDigits = roundDigits
 	ps.stopCh = make(chan struct{})
-	ps.periodicFlusherWG.Go(ps.periodicFlusher)
+	ps.periodicFlusherWG.Add(1)
+	go func() {
+		defer ps.periodicFlusherWG.Done()
+		ps.periodicFlusher()
+	}()
 	return &ps
 }
 
@@ -57,16 +60,9 @@ func (ps *pendingSeries) MustStop() {
 	ps.periodicFlusherWG.Wait()
 }
 
-func (ps *pendingSeries) TryPushTimeSeries(tss []prompb.TimeSeries) bool {
+func (ps *pendingSeries) TryPush(tss []prompbmarshal.TimeSeries) bool {
 	ps.mu.Lock()
-	ok := ps.wr.tryPushTimeSeries(tss)
-	ps.mu.Unlock()
-	return ok
-}
-
-func (ps *pendingSeries) TryPushMetadata(mms []prompb.MetricMetadata) bool {
-	ps.mu.Lock()
-	ok := ps.wr.tryPushMetadata(mms)
+	ok := ps.wr.tryPush(tss)
 	ps.mu.Unlock()
 	return ok
 }
@@ -112,37 +108,29 @@ type writeRequest struct {
 	// How many decimal digits after point must be left before sending the writeRequest to fq.
 	roundDigits int
 
-	wr prompb.WriteRequest
+	wr prompbmarshal.WriteRequest
 
-	tss     []prompb.TimeSeries
-	mms     []prompb.MetricMetadata
-	labels  []prompb.Label
-	samples []prompb.Sample
+	tss     []prompbmarshal.TimeSeries
+	labels  []prompbmarshal.Label
+	samples []prompbmarshal.Sample
 
 	// buf holds labels data
 	buf []byte
-	// metadatabuf holds metadata data
-	metadatabuf []byte
 }
 
 func (wr *writeRequest) reset() {
 	// Do not reset lastFlushTime, fq, isVMRemoteWrite, significantFigures and roundDigits, since they are reused.
 
 	wr.wr.Timeseries = nil
-	wr.wr.Metadata = nil
 
 	clear(wr.tss)
 	wr.tss = wr.tss[:0]
 
-	clear(wr.mms)
-	wr.mms = wr.mms[:0]
-
 	promrelabel.CleanLabels(wr.labels)
 	wr.labels = wr.labels[:0]
 
 	wr.samples = wr.samples[:0]
 	wr.buf = wr.buf[:0]
-	wr.metadatabuf = wr.metadatabuf[:0]
 }
 
 // mustFlushOnStop force pushes wr data into wr.fq
@@ -150,7 +138,6 @@ func (wr *writeRequest) reset() {
 // This is needed in order to properly save in-memory data to persistent queue on graceful shutdown.
 func (wr *writeRequest) mustFlushOnStop() {
 	wr.wr.Timeseries = wr.tss
-	wr.wr.Metadata = wr.mms
 	if !tryPushWriteRequest(&wr.wr, wr.mustWriteBlock, wr.isVMRemoteWrite.Load()) {
 		logger.Panicf("BUG: final flush must always return true")
 	}
@@ -164,7 +151,6 @@ func (wr *writeRequest) mustWriteBlock(block []byte) bool {
 
 func (wr *writeRequest) tryFlush() bool {
 	wr.wr.Timeseries = wr.tss
-	wr.wr.Metadata = wr.mms
 	wr.lastFlushTime.Store(fasttime.UnixTimestamp())
 	if !tryPushWriteRequest(&wr.wr, wr.fq.TryWriteBlock, wr.isVMRemoteWrite.Load()) {
 		return false
@@ -173,7 +159,7 @@ func (wr *writeRequest) tryFlush() bool {
 	return true
 }
 
-func adjustSampleValues(samples []prompb.Sample, significantFigures, roundDigits int) {
+func adjustSampleValues(samples []prompbmarshal.Sample, significantFigures, roundDigits int) {
 	if n := significantFigures; n > 0 {
 		for i := range samples {
 			s := &samples[i]
@@ -188,52 +174,7 @@ func adjustSampleValues(samples []prompb.Sample, significantFigures, roundDigits
 	}
 }
 
-func (wr *writeRequest) tryPushMetadata(mms []prompb.MetricMetadata) bool {
-	mmdDst := wr.mms
-	maxMetadataPerBlock := *maxMetadataPerBlock
-	for i := range mms {
-		if len(wr.mms) >= maxMetadataPerBlock {
-			if !wr.tryFlush() {
-				return false
-			}
-			mmdDst = wr.mms
-		}
-		mmSrc := &mms[i]
-		mmdDst = append(mmdDst, prompb.MetricMetadata{})
-		wr.copyMetadata(&mmdDst[len(mmdDst)-1], mmSrc)
-	}
-	wr.mms = mmdDst
-	return true
-}
-
-func (wr *writeRequest) copyMetadata(dst, src *prompb.MetricMetadata) {
-	// Direct copy for non-string fields, which are safe by value.
-	dst.Type = src.Type
-	dst.Unit = src.Unit
-
-	dst.AccountID = src.AccountID
-	dst.ProjectID = src.ProjectID
-
-	// Pre-allocate memory for all string fields.
-	neededBufLen := len(src.MetricFamilyName) + len(src.Help)
-	bufLen := len(wr.metadatabuf)
-	wr.metadatabuf = slicesutil.SetLength(wr.metadatabuf, bufLen+neededBufLen)
-	buf := wr.metadatabuf[:bufLen]
-
-	// Copy MetricFamilyName
-	bufLen = len(buf)
-	buf = append(buf, src.MetricFamilyName...)
-	dst.MetricFamilyName = bytesutil.ToUnsafeString(buf[bufLen:])
-
-	// Copy Help
-	bufLen = len(buf)
-	buf = append(buf, src.Help...)
-	dst.Help = bytesutil.ToUnsafeString(buf[bufLen:])
-
-	wr.metadatabuf = buf
-}
-
-func (wr *writeRequest) tryPushTimeSeries(src []prompb.TimeSeries) bool {
+func (wr *writeRequest) tryPush(src []prompbmarshal.TimeSeries) bool {
 	tssDst := wr.tss
 	maxSamplesPerBlock := *maxRowsPerBlock
 	// Allow up to 10x of labels per each block on average.
@@ -248,7 +189,7 @@ func (wr *writeRequest) tryPushTimeSeries(src []prompb.TimeSeries) bool {
 		}
 		tsSrc := &src[i]
 		adjustSampleValues(tsSrc.Samples, wr.significantFigures, wr.roundDigits)
-		tssDst = append(tssDst, prompb.TimeSeries{})
+		tssDst = append(tssDst, prompbmarshal.TimeSeries{})
 		wr.copyTimeSeries(&tssDst[len(tssDst)-1], tsSrc)
 	}
 
@@ -256,7 +197,7 @@ func (wr *writeRequest) tryPushTimeSeries(src []prompb.TimeSeries) bool {
 	return true
 }
 
-func (wr *writeRequest) copyTimeSeries(dst, src *prompb.TimeSeries) {
+func (wr *writeRequest) copyTimeSeries(dst, src *prompbmarshal.TimeSeries) {
 	labelsSrc := src.Labels
 
 	// Pre-allocate memory for labels.
@@ -299,8 +240,8 @@ func (wr *writeRequest) copyTimeSeries(dst, src *prompb.TimeSeries) {
 // marshalConcurrency limits the maximum number of concurrent workers, which marshal and compress WriteRequest.
 var marshalConcurrencyCh = make(chan struct{}, cgroup.AvailableCPUs())
 
-func tryPushWriteRequest(wr *prompb.WriteRequest, tryPushBlock func(block []byte) bool, isVMRemoteWrite bool) bool {
-	if wr.IsEmpty() {
+func tryPushWriteRequest(wr *prompbmarshal.WriteRequest, tryPushBlock func(block []byte) bool, isVMRemoteWrite bool) bool {
+	if len(wr.Timeseries) == 0 {
 		// Nothing to push
 		return true
 	}
@@ -326,7 +267,6 @@ func tryPushWriteRequest(wr *prompb.WriteRequest, tryPushBlock func(block []byte
 			compressBufPool.Put(zb)
 			if ok {
 				blockSizeRows.Update(float64(len(wr.Timeseries)))
-				blockMetadataRows.Update(float64(len(wr.Metadata)))
 				blockSizeBytes.Update(float64(zbLen))
 			}
 			return ok
@@ -338,86 +278,47 @@ func tryPushWriteRequest(wr *prompb.WriteRequest, tryPushBlock func(block []byte
 		<-marshalConcurrencyCh
 	}
 
-	// Split timeseries or metadata into two smaller blocks
-	switch len(wr.Timeseries) {
-	case 0:
-		if len(wr.Metadata) == 1 {
-			logger.Warnf("dropping a metadata exceeding -remoteWrite.maxBlockSize=%d bytes", maxUnpackedBlockSize.N)
-			return true
-		}
-		metadata := wr.Metadata
-		n := len(metadata) / 2
-		wr.Metadata = metadata[:n]
-		if !tryPushWriteRequest(wr, tryPushBlock, isVMRemoteWrite) {
-			wr.Metadata = metadata
-			return false
-		}
-		wr.Metadata = metadata[n:]
-		if !tryPushWriteRequest(wr, tryPushBlock, isVMRemoteWrite) {
-			wr.Metadata = metadata
-			return false
-		}
-		wr.Metadata = metadata
-		return true
-
-	case 1:
-		// A single time series left. Recursively split its samples and metadata into smaller parts if possible.
+	// Too big block. Recursively split it into smaller parts if possible.
+	if len(wr.Timeseries) == 1 {
+		// A single time series left. Recursively split its samples into smaller parts if possible.
 		samples := wr.Timeseries[0].Samples
-		metaData := wr.Metadata
-		if len(samples) == 1 && len(metaData) <= 1 {
-			logger.Warnf("dropping a sample for metric and %d metadata which are exceeding -remoteWrite.maxBlockSize=%d bytes", len(metaData), maxUnpackedBlockSize.N)
+		if len(samples) == 1 {
+			logger.Warnf("dropping a sample for metric with too long labels exceeding -remoteWrite.maxBlockSize=%d bytes", maxUnpackedBlockSize.N)
 			return true
 		}
 		n := len(samples) / 2
-		m := len(metaData) / 2
 		wr.Timeseries[0].Samples = samples[:n]
-		wr.Metadata = metaData[:m]
 		if !tryPushWriteRequest(wr, tryPushBlock, isVMRemoteWrite) {
 			wr.Timeseries[0].Samples = samples
-			wr.Metadata = metaData
 			return false
 		}
 		wr.Timeseries[0].Samples = samples[n:]
-		wr.Metadata = metaData[m:]
 		if !tryPushWriteRequest(wr, tryPushBlock, isVMRemoteWrite) {
 			wr.Timeseries[0].Samples = samples
-			wr.Metadata = metaData
 			return false
 		}
 		wr.Timeseries[0].Samples = samples
-		wr.Metadata = metaData
-		return true
-
-	default:
-		// Split both timeseries and metadata.
-		timeseries := wr.Timeseries
-		metaData := wr.Metadata
-		n := len(timeseries) / 2
-		m := len(metaData) / 2
-		wr.Timeseries = timeseries[:n]
-		wr.Metadata = metaData[:m]
-		if !tryPushWriteRequest(wr, tryPushBlock, isVMRemoteWrite) {
-			wr.Timeseries = timeseries
-			wr.Metadata = metaData
-			return false
-		}
-		wr.Timeseries = timeseries[n:]
-		wr.Metadata = metaData[m:]
-		if !tryPushWriteRequest(wr, tryPushBlock, isVMRemoteWrite) {
-			wr.Timeseries = timeseries
-			wr.Metadata = metaData
-			return false
-		}
-		wr.Timeseries = timeseries
-		wr.Metadata = metaData
 		return true
 	}
+	timeseries := wr.Timeseries
+	n := len(timeseries) / 2
+	wr.Timeseries = timeseries[:n]
+	if !tryPushWriteRequest(wr, tryPushBlock, isVMRemoteWrite) {
+		wr.Timeseries = timeseries
+		return false
+	}
+	wr.Timeseries = timeseries[n:]
+	if !tryPushWriteRequest(wr, tryPushBlock, isVMRemoteWrite) {
+		wr.Timeseries = timeseries
+		return false
+	}
+	wr.Timeseries = timeseries
+	return true
 }
 
 var (
-	blockSizeBytes    = metrics.NewHistogram(`vmagent_remotewrite_block_size_bytes`)
-	blockSizeRows     = metrics.NewHistogram(`vmagent_remotewrite_block_size_rows`)
-	blockMetadataRows = metrics.NewHistogram(`vmagent_remotewrite_block_metadata_rows`)
+	blockSizeBytes = metrics.NewHistogram(`vmagent_remotewrite_block_size_bytes`)
+	blockSizeRows  = metrics.NewHistogram(`vmagent_remotewrite_block_size_rows`)
 )
 
 var (

app/vmagent/remotewrite/pendingseries_test.go

@@ -5,7 +5,7 @@ import (
 	"math"
 	"testing"
 
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 )
 
 func TestPushWriteRequest(t *testing.T) {
@@ -49,19 +49,19 @@ func testPushWriteRequest(t *testing.T, rowsCount, expectedBlockLenProm, expecte
 	f(true, expectedBlockLenVM, 15)
 }
 
-func newTestWriteRequest(seriesCount, labelsCount int) *prompb.WriteRequest {
-	var wr prompb.WriteRequest
-	for i := range seriesCount {
-		var labels []prompb.Label
-		for j := range labelsCount {
-			labels = append(labels, prompb.Label{
+func newTestWriteRequest(seriesCount, labelsCount int) *prompbmarshal.WriteRequest {
+	var wr prompbmarshal.WriteRequest
+	for i := 0; i < seriesCount; i++ {
+		var labels []prompbmarshal.Label
+		for j := 0; j < labelsCount; j++ {
+			labels = append(labels, prompbmarshal.Label{
 				Name:  fmt.Sprintf("label_%d_%d", i, j),
 				Value: fmt.Sprintf("value_%d_%d", i, j),
 			})
 		}
-		wr.Timeseries = append(wr.Timeseries, prompb.TimeSeries{
+		wr.Timeseries = append(wr.Timeseries, prompbmarshal.TimeSeries{
 			Labels: labels,
-			Samples: []prompb.Sample{
+			Samples: []prompbmarshal.Sample{
 				{
 					Value:     float64(i),
 					Timestamp: 1000 * int64(i),

app/vmagent/remotewrite/relabel.go

@@ -3,24 +3,22 @@ package remotewrite
 import (
 	"flag"
 	"fmt"
-	"io"
 	"strconv"
 	"strings"
 	"sync"
-	"sync/atomic"
-
-	"github.com/VictoriaMetrics/metrics"
-	"gopkg.in/yaml.v2"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fasttime"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
+
+	"github.com/VictoriaMetrics/metrics"
 )
 
 var (
-	unparsedLabelsGlobal    = flagutil.NewArrayString("remoteWrite.label", "Optional label in the form 'name=value' to add to all the metrics before sending them to all -remoteWrite.url.")
+	unparsedLabelsGlobal = flagutil.NewArrayString("remoteWrite.label", "Optional label in the form 'name=value' to add to all the metrics before sending them to -remoteWrite.url. "+
+		"Pass multiple -remoteWrite.label flags in order to add multiple labels to metrics before sending them to remote storage")
 	relabelConfigPathGlobal = flag.String("remoteWrite.relabelConfig", "", "Optional path to file with relabeling configs, which are applied "+
 		"to all the metrics before sending them to -remoteWrite.url. See also -remoteWrite.urlRelabelConfig. "+
 		"The path can point either to local file or to http url. "+
@@ -34,12 +32,9 @@ var (
 		"See https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels")
 )
 
+var labelsGlobal []prompbmarshal.Label
+
 var (
-	labelsGlobal []prompb.Label
-
-	remoteWriteRelabelConfigData    atomic.Pointer[[]byte]
-	remoteWriteURLRelabelConfigData atomic.Pointer[[]any]
-
 	relabelConfigReloads      *metrics.Counter
 	relabelConfigReloadErrors *metrics.Counter
 	relabelConfigSuccess      *metrics.Gauge
@@ -72,42 +67,6 @@ func initRelabelConfigs() {
 	}
 }
 
-// WriteRelabelConfigData writes -remoteWrite.relabelConfig contents to w
-func WriteRelabelConfigData(w io.Writer) {
-	p := remoteWriteRelabelConfigData.Load()
-	if p == nil {
-		// Nothing to write to w
-		return
-	}
-	_, _ = w.Write(*p)
-}
-
-// WriteURLRelabelConfigData writes -remoteWrite.urlRelabelConfig contents to w
-func WriteURLRelabelConfigData(w io.Writer) {
-	p := remoteWriteURLRelabelConfigData.Load()
-	if p == nil {
-		// Nothing to write to w
-		return
-	}
-	type urlRelabelCfg struct {
-		Url           string `yaml:"url"`
-		RelabelConfig any    `yaml:"relabel_config"`
-	}
-	var cs []urlRelabelCfg
-	for i, url := range *remoteWriteURLs {
-		cfgData := (*p)[i]
-		if !*showRemoteWriteURL {
-			url = fmt.Sprintf("%d:secret-url", i+1)
-		}
-		cs = append(cs, urlRelabelCfg{
-			Url:           url,
-			RelabelConfig: cfgData,
-		})
-	}
-	d, _ := yaml.Marshal(cs)
-	_, _ = w.Write(d)
-}
-
 func reloadRelabelConfigs() {
 	rcs := allRelabelConfigs.Load()
 	if !rcs.isSet() {
@@ -131,43 +90,28 @@ func reloadRelabelConfigs() {
 func loadRelabelConfigs() (*relabelConfigs, error) {
 	var rcs relabelConfigs
 	if *relabelConfigPathGlobal != "" {
-		global, rawCfg, err := promrelabel.LoadRelabelConfigs(*relabelConfigPathGlobal)
+		global, err := promrelabel.LoadRelabelConfigs(*relabelConfigPathGlobal)
 		if err != nil {
 			return nil, fmt.Errorf("cannot load -remoteWrite.relabelConfig=%q: %w", *relabelConfigPathGlobal, err)
 		}
-		remoteWriteRelabelConfigData.Store(&rawCfg)
 		rcs.global = global
 	}
-
 	if len(*relabelConfigPaths) > len(*remoteWriteURLs) {
 		return nil, fmt.Errorf("too many -remoteWrite.urlRelabelConfig args: %d; it mustn't exceed the number of -remoteWrite.url args: %d",
 			len(*relabelConfigPaths), (len(*remoteWriteURLs)))
 	}
-
-	var urlRelabelCfgs []any
 	rcs.perURL = make([]*promrelabel.ParsedConfigs, len(*remoteWriteURLs))
 	for i, path := range *relabelConfigPaths {
 		if len(path) == 0 {
-			urlRelabelCfgs = append(urlRelabelCfgs, nil)
+			// Skip empty relabel config.
 			continue
 		}
-		prc, rawCfg, err := promrelabel.LoadRelabelConfigs(path)
+		prc, err := promrelabel.LoadRelabelConfigs(path)
 		if err != nil {
 			return nil, fmt.Errorf("cannot load relabel configs from -remoteWrite.urlRelabelConfig=%q: %w", path, err)
 		}
 		rcs.perURL[i] = prc
-
-		var parsedCfg any
-		_ = yaml.Unmarshal(rawCfg, &parsedCfg)
-		urlRelabelCfgs = append(urlRelabelCfgs, parsedCfg)
 	}
-	if len(*remoteWriteURLs) > len(*relabelConfigPaths) {
-		// fill the urlRelabelCfgs with empty relabel configs if not set
-		for i := len(*relabelConfigPaths); i < len(*remoteWriteURLs); i++ {
-			urlRelabelCfgs = append(urlRelabelCfgs, nil)
-		}
-	}
-	remoteWriteURLRelabelConfigData.Store(&urlRelabelCfgs)
 	return &rcs, nil
 }
 
@@ -176,9 +120,19 @@ type relabelConfigs struct {
 	perURL []*promrelabel.ParsedConfigs
 }
 
-// isSet indicates whether (global or per-URL) command-line flags is set
 func (rcs *relabelConfigs) isSet() bool {
-	return *relabelConfigPathGlobal != "" || len(*relabelConfigPaths) > 0
+	if rcs == nil {
+		return false
+	}
+	if rcs.global.Len() > 0 {
+		return true
+	}
+	for _, pc := range rcs.perURL {
+		if pc.Len() > 0 {
+			return true
+		}
+	}
+	return false
 }
 
 // initLabelsGlobal must be called after parsing command-line flags.
@@ -192,14 +146,14 @@ func initLabelsGlobal() {
 		if n < 0 {
 			logger.Fatalf("missing '=' in `-remoteWrite.label`. It must contain label in the form `name=value`; got %q", s)
 		}
-		labelsGlobal = append(labelsGlobal, prompb.Label{
+		labelsGlobal = append(labelsGlobal, prompbmarshal.Label{
 			Name:  s[:n],
 			Value: s[n+1:],
 		})
 	}
 }
 
-func (rctx *relabelCtx) applyRelabeling(tss []prompb.TimeSeries, pcs *promrelabel.ParsedConfigs) []prompb.TimeSeries {
+func (rctx *relabelCtx) applyRelabeling(tss []prompbmarshal.TimeSeries, pcs *promrelabel.ParsedConfigs) []prompbmarshal.TimeSeries {
 	if pcs.Len() == 0 && !*usePromCompatibleNaming {
 		// Nothing to change.
 		return tss
@@ -220,7 +174,7 @@ func (rctx *relabelCtx) applyRelabeling(tss []prompb.TimeSeries, pcs *promrelabe
 		if *usePromCompatibleNaming {
 			fixPromCompatibleNaming(labels[labelsLen:])
 		}
-		tssDst = append(tssDst, prompb.TimeSeries{
+		tssDst = append(tssDst, prompbmarshal.TimeSeries{
 			Labels:  labels[labelsLen:],
 			Samples: ts.Samples,
 		})
@@ -229,7 +183,7 @@ func (rctx *relabelCtx) applyRelabeling(tss []prompb.TimeSeries, pcs *promrelabe
 	return tssDst
 }
 
-func (rctx *relabelCtx) appendExtraLabels(tss []prompb.TimeSeries, extraLabels []prompb.Label) {
+func (rctx *relabelCtx) appendExtraLabels(tss []prompbmarshal.TimeSeries, extraLabels []prompbmarshal.Label) {
 	if len(extraLabels) == 0 {
 		return
 	}
@@ -253,7 +207,7 @@ func (rctx *relabelCtx) appendExtraLabels(tss []prompb.TimeSeries, extraLabels [
 	rctx.labels = labels
 }
 
-func (rctx *relabelCtx) tenantToLabels(tss []prompb.TimeSeries, accountID, projectID uint32) {
+func (rctx *relabelCtx) tenantToLabels(tss []prompbmarshal.TimeSeries, accountID, projectID uint32) {
 	rctx.reset()
 	accountIDStr := strconv.FormatUint(uint64(accountID), 10)
 	projectIDStr := strconv.FormatUint(uint64(projectID), 10)
@@ -268,11 +222,11 @@ func (rctx *relabelCtx) tenantToLabels(tss []prompb.TimeSeries, accountID, proje
 			}
 			labels = append(labels, label)
 		}
-		labels = append(labels, prompb.Label{
+		labels = append(labels, prompbmarshal.Label{
 			Name:  "vm_account_id",
 			Value: accountIDStr,
 		})
-		labels = append(labels, prompb.Label{
+		labels = append(labels, prompbmarshal.Label{
 			Name:  "vm_project_id",
 			Value: projectIDStr,
 		})
@@ -283,7 +237,7 @@ func (rctx *relabelCtx) tenantToLabels(tss []prompb.TimeSeries, accountID, proje
 
 type relabelCtx struct {
 	// pool for labels, which are used during the relabeling.
-	labels []prompb.Label
+	labels []prompbmarshal.Label
 }
 
 func (rctx *relabelCtx) reset() {
@@ -306,7 +260,7 @@ func putRelabelCtx(rctx *relabelCtx) {
 	relabelCtxPool.Put(rctx)
 }
 
-func fixPromCompatibleNaming(labels []prompb.Label) {
+func fixPromCompatibleNaming(labels []prompbmarshal.Label) {
 	// Replace unsupported Prometheus chars in label names and metric names with underscores.
 	for i := range labels {
 		label := &labels[i]

app/vmagent/remotewrite/relabel_test.go

@@ -4,7 +4,7 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutil"
 )
@@ -39,7 +39,7 @@ func TestApplyRelabeling(t *testing.T) {
 }
 
 func TestAppendExtraLabels(t *testing.T) {
-	f := func(extraLabels []prompb.Label, sTss, sExpTss string) {
+	f := func(extraLabels []prompbmarshal.Label, sTss, sExpTss string) {
 		t.Helper()
 		rctx := &relabelCtx{}
 		tss, expTss := parseSeries(sTss), parseSeries(sExpTss)
@@ -50,19 +50,19 @@ func TestAppendExtraLabels(t *testing.T) {
 	}
 
 	f(nil, "up", "up")
-	f([]prompb.Label{{Name: "foo", Value: "bar"}}, "up", `up{foo="bar"}`)
-	f([]prompb.Label{{Name: "foo", Value: "bar"}}, `up{foo="baz"}`, `up{foo="bar"}`)
-	f([]prompb.Label{{Name: "baz", Value: "qux"}}, `up{foo="baz"}`, `up{foo="baz",baz="qux"}`)
+	f([]prompbmarshal.Label{{Name: "foo", Value: "bar"}}, "up", `up{foo="bar"}`)
+	f([]prompbmarshal.Label{{Name: "foo", Value: "bar"}}, `up{foo="baz"}`, `up{foo="bar"}`)
+	f([]prompbmarshal.Label{{Name: "baz", Value: "qux"}}, `up{foo="baz"}`, `up{foo="baz",baz="qux"}`)
 
 	oldVal := *usePromCompatibleNaming
 	*usePromCompatibleNaming = true
-	f([]prompb.Label{{Name: "foo.bar", Value: "baz"}}, "up", `up{foo.bar="baz"}`)
+	f([]prompbmarshal.Label{{Name: "foo.bar", Value: "baz"}}, "up", `up{foo.bar="baz"}`)
 	*usePromCompatibleNaming = oldVal
 }
 
-func parseSeries(data string) []prompb.TimeSeries {
-	var tss []prompb.TimeSeries
-	tss = append(tss, prompb.TimeSeries{
+func parseSeries(data string) []prompbmarshal.TimeSeries {
+	var tss []prompbmarshal.TimeSeries
+	tss = append(tss, prompbmarshal.TimeSeries{
 		Labels: promutil.MustNewLabelsFromString(data).GetLabels(),
 	})
 	return tss

app/vmagent/remotewrite/remotewrite.go

@@ -3,7 +3,6 @@ package remotewrite
 import (
 	"flag"
 	"fmt"
-	"math"
 	"net/http"
 	"net/url"
 	"path/filepath"
@@ -12,10 +11,6 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/cespare/xxhash/v2"
-
-	"github.com/VictoriaMetrics/metrics"
-
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bloomfilter"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
@@ -28,14 +23,14 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/memory"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/persistentqueue"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/procutil"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prommetadata"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/ratelimiter"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/slicesutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/streamaggr"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/timeserieslimits"
+	"github.com/VictoriaMetrics/metrics"
+	"github.com/cespare/xxhash/v2"
 )
 
 var (
@@ -63,7 +58,7 @@ var (
 		"See also -remoteWrite.maxDiskUsagePerURL and -remoteWrite.disableOnDiskQueue")
 	keepDanglingQueues = flag.Bool("remoteWrite.keepDanglingQueues", false, "Keep persistent queues contents at -remoteWrite.tmpDataPath in case there are no matching -remoteWrite.url. "+
 		"Useful when -remoteWrite.url is changed temporarily and persistent queue files will be needed later on.")
-	queues = flagutil.NewArrayInt("remoteWrite.queues", cgroup.AvailableCPUs()*2, "The number of concurrent queues to each -remoteWrite.url. Set more queues if default number of queues "+
+	queues = flag.Int("remoteWrite.queues", cgroup.AvailableCPUs()*2, "The number of concurrent queues to each -remoteWrite.url. Set more queues if default number of queues "+
 		"isn't enough for sending high volume of collected data to remote storage. "+
 		"Default value depends on the number of available CPU cores. It should work fine in most cases since it minimizes resource usage")
 	showRemoteWriteURL = flag.Bool("remoteWrite.showURL", false, "Whether to show -remoteWrite.url in the exported metrics. "+
@@ -84,14 +79,10 @@ var (
 		`This may be needed for reducing memory usage at remote storage when the order of labels in incoming samples is random. `+
 		`For example, if m{k1="v1",k2="v2"} may be sent as m{k2="v2",k1="v1"}`+
 		`Enabled sorting for labels can slow down ingestion performance a bit`)
-	maxHourlySeries = flag.Int64("remoteWrite.maxHourlySeries", 0, "The maximum number of unique series vmagent can send to remote storage systems during the last hour. "+
-		"Excess series are logged and dropped. This can be useful for limiting series cardinality. "+
-		fmt.Sprintf("Setting this flag to '-1' sets limit to maximum possible value (%d) which is useful in order to enable series tracking without enforcing limits. ", math.MaxInt32)+
-		"See https://docs.victoriametrics.com/victoriametrics/vmagent/#cardinality-limiter")
-	maxDailySeries = flag.Int64("remoteWrite.maxDailySeries", 0, "The maximum number of unique series vmagent can send to remote storage systems during the last 24 hours. "+
-		"Excess series are logged and dropped. This can be useful for limiting series churn rate. "+
-		fmt.Sprintf("Setting this flag to '-1' sets limit to maximum possible value (%d) which is useful in order to enable series tracking without enforcing limits. ", math.MaxInt32)+
-		"See https://docs.victoriametrics.com/victoriametrics/vmagent/#cardinality-limiter")
+	maxHourlySeries = flag.Int("remoteWrite.maxHourlySeries", 0, "The maximum number of unique series vmagent can send to remote storage systems during the last hour. "+
+		"Excess series are logged and dropped. This can be useful for limiting series cardinality. See https://docs.victoriametrics.com/victoriametrics/vmagent/#cardinality-limiter")
+	maxDailySeries = flag.Int("remoteWrite.maxDailySeries", 0, "The maximum number of unique series vmagent can send to remote storage systems during the last 24 hours. "+
+		"Excess series are logged and dropped. This can be useful for limiting series churn rate. See https://docs.victoriametrics.com/victoriametrics/vmagent/#cardinality-limiter")
 	maxIngestionRate = flag.Int("maxIngestionRate", 0, "The maximum number of samples vmagent can receive per second. Data ingestion is paused when the limit is exceeded. "+
 		"By default there are no limits on samples ingestion rate. See also -remoteWrite.rateLimit")
 
@@ -100,8 +91,6 @@ var (
 		"See https://docs.victoriametrics.com/victoriametrics/vmagent/#disabling-on-disk-persistence . See also -remoteWrite.dropSamplesOnOverload")
 	dropSamplesOnOverload = flag.Bool("remoteWrite.dropSamplesOnOverload", false, "Whether to drop samples when -remoteWrite.disableOnDiskQueue is set and if the samples "+
 		"cannot be pushed into the configured -remoteWrite.url systems in a timely manner. See https://docs.victoriametrics.com/victoriametrics/vmagent/#disabling-on-disk-persistence")
-	disableMetadataPerURL = flagutil.NewArrayBool("remoteWrite.disableMetadata", "Whether to disable sending metadata to the corresponding -remoteWrite.url. "+
-		"By default, metadata sending is controlled by the global -enableMetadata flag")
 )
 
 var (
@@ -151,8 +140,6 @@ func InitSecretFlags() {
 		// remoteWrite.url can contain authentication codes, so hide it at `/metrics` output.
 		flagutil.RegisterSecretFlag("remoteWrite.url")
 	}
-	// remoteWrite.headers can contain auth headers such as Authorization and API keys.
-	flagutil.RegisterSecretFlag("remoteWrite.headers")
 }
 
 var (
@@ -169,20 +156,8 @@ func Init() {
 	if len(*remoteWriteURLs) == 0 {
 		logger.Fatalf("at least one `-remoteWrite.url` command-line flag must be set")
 	}
-	if *shardByURL && len(*disableOnDiskQueue) > 1 {
-		disableOnDiskQueues := *disableOnDiskQueue
-
-		firstValue := disableOnDiskQueues[0]
-		for _, v := range disableOnDiskQueues[1:] {
-			if firstValue != v {
-				logger.Fatalf("all -remoteWrite.url targets must have the same -remoteWrite.disableOnDiskQueue setting when -remoteWrite.shardByURL is enabled; " +
-					"either enable or disable -remoteWrite.disableOnDiskQueue for all targets")
-			}
-		}
-	}
-
-	if limit := getMaxHourlySeries(); limit > 0 {
-		hourlySeriesLimiter = bloomfilter.NewLimiter(limit, time.Hour)
+	if *maxHourlySeries > 0 {
+		hourlySeriesLimiter = bloomfilter.NewLimiter(*maxHourlySeries, time.Hour)
 		_ = metrics.NewGauge(`vmagent_hourly_series_limit_max_series`, func() float64 {
 			return float64(hourlySeriesLimiter.MaxItems())
 		})
@@ -190,8 +165,8 @@ func Init() {
 			return float64(hourlySeriesLimiter.CurrentItems())
 		})
 	}
-	if limit := getMaxDailySeries(); limit > 0 {
-		dailySeriesLimiter = bloomfilter.NewLimiter(limit, 24*time.Hour)
+	if *maxDailySeries > 0 {
+		dailySeriesLimiter = bloomfilter.NewLimiter(*maxDailySeries, 24*time.Hour)
 		_ = metrics.NewGauge(`vmagent_daily_series_limit_max_series`, func() float64 {
 			return float64(dailySeriesLimiter.MaxItems())
 		})
@@ -200,6 +175,13 @@ func Init() {
 		})
 	}
 
+	if *queues > maxQueues {
+		*queues = maxQueues
+	}
+	if *queues <= 0 {
+		*queues = 1
+	}
+
 	if len(*shardByURLLabels) > 0 && len(*shardByURLIgnoreLabels) > 0 {
 		logger.Fatalf("-remoteWrite.shardByURL.labels and -remoteWrite.shardByURL.ignoreLabels cannot be set simultaneously; " +
 			"see https://docs.victoriametrics.com/victoriametrics/vmagent/#sharding-among-remote-storages")
@@ -227,12 +209,14 @@ func Init() {
 	// In this case it is impossible to prevent from sending many duplicates of samples passed to TryPush() to all the configured -remoteWrite.url
 	// if these samples couldn't be sent to the -remoteWrite.url with the disabled persistent queue. So it is better sending samples
 	// to the remaining -remoteWrite.url and dropping them on the blocked queue.
-	dropSamplesOnFailureGlobal = *dropSamplesOnOverload || disableOnDiskQueueAny && len(*remoteWriteURLs) > 1
+	dropSamplesOnFailureGlobal = *dropSamplesOnOverload || disableOnDiskQueueAny && len(disableOnDiskQueues) > 1
 
 	dropDanglingQueues()
 
 	// Start config reloader.
-	configReloaderWG.Go(func() {
+	configReloaderWG.Add(1)
+	go func() {
+		defer configReloaderWG.Done()
 		for {
 			select {
 			case <-configReloaderStopCh:
@@ -242,7 +226,7 @@ func Init() {
 			reloadRelabelConfigs()
 			reloadStreamAggrConfigs()
 		}
-	})
+	}()
 }
 
 func dropDanglingQueues() {
@@ -269,7 +253,7 @@ func dropDanglingQueues() {
 		if _, ok := existingQueues[dirname]; !ok {
 			logger.Infof("removing dangling queue %q", dirname)
 			fullPath := filepath.Join(queuesDir, dirname)
-			fs.MustRemoveDir(fullPath)
+			fs.MustRemoveAll(fullPath)
 			removed++
 		}
 	}
@@ -282,6 +266,17 @@ func initRemoteWriteCtxs(urls []string) {
 	if len(urls) == 0 {
 		logger.Panicf("BUG: urls must be non-empty")
 	}
+
+	maxInmemoryBlocks := memory.Allowed() / len(urls) / *maxRowsPerBlock / 100
+	if maxInmemoryBlocks / *queues > 100 {
+		// There is no much sense in keeping higher number of blocks in memory,
+		// since this means that the producer outperforms consumer and the queue
+		// will continue growing. It is better storing the queue to file.
+		maxInmemoryBlocks = 100 * *queues
+	}
+	if maxInmemoryBlocks < 2 {
+		maxInmemoryBlocks = 2
+	}
 	rwctxs := make([]*remoteWriteCtx, len(urls))
 	rwctxIdx := make([]int, len(urls))
 	if retryMaxTime.String() != "" {
@@ -296,10 +291,9 @@ func initRemoteWriteCtxs(urls []string) {
 		if *showRemoteWriteURL {
 			sanitizedURL = fmt.Sprintf("%d:%s", i+1, remoteWriteURL)
 		}
-		rwctxs[i] = newRemoteWriteCtx(i, remoteWriteURL, sanitizedURL)
+		rwctxs[i] = newRemoteWriteCtx(i, remoteWriteURL, maxInmemoryBlocks, sanitizedURL)
 		rwctxIdx[i] = i
 	}
-	fs.RegisterPathFsMetrics(*tmpDataPath)
 
 	if *shardByURL {
 		consistentHashNodes := make([]string, 0, len(urls))
@@ -378,7 +372,7 @@ func Stop() {
 // PushDropSamplesOnFailure drops wr samples if they cannot be sent to -remoteWrite.url by any reason.
 //
 // PushDropSamplesOnFailure can modify wr contents.
-func PushDropSamplesOnFailure(at *auth.Token, wr *prompb.WriteRequest) {
+func PushDropSamplesOnFailure(at *auth.Token, wr *prompbmarshal.WriteRequest) {
 	_ = tryPush(at, wr, true)
 }
 
@@ -388,13 +382,19 @@ func PushDropSamplesOnFailure(at *auth.Token, wr *prompb.WriteRequest) {
 // TryPush may send partial data from wr on unsuccessful attempt, so repeated call for the same wr may send the data multiple times.
 //
 // The caller must return ErrQueueFullHTTPRetry to the client, which sends wr, if TryPush returns false.
-func TryPush(at *auth.Token, wr *prompb.WriteRequest) bool {
+func TryPush(at *auth.Token, wr *prompbmarshal.WriteRequest) bool {
 	return tryPush(at, wr, dropSamplesOnFailureGlobal)
 }
 
-func tryPush(at *auth.Token, wr *prompb.WriteRequest, forceDropSamplesOnFailure bool) bool {
+func tryPush(at *auth.Token, wr *prompbmarshal.WriteRequest, forceDropSamplesOnFailure bool) bool {
 	tss := wr.Timeseries
-	mms := wr.Metadata
+
+	var tenantRctx *relabelCtx
+	if at != nil {
+		// Convert at to (vm_account_id, vm_project_id) labels.
+		tenantRctx = getRelabelCtx()
+		defer putRelabelCtx(tenantRctx)
+	}
 
 	// Quick check whether writes to configured remote storage systems are blocked.
 	// This allows saving CPU time spent on relabeling and block compression
@@ -411,23 +411,6 @@ func tryPush(at *auth.Token, wr *prompb.WriteRequest, forceDropSamplesOnFailure
 		return true
 	}
 
-	// Push metadata separately from time series, since it doesn't need sharding,
-	// relabeling, stream aggregation, deduplication, etc.
-	if !tryPushMetadataToRemoteStorages(at, rwctxs, mms, forceDropSamplesOnFailure) {
-		return false
-	}
-
-	if len(tss) == 0 {
-		return true
-	}
-
-	var tenantRctx *relabelCtx
-	if at != nil {
-		// Convert at to (vm_account_id, vm_project_id) labels.
-		tenantRctx = getRelabelCtx()
-		defer putRelabelCtx(tenantRctx)
-	}
-
 	var rctx *relabelCtx
 	rcs := allRelabelConfigs.Load()
 	pcsGlobal := rcs.global
@@ -491,9 +474,6 @@ func tryPush(at *auth.Token, wr *prompb.WriteRequest, forceDropSamplesOnFailure
 			matchIdxs.B = sas.Push(tssBlock, matchIdxs.B)
 			if !*streamAggrGlobalKeepInput {
 				tssBlock = dropAggregatedSeries(tssBlock, matchIdxs.B, *streamAggrGlobalDropInput)
-			} else if *streamAggrGlobalDropInput {
-				// if both keep_input and drop_input are true, we keep only the aggregated series
-				tssBlock = dropUnaggregatedSeries(tssBlock, matchIdxs.B)
 			}
 			matchIdxsPool.Put(matchIdxs)
 		}
@@ -501,7 +481,7 @@ func tryPush(at *auth.Token, wr *prompb.WriteRequest, forceDropSamplesOnFailure
 			deduplicatorGlobal.Push(tssBlock)
 			tssBlock = tssBlock[:0]
 		}
-		if !tryPushTimeSeriesToRemoteStorages(rwctxs, tssBlock, forceDropSamplesOnFailure) {
+		if !tryPushBlockToRemoteStorages(rwctxs, tssBlock, forceDropSamplesOnFailure) {
 			return false
 		}
 	}
@@ -512,10 +492,8 @@ func tryPush(at *auth.Token, wr *prompb.WriteRequest, forceDropSamplesOnFailure
 // returns only the unblocked rwctx.
 //
 // calculateHealthyRwctxIdx will rely on the order of rwctx to be in ascending order.
-func getEligibleRemoteWriteCtxs(tss []prompb.TimeSeries, forceDropSamplesOnFailure bool) ([]*remoteWriteCtx, bool) {
-	// When -remoteWrite.shardByURL=true always use all configured remote writes to preserve stable metrics distribution across shards.
-	// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/10507
-	if !disableOnDiskQueueAny || *shardByURL {
+func getEligibleRemoteWriteCtxs(tss []prompbmarshal.TimeSeries, forceDropSamplesOnFailure bool) ([]*remoteWriteCtx, bool) {
+	if !disableOnDiskQueueAny {
 		return rwctxsGlobal, true
 	}
 
@@ -530,64 +508,30 @@ func getEligibleRemoteWriteCtxs(tss []prompb.TimeSeries, forceDropSamplesOnFailu
 				return nil, false
 			}
 			rowsCount := getRowsCount(tss)
+			if *shardByURL {
+				// Todo: When shardByURL is enabled, the following metrics won't be 100% accurate. Because vmagent don't know
+				// which rwctx should data be pushed to yet. Let's consider the hashing algorithm fair and will distribute
+				// data to all rwctxs evenly.
+				rowsCount = rowsCount / len(rwctxsGlobal)
+			}
 			rwctx.rowsDroppedOnPushFailure.Add(rowsCount)
 		}
 	}
 	return rwctxs, true
 }
 
-func pushTimeSeriesToRemoteStoragesTrackDropped(tss []prompb.TimeSeries) {
+func pushToRemoteStoragesTrackDropped(tss []prompbmarshal.TimeSeries) {
 	rwctxs, _ := getEligibleRemoteWriteCtxs(tss, true)
 	if len(rwctxs) == 0 {
 		return
 	}
 
-	if !tryPushTimeSeriesToRemoteStorages(rwctxs, tss, true) {
-		logger.Panicf("BUG: tryPushTimeSeriesToRemoteStorages() must return true when forceDropSamplesOnFailure=true")
+	if !tryPushBlockToRemoteStorages(rwctxs, tss, true) {
+		logger.Panicf("BUG: tryPushBlockToRemoteStorages() must return true when forceDropSamplesOnFailure=true")
 	}
 }
 
-func tryPushMetadataToRemoteStorages(at *auth.Token, rwctxs []*remoteWriteCtx, mms []prompb.MetricMetadata, forceDropSamplesOnFailure bool) bool {
-	if len(mms) == 0 {
-		// Nothing to push
-		return true
-	}
-	if at != nil {
-		for idx := range mms {
-			mm := &mms[idx]
-			mm.AccountID = at.AccountID
-			mm.ProjectID = at.ProjectID
-		}
-	}
-	// Do not shard metadata even if -remoteWrite.shardByURL is set, just replicate it among rwctxs.
-	// Since metadata is usually small and there is no guarantee that metadata can be sent to
-	// the same remote storage with the corresponding metrics.
-	//
-	// Push metadata to remote storage systems in parallel to reduce
-	// the time needed for sending the data to multiple remote storage systems.
-	var wg sync.WaitGroup
-	var anyPushFailed atomic.Bool
-	for _, rwctx := range rwctxs {
-		if !rwctx.enableMetadata {
-			// Skip remote storage with disabled metadata
-			continue
-		}
-		wg.Go(func() {
-			if !rwctx.tryPushMetadataInternal(mms) {
-				rwctx.pushFailures.Inc()
-				if forceDropSamplesOnFailure {
-					rwctx.metadataDroppedOnPushFailure.Add(len(mms))
-					return
-				}
-				anyPushFailed.Store(true)
-			}
-		})
-	}
-	wg.Wait()
-	return !anyPushFailed.Load()
-}
-
-func tryPushTimeSeriesToRemoteStorages(rwctxs []*remoteWriteCtx, tssBlock []prompb.TimeSeries, forceDropSamplesOnFailure bool) bool {
+func tryPushBlockToRemoteStorages(rwctxs []*remoteWriteCtx, tssBlock []prompbmarshal.TimeSeries, forceDropSamplesOnFailure bool) bool {
 	if len(tssBlock) == 0 {
 		// Nothing to push
 		return true
@@ -595,7 +539,7 @@ func tryPushTimeSeriesToRemoteStorages(rwctxs []*remoteWriteCtx, tssBlock []prom
 
 	if len(rwctxs) == 1 {
 		// Fast path - just push data to the configured single remote storage
-		return rwctxs[0].TryPushTimeSeries(tssBlock, forceDropSamplesOnFailure)
+		return rwctxs[0].TryPush(tssBlock, forceDropSamplesOnFailure)
 	}
 
 	// We need to push tssBlock to multiple remote storages.
@@ -606,26 +550,28 @@ func tryPushTimeSeriesToRemoteStorages(rwctxs []*remoteWriteCtx, tssBlock []prom
 		if replicas <= 0 {
 			replicas = 1
 		}
-		return tryShardingTimeSeriesAmongRemoteStorages(rwctxs, tssBlock, replicas, forceDropSamplesOnFailure)
+		return tryShardingBlockAmongRemoteStorages(rwctxs, tssBlock, replicas, forceDropSamplesOnFailure)
 	}
 
 	// Replicate tssBlock samples among rwctxs.
-	// Push tssBlock to remote storage systems in parallel to reduce
+	// Push tssBlock to remote storage systems in parallel in order to reduce
 	// the time needed for sending the data to multiple remote storage systems.
 	var wg sync.WaitGroup
+	wg.Add(len(rwctxs))
 	var anyPushFailed atomic.Bool
 	for _, rwctx := range rwctxs {
-		wg.Go(func() {
-			if !rwctx.TryPushTimeSeries(tssBlock, forceDropSamplesOnFailure) {
+		go func(rwctx *remoteWriteCtx) {
+			defer wg.Done()
+			if !rwctx.TryPush(tssBlock, forceDropSamplesOnFailure) {
 				anyPushFailed.Store(true)
 			}
-		})
+		}(rwctx)
 	}
 	wg.Wait()
 	return !anyPushFailed.Load()
 }
 
-func tryShardingTimeSeriesAmongRemoteStorages(rwctxs []*remoteWriteCtx, tssBlock []prompb.TimeSeries, replicas int, forceDropSamplesOnFailure bool) bool {
+func tryShardingBlockAmongRemoteStorages(rwctxs []*remoteWriteCtx, tssBlock []prompbmarshal.TimeSeries, replicas int, forceDropSamplesOnFailure bool) bool {
 	x := getTSSShards(len(rwctxs))
 	defer putTSSShards(x)
 
@@ -641,11 +587,13 @@ func tryShardingTimeSeriesAmongRemoteStorages(rwctxs []*remoteWriteCtx, tssBlock
 		if len(shard) == 0 {
 			continue
 		}
-		wg.Go(func() {
-			if !rwctx.TryPushTimeSeries(shard, forceDropSamplesOnFailure) {
+		wg.Add(1)
+		go func(rwctx *remoteWriteCtx, tss []prompbmarshal.TimeSeries) {
+			defer wg.Done()
+			if !rwctx.TryPush(tss, forceDropSamplesOnFailure) {
 				anyPushFailed.Store(true)
 			}
-		})
+		}(rwctx, shard)
 	}
 	wg.Wait()
 	return !anyPushFailed.Load()
@@ -676,7 +624,7 @@ func calculateHealthyRwctxIdx(healthyRwctxs []*remoteWriteCtx) ([]int, []int) {
 }
 
 // shardAmountRemoteWriteCtx distribute time series to shards by consistent hashing.
-func shardAmountRemoteWriteCtx(tssBlock []prompb.TimeSeries, shards [][]prompb.TimeSeries, rwctxs []*remoteWriteCtx, replicas int) {
+func shardAmountRemoteWriteCtx(tssBlock []prompbmarshal.TimeSeries, shards [][]prompbmarshal.TimeSeries, rwctxs []*remoteWriteCtx, replicas int) {
 	tmpLabels := promutil.GetLabels()
 	defer promutil.PutLabels(tmpLabels)
 
@@ -709,7 +657,7 @@ func shardAmountRemoteWriteCtx(tssBlock []prompb.TimeSeries, shards [][]prompb.T
 			}
 			tmpLabels.Labels = hashLabels
 		}
-		h := getLabelsHashForShard(hashLabels)
+		h := getLabelsHash(hashLabels)
 
 		// Get the rwctxIdx through consistent hashing and then map it to the index in shards.
 		// The rwctxIdx is not always equal to the shardIdx, for example, when some rwctx are not available.
@@ -732,7 +680,7 @@ func shardAmountRemoteWriteCtx(tssBlock []prompb.TimeSeries, shards [][]prompb.T
 }
 
 type tssShards struct {
-	shards [][]prompb.TimeSeries
+	shards [][]prompbmarshal.TimeSeries
 }
 
 func getTSSShards(n int) *tssShards {
@@ -742,7 +690,7 @@ func getTSSShards(n int) *tssShards {
 	}
 	x := v.(*tssShards)
 	if cap(x.shards) < n {
-		x.shards = make([][]prompb.TimeSeries, n)
+		x.shards = make([][]prompbmarshal.TimeSeries, n)
 	}
 	x.shards = x.shards[:n]
 	return x
@@ -760,7 +708,7 @@ func putTSSShards(x *tssShards) {
 var tssShardsPool sync.Pool
 
 // sortLabelsIfNeeded sorts labels if -sortLabels command-line flag is set.
-func sortLabelsIfNeeded(tss []prompb.TimeSeries) {
+func sortLabelsIfNeeded(tss []prompbmarshal.TimeSeries) {
 	if !*sortLabels {
 		return
 	}
@@ -769,11 +717,11 @@ func sortLabelsIfNeeded(tss []prompb.TimeSeries) {
 	}
 }
 
-func limitSeriesCardinality(tss []prompb.TimeSeries) []prompb.TimeSeries {
+func limitSeriesCardinality(tss []prompbmarshal.TimeSeries) []prompbmarshal.TimeSeries {
 	if hourlySeriesLimiter == nil && dailySeriesLimiter == nil {
 		return tss
 	}
-	dst := make([]prompb.TimeSeries, 0, len(tss))
+	dst := make([]prompbmarshal.TimeSeries, 0, len(tss))
 	for i := range tss {
 		labels := tss[i].Labels
 		h := getLabelsHash(labels)
@@ -800,10 +748,7 @@ var (
 	dailySeriesLimitRowsDropped  = metrics.NewCounter(`vmagent_daily_series_limit_rows_dropped_total`)
 )
 
-// getLabelsHashForShard is a separate function from getLabelsHash because
-// it omits the '=' separator between label name and value for backward compatibility.
-// Changing it would re-shard all series across remoteWrite targets.
-func getLabelsHashForShard(labels []prompb.Label) uint64 {
+func getLabelsHash(labels []prompbmarshal.Label) uint64 {
 	bb := labelsHashBufPool.Get()
 	b := bb.B[:0]
 	for _, label := range labels {
@@ -816,28 +761,14 @@ func getLabelsHashForShard(labels []prompb.Label) uint64 {
 	return h
 }
 
-func getLabelsHash(labels []prompb.Label) uint64 {
-	bb := labelsHashBufPool.Get()
-	b := bb.B[:0]
-	for _, label := range labels {
-		b = append(b, label.Name...)
-		b = append(b, '=')
-		b = append(b, label.Value...)
-	}
-	h := xxhash.Sum64(b)
-	bb.B = b
-	labelsHashBufPool.Put(bb)
-	return h
-}
-
 var labelsHashBufPool bytesutil.ByteBufferPool
 
-func logSkippedSeries(labels []prompb.Label, flagName string, flagValue int) {
+func logSkippedSeries(labels []prompbmarshal.Label, flagName string, flagValue int) {
 	select {
 	case <-logSkippedSeriesTicker.C:
 		// Do not use logger.WithThrottler() here, since this will increase CPU usage
-		// because every call to logSkippedSeries will result to a call to prompb.LabelsToString.
-		logger.Warnf("skip series %s because %s=%d reached", prompb.LabelsToString(labels), flagName, flagValue)
+		// because every call to logSkippedSeries will result to a call to prompbmarshal.LabelsToString.
+		logger.Warnf("skip series %s because %s=%d reached", prompbmarshal.LabelsToString(labels), flagName, flagValue)
 	default:
 	}
 }
@@ -860,35 +791,17 @@ type remoteWriteCtx struct {
 	streamAggrKeepInput bool
 	streamAggrDropInput bool
 
-	// enableMetadata indicates whether metadata should be sent to this remote storage.
-	// It is determined by -remoteWrite.enableMetadata per-URL flag if set,
-	// otherwise by the global -enableMetadata flag.
-	enableMetadata bool
-
 	pss        []*pendingSeries
 	pssNextIdx atomic.Uint64
 
 	rowsPushedAfterRelabel *metrics.Counter
 	rowsDroppedByRelabel   *metrics.Counter
 
-	pushFailures                 *metrics.Counter
-	metadataDroppedOnPushFailure *metrics.Counter
-	rowsDroppedOnPushFailure     *metrics.Counter
+	pushFailures             *metrics.Counter
+	rowsDroppedOnPushFailure *metrics.Counter
 }
 
-// isMetadataEnabledForURL returns true if metadata should be sent to the remote storage at argIdx.
-// It checks the per-URL -remoteWrite.disableMetadata flag first.
-// If not set, it falls back to the global -enableMetadata flag.
-func isMetadataEnabledForURL(argIdx int) bool {
-	if disableMetadataPerURL.GetOptionalArg(argIdx) {
-		// Metadata is explicitly disabled for this URL
-		return false
-	}
-	// Use global -enableMetadata value
-	return prommetadata.IsEnabled()
-}
-
-func newRemoteWriteCtx(argIdx int, remoteWriteURL *url.URL, sanitizedURL string) *remoteWriteCtx {
+func newRemoteWriteCtx(argIdx int, remoteWriteURL *url.URL, maxInmemoryBlocks int, sanitizedURL string) *remoteWriteCtx {
 	// strip query params, otherwise changing params resets pq
 	pqURL := *remoteWriteURL
 	pqURL.RawQuery = ""
@@ -903,23 +816,6 @@ func newRemoteWriteCtx(argIdx int, remoteWriteURL *url.URL, sanitizedURL string)
 	}
 
 	isPQDisabled := disableOnDiskQueue.GetOptionalArg(argIdx)
-	queuesSize := queues.GetOptionalArg(argIdx)
-	if queuesSize > maxQueues {
-		queuesSize = maxQueues
-	} else if queuesSize <= 0 {
-		queuesSize = 1
-	}
-
-	maxInmemoryBlocks := memory.Allowed() / len(*remoteWriteURLs) / *maxRowsPerBlock / 100
-	if maxInmemoryBlocks/queuesSize > 100 {
-		// There is no much sense in keeping higher number of blocks in memory,
-		// since this means that the producer outperforms consumer and the queue
-		// will continue growing. It is better storing the queue to file.
-		maxInmemoryBlocks = 100 * queuesSize
-	}
-	if maxInmemoryBlocks < 2 {
-		maxInmemoryBlocks = 2
-	}
 	fq := persistentqueue.MustOpenFastQueue(queuePath, sanitizedURL, maxInmemoryBlocks, maxPendingBytes, isPQDisabled)
 	_ = metrics.GetOrCreateGauge(fmt.Sprintf(`vmagent_remotewrite_pending_data_bytes{path=%q, url=%q}`, queuePath, sanitizedURL), func() float64 {
 		return float64(fq.GetPendingBytes())
@@ -937,16 +833,16 @@ func newRemoteWriteCtx(argIdx int, remoteWriteURL *url.URL, sanitizedURL string)
 	var c *client
 	switch remoteWriteURL.Scheme {
 	case "http", "https":
-		c = newHTTPClient(argIdx, remoteWriteURL.String(), sanitizedURL, fq, queuesSize)
+		c = newHTTPClient(argIdx, remoteWriteURL.String(), sanitizedURL, fq, *queues)
 	default:
 		logger.Fatalf("unsupported scheme: %s for remoteWriteURL: %s, want `http`, `https`", remoteWriteURL.Scheme, sanitizedURL)
 	}
-	c.init(argIdx, queuesSize, sanitizedURL)
+	c.init(argIdx, *queues, sanitizedURL)
 
 	// Initialize pss
 	sf := significantFigures.GetOptionalArg(argIdx)
 	rd := roundDigits.GetOptionalArg(argIdx)
-	pssLen := queuesSize
+	pssLen := *queues
 	if n := cgroup.AvailableCPUs(); pssLen > n {
 		// There is no sense in running more than availableCPUs concurrent pendingSeries,
 		// since every pendingSeries can saturate up to a single CPU.
@@ -958,18 +854,16 @@ func newRemoteWriteCtx(argIdx int, remoteWriteURL *url.URL, sanitizedURL string)
 	}
 
 	rwctx := &remoteWriteCtx{
-		idx:            argIdx,
-		fq:             fq,
-		c:              c,
-		pss:            pss,
-		enableMetadata: isMetadataEnabledForURL(argIdx),
+		idx: argIdx,
+		fq:  fq,
+		c:   c,
+		pss: pss,
 
 		rowsPushedAfterRelabel: metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_rows_pushed_after_relabel_total{path=%q,url=%q}`, queuePath, sanitizedURL)),
 		rowsDroppedByRelabel:   metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_relabel_metrics_dropped_total{path=%q,url=%q}`, queuePath, sanitizedURL)),
 
-		pushFailures:                 metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_push_failures_total{path=%q,url=%q}`, queuePath, sanitizedURL)),
-		metadataDroppedOnPushFailure: metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_metadata_dropped_total{path=%q,url=%q}`, queuePath, sanitizedURL)),
-		rowsDroppedOnPushFailure:     metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_samples_dropped_total{path=%q,url=%q}`, queuePath, sanitizedURL)),
+		pushFailures:             metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_push_failures_total{path=%q,url=%q}`, queuePath, sanitizedURL)),
+		rowsDroppedOnPushFailure: metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_samples_dropped_total{path=%q,url=%q}`, queuePath, sanitizedURL)),
 	}
 	rwctx.initStreamAggrConfig()
 
@@ -1003,17 +897,17 @@ func (rwctx *remoteWriteCtx) MustStop() {
 	rwctx.rowsDroppedByRelabel = nil
 }
 
-// TryPushTimeSeries sends tss series to the configured remote write endpoint
+// TryPush sends tss series to the configured remote write endpoint
 //
-// TryPushTimeSeries doesn't modify tss, so tss can be passed concurrently to TryPush across distinct rwctx instances.
-func (rwctx *remoteWriteCtx) TryPushTimeSeries(tss []prompb.TimeSeries, forceDropSamplesOnFailure bool) bool {
+// TryPush doesn't modify tss, so tss can be passed concurrently to TryPush across distinct rwctx instances.
+func (rwctx *remoteWriteCtx) TryPush(tss []prompbmarshal.TimeSeries, forceDropSamplesOnFailure bool) bool {
 	var rctx *relabelCtx
-	var v *[]prompb.TimeSeries
+	var v *[]prompbmarshal.TimeSeries
 	defer func() {
 		if rctx == nil {
 			return
 		}
-		*v = prompb.ResetTimeSeries(tss)
+		*v = prompbmarshal.ResetTimeSeries(tss)
 		tssPool.Put(v)
 		putRelabelCtx(rctx)
 	}()
@@ -1027,7 +921,7 @@ func (rwctx *remoteWriteCtx) TryPushTimeSeries(tss []prompb.TimeSeries, forceDro
 		// from affecting time series for other remoteWrite.url configs.
 		// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/467
 		// and https://github.com/VictoriaMetrics/VictoriaMetrics/issues/599
-		v = tssPool.Get().(*[]prompb.TimeSeries)
+		v = tssPool.Get().(*[]prompbmarshal.TimeSeries)
 		tss = append(*v, tss...)
 		rowsCountBeforeRelabel := getRowsCount(tss)
 		tss = rctx.applyRelabeling(tss, pcs)
@@ -1046,21 +940,11 @@ func (rwctx *remoteWriteCtx) TryPushTimeSeries(tss []prompb.TimeSeries, forceDro
 			if rctx == nil {
 				rctx = getRelabelCtx()
 				// Make a copy of tss before dropping aggregated series
-				v = tssPool.Get().(*[]prompb.TimeSeries)
+				v = tssPool.Get().(*[]prompbmarshal.TimeSeries)
 				tss = append(*v, tss...)
 			}
 			tss = dropAggregatedSeries(tss, matchIdxs.B, rwctx.streamAggrDropInput)
-		} else if rwctx.streamAggrDropInput {
-			// if both keep_input and drop_input are true, we keep only the aggregated series
-			if rctx == nil {
-				rctx = getRelabelCtx()
-				// Make a copy of tss before dropping aggregated series
-				v = tssPool.Get().(*[]prompb.TimeSeries)
-				tss = append(*v, tss...)
-			}
-			tss = dropUnaggregatedSeries(tss, matchIdxs.B)
 		}
-
 		matchIdxsPool.Put(matchIdxs)
 	}
 	if rwctx.deduplicator != nil {
@@ -1069,7 +953,7 @@ func (rwctx *remoteWriteCtx) TryPushTimeSeries(tss []prompb.TimeSeries, forceDro
 	}
 
 	// Try pushing tss to remote storage
-	if rwctx.tryPushTimeSeriesInternal(tss) {
+	if rwctx.tryPushInternal(tss) {
 		return true
 	}
 
@@ -1083,10 +967,9 @@ func (rwctx *remoteWriteCtx) TryPushTimeSeries(tss []prompb.TimeSeries, forceDro
 	return false
 }
 
-var matchIdxsPool slicesutil.BufferPool[uint32]
+var matchIdxsPool bytesutil.ByteBufferPool
 
-// dropAggregatedSeries drops matched series, also the unmatched if dropInput is true.
-func dropAggregatedSeries(src []prompb.TimeSeries, matchIdxs []uint32, dropInput bool) []prompb.TimeSeries {
+func dropAggregatedSeries(src []prompbmarshal.TimeSeries, matchIdxs []byte, dropInput bool) []prompbmarshal.TimeSeries {
 	dst := src[:0]
 	if !dropInput {
 		for i, match := range matchIdxs {
@@ -1101,22 +984,8 @@ func dropAggregatedSeries(src []prompb.TimeSeries, matchIdxs []uint32, dropInput
 	return dst
 }
 
-// dropUnaggregatedSeries drops unmatched series.
-func dropUnaggregatedSeries(src []prompb.TimeSeries, matchIdxs []uint32) []prompb.TimeSeries {
-	dst := src[:0]
-	for i, match := range matchIdxs {
-		if match == 0 {
-			continue
-		}
-		dst = append(dst, src[i])
-	}
-	tail := src[len(dst):]
-	clear(tail)
-	return dst
-}
-
-func (rwctx *remoteWriteCtx) pushInternalTrackDropped(tss []prompb.TimeSeries) {
-	if rwctx.tryPushTimeSeriesInternal(tss) {
+func (rwctx *remoteWriteCtx) pushInternalTrackDropped(tss []prompbmarshal.TimeSeries) {
+	if rwctx.tryPushInternal(tss) {
 		return
 	}
 	if !rwctx.fq.IsPersistentQueueDisabled() {
@@ -1127,30 +996,23 @@ func (rwctx *remoteWriteCtx) pushInternalTrackDropped(tss []prompb.TimeSeries) {
 	rwctx.rowsDroppedOnPushFailure.Add(rowsCount)
 }
 
-func (rwctx *remoteWriteCtx) tryPushMetadataInternal(mms []prompb.MetricMetadata) bool {
-	pss := rwctx.pss
-	idx := rwctx.pssNextIdx.Add(1) % uint64(len(pss))
-
-	return pss[idx].TryPushMetadata(mms)
-}
-
-func (rwctx *remoteWriteCtx) tryPushTimeSeriesInternal(tss []prompb.TimeSeries) bool {
+func (rwctx *remoteWriteCtx) tryPushInternal(tss []prompbmarshal.TimeSeries) bool {
 	var rctx *relabelCtx
-	var v *[]prompb.TimeSeries
+	var v *[]prompbmarshal.TimeSeries
 	defer func() {
 		if rctx == nil {
 			return
 		}
-		*v = prompb.ResetTimeSeries(tss)
+		*v = prompbmarshal.ResetTimeSeries(tss)
 		tssPool.Put(v)
 		putRelabelCtx(rctx)
 	}()
 
 	if len(labelsGlobal) > 0 {
-		// Make a copy of tss before adding extra labels to prevent
+		// Make a copy of tss before adding extra labels in order to prevent
 		// from affecting time series for other remoteWrite.url configs.
 		rctx = getRelabelCtx()
-		v = tssPool.Get().(*[]prompb.TimeSeries)
+		v = tssPool.Get().(*[]prompbmarshal.TimeSeries)
 		tss = append(*v, tss...)
 		rctx.appendExtraLabels(tss, labelsGlobal)
 	}
@@ -1158,17 +1020,17 @@ func (rwctx *remoteWriteCtx) tryPushTimeSeriesInternal(tss []prompb.TimeSeries)
 	pss := rwctx.pss
 	idx := rwctx.pssNextIdx.Add(1) % uint64(len(pss))
 
-	return pss[idx].TryPushTimeSeries(tss)
+	return pss[idx].TryPush(tss)
 }
 
 var tssPool = &sync.Pool{
 	New: func() any {
-		a := []prompb.TimeSeries{}
+		a := []prompbmarshal.TimeSeries{}
 		return &a
 	},
 }
 
-func getRowsCount(tss []prompb.TimeSeries) int {
+func getRowsCount(tss []prompbmarshal.TimeSeries) int {
 	rowsCount := 0
 	for _, ts := range tss {
 		rowsCount += len(ts.Samples)
@@ -1183,21 +1045,3 @@ func newMapFromStrings(a []string) map[string]struct{} {
 	}
 	return m
 }
-
-func getMaxHourlySeries() int {
-	limit := *maxHourlySeries
-	if limit == -1 || limit > math.MaxInt32 {
-		return math.MaxInt32
-	}
-
-	return int(limit)
-}
-
-func getMaxDailySeries() int {
-	limit := *maxDailySeries
-	if limit == -1 || limit > math.MaxInt32 {
-		return math.MaxInt32
-	}
-
-	return int(limit)
-}

app/vmagent/remotewrite/remotewrite_test.go

@@ -10,9 +10,7 @@ import (
 	"time"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/consistenthash"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/persistentqueue"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/streamaggr"
@@ -25,16 +23,16 @@ func TestGetLabelsHash_Distribution(t *testing.T) {
 		t.Helper()
 
 		// Distribute itemsCount hashes returned by getLabelsHash() across bucketsCount buckets.
-		itemsCount := 10_000 * bucketsCount
+		itemsCount := 1_000 * bucketsCount
 		m := make([]int, bucketsCount)
-		var labels []prompb.Label
-		for i := range itemsCount {
-			labels = append(labels[:0], prompb.Label{
+		var labels []prompbmarshal.Label
+		for i := 0; i < itemsCount; i++ {
+			labels = append(labels[:0], prompbmarshal.Label{
 				Name:  "__name__",
 				Value: fmt.Sprintf("some_name_%d", i),
 			})
-			for j := range 10 {
-				labels = append(labels, prompb.Label{
+			for j := 0; j < 10; j++ {
+				labels = append(labels, prompbmarshal.Label{
 					Name:  fmt.Sprintf("label_%d", j),
 					Value: fmt.Sprintf("value_%d_%d", i, j),
 				})
@@ -44,12 +42,10 @@ func TestGetLabelsHash_Distribution(t *testing.T) {
 		}
 
 		// Verify that the distribution is even
-		expectedItemsPerBucket := float64(itemsCount / bucketsCount)
-		allowedDeviation := math.Round(float64(expectedItemsPerBucket) * 0.04)
+		expectedItemsPerBucket := itemsCount / bucketsCount
 		for _, n := range m {
-			if math.Abs(expectedItemsPerBucket-float64(n)) > allowedDeviation {
-				t.Fatalf("unexpected items in the bucket for %d buckets; got %d; want in range [%.0f, %.0f]",
-					bucketsCount, n, expectedItemsPerBucket-allowedDeviation, expectedItemsPerBucket+allowedDeviation)
+			if math.Abs(1-float64(n)/float64(expectedItemsPerBucket)) > 0.04 {
+				t.Fatalf("unexpected items in the bucket for %d buckets; got %d; want around %d", bucketsCount, n, expectedItemsPerBucket)
 			}
 		}
 	}
@@ -61,8 +57,8 @@ func TestGetLabelsHash_Distribution(t *testing.T) {
 	f(10)
 }
 
-func TestRemoteWriteContext_TryPushTimeSeries(t *testing.T) {
-	f := func(streamAggrConfig, relabelConfig string, enableWindows bool, dedupInterval time.Duration, keepInput, dropInput bool, input string, expectedRowsPushedAfterRelabel, expectedPushedSample int) {
+func TestRemoteWriteContext_TryPush_ImmutableTimeseries(t *testing.T) {
+	f := func(streamAggrConfig, relabelConfig string, enableWindows bool, dedupInterval time.Duration, keepInput, dropInput bool, input string) {
 		t.Helper()
 		perURLRelabel, err := promrelabel.ParseRelabelConfigsData([]byte(relabelConfig))
 		if err != nil {
@@ -75,16 +71,10 @@ func TestRemoteWriteContext_TryPushTimeSeries(t *testing.T) {
 		}
 		allRelabelConfigs.Store(rcs)
 
-		path := "fast-queue-write-test"
-		fs.MustRemoveDir(path)
-		fq := persistentqueue.MustOpenFastQueue(path, "test", 100, 0, false)
-		defer fs.MustRemoveDir(path)
-		defer fq.MustClose()
-
 		pss := make([]*pendingSeries, 1)
 		isVMProto := &atomic.Bool{}
 		isVMProto.Store(true)
-		pss[0] = newPendingSeries(fq, isVMProto, 0, 100)
+		pss[0] = newPendingSeries(nil, isVMProto, 0, 100)
 		rwctx := &remoteWriteCtx{
 			idx:                    0,
 			streamAggrKeepInput:    keepInput,
@@ -93,14 +83,12 @@ func TestRemoteWriteContext_TryPushTimeSeries(t *testing.T) {
 			rowsPushedAfterRelabel: metrics.GetOrCreateCounter(`foo`),
 			rowsDroppedByRelabel:   metrics.GetOrCreateCounter(`bar`),
 		}
-		defer metrics.UnregisterAllMetrics()
-
 		if dedupInterval > 0 {
 			rwctx.deduplicator = streamaggr.NewDeduplicator(nil, enableWindows, dedupInterval, nil, "dedup-global")
 		}
 
 		if streamAggrConfig != "" {
-			pushNoop := func(_ []prompb.TimeSeries) {}
+			pushNoop := func(_ []prompbmarshal.TimeSeries) {}
 			opts := streamaggr.Options{
 				EnableWindows: enableWindows,
 			}
@@ -114,29 +102,25 @@ func TestRemoteWriteContext_TryPushTimeSeries(t *testing.T) {
 
 		offsetMsecs := time.Now().UnixMilli()
 		inputTss := prometheus.MustParsePromMetrics(input, offsetMsecs)
-		expectedTss := make([]prompb.TimeSeries, len(inputTss))
+		expectedTss := make([]prompbmarshal.TimeSeries, len(inputTss))
 
-		// check inputTss is not modified after TryPushTimeSeries
+		// copy inputTss to make sure it is not mutated during TryPush call
 		copy(expectedTss, inputTss)
-		if !rwctx.TryPushTimeSeries(inputTss, false) {
+		if !rwctx.TryPush(inputTss, false) {
 			t.Fatalf("cannot push samples to rwctx")
 		}
 
-		if int(rwctx.rowsPushedAfterRelabel.Get()) != expectedRowsPushedAfterRelabel {
-			t.Fatalf("unexpected number of rows after relabel; got %d; want %d", rwctx.rowsPushedAfterRelabel.Get(), expectedRowsPushedAfterRelabel)
-		}
-
-		if len(pss[0].wr.tss) != expectedPushedSample {
-			t.Fatalf("unexpected number of pushed samples; got %d; want %d", len(pss[0].wr.tss), expectedPushedSample)
-		}
-
 		if !reflect.DeepEqual(expectedTss, inputTss) {
 			t.Fatalf("unexpected samples;\ngot\n%v\nwant\n%v", inputTss, expectedTss)
 		}
 	}
 
-	// relabeling
-	f(``, `
+	f(`
+- interval: 1m
+  outputs: [sum_samples]
+- interval: 2m
+  outputs: [count_series]
+`, `
 - action: keep
   source_labels: [env]
   regex: "dev"
@@ -145,66 +129,53 @@ metric{env="dev"} 10
 metric{env="bar"} 20
 metric{env="dev"} 15
 metric{env="bar"} 25
-`, 2, 2)
-
-	// relabeling + aggregation
-	f(`
-- match: '{env="dev"}'
-  interval: 1m
-  outputs: [sum_samples]
-`, `
-- action: keep
-  source_labels: [env]
-  regex: ".*"
-`, false, 0, false, false, `
-metric{env="dev"} 10
-metric{env="bar"} 20
-metric{env="dev"} 15
-metric{env="bar"} 25
-`, 4, 2)
-
-	// aggregation + keepInput
-	f(`
-- match: '{env="dev"}'
-  interval: 1m
-  outputs: [sum_samples]
-`, ``, false, 0, true, false, `
-metric{env="dev"} 10
-metric{env="bar"} 20
-metric{env="dev"} 15
-metric{env="bar"} 25
-`, 4, 4)
-
-	// aggregation + dropInput
-	f(`
-- match: '{env="dev"}'
-  interval: 1m
-  outputs: [sum_samples]
-`, ``, false, 0, false, true, `
-metric{env="dev"} 10
-metric{env="bar"} 20
-metric{env="dev"} 15
-metric{env="bar"} 25
-`, 4, 0)
-
-	// aggregation + keepInput + dropInput
-	f(`
-- match: '{env="dev"}'
-  interval: 1m
-  outputs: [sum_samples]
-`, ``, false, 0, true, true, `
-metric{env="dev"} 10
-metric{env="bar"} 20
-metric{env="bar"} 25
-`, 3, 1)
-
-	// aggregation + deduplication
+`)
 	f(``, ``, true, time.Hour, false, false, `
 metric{env="dev"} 10
 metric{env="foo"} 20
 metric{env="dev"} 15
 metric{env="foo"} 25
-`, 4, 0)
+`)
+	f(``, `
+- action: keep
+  source_labels: [env]
+  regex: "dev"
+`, true, time.Hour, false, false, `
+metric{env="dev"} 10
+metric{env="bar"} 20
+metric{env="dev"} 15
+metric{env="bar"} 25
+`)
+	f(``, `
+- action: keep
+  source_labels: [env]
+  regex: "dev"
+`, true, time.Hour, true, false, `
+metric{env="test"} 10
+metric{env="dev"} 20
+metric{env="foo"} 15
+metric{env="dev"} 25
+`)
+	f(``, `
+- action: keep
+  source_labels: [env]
+  regex: "dev"
+`, true, time.Hour, false, true, `
+metric{env="foo"} 10
+metric{env="dev"} 20
+metric{env="foo"} 15
+metric{env="dev"} 25
+`)
+	f(``, `
+- action: keep
+  source_labels: [env]
+  regex: "dev"
+`, true, time.Hour, true, true, `
+metric{env="dev"} 10
+metric{env="test"} 20
+metric{env="dev"} 15
+metric{env="bar"} 25
+`)
 }
 
 func TestShardAmountRemoteWriteCtx(t *testing.T) {
@@ -249,16 +220,16 @@ func TestShardAmountRemoteWriteCtx(t *testing.T) {
 
 		seriesCount := 100000
 		// build 1000000 series
-		tssBlock := make([]prompb.TimeSeries, 0, seriesCount)
-		for i := range seriesCount {
-			tssBlock = append(tssBlock, prompb.TimeSeries{
-				Labels: []prompb.Label{
+		tssBlock := make([]prompbmarshal.TimeSeries, 0, seriesCount)
+		for i := 0; i < seriesCount; i++ {
+			tssBlock = append(tssBlock, prompbmarshal.TimeSeries{
+				Labels: []prompbmarshal.Label{
 					{
 						Name:  "label",
 						Value: strconv.Itoa(i),
 					},
 				},
-				Samples: []prompb.Sample{
+				Samples: []prompbmarshal.Sample{
 					{
 						Timestamp: 0,
 						Value:     0,
@@ -271,7 +242,7 @@ func TestShardAmountRemoteWriteCtx(t *testing.T) {
 		// build active time series set
 		nodes := make([]string, 0, remoteWriteCount)
 		activeTimeSeriesByNodes := make([]map[string]struct{}, remoteWriteCount)
-		for i := range remoteWriteCount {
+		for i := 0; i < remoteWriteCount; i++ {
 			nodes = append(nodes, fmt.Sprintf("node%d", i))
 			activeTimeSeriesByNodes[i] = make(map[string]struct{})
 		}
@@ -287,7 +258,7 @@ func TestShardAmountRemoteWriteCtx(t *testing.T) {
 		for i, nodeIdx := range healthyIdx {
 			for _, ts := range shards[i] {
 				// add it to node[nodeIdx]'s active time series
-				activeTimeSeriesByNodes[nodeIdx][prompb.LabelsToString(ts.Labels)] = struct{}{}
+				activeTimeSeriesByNodes[nodeIdx][prompbmarshal.LabelsToString(ts.Labels)] = struct{}{}
 			}
 		}
 
@@ -310,7 +281,7 @@ func TestShardAmountRemoteWriteCtx(t *testing.T) {
 		for i, nodeIdx := range healthyIdx {
 			for _, ts := range shards[i] {
 				// add it to node[nodeIdx]'s active time series
-				activeTimeSeriesByNodes[nodeIdx][prompb.LabelsToString(ts.Labels)] = struct{}{}
+				activeTimeSeriesByNodes[nodeIdx][prompbmarshal.LabelsToString(ts.Labels)] = struct{}{}
 			}
 		}
 

app/vmagent/remotewrite/streamaggr.go

@@ -8,7 +8,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fasttime"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/streamaggr"
 	"github.com/VictoriaMetrics/metrics"
 )
@@ -18,12 +18,12 @@ var (
 	streamAggrGlobalConfig = flag.String("streamAggr.config", "", "Optional path to file with stream aggregation config. "+
 		"See https://docs.victoriametrics.com/victoriametrics/stream-aggregation/ . "+
 		"See also -streamAggr.keepInput, -streamAggr.dropInput and -streamAggr.dedupInterval")
-	streamAggrGlobalKeepInput = flag.Bool("streamAggr.keepInput", false, "Whether to keep input samples that match any rule in "+
-		"-streamAggr.config. By default, matched raw samples are aggregated and dropped, while unmatched samples "+
-		"are written to the remote storage. See also -streamAggr.dropInput and https://docs.victoriametrics.com/victoriametrics/stream-aggregation/")
-	streamAggrGlobalDropInput = flag.Bool("streamAggr.dropInput", false, "Whether to drop input samples that not matching any rule in "+
-		"-streamAggr.config. By default, only matched raw samples are dropped, while unmatched samples "+
-		"are written to the remote storage. See also -streamAggr.keepInput and https://docs.victoriametrics.com/victoriametrics/stream-aggregation/")
+	streamAggrGlobalKeepInput = flag.Bool("streamAggr.keepInput", false, "Whether to keep all the input samples after the aggregation "+
+		"with -streamAggr.config. By default, only aggregates samples are dropped, while the remaining samples "+
+		"are written to remote storages write. See also -streamAggr.dropInput and https://docs.victoriametrics.com/victoriametrics/stream-aggregation/")
+	streamAggrGlobalDropInput = flag.Bool("streamAggr.dropInput", false, "Whether to drop all the input samples after the aggregation "+
+		"with -remoteWrite.streamAggr.config. By default, only aggregates samples are dropped, while the remaining samples "+
+		"are written to remote storages write. See also -streamAggr.keepInput and https://docs.victoriametrics.com/victoriametrics/stream-aggregation/")
 	streamAggrGlobalDedupInterval = flag.Duration("streamAggr.dedupInterval", 0, "Input samples are de-duplicated with this interval on "+
 		"aggregator before optional aggregation with -streamAggr.config . "+
 		"See also -dedup.minScrapeInterval and https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#deduplication")
@@ -43,11 +43,11 @@ var (
 	streamAggrConfig = flagutil.NewArrayString("remoteWrite.streamAggr.config", "Optional path to file with stream aggregation config for the corresponding -remoteWrite.url. "+
 		"See https://docs.victoriametrics.com/victoriametrics/stream-aggregation/ . "+
 		"See also -remoteWrite.streamAggr.keepInput, -remoteWrite.streamAggr.dropInput and -remoteWrite.streamAggr.dedupInterval")
-	streamAggrDropInput = flagutil.NewArrayBool("remoteWrite.streamAggr.dropInput", "Whether to drop input samples that not matching any rule in "+
-		"the corresponding -remoteWrite.streamAggr.config. By default, only matched raw samples are dropped, while unmatched samples "+
+	streamAggrDropInput = flagutil.NewArrayBool("remoteWrite.streamAggr.dropInput", "Whether to drop all the input samples after the aggregation "+
+		"with -remoteWrite.streamAggr.config at the corresponding -remoteWrite.url. By default, only aggregates samples are dropped, while the remaining samples "+
 		"are written to the corresponding -remoteWrite.url . See also -remoteWrite.streamAggr.keepInput and https://docs.victoriametrics.com/victoriametrics/stream-aggregation/")
-	streamAggrKeepInput = flagutil.NewArrayBool("remoteWrite.streamAggr.keepInput", "Whether to keep input samples that match any rule in "+
-		"the corresponding -remoteWrite.streamAggr.config. By default, matched raw samples are aggregated and dropped, while unmatched samples "+
+	streamAggrKeepInput = flagutil.NewArrayBool("remoteWrite.streamAggr.keepInput", "Whether to keep all the input samples after the aggregation "+
+		"with -remoteWrite.streamAggr.config at the corresponding -remoteWrite.url. By default, only aggregates samples are dropped, while the remaining samples "+
 		"are written to the corresponding -remoteWrite.url . See also -remoteWrite.streamAggr.dropInput and https://docs.victoriametrics.com/victoriametrics/stream-aggregation/")
 	streamAggrDedupInterval = flagutil.NewArrayDuration("remoteWrite.streamAggr.dedupInterval", 0, "Input samples are de-duplicated with this interval before optional aggregation "+
 		"with -remoteWrite.streamAggr.config at the corresponding -remoteWrite.url. See also -dedup.minScrapeInterval and https://docs.victoriametrics.com/victoriametrics/stream-aggregation/#deduplication")
@@ -80,7 +80,7 @@ func CheckStreamAggrConfigs() error {
 		return fmt.Errorf("too many -remoteWrite.streamAggr.config args: %d; it mustn't exceed the number of -remoteWrite.url args: %d", len(*streamAggrConfig), len(*remoteWriteURLs))
 	}
 
-	pushNoop := func(_ []prompb.TimeSeries) {}
+	pushNoop := func(_ []prompbmarshal.TimeSeries) {}
 	for idx := range *streamAggrConfig {
 		sas, err := newStreamAggrConfigPerURL(idx, pushNoop)
 		if err != nil {
@@ -141,7 +141,7 @@ func initStreamAggrConfigGlobal() {
 	}
 	dedupInterval := *streamAggrGlobalDedupInterval
 	if dedupInterval > 0 {
-		deduplicatorGlobal = streamaggr.NewDeduplicator(pushTimeSeriesToRemoteStoragesTrackDropped, *streamAggrGlobalEnableWindows, dedupInterval, *streamAggrGlobalDropInputLabels, "dedup-global")
+		deduplicatorGlobal = streamaggr.NewDeduplicator(pushToRemoteStoragesTrackDropped, *streamAggrGlobalEnableWindows, dedupInterval, *streamAggrGlobalDropInputLabels, "dedup-global")
 	}
 }
 
@@ -216,7 +216,7 @@ func newStreamAggrConfigGlobal() (*streamaggr.Aggregators, error) {
 		EnableWindows:        *streamAggrGlobalEnableWindows,
 	}
 
-	sas, err := streamaggr.LoadFromFile(path, pushTimeSeriesToRemoteStoragesTrackDropped, opts, "global")
+	sas, err := streamaggr.LoadFromFile(path, pushToRemoteStoragesTrackDropped, opts, "global")
 	if err != nil {
 		return nil, fmt.Errorf("cannot load -streamAggr.config=%q: %w", *streamAggrGlobalConfig, err)
 	}

app/vmagent/vmimport/request_handler.go

@@ -8,7 +8,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/vmimport"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/vmimport/stream"
@@ -36,7 +36,7 @@ func InsertHandler(at *auth.Token, req *http.Request) error {
 	})
 }
 
-func insertRows(at *auth.Token, rows []vmimport.Row, extraLabels []prompb.Label) error {
+func insertRows(at *auth.Token, rows []vmimport.Row, extraLabels []prompbmarshal.Label) error {
 	ctx := common.GetPushCtx()
 	defer common.PutPushCtx(ctx)
 
@@ -50,7 +50,7 @@ func insertRows(at *auth.Token, rows []vmimport.Row, extraLabels []prompb.Label)
 		labelsLen := len(labels)
 		for j := range r.Tags {
 			tag := &r.Tags[j]
-			labels = append(labels, prompb.Label{
+			labels = append(labels, prompbmarshal.Label{
 				Name:  bytesutil.ToUnsafeString(tag.Key),
 				Value: bytesutil.ToUnsafeString(tag.Value),
 			})
@@ -63,12 +63,12 @@ func insertRows(at *auth.Token, rows []vmimport.Row, extraLabels []prompb.Label)
 		}
 		samplesLen := len(samples)
 		for j, value := range values {
-			samples = append(samples, prompb.Sample{
+			samples = append(samples, prompbmarshal.Sample{
 				Value:     value,
 				Timestamp: timestamps[j],
 			})
 		}
-		tssDst = append(tssDst, prompb.TimeSeries{
+		tssDst = append(tssDst, prompbmarshal.TimeSeries{
 			Labels:  labels[labelsLen:],
 			Samples: samples[samplesLen:],
 		})

app/vmagent/zabbixconnector/request_handler.go

@@ -1,80 +0,0 @@
-package zabbixconnector
-
-import (
-	"net/http"
-
-	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
-	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/zabbixconnector"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/zabbixconnector/stream"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
-	"github.com/VictoriaMetrics/metrics"
-)
-
-var (
-	rowsInserted       = metrics.NewCounter(`vmagent_rows_inserted_total{type="zabbixconnector"}`)
-	rowsTenantInserted = tenantmetrics.NewCounterMap(`vmagent_tenant_inserted_rows_total{type="zabbixconnector"}`)
-	rowsPerInsert      = metrics.NewHistogram(`vmagent_rows_per_insert{type="zabbixconnector"}`)
-)
-
-// InsertHandlerForHTTP processes remote write for ZabbixConnector POST /zabbixconnector/v1/history request.
-func InsertHandlerForHTTP(at *auth.Token, req *http.Request) error {
-	extraLabels, err := protoparserutil.GetExtraLabels(req)
-	if err != nil {
-		return err
-	}
-	encoding := req.Header.Get("Content-Encoding")
-	return stream.Parse(req.Body, encoding, func(rows []zabbixconnector.Row) error {
-		return insertRows(at, rows, extraLabels)
-	})
-}
-
-func insertRows(at *auth.Token, rows []zabbixconnector.Row, extraLabels []prompb.Label) error {
-	ctx := common.GetPushCtx()
-	defer common.PutPushCtx(ctx)
-
-	rowsTotal := len(rows)
-	tssDst := ctx.WriteRequest.Timeseries[:0]
-	labels := ctx.Labels[:0]
-	samples := ctx.Samples[:0]
-	for i := range rows {
-		r := &rows[i]
-
-		labelsLen := len(labels)
-		for j := range r.Tags {
-			tag := &r.Tags[j]
-			labels = append(labels, prompb.Label{
-				Name:  bytesutil.ToUnsafeString(tag.Key),
-				Value: bytesutil.ToUnsafeString(tag.Value),
-			})
-		}
-		labels = append(labels, extraLabels...)
-
-		samplesLen := len(samples)
-		samples = append(samples, prompb.Sample{
-			Value:     r.Value,
-			Timestamp: r.Timestamp,
-		})
-
-		tssDst = append(tssDst, prompb.TimeSeries{
-			Labels:  labels[labelsLen:],
-			Samples: samples[samplesLen:],
-		})
-	}
-	ctx.WriteRequest.Timeseries = tssDst
-	ctx.Labels = labels
-	ctx.Samples = samples
-	if !remotewrite.TryPush(at, &ctx.WriteRequest) {
-		return remotewrite.ErrQueueFullHTTPRetry
-	}
-	rowsInserted.Add(rowsTotal)
-	if at != nil {
-		rowsTenantInserted.Get(at).Add(rowsTotal)
-	}
-	rowsPerInsert.Update(float64(rowsTotal))
-	return nil
-}

app/vmalert-tool/Makefile

@@ -27,9 +27,6 @@ vmalert-tool-linux-ppc64le-prod:
 vmalert-tool-linux-386-prod:
 	APP_NAME=vmalert-tool $(MAKE) app-via-docker-linux-386
 
-vmalert-tool-linux-s390x-prod:
-	APP_NAME=vmalert-tool $(MAKE) app-via-docker-linux-s390x
-
 vmalert-tool-darwin-amd64-prod:
 	APP_NAME=vmalert-tool $(MAKE) app-via-docker-darwin-amd64
 

app/vmalert-tool/unittest/input_test.go

@@ -41,7 +41,7 @@ func TestParseInputValue_Success(t *testing.T) {
 		if len(outputExpected) != len(output) {
 			t.Fatalf("unexpected output length; got %d; want %d", len(outputExpected), len(output))
 		}
-		for i := range outputExpected {
+		for i := 0; i < len(outputExpected); i++ {
 			if outputExpected[i].Omitted != output[i].Omitted {
 				t.Fatalf("unexpected Omitted field in the output\ngot\n%v\nwant\n%v", output, outputExpected)
 			}

app/vmalert-tool/unittest/recording.go

@@ -9,7 +9,7 @@ import (
 	"time"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/datasource"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutil"
 	"github.com/VictoriaMetrics/metricsql"
 )
@@ -49,7 +49,7 @@ Outer:
 		}
 		var expSamples []parsedSample
 		for _, s := range mt.ExpSamples {
-			expLb := []prompb.Label{}
+			expLb := []prompbmarshal.Label{}
 			if s.Labels != "" {
 				metricsqlExpr, err := metricsql.Parse(s.Labels)
 				if err != nil {
@@ -65,7 +65,7 @@ Outer:
 				}
 				if len(metricsqlMetricExpr.LabelFilterss) > 0 {
 					for _, l := range metricsqlMetricExpr.LabelFilterss[0] {
-						expLb = append(expLb, prompb.Label{
+						expLb = append(expLb, prompbmarshal.Label{
 							Name:  l.Label,
 							Value: l.Value,
 						})

app/vmalert-tool/unittest/testdata/rules.yaml

@@ -15,10 +15,6 @@ groups:
       - alert: SameAlertNameWithDifferentGroup
         expr: absent(test)
         for: 1m
-      - alert: AlertWithTemplate
-        expr: test
-        annotations:
-          queryAnno: '{{ query "foo" | first | value }}'
 
   - name: group2
     rules:

app/vmalert-tool/unittest/testdata/test1.yaml

@@ -10,9 +10,7 @@ tests:
     input_series:
       - series: "test"
         values: "_x5 1x5 _ stale"
-      - series: "foo"
-        values: "1x20"
-  
+
     alert_rule_test:
       - eval_time: 1m
         groupname: group1
@@ -34,14 +32,6 @@ tests:
         groupname: group1
         alertname: SameAlertNameWithDifferentGroup
         exp_alerts: []
-      - eval_time: 6m
-        groupname: group1
-        alertname: AlertWithTemplate
-        exp_alerts:
-          - exp_labels:
-              cluster: prod
-            exp_annotations:
-              queryAnno: '1'
 
     metricsql_expr_test:
       - expr: test
@@ -60,8 +50,6 @@ tests:
         values: "0+0x1440"
       - series: "test"
         values: "0+1x1440"
-      - series: "foo"
-        values: "1x20"
 
     metricsql_expr_test:
       - expr: count(ALERTS) by (alertgroup, alertname, alertstate)
@@ -71,8 +59,6 @@ tests:
             value: 1
           - labels: '{alertgroup="group1", alertname="InstanceDown", alertstate="pending"}'
             value: 1
-          - labels: '{alertgroup="group1", alertname="AlertWithTemplate", alertstate="firing"}'
-            value: 1
       - expr: t1
         eval_time: 4m
         exp_samples:

app/vmalert-tool/unittest/unittest.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"flag"
 	"fmt"
-	"maps"
 	"net"
 	"net/http"
 	"net/http/httptest"
@@ -13,7 +12,6 @@ import (
 	"os/signal"
 	"path/filepath"
 	"reflect"
-	"slices"
 	"sort"
 	"strings"
 	"syscall"
@@ -21,6 +19,7 @@ import (
 
 	"gopkg.in/yaml.v2"
 
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/config"
 	vmalertconfig "github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/config"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/datasource"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/notifier"
@@ -36,7 +35,6 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/netutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutil"
 	"github.com/VictoriaMetrics/metrics"
 )
@@ -61,7 +59,7 @@ func UnitTest(files []string, disableGroupLabel bool, externalLabels []string, e
 	}
 	eu, err := url.Parse(externalURL)
 	if err != nil {
-		logger.Fatalf("failed to parse external URL: %s", err)
+		logger.Fatalf("failed to parse external URL: %w", err)
 	}
 	if err := templates.Load([]string{}, *eu); err != nil {
 		logger.Fatalf("failed to load template: %v", err)
@@ -87,8 +85,7 @@ func UnitTest(files []string, disableGroupLabel bool, externalLabels []string, e
 		defer server.Close()
 	} else {
 		httpListenAddr = httpListenPort
-
-		ln, err := net.Listen(netutil.GetTCPNetwork(), fmt.Sprintf(":%s", httpListenPort))
+		ln, err := net.Listen("tcp", fmt.Sprintf(":%s", httpListenPort))
 		if err != nil {
 			logger.Fatalf("cannot listen on port %s: %v", httpListenPort, err)
 		}
@@ -110,12 +107,12 @@ func UnitTest(files []string, disableGroupLabel bool, externalLabels []string, e
 	vminsert.Init()
 	vmselect.Init()
 	// storagePath will be created again when closing vmselect, so remove it again.
-	defer fs.MustRemoveDir(storagePath)
+	defer fs.MustRemoveAll(storagePath)
 	defer vminsert.Stop()
 	defer vmselect.Stop()
 	disableAlertgroupLabel = disableGroupLabel
 
-	testfiles, err := vmalertconfig.ReadFromFS(files)
+	testfiles, err := config.ReadFromFS(files)
 	if err != nil {
 		logger.Fatalf("failed to load test files %q: %v", files, err)
 	}
@@ -134,7 +131,7 @@ func UnitTest(files []string, disableGroupLabel bool, externalLabels []string, e
 		}
 		labels[s[:n]] = s[n+1:]
 	}
-	err = notifier.Init(labels, externalURL)
+	_, err = notifier.Init(nil, labels, externalURL)
 	if err != nil {
 		logger.Fatalf("failed to init notifier: %v", err)
 	}
@@ -307,7 +304,7 @@ checkCheck:
 func tearDown() {
 	vmstorage.Stop()
 	metrics.UnregisterAllMetrics()
-	fs.MustRemoveDir(storagePath)
+	fs.MustRemoveAll(storagePath)
 }
 
 func (tg *testGroup) test(evalInterval time.Duration, groupOrderMap map[string]int, testGroups []vmalertconfig.Group, externalLabels map[string]string) (checkErrs []error) {
@@ -350,7 +347,9 @@ func (tg *testGroup) test(evalInterval time.Duration, groupOrderMap map[string]i
 	for k := range alertEvalTimesMap {
 		alertEvalTimes = append(alertEvalTimes, k)
 	}
-	slices.Sort(alertEvalTimes)
+	sort.Slice(alertEvalTimes, func(i, j int) bool {
+		return alertEvalTimes[i] < alertEvalTimes[j]
+	})
 
 	// sort group eval order according to the given "group_eval_order".
 	sort.Slice(testGroups, func(i, j int) bool {
@@ -361,10 +360,13 @@ func (tg *testGroup) test(evalInterval time.Duration, groupOrderMap map[string]i
 	var groups []*rule.Group
 	for _, group := range testGroups {
 		mergedExternalLabels := make(map[string]string)
-		maps.Copy(mergedExternalLabels, tg.ExternalLabels)
-		maps.Copy(mergedExternalLabels, externalLabels)
+		for k, v := range tg.ExternalLabels {
+			mergedExternalLabels[k] = v
+		}
+		for k, v := range externalLabels {
+			mergedExternalLabels[k] = v
+		}
 		ng := rule.NewGroup(group, q, time.Minute, mergedExternalLabels)
-		ng.Init()
 		groups = append(groups, ng)
 	}
 
@@ -375,7 +377,7 @@ func (tg *testGroup) test(evalInterval time.Duration, groupOrderMap map[string]i
 			if len(g.Rules) == 0 {
 				continue
 			}
-			errs := g.ExecOnce(context.Background(), rw, ts)
+			errs := g.ExecOnce(context.Background(), func() []notifier.Notifier { return nil }, rw, ts)
 			for err := range errs {
 				if err != nil {
 					checkErrs = append(checkErrs, fmt.Errorf("\nfailed to exec group: %q, time: %s, err: %w", g.Name,

app/vmalert/Makefile

@@ -27,9 +27,6 @@ vmalert-linux-ppc64le-prod:
 vmalert-linux-386-prod:
 	APP_NAME=vmalert $(MAKE) app-via-docker-linux-386
 
-vmalert-linux-s390x-prod:
-	APP_NAME=vmalert $(MAKE) app-via-docker-linux-s390x
-
 vmalert-darwin-amd64-prod:
 	APP_NAME=vmalert $(MAKE) app-via-docker-darwin-amd64
 

app/vmalert/config/config.go

@@ -31,7 +31,7 @@ type Group struct {
 	// EvalDelay will adjust the `time` parameter of rule evaluation requests to compensate intentional query delay from datasource.
 	// see https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5155
 	EvalDelay   *promutil.Duration `yaml:"eval_delay,omitempty"`
-	Limit       *int               `yaml:"limit,omitempty"`
+	Limit       int                `yaml:"limit,omitempty"`
 	Rules       []Rule             `yaml:"rules"`
 	Concurrency int                `yaml:"concurrency"`
 	// Labels is a set of label value pairs, that will be added to every rule.
@@ -81,15 +81,18 @@ func (g *Group) Validate(validateTplFn ValidateTplFn, validateExpressions bool)
 	if g.Interval.Duration() < 0 {
 		return fmt.Errorf("interval shouldn't be lower than 0")
 	}
-	// if `eval_offset` is set, the group interval must be specified explicitly(instead of inherited from global evaluationInterval flag) and must bigger than offset.
-	if g.EvalOffset.Duration().Abs() > g.Interval.Duration() {
-		return fmt.Errorf("the abs value of eval_offset should be smaller than interval; now eval_offset: %v, interval: %v", g.EvalOffset.Duration(), g.Interval.Duration())
+	if g.EvalOffset.Duration() < 0 {
+		return fmt.Errorf("eval_offset shouldn't be lower than 0")
+	}
+	// if `eval_offset` is set, interval won't use global evaluationInterval flag and must bigger than offset.
+	if g.EvalOffset.Duration() > g.Interval.Duration() {
+		return fmt.Errorf("eval_offset should be smaller than interval; now eval_offset: %v, interval: %v", g.EvalOffset.Duration(), g.Interval.Duration())
 	}
 	if g.EvalOffset != nil && g.EvalDelay != nil {
 		return fmt.Errorf("eval_offset cannot be used with eval_delay")
 	}
-	if g.Limit != nil && *g.Limit < 0 {
-		return fmt.Errorf("invalid limit %d, shouldn't be less than 0", *g.Limit)
+	if g.Limit < 0 {
+		return fmt.Errorf("invalid limit %d, shouldn't be less than 0", g.Limit)
 	}
 	if g.Concurrency < 0 {
 		return fmt.Errorf("invalid concurrency %d, shouldn't be less than 0", g.Concurrency)
@@ -222,9 +225,6 @@ func (r *Rule) Validate() error {
 	if r.Expr == "" {
 		return fmt.Errorf("expression can't be empty")
 	}
-	if _, ok := r.Labels["__name__"]; ok {
-		return fmt.Errorf("invalid rule label __name__")
-	}
 	return checkOverflow(r.XXX, "rule")
 }
 
@@ -295,7 +295,10 @@ func parse(files map[string][]byte, validateTplFn ValidateTplFn, validateExpress
 }
 
 func parseConfig(data []byte) ([]Group, error) {
-	data = envtemplate.ReplaceBytes(data)
+	data, err := envtemplate.ReplaceBytes(data)
+	if err != nil {
+		return nil, fmt.Errorf("cannot expand environment vars: %w", err)
+	}
 
 	var result []Group
 	type cfgFile struct {
@@ -307,13 +310,13 @@ func parseConfig(data []byte) ([]Group, error) {
 	decoder := yaml.NewDecoder(bytes.NewReader(data))
 	for {
 		var cf cfgFile
-		if err := decoder.Decode(&cf); err != nil {
+		if err = decoder.Decode(&cf); err != nil {
 			if err == io.EOF { // EOF indicates no more documents to read
 				break
 			}
 			return nil, err
 		}
-		if err := checkOverflow(cf.XXX, "config"); err != nil {
+		if err = checkOverflow(cf.XXX, "config"); err != nil {
 			return nil, err
 		}
 		result = append(result, cf.Groups...)

app/vmalert/config/config_test.go

@@ -116,7 +116,7 @@ func TestParse_Failure(t *testing.T) {
 
 	f([]string{"testdata/rules/rules_interval_bad.rules"}, "eval_offset should be smaller than interval")
 	f([]string{"testdata/rules/rules0-bad.rules"}, "unexpected token")
-	f([]string{"testdata/dir/rules0-bad.rules"}, "invalid annotations")
+	f([]string{"testdata/dir/rules0-bad.rules"}, "error parsing annotation")
 	f([]string{"testdata/dir/rules1-bad.rules"}, "duplicate in file")
 	f([]string{"testdata/dir/rules2-bad.rules"}, "function \"unknown\" not defined")
 	f([]string{"testdata/dir/rules3-bad.rules"}, "either `record` or `alert` must be set")
@@ -136,9 +136,6 @@ func TestRuleValidate(t *testing.T) {
 	if err := (&Rule{Alert: "alert"}).Validate(); err == nil {
 		t.Fatalf("expected empty expr error")
 	}
-	if err := (&Rule{Record: "record", Expr: "sum(test)", Labels: map[string]string{"__name__": "test"}}).Validate(); err == nil {
-		t.Fatalf("invalid rule label; got %s", err)
-	}
 	if err := (&Rule{Alert: "alert", Expr: "test>0"}).Validate(); err != nil {
 		t.Fatalf("expected valid rule; got %s", err)
 	}
@@ -179,21 +176,14 @@ func TestGroupValidate_Failure(t *testing.T) {
 	}, false, "interval shouldn't be lower than 0")
 
 	f(&Group{
-		Name:       "too big eval_offset",
+		Name:       "wrong eval_offset",
 		Interval:   promutil.NewDuration(time.Minute),
 		EvalOffset: promutil.NewDuration(2 * time.Minute),
 	}, false, "eval_offset should be smaller than interval")
 
-	f(&Group{
-		Name:       "too big negative eval_offset",
-		Interval:   promutil.NewDuration(time.Minute),
-		EvalOffset: promutil.NewDuration(-2 * time.Minute),
-	}, false, "eval_offset should be smaller than interval")
-
-	limit := -1
 	f(&Group{
 		Name:  "wrong limit",
-		Limit: &limit,
+		Limit: -1,
 	}, false, "invalid limit")
 
 	f(&Group{
@@ -352,6 +342,7 @@ func TestGroupValidate_Failure(t *testing.T) {
 			},
 		},
 	}, true, "bad prometheus expr")
+
 }
 
 func TestGroupValidate_Success(t *testing.T) {

app/vmalert/config/types.go

@@ -2,7 +2,6 @@ package config
 
 import (
 	"fmt"
-	"slices"
 	"strings"
 
 	"github.com/VictoriaMetrics/VictoriaLogs/lib/logstorage"
@@ -77,12 +76,13 @@ func (t *Type) ValidateExpr(expr string) error {
 		if err != nil {
 			return fmt.Errorf("bad LogsQL expr: %q, err: %w", expr, err)
 		}
-		labels, err := q.GetStatsLabels()
-		if err != nil {
-			return fmt.Errorf("cannot obtain labels from LogsQL expr: %q, err: %w", expr, err)
-		}
-		if slices.Contains(labels, "_time") {
-			return fmt.Errorf("bad LogsQL expr: %q, err: cannot contain time buckets stats pipe `stats by (_time:step)`", expr)
+		fields, _ := q.GetStatsByFields()
+		for i := range fields {
+			// VictoriaLogs inserts `_time` field as a label in result when query with `stats by (_time:step)`,
+			// making the result meaningless and may lead to cardinality issues.
+			if fields[i] == "_time" {
+				return fmt.Errorf("bad LogsQL expr: %q, err: cannot contain time buckets stats pipe `stats by (_time:step)`", expr)
+			}
 		}
 	default:
 		return fmt.Errorf("unknown datasource type=%q", t.Name)

app/vmalert/datasource/client.go

@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"maps"
 	"net/http"
 	"net/url"
 	"strings"
@@ -92,7 +91,9 @@ func (c *Client) Clone() *Client {
 		ns.extraHeaders = make([]keyValue, len(c.extraHeaders))
 		copy(ns.extraHeaders, c.extraHeaders)
 	}
-	maps.Copy(ns.extraParams, c.extraParams)
+	for k, v := range c.extraParams {
+		ns.extraParams[k] = v
+	}
 
 	return ns
 }
@@ -172,26 +173,22 @@ func (c *Client) Query(ctx context.Context, query string, ts time.Time) (Result,
 			return Result{}, nil, fmt.Errorf("second attempt: %w", err)
 		}
 	}
-	defer func() { _ = resp.Body.Close() }()
 
 	// Process the received response.
-	var parseFn func(resp *http.Response) (Result, error)
+	var parseFn func(req *http.Request, resp *http.Response) (Result, error)
 	switch c.dataSourceType {
 	case datasourcePrometheus:
-		parseFn = parsePrometheusInstantResponse
+		parseFn = parsePrometheusResponse
 	case datasourceGraphite:
 		parseFn = parseGraphiteResponse
 	case datasourceVLogs:
-		parseFn = parseVLogsInstantResponse
+		parseFn = parseVLogsResponse
 	default:
 		logger.Panicf("BUG: unsupported datasource type %q to parse query response", c.dataSourceType)
 	}
-
-	result, err := parseFn(resp)
-	if err != nil {
-		return Result{}, nil, fmt.Errorf("error parsing response from %q: %w", req.URL.Redacted(), err)
-	}
-	return result, req, nil
+	result, err := parseFn(req, resp)
+	_ = resp.Body.Close()
+	return result, req, err
 }
 
 // QueryRange executes the given query on the given time range.
@@ -232,23 +229,19 @@ func (c *Client) QueryRange(ctx context.Context, query string, start, end time.T
 			return res, fmt.Errorf("second attempt: %w", err)
 		}
 	}
-	defer func() { _ = resp.Body.Close() }()
 
 	// Process the received response.
-	var parseFn func(resp *http.Response) (Result, error)
+	var parseFn func(req *http.Request, resp *http.Response) (Result, error)
 	switch c.dataSourceType {
 	case datasourcePrometheus:
-		parseFn = parsePrometheusRangeResponse
+		parseFn = parsePrometheusResponse
 	case datasourceVLogs:
-		parseFn = parseVLogsRangeResponse
+		parseFn = parseVLogsResponse
 	default:
 		logger.Panicf("BUG: unsupported datasource type %q to parse query range response", c.dataSourceType)
 	}
-
-	res, err = parseFn(resp)
-	if err != nil {
-		return Result{}, fmt.Errorf("error parsing response from %q: %w", req.URL.Redacted(), err)
-	}
+	res, err = parseFn(req, resp)
+	_ = resp.Body.Close()
 	return res, err
 }
 

app/vmalert/datasource/client_graphite.go

@@ -33,10 +33,10 @@ func (r graphiteResponse) metrics() []Metric {
 	return ms
 }
 
-func parseGraphiteResponse(resp *http.Response) (Result, error) {
+func parseGraphiteResponse(req *http.Request, resp *http.Response) (Result, error) {
 	r := &graphiteResponse{}
 	if err := json.NewDecoder(resp.Body).Decode(r); err != nil {
-		return Result{}, fmt.Errorf("error parsing graphite metrics: %w", err)
+		return Result{}, fmt.Errorf("error parsing graphite metrics for %s: %w", req.URL.Redacted(), err)
 	}
 	return Result{Data: r.metrics()}, nil
 }

app/vmalert/datasource/client_prom.go

@@ -9,7 +9,7 @@ import (
 	"time"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 
 	"github.com/valyala/fastjson"
 )
@@ -34,7 +34,7 @@ type promResponse struct {
 	// Stats supported by VictoriaMetrics since v1.90
 	Stats struct {
 		SeriesFetched *string `json:"seriesFetched,omitempty"`
-	} `json:"stats"`
+	} `json:"stats,omitempty"`
 	// IsPartial supported by VictoriaMetrics
 	IsPartial *bool `json:"isPartial,omitempty"`
 }
@@ -85,14 +85,14 @@ func (pi *promInstant) Unmarshal(b []byte) error {
 		labels := metric.GetObject()
 
 		r := &pi.ms[i]
-		r.Labels = make([]prompb.Label, 0, labels.Len())
+		r.Labels = make([]prompbmarshal.Label, 0, labels.Len())
 		labels.Visit(func(key []byte, v *fastjson.Value) {
 			lv, errLocal := v.StringBytes()
 			if errLocal != nil {
 				err = fmt.Errorf("error when parsing label value %q: %s", v, errLocal)
 				return
 			}
-			r.Labels = append(r.Labels, prompb.Label{
+			r.Labels = append(r.Labels, prompbmarshal.Label{
 				Name:  string(key),
 				Value: string(lv),
 			})
@@ -172,26 +172,17 @@ const (
 	rtVector, rtMatrix, rScalar = "vector", "matrix", "scalar"
 )
 
-func parsePromResponse(resp *http.Response) (*promResponse, error) {
+func parsePrometheusResponse(req *http.Request, resp *http.Response) (res Result, err error) {
 	r := &promResponse{}
-	if err := json.NewDecoder(resp.Body).Decode(r); err != nil {
-		return nil, fmt.Errorf("failed to decode response: %w", err)
+	if err = json.NewDecoder(resp.Body).Decode(r); err != nil {
+		return res, fmt.Errorf("error parsing response from %s: %w", req.URL.Redacted(), err)
 	}
 	if r.Status == statusError {
-		return nil, fmt.Errorf("response error %q: %s", r.ErrorType, r.Error)
+		return res, fmt.Errorf("response error, query: %s, errorType: %s, error: %s", req.URL.Redacted(), r.ErrorType, r.Error)
 	}
 	if r.Status != statusSuccess {
-		return nil, fmt.Errorf("unknown response status %q", r.Status)
+		return res, fmt.Errorf("unknown status: %s, Expected success or error", r.Status)
 	}
-	return r, nil
-}
-
-func parsePrometheusInstantResponse(resp *http.Response) (res Result, err error) {
-	r, err := parsePromResponse(resp)
-	if err != nil {
-		return res, fmt.Errorf("failed to parse response: %w", err)
-	}
-
 	var parseFn func() ([]Metric, error)
 	switch r.Data.ResultType {
 	case rtVector:
@@ -200,6 +191,12 @@ func parsePrometheusInstantResponse(resp *http.Response) (res Result, err error)
 			return res, fmt.Errorf("unmarshal err %w; \n %#v", err, string(r.Data.Result))
 		}
 		parseFn = pi.metrics
+	case rtMatrix:
+		var pr promRange
+		if err := json.Unmarshal(r.Data.Result, &pr.Result); err != nil {
+			return res, err
+		}
+		parseFn = pr.metrics
 	case rScalar:
 		var ps promScalar
 		if err := json.Unmarshal(r.Data.Result, &ps); err != nil {
@@ -209,6 +206,7 @@ func parsePrometheusInstantResponse(resp *http.Response) (res Result, err error)
 	default:
 		return res, fmt.Errorf("unknown result type %q", r.Data.ResultType)
 	}
+
 	ms, err := parseFn()
 	if err != nil {
 		return res, err
@@ -224,34 +222,6 @@ func parsePrometheusInstantResponse(resp *http.Response) (res Result, err error)
 	return res, nil
 }
 
-func parsePrometheusRangeResponse(resp *http.Response) (res Result, err error) {
-	r, err := parsePromResponse(resp)
-	if err != nil {
-		return res, fmt.Errorf("failed to parse response: %w", err)
-	}
-	if r.Data.ResultType != rtMatrix {
-		return res, fmt.Errorf("unexpected result type %q; expected result type %q", r.Data.ResultType, rtMatrix)
-	}
-
-	var pr promRange
-	if err := json.Unmarshal(r.Data.Result, &pr.Result); err != nil {
-		return res, err
-	}
-	ms, err := pr.metrics()
-	if err != nil {
-		return res, err
-	}
-	res = Result{Data: ms, IsPartial: r.IsPartial}
-	if r.Stats.SeriesFetched != nil {
-		intV, err := strconv.Atoi(*r.Stats.SeriesFetched)
-		if err != nil {
-			return res, fmt.Errorf("failed to convert stats.seriesFetched to int: %w", err)
-		}
-		res.SeriesFetched = &intV
-	}
-	return res, nil
-}
-
 func (c *Client) setPrometheusInstantReqParams(r *http.Request, query string, timestamp time.Time) {
 	if c.appendTypePrefix {
 		r.URL.Path += "/prometheus"

app/vmalert/datasource/client_test.go

@@ -14,7 +14,7 @@ import (
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/vmalertutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 )
 
 var (
@@ -65,23 +65,21 @@ func TestVMInstantQuery(t *testing.T) {
 		case 3:
 			w.Write([]byte(`{"status":"unknown"}`))
 		case 4:
-			w.Write([]byte(`{"status":"success","data":{"resultType":"vector"}}`))
+			w.Write([]byte(`{"status":"success","data":{"resultType":"matrix"}}`))
 		case 5:
-			w.Write([]byte(`{"status":"success","data":{"resultType":"matrix","result":[{"metric":{"__name__":"vm_rows"},"values":[[1583786142,"13763"]]}]}}`))
-		case 6:
 			w.Write([]byte(`{"status":"success","data":{"resultType":"vector","result":[{"metric":{"__name__":"vm_rows","foo":"bar"},"value":[1583786142,"13763"]},{"metric":{"__name__":"vm_requests","foo":"baz"},"value":[1583786140,"2000"]}]}}`))
-		case 7:
+		case 6:
 			w.Write([]byte(`{"status":"success","data":{"resultType":"scalar","result":[1583786142, "1"]}}`))
-		case 8:
+		case 7:
 			w.Write([]byte(`{"status":"success","data":{"resultType":"scalar","result":[1583786142, "1"]},"stats":{"seriesFetched": "42"}}`))
-		case 9:
+		case 8:
 			w.Write([]byte(`{"status":"success", "isPartial":true, "data":{"resultType":"scalar","result":[1583786142, "1"]}}`))
 		}
 	})
 	mux.HandleFunc("/render", func(w http.ResponseWriter, _ *http.Request) {
 		c++
 		switch c {
-		case 10:
+		case 9:
 			w.Write([]byte(`[{"target":"constantLine(10)","tags":{"name":"constantLine(10)"},"datapoints":[[10,1611758343],[10,1611758373],[10,1611758403]]}]`))
 		}
 	})
@@ -104,9 +102,9 @@ func TestVMInstantQuery(t *testing.T) {
 			t.Fatalf("failed to parse 'time' query param %q: %s", timeParam, err)
 		}
 		switch c {
-		case 11:
+		case 10:
 			w.Write([]byte("[]"))
-		case 12:
+		case 11:
 			w.Write([]byte(`{"status":"success","data":{"resultType":"vector","result":[{"metric":{"__name__":"total","foo":"bar"},"value":[1583786142,"13763"]},{"metric":{"__name__":"total","foo":"baz"},"value":[1583786140,"2000"]}]}}`))
 		}
 	})
@@ -125,7 +123,6 @@ func TestVMInstantQuery(t *testing.T) {
 	ts := time.Now()
 
 	expErr := func(query, err string) {
-		t.Helper()
 		_, _, gotErr := pq.Query(ctx, query, ts)
 		if gotErr == nil {
 			t.Fatalf("expected %q got nil", err)
@@ -138,11 +135,10 @@ func TestVMInstantQuery(t *testing.T) {
 	expErr(vmQuery, "500")                          // 0
 	expErr(vmQuery, "error parsing response")       // 1
 	expErr(vmQuery, "response error")               // 2
-	expErr(vmQuery, "unknown response status")      // 3
+	expErr(vmQuery, "unknown status")               // 3
 	expErr(vmQuery, "unexpected end of JSON input") // 4
-	expErr(vmQuery, "unknown result type")          // 5
 
-	res, _, err := pq.Query(ctx, vmQuery, ts) // 6 - vector
+	res, _, err := pq.Query(ctx, vmQuery, ts) // 5 - vector
 	if err != nil {
 		t.Fatalf("unexpected %s", err)
 	}
@@ -151,19 +147,19 @@ func TestVMInstantQuery(t *testing.T) {
 	}
 	expected := []Metric{
 		{
-			Labels:     []prompb.Label{{Value: "vm_rows", Name: "__name__"}, {Value: "bar", Name: "foo"}},
+			Labels:     []prompbmarshal.Label{{Value: "vm_rows", Name: "__name__"}, {Value: "bar", Name: "foo"}},
 			Timestamps: []int64{1583786142},
 			Values:     []float64{13763},
 		},
 		{
-			Labels:     []prompb.Label{{Value: "vm_requests", Name: "__name__"}, {Value: "baz", Name: "foo"}},
+			Labels:     []prompbmarshal.Label{{Value: "vm_requests", Name: "__name__"}, {Value: "baz", Name: "foo"}},
 			Timestamps: []int64{1583786140},
 			Values:     []float64{2000},
 		},
 	}
 	metricsEqual(t, res.Data, expected)
 
-	res, req, err := pq.Query(ctx, vmQuery, ts) // 7 - scalar
+	res, req, err := pq.Query(ctx, vmQuery, ts) // 6 - scalar
 	if err != nil {
 		t.Fatalf("unexpected %s", err)
 	}
@@ -188,7 +184,7 @@ func TestVMInstantQuery(t *testing.T) {
 			res.SeriesFetched)
 	}
 
-	res, _, err = pq.Query(ctx, vmQuery, ts) // 8 - scalar with stats
+	res, _, err = pq.Query(ctx, vmQuery, ts) // 7 - scalar with stats
 	if err != nil {
 		t.Fatalf("unexpected %s", err)
 	}
@@ -209,7 +205,7 @@ func TestVMInstantQuery(t *testing.T) {
 			*res.SeriesFetched)
 	}
 
-	res, _, err = pq.Query(ctx, vmQuery, ts) // 9
+	res, _, err = pq.Query(ctx, vmQuery, ts) // 8
 	if err != nil {
 		t.Fatalf("unexpected %s", err)
 	}
@@ -220,7 +216,7 @@ func TestVMInstantQuery(t *testing.T) {
 	// test graphite
 	gq := s.BuildWithParams(QuerierParams{DataSourceType: string(datasourceGraphite)})
 
-	res, _, err = gq.Query(ctx, queryRender, ts) // 10 - graphite
+	res, _, err = gq.Query(ctx, queryRender, ts) // 9 - graphite
 	if err != nil {
 		t.Fatalf("unexpected %s", err)
 	}
@@ -229,7 +225,7 @@ func TestVMInstantQuery(t *testing.T) {
 	}
 	exp := []Metric{
 		{
-			Labels:     []prompb.Label{{Value: "constantLine(10)", Name: "name"}},
+			Labels:     []prompbmarshal.Label{{Value: "constantLine(10)", Name: "name"}},
 			Timestamps: []int64{1611758403},
 			Values:     []float64{10},
 		},
@@ -240,9 +236,9 @@ func TestVMInstantQuery(t *testing.T) {
 	vlogs := datasourceVLogs
 	pq = s.BuildWithParams(QuerierParams{DataSourceType: string(vlogs), EvaluationInterval: 15 * time.Second})
 
-	expErr(vlogsQuery, "error parsing response") // 11
+	expErr(vlogsQuery, "error parsing response") // 10
 
-	res, _, err = pq.Query(ctx, vlogsQuery, ts) // 12
+	res, _, err = pq.Query(ctx, vlogsQuery, ts) // 11
 	if err != nil {
 		t.Fatalf("unexpected %s", err)
 	}
@@ -251,12 +247,12 @@ func TestVMInstantQuery(t *testing.T) {
 	}
 	expected = []Metric{
 		{
-			Labels:     []prompb.Label{{Value: "total", Name: "stats_result"}, {Value: "bar", Name: "foo"}},
+			Labels:     []prompbmarshal.Label{{Value: "total", Name: "stats_result"}, {Value: "bar", Name: "foo"}},
 			Timestamps: []int64{1583786142},
 			Values:     []float64{13763},
 		},
 		{
-			Labels:     []prompb.Label{{Value: "total", Name: "stats_result"}, {Value: "baz", Name: "foo"}},
+			Labels:     []prompbmarshal.Label{{Value: "total", Name: "stats_result"}, {Value: "baz", Name: "foo"}},
 			Timestamps: []int64{1583786140},
 			Values:     []float64{2000},
 		},
@@ -394,8 +390,6 @@ func TestVMRangeQuery(t *testing.T) {
 		switch c {
 		case 0:
 			w.Write([]byte(`{"status":"success","data":{"resultType":"matrix","result":[{"metric":{"__name__":"vm_rows"},"values":[[1583786142,"13763"]]}]}}`))
-		case 1:
-			w.Write([]byte(`{"status":"success","data":{"resultType":"vector","result":[1583786142, "1"]}}`))
 		}
 	})
 	mux.HandleFunc("/select/logsql/stats_query_range", func(w http.ResponseWriter, r *http.Request) {
@@ -428,7 +422,7 @@ func TestVMRangeQuery(t *testing.T) {
 			t.Fatalf("expected 'step' query param to be 60s; got %q instead", step)
 		}
 		switch c {
-		case 2:
+		case 1:
 			w.Write([]byte(`{"status":"success","data":{"resultType":"matrix","result":[{"metric":{"__name__":"total"},"values":[[1583786142,"10"]]}]}}`))
 		}
 	})
@@ -452,16 +446,16 @@ func TestVMRangeQuery(t *testing.T) {
 
 	start, end := time.Now().Add(-time.Minute), time.Now()
 
-	res, err := pq.QueryRange(ctx, vmQuery, start, end) // case 0
+	res, err := pq.QueryRange(ctx, vmQuery, start, end)
 	if err != nil {
 		t.Fatalf("unexpected %s", err)
 	}
 	m := res.Data
 	if len(m) != 1 {
-		t.Fatalf("expected 1 metric got %d in %+v", len(m), m)
+		t.Fatalf("expected 1 metric  got %d in %+v", len(m), m)
 	}
 	expected := Metric{
-		Labels:     []prompb.Label{{Value: "vm_rows", Name: "__name__"}},
+		Labels:     []prompbmarshal.Label{{Value: "vm_rows", Name: "__name__"}},
 		Timestamps: []int64{1583786142},
 		Values:     []float64{13763},
 	}
@@ -469,9 +463,6 @@ func TestVMRangeQuery(t *testing.T) {
 		t.Fatalf("unexpected metric %+v want %+v", m[0], expected)
 	}
 
-	_, err = pq.QueryRange(ctx, vmQuery, start, end) // case 1
-	expectError(t, err, "unexpected result type")
-
 	// test unsupported graphite
 	gq := s.BuildWithParams(QuerierParams{DataSourceType: string(datasourceGraphite)})
 
@@ -495,7 +486,7 @@ func TestVMRangeQuery(t *testing.T) {
 		t.Fatalf("expected 1 metric  got %d in %+v", len(m), m)
 	}
 	expected = Metric{
-		Labels:     []prompb.Label{{Value: "total", Name: "stats_result"}},
+		Labels:     []prompbmarshal.Label{{Value: "total", Name: "stats_result"}},
 		Timestamps: []int64{1583786142},
 		Values:     []float64{10},
 	}
@@ -772,7 +763,7 @@ func TestHeaders(t *testing.T) {
 
 	// basic auth
 	f(func() *Client {
-		cfg, err := vmalertutil.AuthConfig(vmalertutil.WithBasicAuth("foo", "", "bar", ""))
+		cfg, err := vmalertutil.AuthConfig(vmalertutil.WithBasicAuth("foo", "bar", ""))
 		if err != nil {
 			t.Fatalf("Error get auth config: %s", err)
 		}
@@ -817,7 +808,7 @@ func TestHeaders(t *testing.T) {
 
 	// custom header overrides basic auth
 	f(func() *Client {
-		cfg, err := vmalertutil.AuthConfig(vmalertutil.WithBasicAuth("foo", "", "bar", ""))
+		cfg, err := vmalertutil.AuthConfig(vmalertutil.WithBasicAuth("foo", "bar", ""))
 		if err != nil {
 			t.Fatalf("Error get auth config: %s", err)
 		}

app/vmalert/datasource/client_vlogs.go

@@ -40,28 +40,8 @@ func (c *Client) setVLogsRangeReqParams(r *http.Request, query string, start, en
 	c.setReqParams(r, query)
 }
 
-func parseVLogsInstantResponse(resp *http.Response) (res Result, err error) {
-	res, err = parsePrometheusInstantResponse(resp)
-	if err != nil {
-		return Result{}, err
-	}
-	for i := range res.Data {
-		m := &res.Data[i]
-		for j := range m.Labels {
-			// reserve the stats func result name with a new label `stats_result` instead of dropping it,
-			// since there could be multiple stats results in a single query, for instance:
-			// 	_time:5m | stats quantile(0.5, request_duration_seconds) p50, quantile(0.9, request_duration_seconds) p90
-			if m.Labels[j].Name == "__name__" {
-				m.Labels[j].Name = "stats_result"
-				break
-			}
-		}
-	}
-	return
-}
-
-func parseVLogsRangeResponse(resp *http.Response) (res Result, err error) {
-	res, err = parsePrometheusRangeResponse(resp)
+func parseVLogsResponse(req *http.Request, resp *http.Response) (res Result, err error) {
+	res, err = parsePrometheusResponse(req, resp)
 	if err != nil {
 		return Result{}, err
 	}

app/vmalert/datasource/datasource.go

@@ -9,7 +9,7 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 )
 
 // Querier interface wraps Query and QueryRange methods
@@ -60,7 +60,7 @@ type QuerierParams struct {
 
 // Metric is the basic entity which should be return by datasource
 type Metric struct {
-	Labels     []prompb.Label
+	Labels     []prompbmarshal.Label
 	Timestamps []int64
 	Values     []float64
 }
@@ -79,7 +79,7 @@ func (m *Metric) SetLabel(key, value string) {
 
 // AddLabel appends the given label to the label set
 func (m *Metric) AddLabel(key, value string) {
-	m.Labels = append(m.Labels, prompb.Label{Name: key, Value: value})
+	m.Labels = append(m.Labels, prompbmarshal.Label{Name: key, Value: value})
 }
 
 // DelLabel deletes the given label from the label set
@@ -87,7 +87,6 @@ func (m *Metric) DelLabel(key string) {
 	for i, l := range m.Labels {
 		if l.Name == key {
 			m.Labels = append(m.Labels[:i], m.Labels[i+1:]...)
-			break
 		}
 	}
 }
@@ -104,7 +103,7 @@ func (m *Metric) Label(key string) string {
 }
 
 // Labels is collection of Label
-type Labels []prompb.Label
+type Labels []prompbmarshal.Label
 
 func (ls Labels) Len() int           { return len(ls) }
 func (ls Labels) Swap(i, j int)      { ls[i], ls[j] = ls[j], ls[i] }
@@ -133,9 +132,12 @@ func (ls Labels) String() string {
 // a=[]Label{{Name: "a", Value: "2"}},b=[]Label{{Name: "a", Value: "1"}}, return 1
 // a=[]Label{{Name: "a", Value: "1"}},b=[]Label{{Name: "a", Value: "1"}}, return 0
 func LabelCompare(a, b Labels) int {
-	l := min(len(b), len(a))
+	l := len(a)
+	if len(b) < l {
+		l = len(b)
+	}
 
-	for i := range l {
+	for i := 0; i < l; i++ {
 		if a[i].Name != b[i].Name {
 			if a[i].Name < b[i].Name {
 				return -1
@@ -156,7 +158,7 @@ func LabelCompare(a, b Labels) int {
 // ConvertToLabels convert map to Labels
 func ConvertToLabels(m map[string]string) (labelset Labels) {
 	for k, v := range m {
-		labelset = append(labelset, prompb.Label{
+		labelset = append(labelset, prompbmarshal.Label{
 			Name:  k,
 			Value: v,
 		})

app/vmalert/datasource/init.go

@@ -27,7 +27,6 @@ var (
 		"Multiple headers must be delimited by '^^': -datasource.headers='header1:value1^^header2:value2'")
 
 	basicAuthUsername     = flag.String("datasource.basicAuth.username", "", "Optional basic auth username for -datasource.url")
-	basicAuthUsernameFile = flag.String("datasource.basicAuth.usernameFile", "", "Optional path to basic auth username to use for -datasource.url")
 	basicAuthPassword     = flag.String("datasource.basicAuth.password", "", "Optional basic auth password for -datasource.url")
 	basicAuthPasswordFile = flag.String("datasource.basicAuth.passwordFile", "", "Optional path to basic auth password to use for -datasource.url")
 
@@ -106,7 +105,7 @@ func Init(extraParams url.Values) (QuerierBuilder, error) {
 		return nil, fmt.Errorf("cannot parse JSON for -datasource.oauth2.endpointParams=%s: %w", *oauth2EndpointParams, err)
 	}
 	authCfg, err := vmalertutil.AuthConfig(
-		vmalertutil.WithBasicAuth(*basicAuthUsername, *basicAuthUsernameFile, *basicAuthPassword, *basicAuthPasswordFile),
+		vmalertutil.WithBasicAuth(*basicAuthUsername, *basicAuthPassword, *basicAuthPasswordFile),
 		vmalertutil.WithBearer(*bearerToken, *bearerTokenFile),
 		vmalertutil.WithOAuth(*oauth2ClientID, *oauth2ClientSecret, *oauth2ClientSecretFile, *oauth2TokenURL, *oauth2Scopes, endpointParams),
 		vmalertutil.WithHeaders(*headers))

app/vmalert/datasource/vm_prom_api_test.go

@@ -4,7 +4,7 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 )
 
 func TestPromInstant_UnmarshalPositive(t *testing.T) {
@@ -23,7 +23,7 @@ func TestPromInstant_UnmarshalPositive(t *testing.T) {
 
 	f(`[{"metric":{"__name__":"up"},"value":[1583780000,"42"]}]`, []Metric{
 		{
-			Labels:     []prompb.Label{{Name: "__name__", Value: "up"}},
+			Labels:     []prompbmarshal.Label{{Name: "__name__", Value: "up"}},
 			Timestamps: []int64{1583780000},
 			Values:     []float64{42},
 		},
@@ -33,17 +33,17 @@ func TestPromInstant_UnmarshalPositive(t *testing.T) {
 {"metric":{"__name__":"foo"},"value":[1583780001,"7"]},
 {"metric":{"__name__":"baz", "instance":"bar"},"value":[1583780002,"8"]}]`, []Metric{
 		{
-			Labels:     []prompb.Label{{Name: "__name__", Value: "up"}},
+			Labels:     []prompbmarshal.Label{{Name: "__name__", Value: "up"}},
 			Timestamps: []int64{1583780000},
 			Values:     []float64{42},
 		},
 		{
-			Labels:     []prompb.Label{{Name: "__name__", Value: "foo"}},
+			Labels:     []prompbmarshal.Label{{Name: "__name__", Value: "foo"}},
 			Timestamps: []int64{1583780001},
 			Values:     []float64{7},
 		},
 		{
-			Labels:     []prompb.Label{{Name: "__name__", Value: "baz"}, {Name: "instance", Value: "bar"}},
+			Labels:     []prompbmarshal.Label{{Name: "__name__", Value: "baz"}, {Name: "instance", Value: "bar"}},
 			Timestamps: []int64{1583780002},
 			Values:     []float64{8},
 		},

app/vmalert/datasource/vm_prom_api_timing_test.go

@@ -13,7 +13,7 @@ func BenchmarkPromInstantUnmarshal(b *testing.B) {
 
 	// BenchmarkParsePrometheusResponse/Instant_std+fastjson-10                    1760            668959 ns/op          280147 B/op       5781 allocs/op
 	b.Run("Instant std+fastjson", func(b *testing.B) {
-		for range b.N {
+		for i := 0; i < b.N; i++ {
 			var pi promInstant
 			err = pi.Unmarshal(data)
 			if err != nil {

app/vmalert/main.go

@@ -7,6 +7,7 @@ import (
 	"net/url"
 	"os"
 	"sort"
+	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -56,7 +57,7 @@ absolute path to all .tpl files in root.
  -rule.templates="dir/**/*.tpl". Includes all the .tpl files in "dir" subfolders recursively.
 `)
 
-	configCheckInterval = flag.Duration("configCheckInterval", 0, "Interval for checking for changes in '-rule', '-rule.templates' and '-notifier.config' files. "+
+	configCheckInterval = flag.Duration("configCheckInterval", 0, "Interval for checking for changes in '-rule' or '-notifier.config' files. "+
 		"By default, the checking is disabled. Send SIGHUP signal in order to force config check for changes.")
 
 	httpListenAddrs  = flagutil.NewArrayString("httpListenAddr", "Address to listen for incoming http requests. See also -tls and -httpListenAddr.useProxyProtocol")
@@ -76,12 +77,15 @@ absolute path to all .tpl files in root.
 		`Link to VMUI: -external.alert.source='vmui/#/?g0.expr={{.Expr|queryEscape}}'. `+
 		`If empty 'vmalert/alert?group_id={{.GroupID}}&alert_id={{.AlertID}}' is used.`)
 	externalLabels = flagutil.NewArrayString("external.label", "Optional label in the form 'Name=value' to add to all generated recording rules and alerts. "+
-		"In case of conflicts, original labels are kept with prefix 'exported_'.")
+		"In case of conflicts, original labels are kept with prefix `exported_`.")
 
 	dryRun = flag.Bool("dryRun", false, "Whether to check only config files without running vmalert. The rules file are validated. The -rule flag must be specified.")
 )
 
-var extURL *url.URL
+var (
+	alertURLGeneratorFn notifier.AlertURLGenerator
+	extURL              *url.URL
+)
 
 func main() {
 	// Write flags and help message to stdout, since it is easier to grep or pipe.
@@ -117,7 +121,7 @@ func main() {
 		return
 	}
 
-	err = notifier.InitAlertURLGeneratorFn(extURL, *externalAlertSource, *validateTemplates)
+	alertURLGeneratorFn, err = getAlertURLGenerator(extURL, *externalAlertSource, *validateTemplates)
 	if err != nil {
 		logger.Fatalf("failed to init `external.alert.source`: %s", err)
 	}
@@ -159,7 +163,7 @@ func main() {
 	ctx, cancel := context.WithCancel(context.Background())
 	manager, err := newManager(ctx)
 	if err != nil {
-		logger.Fatalf("failed to create manager: %s", err)
+		logger.Fatalf("failed to init: %s", err)
 	}
 	logger.Infof("reading rules configuration file from %q", strings.Join(*rulePath, ";"))
 	groupsCfg, err := config.Parse(*rulePath, validateTplFn, *validateExpressions)
@@ -224,13 +228,14 @@ func newManager(ctx context.Context) (*manager, error) {
 		labels[s[:n]] = s[n+1:]
 	}
 
-	err = notifier.Init(labels, *externalURL)
+	nts, err := notifier.Init(alertURLGeneratorFn, labels, *externalURL)
 	if err != nil {
 		return nil, fmt.Errorf("failed to init notifier: %w", err)
 	}
 	manager := &manager{
 		groups:         make(map[uint64]*rule.Group),
 		querierBuilder: q,
+		notifiers:      nts,
 		labels:         labels,
 	}
 	rw, err := remotewrite.Init(ctx)
@@ -287,6 +292,35 @@ func getHostnameAsExternalURL(addr string, isSecure bool) (*url.URL, error) {
 	return url.Parse(fmt.Sprintf("%s%s%s", schema, hname, port))
 }
 
+func getAlertURLGenerator(externalURL *url.URL, externalAlertSource string, validateTemplate bool) (notifier.AlertURLGenerator, error) {
+	if externalAlertSource == "" {
+		return func(a notifier.Alert) string {
+			gID, aID := strconv.FormatUint(a.GroupID, 10), strconv.FormatUint(a.ID, 10)
+			return fmt.Sprintf("%s/vmalert/alert?%s=%s&%s=%s", externalURL, paramGroupID, gID, paramAlertID, aID)
+		}, nil
+	}
+	if validateTemplate {
+		if err := notifier.ValidateTemplates(map[string]string{
+			"tpl": externalAlertSource,
+		}); err != nil {
+			return nil, fmt.Errorf("error validating source template %s: %w", externalAlertSource, err)
+		}
+	}
+	m := map[string]string{
+		"tpl": externalAlertSource,
+	}
+	return func(alert notifier.Alert) string {
+		qFn := func(_ string) ([]datasource.Metric, error) {
+			return nil, fmt.Errorf("`query` template isn't supported for alert source template")
+		}
+		templated, err := alert.ExecTemplate(qFn, alert.Labels, m)
+		if err != nil {
+			logger.Errorf("cannot template alert source: %s", err)
+		}
+		return fmt.Sprintf("%s/%s", externalURL, templated["tpl"])
+	}, nil
+}
+
 func usage() {
 	const s = `
 vmalert processes alerts and recording rules.

app/vmalert/main_test.go

@@ -12,7 +12,6 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/notifier"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/rule"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/procutil"
 )
 
@@ -49,6 +48,30 @@ func TestGetExternalURL(t *testing.T) {
 	}
 }
 
+func TestGetAlertURLGenerator(t *testing.T) {
+	testAlert := notifier.Alert{GroupID: 42, ID: 2, Value: 4, Labels: map[string]string{"tenant": "baz"}}
+	u, _ := url.Parse("https://victoriametrics.com/path")
+	fn, err := getAlertURLGenerator(u, "", false)
+	if err != nil {
+		t.Fatalf("unexpected error %s", err)
+	}
+	exp := fmt.Sprintf("https://victoriametrics.com/path/vmalert/alert?%s=42&%s=2", paramGroupID, paramAlertID)
+	if exp != fn(testAlert) {
+		t.Fatalf("unexpected url want %s, got %s", exp, fn(testAlert))
+	}
+	_, err = getAlertURLGenerator(nil, "foo?{{invalid}}", true)
+	if err == nil {
+		t.Fatalf("expected template validation error got nil")
+	}
+	fn, err = getAlertURLGenerator(u, "foo?query={{$value}}&ds={{ $labels.tenant }}", true)
+	if err != nil {
+		t.Fatalf("unexpected error %s", err)
+	}
+	if exp := "https://victoriametrics.com/path/foo?query=4&ds=baz"; exp != fn(testAlert) {
+		t.Fatalf("unexpected url want %s, got %s", exp, fn(testAlert))
+	}
+}
+
 func TestConfigReload(t *testing.T) {
 	originalRulePath := *rulePath
 	originalExternalURL := extURL
@@ -85,8 +108,8 @@ groups:
 	if err != nil {
 		t.Fatal(err)
 	}
-	defer fs.MustRemovePath(f.Name())
-	writeToFile(f.Name(), rules1)
+	defer func() { _ = os.Remove(f.Name()) }()
+	writeToFile(t, f.Name(), rules1)
 
 	*configCheckInterval = 200 * time.Millisecond
 	*rulePath = []string{f.Name()}
@@ -96,10 +119,9 @@ groups:
 		querierBuilder: &datasource.FakeQuerier{},
 		groups:         make(map[uint64]*rule.Group),
 		labels:         map[string]string{},
+		notifiers:      func() []notifier.Notifier { return []notifier.Notifier{&notifier.FakeNotifier{}} },
 		rw:             &remotewrite.Client{},
 	}
-	_, cleanup := notifier.InitFakeNotifier()
-	defer cleanup()
 
 	syncCh := make(chan struct{})
 	sighupCh := procutil.NewSighupChan()
@@ -142,7 +164,7 @@ groups:
 		t.Fatalf("expected to have exactly 1 group loaded; got %d", groupsLen)
 	}
 
-	writeToFile(f.Name(), rules2)
+	writeToFile(t, f.Name(), rules2)
 	time.Sleep(*configCheckInterval * 2)
 	checkCfg(nil)
 	groupsLen = lenLocked(m)
@@ -150,7 +172,7 @@ groups:
 		t.Fatalf("expected to have exactly 2 groups loaded; got %d", groupsLen)
 	}
 
-	writeToFile(f.Name(), rules1)
+	writeToFile(t, f.Name(), rules1)
 	procutil.SelfSIGHUP()
 	time.Sleep(*configCheckInterval / 2)
 	checkCfg(nil)
@@ -159,7 +181,7 @@ groups:
 		t.Fatalf("expected to have exactly 1 group loaded; got %d", groupsLen)
 	}
 
-	writeToFile(f.Name(), `corrupted`)
+	writeToFile(t, f.Name(), `corrupted`)
 	procutil.SelfSIGHUP()
 	time.Sleep(*configCheckInterval / 2)
 	checkCfg(fmt.Errorf("config error"))
@@ -172,6 +194,10 @@ groups:
 	<-syncCh
 }
 
-func writeToFile(file, b string) {
-	fs.MustWriteSync(file, []byte(b))
+func writeToFile(t *testing.T, file, b string) {
+	t.Helper()
+	err := os.WriteFile(file, []byte(b), 0644)
+	if err != nil {
+		t.Fatal(err)
+	}
 }

app/vmalert/manager.go

@@ -3,7 +3,6 @@ package main
 import (
 	"context"
 	"fmt"
-	"strconv"
 	"sync"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/config"
@@ -17,6 +16,7 @@ import (
 // manager controls group states
 type manager struct {
 	querierBuilder datasource.QuerierBuilder
+	notifiers      func() []notifier.Notifier
 
 	rw remotewrite.RWClient
 	// remote read builder.
@@ -29,8 +29,25 @@ type manager struct {
 	groups   map[uint64]*rule.Group
 }
 
-// groupAPI generates apiGroup object from group by its ID(hash)
-func (m *manager) groupAPI(gID uint64) (*rule.ApiGroup, error) {
+// ruleAPI generates apiRule object from alert by its ID(hash)
+func (m *manager) ruleAPI(gID, rID uint64) (apiRule, error) {
+	m.groupsMu.RLock()
+	defer m.groupsMu.RUnlock()
+
+	g, ok := m.groups[gID]
+	if !ok {
+		return apiRule{}, fmt.Errorf("can't find group with id %d", gID)
+	}
+	for _, rule := range g.Rules {
+		if rule.ID() == rID {
+			return ruleToAPI(rule), nil
+		}
+	}
+	return apiRule{}, fmt.Errorf("can't find rule with id %d in group %q", rID, g.Name)
+}
+
+// alertAPI generates apiAlert object from alert by its ID(hash)
+func (m *manager) alertAPI(gID, aID uint64) (*apiAlert, error) {
 	m.groupsMu.RLock()
 	defer m.groupsMu.RUnlock()
 
@@ -38,47 +55,13 @@ func (m *manager) groupAPI(gID uint64) (*rule.ApiGroup, error) {
 	if !ok {
 		return nil, fmt.Errorf("can't find group with id %d", gID)
 	}
-	return g.ToAPI(), nil
-}
-
-// ruleAPI generates apiRule object from alert by its ID(hash)
-func (m *manager) ruleAPI(gID, rID uint64) (rule.ApiRule, error) {
-	m.groupsMu.RLock()
-	defer m.groupsMu.RUnlock()
-
-	group, ok := m.groups[gID]
-	if !ok {
-		return rule.ApiRule{}, fmt.Errorf("can't find group with id %d", gID)
-	}
-	g := group.ToAPI()
-	ruleID := strconv.FormatUint(rID, 10)
 	for _, r := range g.Rules {
-		if r.ID == ruleID {
-			return r, nil
-		}
-	}
-	return rule.ApiRule{}, fmt.Errorf("can't find rule with id %d in group %q", rID, g.Name)
-}
-
-// alertAPI generates apiAlert object from alert by its ID(hash)
-func (m *manager) alertAPI(gID, aID uint64) (*rule.ApiAlert, error) {
-	m.groupsMu.RLock()
-	defer m.groupsMu.RUnlock()
-
-	group, ok := m.groups[gID]
-	if !ok {
-		return nil, fmt.Errorf("can't find group with id %d", gID)
-	}
-	g := group.ToAPI()
-	for _, r := range g.Rules {
-		if r.Type != rule.TypeAlerting {
+		ar, ok := r.(*rule.AlertingRule)
+		if !ok {
 			continue
 		}
-		alertID := strconv.FormatUint(aID, 10)
-		for _, a := range r.Alerts {
-			if a.ID == alertID {
-				return a, nil
-			}
+		if apiAlert := alertToAPI(ar, aID); apiAlert != nil {
+			return apiAlert, nil
 		}
 	}
 	return nil, fmt.Errorf("can't find alert with id %d in group %q", aID, g.Name)
@@ -98,18 +81,20 @@ func (m *manager) close() {
 	m.wg.Wait()
 }
 
-func (m *manager) startGroup(ctx context.Context, g *rule.Group, restore bool) {
+func (m *manager) startGroup(ctx context.Context, g *rule.Group, restore bool) error {
+	m.wg.Add(1)
 	id := g.GetID()
 	g.Init()
-	m.wg.Go(func() {
+	go func() {
+		defer m.wg.Done()
 		if restore {
-			g.Start(ctx, m.rw, m.rr)
+			g.Start(ctx, m.notifiers, m.rw, m.rr)
 		} else {
-			g.Start(ctx, m.rw, nil)
+			g.Start(ctx, m.notifiers, m.rw, nil)
 		}
-	})
-
+	}()
 	m.groups[id] = g
+	return nil
 }
 
 func (m *manager) update(ctx context.Context, groupsCfg []config.Group, restore bool) error {
@@ -118,7 +103,7 @@ func (m *manager) update(ctx context.Context, groupsCfg []config.Group, restore
 	for _, cfg := range groupsCfg {
 		for _, r := range cfg.Rules {
 			if rrPresent && arPresent {
-				break
+				continue
 			}
 			if r.Record != "" {
 				rrPresent = true
@@ -134,7 +119,7 @@ func (m *manager) update(ctx context.Context, groupsCfg []config.Group, restore
 	if rrPresent && m.rw == nil {
 		return fmt.Errorf("config contains recording rules but `-remoteWrite.url` isn't set")
 	}
-	if arPresent && notifier.GetTargets() == nil {
+	if arPresent && m.notifiers == nil {
 		return fmt.Errorf("config contains alerting rules but neither `-notifier.url` nor `-notifier.config` nor `-notifier.blackhole` aren't set")
 	}
 
@@ -161,22 +146,25 @@ func (m *manager) update(ctx context.Context, groupsCfg []config.Group, restore
 		}
 	}
 	for _, ng := range groupsRegistry {
-		m.startGroup(ctx, ng, restore)
+		if err := m.startGroup(ctx, ng, restore); err != nil {
+			m.groupsMu.Unlock()
+			return err
+		}
 	}
 	m.groupsMu.Unlock()
 
 	if len(toUpdate) > 0 {
 		var wg sync.WaitGroup
 		for _, item := range toUpdate {
-			oldG := item.old
-			newG := item.new
-			wg.Go(func() {
-				// cancel evaluation so the Update will be applied as fast as possible.
-				// it is important to call InterruptEval before the update, because cancel fn
-				// can be re-assigned during the update.
-				oldG.InterruptEval()
-				oldG.UpdateWith(newG)
-			})
+			wg.Add(1)
+			// cancel evaluation so the Update will be applied as fast as possible.
+			// it is important to call InterruptEval before the update, because cancel fn
+			// can be re-assigned during the update.
+			item.old.InterruptEval()
+			go func(oldGroup *rule.Group, newGroup *rule.Group) {
+				oldGroup.UpdateWith(newGroup)
+				wg.Done()
+			}(item.old, item.new)
 		}
 		wg.Wait()
 	}

app/vmalert/manager_test.go

@@ -40,11 +40,10 @@ func TestManagerEmptyRulesDir(t *testing.T) {
 // execution of configuration update.
 // Should be executed with -race flag
 func TestManagerUpdateConcurrent(t *testing.T) {
-	_, cleanup := notifier.InitFakeNotifier()
-	defer cleanup()
 	m := &manager{
 		groups:         make(map[uint64]*rule.Group),
 		querierBuilder: &datasource.FakeQuerier{},
+		notifiers:      func() []notifier.Notifier { return []notifier.Notifier{&notifier.FakeNotifier{}} },
 	}
 	paths := []string{
 		"config/testdata/dir/rules0-good.rules",
@@ -65,11 +64,13 @@ func TestManagerUpdateConcurrent(t *testing.T) {
 
 	const workers = 500
 	const iterations = 10
-	var wg sync.WaitGroup
-	for n := range workers {
-		wg.Go(func() {
+	wg := sync.WaitGroup{}
+	wg.Add(workers)
+	for i := 0; i < workers; i++ {
+		go func(n int) {
+			defer wg.Done()
 			r := rand.New(rand.NewSource(int64(n)))
-			for range iterations {
+			for i := 0; i < iterations; i++ {
 				rnd := r.Intn(len(paths))
 				cfg, err := config.Parse([]string{paths[rnd]}, notifier.ValidateTemplates, true)
 				if err != nil { // update can fail and this is expected
@@ -77,7 +78,7 @@ func TestManagerUpdateConcurrent(t *testing.T) {
 				}
 				_ = m.update(context.Background(), cfg, false)
 			}
-		})
+		}(i)
 	}
 	wg.Wait()
 }
@@ -126,9 +127,8 @@ func TestManagerUpdate_Success(t *testing.T) {
 		m := &manager{
 			groups:         make(map[uint64]*rule.Group),
 			querierBuilder: &datasource.FakeQuerier{},
+			notifiers:      func() []notifier.Notifier { return []notifier.Notifier{&notifier.FakeNotifier{}} },
 		}
-		_, cleanup := notifier.InitFakeNotifier()
-		defer cleanup()
 
 		cfgInit := loadCfg(t, []string{initPath}, true, true)
 		if err := m.update(ctx, cfgInit, false); err != nil {
@@ -259,7 +259,7 @@ func compareGroups(t *testing.T, a, b *rule.Group) {
 	for i, r := range a.Rules {
 		got, want := r, b.Rules[i]
 		if a.CreateID() != b.CreateID() {
-			t.Fatalf("expected to have rule %d; got %d", want.ID(), got.ID())
+			t.Fatalf("expected to have rule %q; got %q", want.ID(), got.ID())
 		}
 		if err := rule.CompareRules(t, want, got); err != nil {
 			t.Fatalf("comparison error: %s", err)
@@ -277,8 +277,7 @@ func TestManagerUpdate_Failure(t *testing.T) {
 			rw:             rw,
 		}
 		if notifiers != nil {
-			_, cleanup := notifier.InitFakeNotifier()
-			defer cleanup()
+			m.notifiers = func() []notifier.Notifier { return notifiers }
 		}
 		err := m.update(context.Background(), []config.Group{cfg}, false)
 		if err == nil {

app/vmalert/notifier/alert.go

@@ -10,7 +10,7 @@ import (
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/templates"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/vmalertutil"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
 )
 
@@ -80,15 +80,14 @@ func (as AlertState) String() string {
 
 // AlertTplData is used to execute templating
 type AlertTplData struct {
-	Type      string
-	Labels    map[string]string
-	Value     float64
-	Expr      string
-	AlertID   uint64
-	GroupID   uint64
-	ActiveAt  time.Time
-	For       time.Duration
-	IsPartial bool
+	Type     string
+	Labels   map[string]string
+	Value    float64
+	Expr     string
+	AlertID  uint64
+	GroupID  uint64
+	ActiveAt time.Time
+	For      time.Duration
 }
 
 var tplHeaders = []string{
@@ -102,7 +101,6 @@ var tplHeaders = []string{
 	"{{ $groupID := .GroupID }}",
 	"{{ $activeAt := .ActiveAt }}",
 	"{{ $for := .For }}",
-	"{{ $isPartial := .IsPartial }}",
 }
 
 // ExecTemplate executes the Alert template for given
@@ -168,8 +166,8 @@ func templateAnnotations(annotations map[string]string, data AlertTplData, tmpl
 		ctmpl, _ := tmpl.Clone()
 		ctmpl = ctmpl.Option("missingkey=zero")
 		if err := templateAnnotation(&buf, builder.String(), tData, ctmpl, execute); err != nil {
-			r[key] = err.Error()
-			eg.Add(fmt.Errorf("(key: %q, value: %q): %w", key, text, err))
+			r[key] = text
+			eg.Add(fmt.Errorf("key %q, template %q: %w", key, text, err))
 			continue
 		}
 		r[key] = buf.String()
@@ -186,21 +184,21 @@ type tplData struct {
 func templateAnnotation(dst io.Writer, text string, data tplData, tpl *textTpl.Template, execute bool) error {
 	tpl, err := tpl.Parse(text)
 	if err != nil {
-		return fmt.Errorf("error parsing template: %w", err)
+		return fmt.Errorf("error parsing annotation template: %w", err)
 	}
 	if !execute {
 		return nil
 	}
 	if err = tpl.Execute(dst, data); err != nil {
-		return fmt.Errorf("error evaluating template: %w", err)
+		return fmt.Errorf("error evaluating annotation template: %w", err)
 	}
 	return nil
 }
 
-func (a Alert) applyRelabelingIfNeeded(relabelCfg *promrelabel.ParsedConfigs) []prompb.Label {
-	var labels []prompb.Label
+func (a Alert) applyRelabelingIfNeeded(relabelCfg *promrelabel.ParsedConfigs) []prompbmarshal.Label {
+	var labels []prompbmarshal.Label
 	for k, v := range a.Labels {
-		labels = append(labels, prompb.Label{
+		labels = append(labels, prompbmarshal.Label{
 			Name:  promrelabel.SanitizeMetricName(k),
 			Value: v,
 		})

app/vmalert/notifier/alert_test.go

@@ -7,7 +7,7 @@ import (
 	"time"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/datasource"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
 )
 
@@ -20,7 +20,7 @@ func TestAlertExecTemplate(t *testing.T) {
 	)
 	extLabels["cluster"] = extCluster
 	extLabels["dc"] = extDC
-	err := Init(extLabels, extURL)
+	_, err := Init(nil, extLabels, extURL)
 	checkErr(t, err)
 
 	f := func(alert *Alert, annotations map[string]string, tplExpected map[string]string) {
@@ -33,7 +33,7 @@ func TestAlertExecTemplate(t *testing.T) {
 		qFn := func(_ string) ([]datasource.Metric, error) {
 			return []datasource.Metric{
 				{
-					Labels: []prompb.Label{
+					Labels: []prompbmarshal.Label{
 						{Name: "foo", Value: "bar"},
 						{Name: "baz", Value: "qux"},
 					},
@@ -41,7 +41,7 @@ func TestAlertExecTemplate(t *testing.T) {
 					Timestamps: []int64{1},
 				},
 				{
-					Labels: []prompb.Label{
+					Labels: []prompbmarshal.Label{
 						{Name: "foo", Value: "garply"},
 						{Name: "baz", Value: "fred"},
 					},
@@ -213,7 +213,7 @@ func TestAlertExecTemplate(t *testing.T) {
 }
 
 func TestAlert_toPromLabels(t *testing.T) {
-	fn := func(labels map[string]string, exp []prompb.Label, relabel *promrelabel.ParsedConfigs) {
+	fn := func(labels map[string]string, exp []prompbmarshal.Label, relabel *promrelabel.ParsedConfigs) {
 		t.Helper()
 		a := Alert{Labels: labels}
 		got := a.applyRelabelingIfNeeded(relabel)
@@ -226,12 +226,12 @@ func TestAlert_toPromLabels(t *testing.T) {
 	fn(nil, nil, nil)
 	fn(
 		map[string]string{"foo": "bar", "a": "baz"}, // unsorted
-		[]prompb.Label{{Name: "a", Value: "baz"}, {Name: "foo", Value: "bar"}},
+		[]prompbmarshal.Label{{Name: "a", Value: "baz"}, {Name: "foo", Value: "bar"}},
 		nil,
 	)
 	fn(
 		map[string]string{"foo.bar": "baz", "service!name": "qux"},
-		[]prompb.Label{{Name: "foo_bar", Value: "baz"}, {Name: "service_name", Value: "qux"}},
+		[]prompbmarshal.Label{{Name: "foo_bar", Value: "baz"}, {Name: "service_name", Value: "qux"}},
 		nil,
 	)
 
@@ -247,17 +247,17 @@ func TestAlert_toPromLabels(t *testing.T) {
 
 	fn(
 		map[string]string{"a": "baz"},
-		[]prompb.Label{{Name: "a", Value: "baz"}, {Name: "foo", Value: "aaa"}},
+		[]prompbmarshal.Label{{Name: "a", Value: "baz"}, {Name: "foo", Value: "aaa"}},
 		pcs,
 	)
 	fn(
 		map[string]string{"foo": "bar", "a": "baz"},
-		[]prompb.Label{{Name: "a", Value: "baz"}, {Name: "foo", Value: "aaa"}},
+		[]prompbmarshal.Label{{Name: "a", Value: "baz"}, {Name: "foo", Value: "aaa"}},
 		pcs,
 	)
 	fn(
 		map[string]string{"qux": "bar", "env": "prod", "environment": "production"},
-		[]prompb.Label{{Name: "foo", Value: "aaa"}, {Name: "qux", Value: "bar"}},
+		[]prompbmarshal.Label{{Name: "foo", Value: "aaa"}, {Name: "qux", Value: "bar"}},
 		pcs,
 	)
 }

app/vmalert/notifier/alertmanager.go

@@ -3,7 +3,6 @@ package notifier
 import (
 	"bytes"
 	"context"
-	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -14,19 +13,19 @@ import (
 	"github.com/VictoriaMetrics/metrics"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/vmalertutil"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httputil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
 )
 
 // AlertManager represents integration provider with Prometheus alert manager
 // https://github.com/prometheus/alertmanager
 type AlertManager struct {
-	addr      *url.URL
-	argFunc   AlertURLGenerator
-	client    *http.Client
-	timeout   time.Duration
-	lastError string
+	addr    *url.URL
+	argFunc AlertURLGenerator
+	client  *http.Client
+	timeout time.Duration
 
 	authCfg *promauth.Config
 	// stores already parsed RelabelConfigs object
@@ -72,42 +71,24 @@ func (am AlertManager) Addr() string {
 	return am.addr.Redacted()
 }
 
-func (am *AlertManager) LastError() string {
-	return am.lastError
-}
-
 // Send an alert or resolve message
-func (am *AlertManager) Send(ctx context.Context, alerts []Alert, alertLabels [][]prompb.Label, headers map[string]string) error {
-	if len(alerts) != len(alertLabels) {
-		return fmt.Errorf("mismatched number of alerts and label sets after global alert relabeling")
-	}
+func (am *AlertManager) Send(ctx context.Context, alerts []Alert, headers map[string]string) error {
 	am.metrics.alertsSent.Add(len(alerts))
 	startTime := time.Now()
-	err := am.send(ctx, alerts, alertLabels, headers)
+	err := am.send(ctx, alerts, headers)
 	am.metrics.alertsSendDuration.UpdateDuration(startTime)
 	if err != nil {
-		// the context can be cancelled on graceful shutdown
-		// or on group update. So no need to handle the error as usual.
-		if errors.Is(err, context.Canceled) {
-			return nil
-		}
 		am.metrics.alertsSendErrors.Add(len(alerts))
-		am.lastError = err.Error()
-	} else {
-		am.lastError = ""
 	}
 	return err
 }
 
-func (am *AlertManager) send(ctx context.Context, alerts []Alert, alertLabels [][]prompb.Label, headers map[string]string) error {
+func (am *AlertManager) send(ctx context.Context, alerts []Alert, headers map[string]string) error {
 	b := &bytes.Buffer{}
 	alertsToSend := make([]Alert, 0, len(alerts))
-	lblss := make([][]prompb.Label, 0, len(alerts))
-	for i, a := range alerts {
-		lbls := alertLabels[i]
-		if am.relabelConfigs != nil {
-			lbls = am.relabelConfigs.Apply(lbls, 0)
-		}
+	lblss := make([][]prompbmarshal.Label, 0, len(alerts))
+	for _, a := range alerts {
+		lbls := a.applyRelabelingIfNeeded(am.relabelConfigs)
 		if len(lbls) == 0 {
 			continue
 		}
@@ -171,6 +152,11 @@ const alertManagerPath = "/api/v2/alerts"
 func NewAlertManager(alertManagerURL string, fn AlertURLGenerator, authCfg promauth.HTTPClientConfig,
 	relabelCfg *promrelabel.ParsedConfigs, timeout time.Duration,
 ) (*AlertManager, error) {
+
+	if err := httputil.CheckURL(alertManagerURL); err != nil {
+		return nil, fmt.Errorf("invalid alertmanager URL: %w", err)
+	}
+
 	tls := &promauth.TLSConfig{}
 	if authCfg.TLSConfig != nil {
 		tls = authCfg.TLSConfig
@@ -191,7 +177,7 @@ func NewAlertManager(alertManagerURL string, fn AlertURLGenerator, authCfg proma
 	}
 
 	aCfg, err := vmalertutil.AuthConfig(
-		vmalertutil.WithBasicAuth(ba.Username, ba.UsernameFile, ba.Password.String(), ba.PasswordFile),
+		vmalertutil.WithBasicAuth(ba.Username, ba.Password.String(), ba.PasswordFile),
 		vmalertutil.WithBearer(authCfg.BearerToken.String(), authCfg.BearerTokenFile),
 		vmalertutil.WithOAuth(oauth.ClientID, oauth.ClientSecret.String(), oauth.ClientSecretFile, oauth.TokenURL, strings.Join(oauth.Scopes, ";"), oauth.EndpointParams),
 		vmalertutil.WithHeaders(strings.Join(authCfg.Headers, "^^")),

app/vmalert/notifier/alertmanager_request.qtpl

@@ -1,11 +1,11 @@
 {% import (
     "time"
 
-    "github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+    "github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 ) %}
 {% stripspace %}
 
-{% func amRequest(alerts []Alert, generatorURL func(Alert) string, lblss [][]prompb.Label) %}
+{% func amRequest(alerts []Alert, generatorURL func(Alert) string, lblss [][]prompbmarshal.Label) %}
 [
 {% for i, alert := range alerts %}
 {% code lbls := lblss[i] %}

app/vmalert/notifier/alertmanager_request.qtpl.go

@@ -8,7 +8,7 @@ package notifier
 import (
 	"time"
 
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 )
 
 //line app/vmalert/notifier/alertmanager_request.qtpl:8
@@ -25,7 +25,7 @@ var (
 )
 
 //line app/vmalert/notifier/alertmanager_request.qtpl:8
-func streamamRequest(qw422016 *qt422016.Writer, alerts []Alert, generatorURL func(Alert) string, lblss [][]prompb.Label) {
+func streamamRequest(qw422016 *qt422016.Writer, alerts []Alert, generatorURL func(Alert) string, lblss [][]prompbmarshal.Label) {
 //line app/vmalert/notifier/alertmanager_request.qtpl:8
 	qw422016.N().S(`[`)
 //line app/vmalert/notifier/alertmanager_request.qtpl:10
@@ -114,7 +114,7 @@ func streamamRequest(qw422016 *qt422016.Writer, alerts []Alert, generatorURL fun
 }
 
 //line app/vmalert/notifier/alertmanager_request.qtpl:35
-func writeamRequest(qq422016 qtio422016.Writer, alerts []Alert, generatorURL func(Alert) string, lblss [][]prompb.Label) {
+func writeamRequest(qq422016 qtio422016.Writer, alerts []Alert, generatorURL func(Alert) string, lblss [][]prompbmarshal.Label) {
 //line app/vmalert/notifier/alertmanager_request.qtpl:35
 	qw422016 := qt422016.AcquireWriter(qq422016)
 //line app/vmalert/notifier/alertmanager_request.qtpl:35
@@ -125,7 +125,7 @@ func writeamRequest(qq422016 qtio422016.Writer, alerts []Alert, generatorURL fun
 }
 
 //line app/vmalert/notifier/alertmanager_request.qtpl:35
-func amRequest(alerts []Alert, generatorURL func(Alert) string, lblss [][]prompb.Label) string {
+func amRequest(alerts []Alert, generatorURL func(Alert) string, lblss [][]prompbmarshal.Label) string {
 //line app/vmalert/notifier/alertmanager_request.qtpl:35
 	qb422016 := qt422016.AcquireByteBuffer()
 //line app/vmalert/notifier/alertmanager_request.qtpl:35

app/vmalert/notifier/alertmanager_test.go

@@ -11,7 +11,6 @@ import (
 	"time"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
 )
 
@@ -146,11 +145,11 @@ func TestAlertManager_Send(t *testing.T) {
 		t.Fatalf("unexpected error: %s", err)
 	}
 
-	if err := am.Send(context.Background(), []Alert{{Labels: map[string]string{"a": "b"}}}, [][]prompb.Label{{{Name: "a", Value: "b"}}}, nil); err == nil {
+	if err := am.Send(context.Background(), []Alert{{Labels: map[string]string{"a": "b"}}}, nil); err == nil {
 		t.Fatalf("expected connection error got nil")
 	}
 
-	if err := am.Send(context.Background(), []Alert{{Labels: map[string]string{"a": "b"}}}, [][]prompb.Label{{{Name: "a", Value: "b"}}}, nil); err == nil {
+	if err := am.Send(context.Background(), []Alert{{Labels: map[string]string{"a": "b"}}}, nil); err == nil {
 		t.Fatalf("expected wrong http code error got nil")
 	}
 
@@ -161,7 +160,7 @@ func TestAlertManager_Send(t *testing.T) {
 		End:         time.Now().UTC(),
 		Labels:      map[string]string{"alertname": "alert0"},
 		Annotations: map[string]string{"a": "b", "c": "d"},
-	}}, [][]prompb.Label{{{Name: "alertname", Value: "alert0"}}}, map[string]string{headerKey: "bar"}); err != nil {
+	}}, map[string]string{headerKey: "bar"}); err != nil {
 		t.Fatalf("unexpected error %s", err)
 	}
 
@@ -175,7 +174,7 @@ func TestAlertManager_Send(t *testing.T) {
 			Name:   "alert2",
 			Labels: map[string]string{"rule": "test", "tenant": "1"},
 		},
-	}, [][]prompb.Label{{{Name: "rule", Value: "test"}, {Name: "tenant", Value: "0"}}, {{Name: "rule", Value: "test"}, {Name: "tenant", Value: "1"}}}, map[string]string{headerKey: "bar"}); err != nil {
+	}, map[string]string{headerKey: "bar"}); err != nil {
 		t.Fatalf("unexpected error %s", err)
 	}
 
@@ -188,7 +187,7 @@ func TestAlertManager_Send(t *testing.T) {
 			Name:   "alert2",
 			Labels: map[string]string{},
 		},
-	}, [][]prompb.Label{{{Name: "rule", Value: "test"}}, {{}}}, map[string]string{}); err != nil {
+	}, map[string]string{}); err != nil {
 		t.Fatalf("unexpected error %s", err)
 	}
 

app/vmalert/notifier/config.go

@@ -27,9 +27,15 @@ type Config struct {
 	// PathPrefix is added to URL path before adding alertManagerPath value
 	PathPrefix string `yaml:"path_prefix,omitempty"`
 
-	ConsulSDConfigs []ConsulSDConfigs `yaml:"consul_sd_configs,omitempty"`
-	DNSSDConfigs    []DNSSDConfigs    `yaml:"dns_sd_configs,omitempty"`
-	StaticConfigs   []StaticConfig    `yaml:"static_configs,omitempty"`
+	// ConsulSDConfigs contains list of settings for service discovery via Consul
+	// see https://prometheus.io/docs/prometheus/latest/configuration/configuration/#consul_sd_config
+	ConsulSDConfigs []consul.SDConfig `yaml:"consul_sd_configs,omitempty"`
+	// DNSSDConfigs contains list of settings for service discovery via DNS.
+	// See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#dns_sd_config
+	DNSSDConfigs []dns.SDConfig `yaml:"dns_sd_configs,omitempty"`
+
+	// StaticConfigs contains list of static targets
+	StaticConfigs []StaticConfig `yaml:"static_configs,omitempty"`
 
 	// HTTPClientConfig contains HTTP configuration for Notifier clients
 	HTTPClientConfig promauth.HTTPClientConfig `yaml:",inline"`
@@ -56,29 +62,14 @@ type Config struct {
 	parsedAlertRelabelConfigs *promrelabel.ParsedConfigs
 }
 
-// staticConfig contains list of static targets in the following form:
+// StaticConfig contains list of static targets in the following form:
 //
 //	targets:
 //	[ - '<host>' ]
 type StaticConfig struct {
 	Targets []string `yaml:"targets"`
 	// HTTPClientConfig contains HTTP configuration for the Targets
-	HTTPClientConfig    promauth.HTTPClientConfig   `yaml:",inline"`
-	AlertRelabelConfigs []promrelabel.RelabelConfig `yaml:"alert_relabel_configs,omitempty"`
-}
-
-// ConsulSDConfigs contains list of settings for service discovery via Consul,
-// see https://prometheus.io/docs/prometheus/latest/configuration/configuration/#consul_sd_config
-type ConsulSDConfigs struct {
-	consul.SDConfig     `yaml:",inline"`
-	AlertRelabelConfigs []promrelabel.RelabelConfig `yaml:"alert_relabel_configs,omitempty"`
-}
-
-// DNSSDConfigs contains list of settings for service discovery via DNS,
-// See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#dns_sd_config
-type DNSSDConfigs struct {
-	dns.SDConfig        `yaml:",inline"`
-	AlertRelabelConfigs []promrelabel.RelabelConfig `yaml:"alert_relabel_configs,omitempty"`
+	HTTPClientConfig promauth.HTTPClientConfig `yaml:",inline"`
 }
 
 // UnmarshalYAML implements the yaml.Unmarshaler interface.
@@ -104,31 +95,6 @@ func (cfg *Config) UnmarshalYAML(unmarshal func(any) error) error {
 	}
 	cfg.parsedAlertRelabelConfigs = arCfg
 
-	for _, s := range cfg.StaticConfigs {
-		if len(s.AlertRelabelConfigs) > 0 {
-			_, err := promrelabel.ParseRelabelConfigs(s.AlertRelabelConfigs)
-			if err != nil {
-				return fmt.Errorf("failed to parse alert_relabel_configs in static_config: %w", err)
-			}
-		}
-	}
-	for _, s := range cfg.ConsulSDConfigs {
-		if len(s.AlertRelabelConfigs) > 0 {
-			_, err := promrelabel.ParseRelabelConfigs(s.AlertRelabelConfigs)
-			if err != nil {
-				return fmt.Errorf("failed to parse alert_relabel_configs in consul_sd_config: %w", err)
-			}
-		}
-	}
-	for _, s := range cfg.DNSSDConfigs {
-		if len(s.AlertRelabelConfigs) > 0 {
-			_, err := promrelabel.ParseRelabelConfigs(s.AlertRelabelConfigs)
-			if err != nil {
-				return fmt.Errorf("failed to parse alert_relabel_configs in dns_sd_config: %w", err)
-			}
-		}
-	}
-
 	b, err := yaml.Marshal(cfg)
 	if err != nil {
 		return fmt.Errorf("failed to marshal configuration for checksum: %w", err)

app/vmalert/notifier/config_test.go

@@ -35,6 +35,4 @@ func TestParseConfig_Failure(t *testing.T) {
 
 	f("testdata/unknownFields.bad.yaml", "unknown field")
 	f("non-existing-file", "error reading")
-	f("testdata/consul.bad.yaml", "failed to parse alert_relabel_configs in consul_sd_config")
-	f("testdata/dns.bad.yaml", "failed to parse alert relabeling config")
 }

app/vmalert/notifier/config_watcher.go

@@ -8,7 +8,6 @@ import (
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promscrape/discovery/consul"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promscrape/discovery/dns"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutil"
@@ -29,7 +28,11 @@ type configWatcher struct {
 	targets   map[TargetType][]Target
 }
 
-func newWatcher(cfg *Config, gen AlertURLGenerator) (*configWatcher, error) {
+func newWatcher(path string, gen AlertURLGenerator) (*configWatcher, error) {
+	cfg, err := parseConfig(path)
+	if err != nil {
+		return nil, err
+	}
 	cw := &configWatcher{
 		cfg:       cfg,
 		wg:        sync.WaitGroup{},
@@ -85,15 +88,18 @@ func (cw *configWatcher) reload(path string) error {
 	return cw.start()
 }
 
-func (cw *configWatcher) add(typeK TargetType, interval time.Duration, targetsFn getTargets) error {
-	targetMetadata, errors := getTargetMetadata(targetsFn, cw.cfg)
+func (cw *configWatcher) add(typeK TargetType, interval time.Duration, labelsFn getLabels) error {
+	targetMetadata, errors := getTargetMetadata(labelsFn, cw.cfg)
 	for _, err := range errors {
 		return fmt.Errorf("failed to init notifier for %q: %w", typeK, err)
 	}
 
 	cw.updateTargets(typeK, targetMetadata, cw.cfg, cw.genFn)
 
-	cw.wg.Go(func() {
+	cw.wg.Add(1)
+	go func() {
+		defer cw.wg.Done()
+
 		ticker := time.NewTicker(interval)
 		defer ticker.Stop()
 
@@ -103,77 +109,62 @@ func (cw *configWatcher) add(typeK TargetType, interval time.Duration, targetsFn
 				return
 			case <-ticker.C:
 			}
-			targetMetadata, errors := getTargetMetadata(targetsFn, cw.cfg)
+			targetMetadata, errors := getTargetMetadata(labelsFn, cw.cfg)
 			for _, err := range errors {
-				logger.Errorf("failed to init notifier for %q: %s", typeK, err)
+				logger.Errorf("failed to init notifier for %q: %w", typeK, err)
 			}
 			cw.updateTargets(typeK, targetMetadata, cw.cfg, cw.genFn)
 		}
-	})
+	}()
 	return nil
 }
 
-type targetMetadata struct {
-	*promutil.Labels
-	alertRelabelConfigs *promrelabel.ParsedConfigs
-}
-
-func getTargetMetadata(targetsFn getTargets, cfg *Config) (map[string]targetMetadata, []error) {
-	metaLabelsList, alertRelabelCfgs, err := targetsFn()
+func getTargetMetadata(labelsFn getLabels, cfg *Config) (map[string]*promutil.Labels, []error) {
+	metaLabels, err := labelsFn()
 	if err != nil {
 		return nil, []error{fmt.Errorf("failed to get labels: %w", err)}
 	}
-	targetMts := make(map[string]targetMetadata, len(metaLabelsList))
+	targetMetadata := make(map[string]*promutil.Labels, len(metaLabels))
 	var errors []error
 	duplicates := make(map[string]struct{})
-	for i := range metaLabelsList {
-		metaLabels := metaLabelsList[i]
-		alertRelabelCfg := alertRelabelCfgs[i]
-		for _, labels := range metaLabels {
-			target := labels.Get("__address__")
-			u, processedLabels, err := parseLabels(target, labels, cfg)
-			if err != nil {
-				errors = append(errors, err)
-				continue
-			}
-			if len(u) == 0 {
-				continue
-			}
-			// check for duplicated targets
-			// targets with same address but different alert_relabel_configs are still considered duplicates since it's mostly due to misconfiguration and could cause duplicated notifications.
-			if _, ok := duplicates[u]; ok {
-				if !*suppressDuplicateTargetErrors {
-					logger.Errorf("skipping duplicate target with identical address %q; "+
-						"make sure service discovery and relabeling is set up properly; "+
-						"original labels: %s; resulting labels: %s",
-						u, labels, processedLabels)
-				}
-				continue
-			}
-			duplicates[u] = struct{}{}
-			targetMts[u] = targetMetadata{
-				Labels:              processedLabels,
-				alertRelabelConfigs: alertRelabelCfg,
-			}
+	for _, labels := range metaLabels {
+		target := labels.Get("__address__")
+		u, processedLabels, err := parseLabels(target, labels, cfg)
+		if err != nil {
+			errors = append(errors, err)
+			continue
 		}
+		if len(u) == 0 {
+			continue
+		}
+		if _, ok := duplicates[u]; ok { // check for duplicates
+			if !*suppressDuplicateTargetErrors {
+				logger.Errorf("skipping duplicate target with identical address %q; "+
+					"make sure service discovery and relabeling is set up properly; "+
+					"original labels: %s; resulting labels: %s",
+					u, labels, processedLabels)
+			}
+			continue
+		}
+		duplicates[u] = struct{}{}
+		targetMetadata[u] = processedLabels
 	}
-	return targetMts, errors
+	return targetMetadata, errors
 }
 
-type getTargets func() ([][]*promutil.Labels, []*promrelabel.ParsedConfigs, error)
+type getLabels func() ([]*promutil.Labels, error)
 
 func (cw *configWatcher) start() error {
 	if len(cw.cfg.StaticConfigs) > 0 {
 		var targets []Target
-		for i, cfg := range cw.cfg.StaticConfigs {
-			alertRelabelConfig, _ := promrelabel.ParseRelabelConfigs(cw.cfg.StaticConfigs[i].AlertRelabelConfigs)
+		for _, cfg := range cw.cfg.StaticConfigs {
 			httpCfg := mergeHTTPClientConfigs(cw.cfg.HTTPClientConfig, cfg.HTTPClientConfig)
 			for _, target := range cfg.Targets {
 				address, labels, err := parseLabels(target, nil, cw.cfg)
 				if err != nil {
 					return fmt.Errorf("failed to parse labels for target %q: %w", target, err)
 				}
-				notifier, err := NewAlertManager(address, cw.genFn, httpCfg, alertRelabelConfig, cw.cfg.Timeout.Duration())
+				notifier, err := NewAlertManager(address, cw.genFn, httpCfg, cw.cfg.parsedAlertRelabelConfigs, cw.cfg.Timeout.Duration())
 				if err != nil {
 					return fmt.Errorf("failed to init alertmanager for addr %q: %w", address, err)
 				}
@@ -187,20 +178,17 @@ func (cw *configWatcher) start() error {
 	}
 
 	if len(cw.cfg.ConsulSDConfigs) > 0 {
-		err := cw.add(TargetConsul, *consul.SDCheckInterval, func() ([][]*promutil.Labels, []*promrelabel.ParsedConfigs, error) {
-			var labels [][]*promutil.Labels
-			var alertRelabelConfigs []*promrelabel.ParsedConfigs
+		err := cw.add(TargetConsul, *consul.SDCheckInterval, func() ([]*promutil.Labels, error) {
+			var labels []*promutil.Labels
 			for i := range cw.cfg.ConsulSDConfigs {
-				alertRelabelConfig, _ := promrelabel.ParseRelabelConfigs(cw.cfg.ConsulSDConfigs[i].AlertRelabelConfigs)
 				sdc := &cw.cfg.ConsulSDConfigs[i]
 				targetLabels, err := sdc.GetLabels(cw.cfg.baseDir)
 				if err != nil {
-					return nil, nil, fmt.Errorf("got labels err: %w", err)
+					return nil, fmt.Errorf("got labels err: %w", err)
 				}
-				labels = append(labels, targetLabels)
-				alertRelabelConfigs = append(alertRelabelConfigs, alertRelabelConfig)
+				labels = append(labels, targetLabels...)
 			}
-			return labels, alertRelabelConfigs, nil
+			return labels, nil
 		})
 		if err != nil {
 			return fmt.Errorf("failed to start consulSD discovery: %w", err)
@@ -208,21 +196,17 @@ func (cw *configWatcher) start() error {
 	}
 
 	if len(cw.cfg.DNSSDConfigs) > 0 {
-		err := cw.add(TargetDNS, *dns.SDCheckInterval, func() ([][]*promutil.Labels, []*promrelabel.ParsedConfigs, error) {
-			var labels [][]*promutil.Labels
-			var alertRelabelConfigs []*promrelabel.ParsedConfigs
+		err := cw.add(TargetDNS, *dns.SDCheckInterval, func() ([]*promutil.Labels, error) {
+			var labels []*promutil.Labels
 			for i := range cw.cfg.DNSSDConfigs {
-				alertRelabelConfig, _ := promrelabel.ParseRelabelConfigs(cw.cfg.DNSSDConfigs[i].AlertRelabelConfigs)
 				sdc := &cw.cfg.DNSSDConfigs[i]
 				targetLabels, err := sdc.GetLabels(cw.cfg.baseDir)
 				if err != nil {
-					return nil, nil, fmt.Errorf("got labels err: %w", err)
+					return nil, fmt.Errorf("got labels err: %w", err)
 				}
-				labels = append(labels, targetLabels)
-				alertRelabelConfigs = append(alertRelabelConfigs, alertRelabelConfig)
-
+				labels = append(labels, targetLabels...)
 			}
-			return labels, alertRelabelConfigs, nil
+			return labels, nil
 		})
 		if err != nil {
 			return fmt.Errorf("failed to start DNSSD discovery: %w", err)
@@ -256,30 +240,30 @@ func (cw *configWatcher) setTargets(key TargetType, targets []Target) {
 	cw.targetsMu.Unlock()
 }
 
-func (cw *configWatcher) updateTargets(key TargetType, targetMts map[string]targetMetadata, cfg *Config, genFn AlertURLGenerator) {
+func (cw *configWatcher) updateTargets(key TargetType, targetMetadata map[string]*promutil.Labels, cfg *Config, genFn AlertURLGenerator) {
 	cw.targetsMu.Lock()
 	defer cw.targetsMu.Unlock()
 	oldTargets := cw.targets[key]
 	var updatedTargets []Target
 	for _, ot := range oldTargets {
-		if _, ok := targetMts[ot.Addr()]; !ok {
+		if _, ok := targetMetadata[ot.Addr()]; !ok {
 			// if target not exists in currentTargets, close it
-			ot.Close()
+			ot.Notifier.Close()
 		} else {
 			updatedTargets = append(updatedTargets, ot)
-			delete(targetMts, ot.Addr())
+			delete(targetMetadata, ot.Addr())
 		}
 	}
 	// create new resources for the new targets
-	for addr, metadata := range targetMts {
-		am, err := NewAlertManager(addr, genFn, cfg.HTTPClientConfig, metadata.alertRelabelConfigs, cfg.Timeout.Duration())
+	for addr, labels := range targetMetadata {
+		am, err := NewAlertManager(addr, genFn, cfg.HTTPClientConfig, cfg.parsedAlertRelabelConfigs, cfg.Timeout.Duration())
 		if err != nil {
-			logger.Errorf("failed to init %s notifier with addr %q: %s", key, addr, err)
+			logger.Errorf("failed to init %s notifier with addr %q: %w", key, addr, err)
 			continue
 		}
 		updatedTargets = append(updatedTargets, Target{
 			Notifier: am,
-			Labels:   metadata.Labels,
+			Labels:   labels,
 		})
 	}
 

app/vmalert/notifier/config_watcher_test.go

@@ -7,11 +7,9 @@ import (
 	"net/http/httptest"
 	"os"
 	"sync"
-	"sync/atomic"
 	"testing"
 	"time"
 
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promscrape/discovery/consul"
 )
@@ -21,19 +19,15 @@ func TestConfigWatcherReload(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	defer fs.MustRemovePath(f.Name())
+	defer func() { _ = os.Remove(f.Name()) }()
 
-	writeToFile(f.Name(), `
+	writeToFile(t, f.Name(), `
 static_configs:
   - targets:
       - localhost:9093
       - localhost:9094
 `)
-	cfg, err := parseConfig(f.Name())
-	if err != nil {
-		t.Fatalf("failed to parse config: %s", err)
-	}
-	cw, err := newWatcher(cfg, nil)
+	cw, err := newWatcher(f.Name(), nil)
 	if err != nil {
 		t.Fatalf("failed to start config watcher: %s", err)
 	}
@@ -47,9 +41,9 @@ static_configs:
 	if err != nil {
 		t.Fatal(err)
 	}
-	defer fs.MustRemovePath(f2.Name())
+	defer func() { _ = os.Remove(f2.Name()) }()
 
-	writeToFile(f2.Name(), `
+	writeToFile(t, f2.Name(), `
 static_configs:
   - targets:
       - 127.0.0.1:9093
@@ -79,73 +73,42 @@ func TestConfigWatcherStart(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	defer fs.MustRemovePath(consulSDFile.Name())
+	defer func() { _ = os.Remove(consulSDFile.Name()) }()
 
-	writeToFile(consulSDFile.Name(), fmt.Sprintf(`
+	writeToFile(t, consulSDFile.Name(), fmt.Sprintf(`
 scheme: https
 path_prefix: proxy
 consul_sd_configs:
   - server: %s
     services:
       - alertmanager
-  - server: %s
-    services:
-      - alertmanager
-    alert_relabel_configs:
-    - target_label: "foo"
-      replacement: "tar"
-`, consulSDServer.URL, consulSDServer.URL))
+`, consulSDServer.URL))
 
-	cfg, err := parseConfig(consulSDFile.Name())
-	if err != nil {
-		t.Fatalf("failed to parse config: %s", err)
-	}
-	cw, err := newWatcher(cfg, nil)
+	cw, err := newWatcher(consulSDFile.Name(), nil)
 	if err != nil {
 		t.Fatalf("failed to start config watcher: %s", err)
 	}
 	defer cw.mustStop()
 
-	if len(cw.notifiers()) != 3 {
-		t.Fatalf("expected to get 3 notifiers; got %d", len(cw.notifiers()))
+	if len(cw.notifiers()) != 2 {
+		t.Fatalf("expected to get 2 notifiers; got %d", len(cw.notifiers()))
 	}
 
 	expAddr1 := fmt.Sprintf("https://%s/proxy/api/v2/alerts", fakeConsulService1)
 	expAddr2 := fmt.Sprintf("https://%s/proxy/api/v2/alerts", fakeConsulService2)
-	expAddr3 := fmt.Sprintf("https://%s/proxy/api/v2/alerts", fakeConsulService3)
 
-	n1, n2, n3 := cw.notifiers()[0], cw.notifiers()[1], cw.notifiers()[2]
+	n1, n2 := cw.notifiers()[0], cw.notifiers()[1]
 	if n1.Addr() != expAddr1 {
 		t.Fatalf("exp address %q; got %q", expAddr1, n1.Addr())
 	}
 	if n2.Addr() != expAddr2 {
 		t.Fatalf("exp address %q; got %q", expAddr2, n2.Addr())
 	}
-	if n3.Addr() != expAddr3 {
-		t.Fatalf("exp address %q; got %q", expAddr3, n3.Addr())
-	}
-
-	if n1.(*AlertManager).relabelConfigs.String() != "" {
-		t.Fatalf("unexpected relabel configs: %q", n1.(*AlertManager).relabelConfigs.String())
-	}
-	if n2.(*AlertManager).relabelConfigs.String() != "" {
-		t.Fatalf("unexpected relabel configs: %q", n2.(*AlertManager).relabelConfigs.String())
-	}
-	if n3.(*AlertManager).relabelConfigs.String() != "- target_label: foo\n  replacement: tar\n" {
-		t.Fatalf("unexpected relabel configs: %q", n3.(*AlertManager).relabelConfigs.String())
-	}
 
 	f := func() bool { return len(cw.notifiers()) == 1 }
 	if !waitFor(f, time.Second) {
 		t.Fatalf("expected to get 1 notifiers; got %d", len(cw.notifiers()))
 	}
-	n3 = cw.notifiers()[0]
-	if n3.Addr() != expAddr3 {
-		t.Fatalf("exp address %q; got %q", expAddr3, n3.Addr())
-	}
-	if n3.(*AlertManager).relabelConfigs.String() != "- target_label: foo\n  replacement: tar\n" {
-		t.Fatalf("unexpected relabel configs: %q", n3.(*AlertManager).relabelConfigs.String())
-	}
 }
 
 // TestConfigWatcherReloadConcurrent supposed to test concurrent
@@ -161,9 +124,9 @@ func TestConfigWatcherReloadConcurrent(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	defer fs.MustRemovePath(consulSDFile.Name())
+	defer func() { _ = os.Remove(consulSDFile.Name()) }()
 
-	writeToFile(consulSDFile.Name(), fmt.Sprintf(`
+	writeToFile(t, consulSDFile.Name(), fmt.Sprintf(`
 consul_sd_configs:
   - server: %s
     services:
@@ -177,9 +140,9 @@ consul_sd_configs:
 	if err != nil {
 		t.Fatal(err)
 	}
-	defer fs.MustRemovePath(staticAndConsulSDFile.Name())
+	defer func() { _ = os.Remove(staticAndConsulSDFile.Name()) }()
 
-	writeToFile(staticAndConsulSDFile.Name(), fmt.Sprintf(`
+	writeToFile(t, staticAndConsulSDFile.Name(), fmt.Sprintf(`
 static_configs:
   - targets:
       - localhost:9093
@@ -200,11 +163,7 @@ consul_sd_configs:
 		"unknownFields.bad.yaml",
 	}
 
-	cfg, err := parseConfig(paths[0])
-	if err != nil {
-		t.Fatalf("failed to parse config: %s", err)
-	}
-	cw, err := newWatcher(cfg, nil)
+	cw, err := newWatcher(paths[0], nil)
 	if err != nil {
 		t.Fatalf("failed to start config watcher: %s", err)
 	}
@@ -212,22 +171,25 @@ consul_sd_configs:
 
 	const workers = 500
 	const iterations = 10
-	var wg sync.WaitGroup
-	for n := range workers {
-		wg.Go(func() {
+	wg := sync.WaitGroup{}
+	wg.Add(workers)
+	for i := 0; i < workers; i++ {
+		go func(n int) {
+			defer wg.Done()
 			r := rand.New(rand.NewSource(int64(n)))
-			for range iterations {
+			for i := 0; i < iterations; i++ {
 				rnd := r.Intn(len(paths))
 				_ = cw.reload(paths[rnd]) // update can fail and this is expected
 				_ = cw.notifiers()
 			}
-		})
+		}(i)
 	}
 	wg.Wait()
 }
 
-func writeToFile(file, b string) {
-	fs.MustWriteSync(file, []byte(b))
+func writeToFile(t *testing.T, file, b string) {
+	t.Helper()
+	checkErr(t, os.WriteFile(file, []byte(b), 0644))
 }
 
 func checkErr(t *testing.T, err error) {
@@ -240,11 +202,10 @@ func checkErr(t *testing.T, err error) {
 const (
 	fakeConsulService1 = "127.0.0.1:9093"
 	fakeConsulService2 = "127.0.0.1:9095"
-	fakeConsulService3 = "127.0.0.1:9097"
 )
 
 func newFakeConsulServer() *httptest.Server {
-	var requestCount atomic.Int32
+	requestCount := 0
 	mux := http.NewServeMux()
 	mux.HandleFunc("/v1/agent/self", func(rw http.ResponseWriter, _ *http.Request) {
 		rw.Write([]byte(`{"Config": {"Datacenter": "dc1"}}`))
@@ -259,7 +220,7 @@ func newFakeConsulServer() *httptest.Server {
 }`))
 	})
 	mux.HandleFunc("/v1/health/service/alertmanager", func(rw http.ResponseWriter, _ *http.Request) {
-		if requestCount.Load() == 0 {
+		if requestCount == 0 {
 			rw.Header().Set("X-Consul-Index", "1")
 			rw.Write([]byte(`
 [
@@ -399,7 +360,7 @@ func newFakeConsulServer() *httptest.Server {
     }
 ]`))
 		}
-		requestCount.Add(1)
+		requestCount++
 	})
 
 	return httptest.NewServer(mux)

app/vmalert/notifier/faker.go

@@ -5,8 +5,6 @@ import (
 	"fmt"
 	"sync"
 	"time"
-
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
 )
 
 // FakeNotifier is a mock notifier
@@ -17,32 +15,14 @@ type FakeNotifier struct {
 	counter int
 }
 
-// InitFakeNotifier initializes global notifier to FakeNotifier,
-// and returns a cleanup function to restore the original getActiveNotifiers.
-func InitFakeNotifier() (*FakeNotifier, func()) {
-	originalGetActiveNotifiers := getActiveNotifiers
-	fn := &FakeNotifier{}
-	getActiveNotifiers = func() []Notifier {
-		return []Notifier{fn}
-	}
-	return fn, func() {
-		getActiveNotifiers = originalGetActiveNotifiers
-	}
-}
-
 // Close does nothing
 func (*FakeNotifier) Close() {}
 
-// LastError returns last error message
-func (*FakeNotifier) LastError() string {
-	return ""
-}
-
 // Addr returns ""
 func (*FakeNotifier) Addr() string { return "" }
 
 // Send sets alerts and increases counter
-func (fn *FakeNotifier) Send(_ context.Context, alerts []Alert, _ [][]prompb.Label, _ map[string]string) error {
+func (fn *FakeNotifier) Send(_ context.Context, alerts []Alert, _ map[string]string) error {
 	fn.Lock()
 	defer fn.Unlock()
 	fn.counter += len(alerts)

app/vmalert/notifier/init.go

@@ -1,22 +1,14 @@
 package notifier
 
 import (
-	"context"
 	"flag"
 	"fmt"
 	"net/url"
-	"strconv"
 	"strings"
-	"sync"
 	"time"
 
-	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/datasource"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httputil"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutil"
 )
 
@@ -36,7 +28,6 @@ var (
 		"For example, -remoteWrite.headers='My-Auth:foobar' would send 'My-Auth: foobar' HTTP header with every request to the corresponding -notifier.url. "+
 		"Multiple headers must be delimited by '^^': -notifier.headers='header1:value1^^header2:value2,header3:value3'")
 	basicAuthUsername     = flagutil.NewArrayString("notifier.basicAuth.username", "Optional basic auth username for -notifier.url")
-	basicAuthUsernameFile = flagutil.NewArrayString("notifier.basicAuth.usernameFile", "Optional path to basic auth username file for -notifier.url")
 	basicAuthPassword     = flagutil.NewArrayString("notifier.basicAuth.password", "Optional basic auth password for -notifier.url")
 	basicAuthPasswordFile = flagutil.NewArrayString("notifier.basicAuth.passwordFile", "Optional path to basic auth password file for -notifier.url")
 
@@ -66,61 +57,11 @@ var (
 	sendTimeout = flagutil.NewArrayDuration("notifier.sendTimeout", 10*time.Second, "Timeout when sending alerts to the corresponding -notifier.url")
 )
 
-// AlertURLGeneratorFn returns a URL to the passed alert object.
-// Call InitAlertURLGeneratorFn before using this function.
-var AlertURLGeneratorFn AlertURLGenerator
-
-// InitAlertURLGeneratorFn populates AlertURLGeneratorFn
-func InitAlertURLGeneratorFn(externalURL *url.URL, externalAlertSource string, validateTemplate bool) error {
-	if externalAlertSource == "" {
-		AlertURLGeneratorFn = func(a Alert) string {
-			gID, aID := strconv.FormatUint(a.GroupID, 10), strconv.FormatUint(a.ID, 10)
-			return fmt.Sprintf("%s/vmalert/alert?%s=%s&%s=%s", externalURL, "group_id", gID, "alert_id", aID)
-		}
-		return nil
-	}
-	if validateTemplate {
-		if err := ValidateTemplates(map[string]string{
-			"tpl": externalAlertSource,
-		}); err != nil {
-			return fmt.Errorf("error validating source template %s: %w", externalAlertSource, err)
-		}
-	}
-	m := map[string]string{
-		"tpl": externalAlertSource,
-	}
-	AlertURLGeneratorFn = func(alert Alert) string {
-		qFn := func(_ string) ([]datasource.Metric, error) {
-			return nil, fmt.Errorf("`query` template isn't supported for alert source template")
-		}
-		templated, err := alert.ExecTemplate(qFn, alert.Labels, m)
-		if err != nil {
-			logger.Errorf("cannot template alert source: %s", err)
-		}
-		return fmt.Sprintf("%s/%s", externalURL, templated["tpl"])
-	}
-	return nil
-}
-
-var (
-	// getActiveNotifiers returns the current list of Notifier objects.
-	getActiveNotifiers func() []Notifier
-	// globalRelabelCfg stores the parsed alert relabeling config from the config file if there is
-	globalRelabelCfg *promrelabel.ParsedConfigs
-
-	// cw holds a configWatcher for configPath configuration file
-	// configWatcher provides a list of Notifier objects discovered
-	// from static config or via service discovery.
-	// cw is not nil only if configPath is provided.
-	cw *configWatcher
-
-	// externalLabels is a global variable for holding external labels configured via flags
-	// It is supposed to be inited via Init function only.
-	externalLabels map[string]string
-	// externalURL is a global variable for holding external URL value configured via flag
-	// It is supposed to be inited via Init function only.
-	externalURL string
-)
+// cw holds a configWatcher for configPath configuration file
+// configWatcher provides a list of Notifier objects discovered
+// from static config or via service discovery.
+// cw is not nil only if configPath is provided.
+var cw *configWatcher
 
 // Reload checks the changes in configPath configuration file
 // and applies changes if any.
@@ -131,62 +72,66 @@ func Reload() error {
 	return cw.reload(*configPath)
 }
 
+var staticNotifiersFn func() []Notifier
+
+var (
+	// externalLabels is a global variable for holding external labels configured via flags
+	// It is supposed to be inited via Init function only.
+	externalLabels map[string]string
+	// externalURL is a global variable for holding external URL value configured via flag
+	// It is supposed to be inited via Init function only.
+	externalURL string
+)
+
+// Init returns a function for retrieving actual list of Notifier objects.
 // Init works in two mods:
 //   - configuration via flags (for backward compatibility). Is always static
 //     and don't support live reloads.
 //   - configuration via file. Supports live reloads and service discovery.
 //
 // Init returns an error if both mods are used.
-func Init(extLabels map[string]string, extURL string) error {
+func Init(gen AlertURLGenerator, extLabels map[string]string, extURL string) (func() []Notifier, error) {
 	externalURL = extURL
 	externalLabels = extLabels
 	_, err := url.Parse(externalURL)
 	if err != nil {
-		return fmt.Errorf("failed to parse external URL: %w", err)
+		return nil, fmt.Errorf("failed to parse external URL: %w", err)
 	}
 
 	if *blackHole {
 		if len(*addrs) > 0 || *configPath != "" {
-			return fmt.Errorf("only one of -notifier.blackhole, -notifier.url and -notifier.config flags must be specified")
+			return nil, fmt.Errorf("only one of -notifier.blackhole, -notifier.url and -notifier.config flags must be specified")
 		}
 		notifier := newBlackHoleNotifier()
-		getActiveNotifiers = func() []Notifier {
+		staticNotifiersFn = func() []Notifier {
 			return []Notifier{notifier}
 		}
-		return nil
+		return staticNotifiersFn, nil
 	}
 
 	if *configPath == "" && len(*addrs) == 0 {
-		return nil
+		return nil, nil
 	}
 	if *configPath != "" && len(*addrs) > 0 {
-		return fmt.Errorf("only one of -notifier.config or -notifier.url flags must be specified")
+		return nil, fmt.Errorf("only one of -notifier.config or -notifier.url flags must be specified")
 	}
 
 	if len(*addrs) > 0 {
-		notifiers, err := notifiersFromFlags(AlertURLGeneratorFn)
+		notifiers, err := notifiersFromFlags(gen)
 		if err != nil {
-			return fmt.Errorf("failed to create notifier from flag values: %w", err)
+			return nil, fmt.Errorf("failed to create notifier from flag values: %w", err)
 		}
-		getActiveNotifiers = func() []Notifier {
+		staticNotifiersFn = func() []Notifier {
 			return notifiers
 		}
-		return nil
+		return staticNotifiersFn, nil
 	}
 
-	cfg, err := parseConfig(*configPath)
+	cw, err = newWatcher(*configPath, gen)
 	if err != nil {
-		return err
+		return nil, fmt.Errorf("failed to init config watcher: %w", err)
 	}
-	if cfg.AlertRelabelConfigs != nil {
-		globalRelabelCfg = cfg.parsedAlertRelabelConfigs
-	}
-	cw, err = newWatcher(cfg, AlertURLGeneratorFn)
-	if err != nil {
-		return fmt.Errorf("failed to init config watcher: %w", err)
-	}
-	getActiveNotifiers = cw.notifiers
-	return nil
+	return cw.notifiers, nil
 }
 
 // InitSecretFlags must be called after flag.Parse and before any logging
@@ -214,7 +159,6 @@ func notifiersFromFlags(gen AlertURLGenerator) ([]Notifier, error) {
 			},
 			BasicAuth: &promauth.BasicAuthConfig{
 				Username:     basicAuthUsername.GetOptionalArg(i),
-				UsernameFile: basicAuthUsernameFile.GetOptionalArg(i),
 				Password:     promauth.NewSecret(basicAuthPassword.GetOptionalArg(i)),
 				PasswordFile: basicAuthPasswordFile.GetOptionalArg(i),
 			},
@@ -231,9 +175,6 @@ func notifiersFromFlags(gen AlertURLGenerator) ([]Notifier, error) {
 			Headers: []string{headers.GetOptionalArg(i)},
 		}
 
-		if err := httputil.CheckURL(addr); err != nil {
-			return nil, fmt.Errorf("invalid notifier.url %q: %w", addr, err)
-		}
 		addr = strings.TrimSuffix(addr, "/")
 		am, err := NewAlertManager(addr+alertManagerPath, gen, authCfg, nil, sendTimeout.GetOptionalArg(i))
 		if err != nil {
@@ -265,58 +206,23 @@ const (
 
 // GetTargets returns list of static or discovered targets
 // via notifier configuration.
-//
-// Must be called after Init.
 func GetTargets() map[TargetType][]Target {
-	if getActiveNotifiers == nil {
-		return nil
+	var targets = make(map[TargetType][]Target)
+
+	if staticNotifiersFn != nil {
+		for _, ns := range staticNotifiersFn() {
+			targets[TargetStatic] = append(targets[TargetStatic], Target{
+				Notifier: ns,
+			})
+		}
 	}
-	targets := make(map[TargetType][]Target)
-	// use cached targets from configWatcher instead of getActiveNotifiers for the extra target labels
+
 	if cw != nil {
 		cw.targetsMu.RLock()
 		for key, ns := range cw.targets {
 			targets[key] = append(targets[key], ns...)
 		}
 		cw.targetsMu.RUnlock()
-		return targets
-	}
-
-	// static notifiers don't have labels
-	for _, ns := range getActiveNotifiers() {
-		targets[TargetStatic] = append(targets[TargetStatic], Target{
-			Notifier: ns,
-		})
 	}
 	return targets
 }
-
-// Send sends alerts to all active notifiers
-func Send(ctx context.Context, alerts []Alert, notifierHeaders map[string]string) chan error {
-	alertsToSend := make([]Alert, 0, len(alerts))
-	lblss := make([][]prompb.Label, 0, len(alerts))
-	// apply global relabel config first without modifying original alerts in alerts
-	for _, a := range alerts {
-		lbls := a.applyRelabelingIfNeeded(globalRelabelCfg)
-		if len(lbls) == 0 {
-			continue
-		}
-		alertsToSend = append(alertsToSend, a)
-		lblss = append(lblss, lbls)
-	}
-
-	wg := sync.WaitGroup{}
-	activeNotifiers := getActiveNotifiers()
-	errCh := make(chan error, len(activeNotifiers))
-	defer close(errCh)
-	for i := range activeNotifiers {
-		nt := activeNotifiers[i]
-		wg.Go(func() {
-			if err := nt.Send(ctx, alertsToSend, lblss, notifierHeaders); err != nil {
-				errCh <- fmt.Errorf("failed to send alerts to addr %q: %w", nt.Addr(), err)
-			}
-		})
-	}
-	wg.Wait()
-	return errCh
-}

app/vmalert/notifier/init_test.go

@@ -1,17 +1,9 @@
 package notifier
 
 import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"net/http"
-	"net/http/httptest"
-	"net/url"
-	"os"
 	"testing"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
 )
 
 func TestInit(t *testing.T) {
@@ -20,13 +12,14 @@ func TestInit(t *testing.T) {
 
 	*addrs = flagutil.ArrayString{"127.0.0.1", "127.0.0.2"}
 
-	err := Init(nil, "")
+	fn, err := Init(nil, nil, "")
 	if err != nil {
 		t.Fatalf("%s", err)
 	}
 
-	if len(getActiveNotifiers()) != 2 {
-		t.Fatalf("expected to get 2 notifiers; got %d", len(getActiveNotifiers()))
+	nfs := fn()
+	if len(nfs) != 2 {
+		t.Fatalf("expected to get 2 notifiers; got %d", len(nfs))
 	}
 
 	targets := GetTargets()
@@ -55,22 +48,19 @@ func TestInitNegative(t *testing.T) {
 		*blackHole = oldBlackHole
 	}()
 
-	f := func(path string, addr []string, bh bool) {
+	f := func(path, addr string, bh bool) {
 		*configPath = path
-		*addrs = flagutil.ArrayString(addr)
+		*addrs = flagutil.ArrayString{addr}
 		*blackHole = bh
-		if err := Init(nil, ""); err == nil {
+		if _, err := Init(nil, nil, ""); err == nil {
 			t.Fatalf("expected to get error; got nil instead")
 		}
 	}
 
 	// *configPath, *addrs and *blackhole are mutually exclusive
-	f("/dummy/path", []string{"127.0.0.1"}, false)
-	f("/dummy/path", []string{}, true)
-	f("", []string{"127.0.0.1"}, true)
-	// addr cannot be ""
-	f("", []string{""}, false)
-	f("", []string{"127.0.0.1", ""}, false)
+	f("/dummy/path", "127.0.0.1", false)
+	f("/dummy/path", "", true)
+	f("", "127.0.0.1", true)
 }
 
 func TestBlackHole(t *testing.T) {
@@ -79,13 +69,14 @@ func TestBlackHole(t *testing.T) {
 
 	*blackHole = true
 
-	err := Init(nil, "")
+	fn, err := Init(nil, nil, "")
 	if err != nil {
 		t.Fatalf("%s", err)
 	}
 
-	if len(getActiveNotifiers()) != 1 {
-		t.Fatalf("expected to get 1 notifier; got %d", len(getActiveNotifiers()))
+	nfs := fn()
+	if len(nfs) != 1 {
+		t.Fatalf("expected to get 1 notifier; got %d", len(nfs))
 	}
 
 	targets := GetTargets()
@@ -100,114 +91,3 @@ func TestBlackHole(t *testing.T) {
 		t.Fatalf("expected to get \"blackhole\"; got %q instead", nf1.Addr())
 	}
 }
-
-func TestGetAlertURLGenerator(t *testing.T) {
-	oldAlertURLGeneratorFn := AlertURLGeneratorFn
-	defer func() { AlertURLGeneratorFn = oldAlertURLGeneratorFn }()
-
-	testAlert := Alert{GroupID: 42, ID: 2, Value: 4, Labels: map[string]string{"tenant": "baz"}}
-	u, _ := url.Parse("https://victoriametrics.com/path")
-	err := InitAlertURLGeneratorFn(u, "", false)
-	if err != nil {
-		t.Fatalf("unexpected error %s", err)
-	}
-	exp := fmt.Sprintf("https://victoriametrics.com/path/vmalert/alert?%s=42&%s=2", "group_id", "alert_id")
-	if exp != AlertURLGeneratorFn(testAlert) {
-		t.Fatalf("unexpected url want %s, got %s", exp, AlertURLGeneratorFn(testAlert))
-	}
-	err = InitAlertURLGeneratorFn(nil, "foo?{{invalid}}", true)
-	if err == nil {
-		t.Fatalf("expected template validation error got nil")
-	}
-	err = InitAlertURLGeneratorFn(u, "foo?query={{$value}}&ds={{ $labels.tenant }}", true)
-	if err != nil {
-		t.Fatalf("unexpected error %s", err)
-	}
-	if exp := "https://victoriametrics.com/path/foo?query=4&ds=baz"; exp != AlertURLGeneratorFn(testAlert) {
-		t.Fatalf("unexpected url want %s, got %s", exp, AlertURLGeneratorFn(testAlert))
-	}
-}
-
-func TestSendAlerts(t *testing.T) {
-	oldAlertURLGeneratorFn := AlertURLGeneratorFn
-	defer func() { AlertURLGeneratorFn = oldAlertURLGeneratorFn }()
-	AlertURLGeneratorFn = func(alert Alert) string {
-		return ""
-	}
-	mux := http.NewServeMux()
-	mux.HandleFunc("/", func(_ http.ResponseWriter, _ *http.Request) {
-		t.Fatalf("should not be called")
-	})
-	mux.HandleFunc(alertManagerPath, func(w http.ResponseWriter, r *http.Request) {
-		var a []struct {
-			Labels map[string]string `json:"labels"`
-		}
-		if err := json.NewDecoder(r.Body).Decode(&a); err != nil {
-			t.Fatalf("can not unmarshal data into alert %s", err)
-		}
-		if len(a) != 2 {
-			t.Fatalf("expected 2 alert in array got %d", len(a))
-		}
-		if len(a[0].Labels) != 4 {
-			t.Fatalf("expected 4 labels got %d", len(a[0].Labels))
-		}
-		if a[0].Labels["env"] != "prod" {
-			t.Fatalf("expected env label to be prod during relabeling, got %s", a[0].Labels["env"])
-		}
-		if a[0].Labels["c"] != "baz" {
-			t.Fatalf("expected c label to be baz during relabeling, got %s", a[0].Labels["c"])
-		}
-		if len(a[1].Labels) != 1 {
-			t.Fatalf("expected 1 labels got %d", len(a[1].Labels))
-		}
-	})
-	srv := httptest.NewServer(mux)
-	defer srv.Close()
-
-	f, err := os.CreateTemp("", "")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer fs.MustRemovePath(f.Name())
-
-	rawConfig := `
-static_configs:
-  - targets:
-      - %s
-    alert_relabel_configs:
-    - source_labels: [b]
-      target_label: "c"
-alert_relabel_configs:
-  - source_labels: [a]
-    target_label: "b"
-  - target_label: "env"
-    replacement: "prod"
-`
-	config := fmt.Sprintf(rawConfig, srv.URL+alertManagerPath)
-	writeToFile(f.Name(), config)
-
-	oldConfigPath := configPath
-	defer func() { configPath = oldConfigPath }()
-	*configPath = f.Name()
-	err = Init(nil, "")
-	if err != nil {
-		t.Fatalf("unexpected error when parse notifier config: %s", err)
-	}
-
-	firingAlerts := []Alert{
-		{
-			Name:   "alert1",
-			Labels: map[string]string{"a": "baz"},
-		},
-		{
-			Name:   "alert2",
-			Labels: map[string]string{},
-		},
-	}
-	errG := Send(context.Background(), firingAlerts, nil)
-	for err := range errG {
-		if err != nil {
-			t.Errorf("unexpected error when sending alerts: %s", err)
-		}
-	}
-}

app/vmalert/notifier/notifier.go

@@ -1,21 +1,15 @@
 package notifier
 
-import (
-	"context"
-
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
-)
+import "context"
 
 // Notifier is a common interface for alert manager provider
 type Notifier interface {
 	// Send sends the given list of alerts.
 	// Returns an error if fails to send the alerts.
 	// Must unblock if the given ctx is cancelled.
-	Send(ctx context.Context, alerts []Alert, alertLabels [][]prompb.Label, notifierHeaders map[string]string) error
+	Send(ctx context.Context, alerts []Alert, notifierHeaders map[string]string) error
 	// Addr returns address where alerts are sent.
 	Addr() string
-	// LastError returns error, that occurred during last attempt to send data
-	LastError() string
 	// Close is a destructor for the Notifier
 	Close()
 }

app/vmalert/notifier/notifier_blackhole.go

@@ -1,10 +1,6 @@
 package notifier
 
-import (
-	"context"
-
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
-)
+import "context"
 
 // blackHoleNotifier is a Notifier stub, used when no notifications need
 // to be sent.
@@ -14,7 +10,7 @@ type blackHoleNotifier struct {
 }
 
 // Send will send no notifications, but increase the metric.
-func (bh *blackHoleNotifier) Send(_ context.Context, alerts []Alert, _ [][]prompb.Label, _ map[string]string) error { //nolint:revive
+func (bh *blackHoleNotifier) Send(_ context.Context, alerts []Alert, _ map[string]string) error { //nolint:revive
 	bh.metrics.alertsSent.Add(len(alerts))
 	return nil
 }
@@ -29,11 +25,6 @@ func (bh *blackHoleNotifier) Close() {
 	bh.metrics.close()
 }
 
-// LastError return last notifier's error
-func (bh *blackHoleNotifier) LastError() string {
-	return ""
-}
-
 // newBlackHoleNotifier creates a new blackHoleNotifier
 func newBlackHoleNotifier() *blackHoleNotifier {
 	address := "blackhole"

app/vmalert/notifier/notifier_blackhole_test.go

@@ -5,7 +5,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
 	metricset "github.com/VictoriaMetrics/metrics"
 )
 
@@ -17,7 +16,7 @@ func TestBlackHoleNotifier_Send(t *testing.T) {
 		Start:       time.Now().UTC(),
 		End:         time.Now().UTC(),
 		Annotations: map[string]string{"a": "b", "c": "d", "e": "f"},
-	}}, [][]prompb.Label{{}}, nil); err != nil {
+	}}, nil); err != nil {
 		t.Fatalf("unexpected error %s", err)
 	}
 
@@ -35,7 +34,7 @@ func TestBlackHoleNotifier_Close(t *testing.T) {
 		Start:       time.Now().UTC(),
 		End:         time.Now().UTC(),
 		Annotations: map[string]string{"a": "b", "c": "d", "e": "f"},
-	}}, [][]prompb.Label{{}}, nil); err != nil {
+	}}, nil); err != nil {
 		t.Fatalf("unexpected error %s", err)
 	}
 

app/vmalert/notifier/testdata/consul.bad.yaml

@@ -1,19 +0,0 @@
-consul_sd_configs:
-  - server: localhost:8500
-    scheme: http
-    services:
-      - alertmanager
-    alert_relabel_configs:
-    - action: keep
-      source_labels: [env]
-      regex: "prod"
-  - server: localhost:8500
-    services:
-      - consul
-    alert_relabel_configs:
-    - action: keep
-      source_labels: [env]
-      regex: "(abc"
-alert_relabel_configs:
-  - target_label: "foo"
-    replacement: "aaa"

app/vmalert/notifier/testdata/dns.bad.yaml

@@ -1,13 +0,0 @@
-dns_sd_configs:
-  - names:
-      - cloudflare.com
-    type: 'A'
-    port: 9093
-relabel_configs:
-  - source_labels: [__meta_dns_name]
-    replacement: '${1}'
-    target_label: dns_name
-alert_relabel_configs:
-  - action: keep
-    source_labels: [env]
-    regex: "(abc"

app/vmalert/notifier/testdata/mixed.good.yaml

@@ -2,19 +2,12 @@ static_configs:
   - targets:
       - localhost:9093
       - localhost:9095
-    alert_relabel_configs:
-      - action: keep
-        source_labels: [env]
-        regex: "static"
+
 consul_sd_configs:
   - server: localhost:8500
     scheme: http
     services:
       - alertmanager
-    alert_relabel_configs:
-      - action: keep
-        source_labels: [env]
-        regex: "consul"
   - server: localhost:8500
     services:
       - consul
@@ -24,10 +17,6 @@ dns_sd_configs:
       - cloudflare.com
     type: 'A'
     port: 9093
-    alert_relabel_configs:
-      - action: keep
-        source_labels: [env]
-        regex: "dns"
 
 relabel_configs:
   - source_labels: [__meta_consul_tags]
@@ -36,4 +25,4 @@ relabel_configs:
     target_label: __scheme__
   - source_labels: [__meta_dns_name]
     replacement: '${1}'
-    target_label: dns_name
+    target_label: dns_name

app/vmalert/notifier/testdata/static.good.yaml

@@ -1,14 +1,22 @@
+headers:
+  - 'CustomHeader: foo'
+
 static_configs:
   - targets:
-      - http://192.168.0.101:9093
-    alert_relabel_configs:
-    - target_label: "foo"
-      replacement: "aaa"
+      - localhost:9093
+      - localhost:9095
+      - https://localhost:9093/test/api/v2/alerts
+    basic_auth:
+      username: foo
+      password: bar
 
   - targets:
-      - http://192.168.0.101:9093
-    alert_relabel_configs:
-    - target_label: "foo"
-      replacement: "ccc"
-
+      - localhost:9096
+      - localhost:9097
+    basic_auth:
+      username: foo
+      password: baz
 
+alert_relabel_configs:
+  - target_label: "foo"
+    replacement: "aaa"

app/vmalert/notifier/web.go

@@ -1,19 +0,0 @@
-package notifier
-
-// ApiNotifier represents a Notifier configuration for WEB view
-type ApiNotifier struct {
-	// Kind is a Notifier type
-	Kind TargetType `json:"kind"`
-	// Targets is a list of Notifier targets
-	Targets []*ApiTarget `json:"targets"`
-}
-
-// ApiTarget represents a specific Notifier target for WEB view
-type ApiTarget struct {
-	// Address is a URL for sending notifications
-	Address string `json:"address"`
-	// Labels is a list of labels to add to each sent notification
-	Labels map[string]string `json:"labels"`
-	// LastError contains the error faced while sending to notifier.
-	LastError string `json:"lastError"`
-}

app/vmalert/remoteread/init.go

@@ -14,9 +14,9 @@ import (
 )
 
 var (
-	addr = flag.String("remoteRead.url", "", "Optional URL to datasource compatible with MetricsQL. It can be single node VictoriaMetrics or vmselect. "+
-		"Remote read is used to restore alerts state. "+
-		"This configuration makes sense only if vmalert was configured with '-remoteWrite.url' before and has been successfully persisted its state. "+
+	addr = flag.String("remoteRead.url", "", "Optional URL to datasource compatible with MetricsQL. It can be single node VictoriaMetrics or vmselect."+
+		"Remote read is used to restore alerts state."+
+		"This configuration makes sense only if `vmalert` was configured with `remoteWrite.url` before and has been successfully persisted its state. "+
 		"Supports address in the form of IP address with a port (e.g., http://127.0.0.1:8428) or DNS SRV record. "+
 		"See also '-remoteRead.disablePathAppend', '-remoteRead.showURL'.")
 
@@ -28,7 +28,6 @@ var (
 		"Multiple headers must be delimited by '^^': -remoteRead.headers='header1:value1^^header2:value2'")
 
 	basicAuthUsername     = flag.String("remoteRead.basicAuth.username", "", "Optional basic auth username for -remoteRead.url")
-	basicAuthUsernameFile = flag.String("remoteRead.basicAuth.usernameFile", "", "Optional path to basic auth username to use for -remoteRead.url")
 	basicAuthPassword     = flag.String("remoteRead.basicAuth.password", "", "Optional basic auth password for -remoteRead.url")
 	basicAuthPasswordFile = flag.String("remoteRead.basicAuth.passwordFile", "", "Optional path to basic auth password to use for -remoteRead.url")
 
@@ -81,7 +80,7 @@ func Init() (datasource.QuerierBuilder, error) {
 		return nil, fmt.Errorf("cannot parse JSON for -remoteRead.oauth2.endpointParams=%s: %w", *oauth2EndpointParams, err)
 	}
 	authCfg, err := vmalertutil.AuthConfig(
-		vmalertutil.WithBasicAuth(*basicAuthUsername, *basicAuthUsernameFile, *basicAuthPassword, *basicAuthPasswordFile),
+		vmalertutil.WithBasicAuth(*basicAuthUsername, *basicAuthPassword, *basicAuthPasswordFile),
 		vmalertutil.WithBearer(*bearerToken, *bearerTokenFile),
 		vmalertutil.WithOAuth(*oauth2ClientID, *oauth2ClientSecret, *oauth2ClientSecretFile, *oauth2TokenURL, *oauth2Scopes, endpointParams),
 		vmalertutil.WithHeaders(*headers))

app/vmalert/remotewrite/client.go

@@ -11,23 +11,16 @@ import (
 	"path"
 	"strings"
 	"sync"
-	"sync/atomic"
 	"time"
 
-	"github.com/cespare/xxhash/v2"
 	"github.com/golang/snappy"
 
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/cgroup"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding/zstd"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httputil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/netutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/timeutil"
-
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 	"github.com/VictoriaMetrics/metrics"
 )
 
@@ -53,18 +46,13 @@ type Client struct {
 	addr          string
 	c             *http.Client
 	authCfg       *promauth.Config
-	input         chan prompb.TimeSeries
+	input         chan prompbmarshal.TimeSeries
 	flushInterval time.Duration
 	maxBatchSize  int
 	maxQueueSize  int
 
 	wg     sync.WaitGroup
 	doneCh chan struct{}
-
-	// Whether to encode the write request with VictoriaMetrics remote write protocol.
-	// It is set to true by default, and will be switched to false if the client
-	// receives specific errors indicating that the remote storage doesn't support VictoriaMetrics remote write protocol.
-	isVMRemoteWrite atomic.Bool
 }
 
 // Config is config for remote write client.
@@ -122,21 +110,18 @@ func NewClient(ctx context.Context, cfg Config) (*Client, error) {
 		maxBatchSize:  cfg.MaxBatchSize,
 		maxQueueSize:  cfg.MaxQueueSize,
 		doneCh:        make(chan struct{}),
-		input:         make(chan prompb.TimeSeries, cfg.MaxQueueSize),
+		input:         make(chan prompbmarshal.TimeSeries, cfg.MaxQueueSize),
 	}
-	c.isVMRemoteWrite.Store(true)
 
 	for i := 0; i < cc; i++ {
-		c.wg.Go(func() {
-			c.run(ctx, i)
-		})
+		c.run(ctx)
 	}
 	return c, nil
 }
 
 // Push adds timeseries into queue for writing into remote storage.
 // Push returns and error if client is stopped or if queue is full.
-func (c *Client) Push(s prompb.TimeSeries) error {
+func (c *Client) Push(s prompbmarshal.TimeSeries) error {
 	rwTotal.Inc()
 	select {
 	case <-c.doneCh:
@@ -171,8 +156,9 @@ func (c *Client) Close() error {
 	return nil
 }
 
-func (c *Client) run(ctx context.Context, id int) {
-	wr := &prompb.WriteRequest{}
+func (c *Client) run(ctx context.Context) {
+	ticker := time.NewTicker(c.flushInterval)
+	wr := &prompbmarshal.WriteRequest{}
 	shutdown := func() {
 		lastCtx, cancel := context.WithTimeout(context.Background(), defaultWriteTimeout)
 
@@ -187,73 +173,42 @@ func (c *Client) run(ctx context.Context, id int) {
 
 		cancel()
 	}
-
-	// add jitter to spread remote write flushes over the flush interval to avoid congestion at the remote write destination
-	h := xxhash.Sum64(bytesutil.ToUnsafeBytes(fmt.Sprintf("%d", id)))
-	randJitter := uint64(float64(c.flushInterval) * (float64(h) / (1 << 64)))
-	timer := time.NewTimer(time.Duration(randJitter))
-addJitter:
-	for {
-		select {
-		case <-c.doneCh:
-			timer.Stop()
-			shutdown()
-			return
-		case <-ctx.Done():
-			timer.Stop()
-			shutdown()
-			return
-		case <-timer.C:
-			break addJitter
-		}
-	}
-
-	ticker := time.NewTicker(c.flushInterval)
-	defer ticker.Stop()
-	for {
-		select {
-		case <-c.doneCh:
-			shutdown()
-			return
-		case <-ctx.Done():
-			shutdown()
-			return
-		case <-ticker.C:
-			c.flush(ctx, wr)
-			// drain the potential stale tick to avoid small or empty flushes after a slow flush.
+	c.wg.Add(1)
+	go func() {
+		defer c.wg.Done()
+		defer ticker.Stop()
+		for {
 			select {
+			case <-c.doneCh:
+				shutdown()
+				return
+			case <-ctx.Done():
+				shutdown()
+				return
 			case <-ticker.C:
-			default:
-			}
-		case ts, ok := <-c.input:
-			if !ok {
-				continue
-			}
-			wr.Timeseries = append(wr.Timeseries, ts)
-			if len(wr.Timeseries) >= c.maxBatchSize {
 				c.flush(ctx, wr)
+			case ts, ok := <-c.input:
+				if !ok {
+					continue
+				}
+				wr.Timeseries = append(wr.Timeseries, ts)
+				if len(wr.Timeseries) >= c.maxBatchSize {
+					c.flush(ctx, wr)
+				}
 			}
 		}
-	}
+	}()
 }
 
 var (
 	rwErrors = metrics.NewCounter(`vmalert_remotewrite_errors_total`)
 	rwTotal  = metrics.NewCounter(`vmalert_remotewrite_total`)
 
-	// sentRows and sentBytes are historical counters that can now be replaced by flushedRows and flushedBytes histograms. They may be deprecated in the future after the new histograms have been adopted for some time.
-	sentRows             = metrics.NewCounter(`vmalert_remotewrite_sent_rows_total`)
-	sentBytes            = metrics.NewCounter(`vmalert_remotewrite_sent_bytes_total`)
-	flushedRows          = metrics.NewHistogram(`vmalert_remotewrite_sent_rows`)
-	flushedBytes         = metrics.NewHistogram(`vmalert_remotewrite_sent_bytes`)
-	droppedRows          = metrics.NewCounter(`vmalert_remotewrite_dropped_rows_total`)
-	sendDuration         = metrics.NewFloatCounter(`vmalert_remotewrite_send_duration_seconds_total`)
-	bufferFlushDuration  = metrics.NewHistogram(`vmalert_remotewrite_flush_duration_seconds`)
-	remoteWriteQueueSize = metrics.NewHistogram(`vmalert_remotewrite_queue_size`)
-
-	_ = metrics.NewGauge(`vmalert_remotewrite_queue_capacity`, func() float64 {
-		return float64(*maxQueueSize)
-	})
+	sentRows            = metrics.NewCounter(`vmalert_remotewrite_sent_rows_total`)
+	sentBytes           = metrics.NewCounter(`vmalert_remotewrite_sent_bytes_total`)
+	droppedRows         = metrics.NewCounter(`vmalert_remotewrite_dropped_rows_total`)
+	sendDuration        = metrics.NewFloatCounter(`vmalert_remotewrite_send_duration_seconds_total`)
+	bufferFlushDuration = metrics.NewHistogram(`vmalert_remotewrite_flush_duration_seconds`)
 
 	_ = metrics.NewGauge(`vmalert_remotewrite_concurrency`, func() float64 {
 		return float64(*concurrency)
@@ -266,46 +221,35 @@ func GetDroppedRows() int { return int(droppedRows.Get()) }
 // flush is a blocking function that marshals WriteRequest and sends
 // it to remote-write endpoint. Flush performs limited amount of retries
 // if request fails.
-func (c *Client) flush(ctx context.Context, wr *prompb.WriteRequest) {
-	remoteWriteQueueSize.Update(float64(len(c.input)))
+func (c *Client) flush(ctx context.Context, wr *prompbmarshal.WriteRequest) {
 	if len(wr.Timeseries) < 1 {
 		return
 	}
 	defer wr.Reset()
 	defer bufferFlushDuration.UpdateDuration(time.Now())
 
-	bb := writeRequestBufPool.Get()
-	bb.B = wr.MarshalProtobuf(bb.B[:0])
-	zb := compressBufPool.Get()
-	defer compressBufPool.Put(zb)
-	if c.isVMRemoteWrite.Load() {
-		zb.B = zstd.CompressLevel(zb.B[:0], bb.B, 0)
-	} else {
-		zb.B = snappy.Encode(zb.B[:cap(zb.B)], bb.B)
-	}
-	writeRequestBufPool.Put(bb)
+	data := wr.MarshalProtobuf(nil)
+	b := snappy.Encode(nil, data)
 
-	maxRetryInterval := *retryMaxTime
-	bt := timeutil.NewBackoffTimer(*retryMinInterval, maxRetryInterval)
+	retryInterval, maxRetryInterval := *retryMinInterval, *retryMaxTime
+	if retryInterval > maxRetryInterval {
+		retryInterval = maxRetryInterval
+	}
 	timeStart := time.Now()
 	defer func() {
 		sendDuration.Add(time.Since(timeStart).Seconds())
 	}()
-
-	attempts := 0
 L:
-	for {
-		err := c.send(ctx, zb.B)
+	for attempts := 0; ; attempts++ {
+		err := c.send(ctx, b)
 		if err != nil && (errors.Is(err, io.EOF) || netutil.IsTrivialNetworkError(err)) {
 			// Something in the middle between client and destination might be closing
 			// the connection. So we do a one more attempt in hope request will succeed.
-			err = c.send(ctx, zb.B)
+			err = c.send(ctx, b)
 		}
 		if err == nil {
 			sentRows.Add(len(wr.Timeseries))
-			sentBytes.Add(len(zb.B))
-			flushedRows.Update(float64(len(wr.Timeseries)))
-			flushedBytes.Update(float64(len(zb.B)))
+			sentBytes.Add(len(b))
 			return
 		}
 
@@ -331,13 +275,13 @@ L:
 			break
 		}
 
-		if bt.CurrentDelay() > timeLeftForRetries {
-			bt.SetDelay(timeLeftForRetries)
+		if retryInterval > timeLeftForRetries {
+			retryInterval = timeLeftForRetries
 		}
 		// sleeping to prevent remote db hammering
-		bt.Wait(ctx.Done())
+		time.Sleep(retryInterval)
+		retryInterval *= 2
 
-		attempts++
 	}
 
 	rwErrors.Inc()
@@ -357,16 +301,12 @@ func (c *Client) send(ctx context.Context, data []byte) error {
 		return fmt.Errorf("failed to create new HTTP request: %w", err)
 	}
 
-	req.Header.Set("User-Agent", "vmalert")
+	// RFC standard compliant headers
+	req.Header.Set("Content-Encoding", "snappy")
 	req.Header.Set("Content-Type", "application/x-protobuf")
 
-	if encoding.IsZstd(data) {
-		req.Header.Set("Content-Encoding", "zstd")
-		req.Header.Set("X-VictoriaMetrics-Remote-Write-Version", "1")
-	} else {
-		req.Header.Set("Content-Encoding", "snappy")
-		req.Header.Set("X-Prometheus-Remote-Write-Version", "0.1.0")
-	}
+	// Prometheus compliant headers
+	req.Header.Set("X-Prometheus-Remote-Write-Version", "0.1.0")
 
 	if c.authCfg != nil {
 		err = c.authCfg.SetHeaders(req, true)
@@ -395,29 +335,6 @@ func (c *Client) send(ctx context.Context, data []byte) error {
 		// respond with HTTP 2xx status code when write is successful.
 		return nil
 	case 4:
-		// - Remote Write v1 specification implicitly expects a `400 Bad Request` when the encoding is not supported.
-		// - Remote Write v2 specification explicitly specifies a `415 Unsupported Media Type` for unsupported encodings.
-		// - Real-world implementations of v1 use both 400 and 415 status codes.
-		// See more in research: https://github.com/VictoriaMetrics/VictoriaMetrics/pull/8462#issuecomment-2786918054
-		if resp.StatusCode == http.StatusUnsupportedMediaType || resp.StatusCode == http.StatusBadRequest {
-			if encoding.IsZstd(data) {
-				logger.Infof("received unsupported media type or bad request from remote storage at %q. Re-packing the block to Prometheus remote write and retrying."+
-					"See https://docs.victoriametrics.com/victoriametrics/vmagent/#victoriametrics-remote-write-protocol", req.URL.Redacted())
-				zstdBlockLen := len(data)
-				data, err = repackBlockFromZstdToSnappy(data)
-				if err == nil {
-					logger.Infof("received unsupported media type or bad request from remote storage at %q. Downgrading protocol from VictoriaMetrics to Prometheus remote write for all future requests. "+
-						"See https://docs.victoriametrics.com/victoriametrics/vmagent/#victoriametrics-remote-write-protocol", req.URL.Redacted())
-					c.isVMRemoteWrite.Store(false)
-					return c.send(ctx, data)
-				}
-
-				logger.Warnf("failed to repack zstd block (%d bytes) to snappy: %s; The block will be rejected. "+
-					"Possible cause: ungraceful shutdown leading to persisted queue corruption.",
-					zstdBlockLen, err)
-			}
-		}
-
 		if resp.StatusCode != http.StatusTooManyRequests {
 			// MUST NOT retry write requests on HTTP 4xx responses other than 429
 			return &nonRetriableError{
@@ -438,19 +355,3 @@ type nonRetriableError struct {
 func (e *nonRetriableError) Error() string {
 	return e.err.Error()
 }
-
-var (
-	writeRequestBufPool bytesutil.ByteBufferPool
-	compressBufPool     bytesutil.ByteBufferPool
-)
-
-// repackBlockFromZstdToSnappy repacks the given zstd-compressed block to snappy-compressed block.
-func repackBlockFromZstdToSnappy(zstdBlock []byte) ([]byte, error) {
-	plainBlock := make([]byte, 0, len(zstdBlock)*2)
-	plainBlock, err := encoding.DecompressZSTD(plainBlock, zstdBlock)
-	if err != nil {
-		return nil, err
-	}
-
-	return snappy.Encode(nil, plainBlock), nil
-}

app/vmalert/remotewrite/client_test.go

@@ -12,8 +12,10 @@ import (
 	"testing"
 	"time"
 
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding/zstd"
+	"github.com/golang/snappy"
+
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 )
 
 func TestClient_Push(t *testing.T) {
@@ -43,9 +45,9 @@ func TestClient_Push(t *testing.T) {
 
 	r := rand.New(rand.NewSource(1))
 	const rowsN = int(1e4)
-	for range rowsN {
-		s := prompb.TimeSeries{
-			Samples: []prompb.Sample{{
+	for i := 0; i < rowsN; i++ {
+		s := prompbmarshal.TimeSeries{
+			Samples: []prompbmarshal.Sample{{
 				Value:     r.Float64(),
 				Timestamp: time.Now().Unix(),
 			}},
@@ -101,11 +103,8 @@ func TestClient_run_maxBatchSizeDuringShutdown(t *testing.T) {
 		}
 
 		// push time series to the client.
-		for range pushCnt {
-			if err = rwClient.Push(prompb.TimeSeries{
-				Labels:  []prompb.Label{{Name: "__name__", Value: "m"}},
-				Samples: []prompb.Sample{{Value: 1, Timestamp: 1000}},
-			}); err != nil {
+		for i := 0; i < pushCnt; i++ {
+			if err = rwClient.Push(prompbmarshal.TimeSeries{}); err != nil {
 				t.Fatalf("cannot time series to the client: %s", err)
 			}
 		}
@@ -158,8 +157,8 @@ func (rw *rwServer) handler(w http.ResponseWriter, r *http.Request) {
 	}
 
 	h := r.Header.Get("Content-Encoding")
-	if h != "zstd" {
-		rw.err(w, fmt.Errorf("header read error: Content-Encoding is not zstd (%q)", h))
+	if h != "snappy" {
+		rw.err(w, fmt.Errorf("header read error: Content-Encoding is not snappy (%q)", h))
 	}
 
 	h = r.Header.Get("Content-Type")
@@ -167,9 +166,9 @@ func (rw *rwServer) handler(w http.ResponseWriter, r *http.Request) {
 		rw.err(w, fmt.Errorf("header read error: Content-Type is not x-protobuf (%q)", h))
 	}
 
-	h = r.Header.Get("X-VictoriaMetrics-Remote-Write-Version")
-	if h != "1" {
-		rw.err(w, fmt.Errorf("header read error: X-VictoriaMetrics-Remote-Write-Version is not 1 (%q)", h))
+	h = r.Header.Get("X-Prometheus-Remote-Write-Version")
+	if h != "0.1.0" {
+		rw.err(w, fmt.Errorf("header read error: X-Prometheus-Remote-Write-Version is not 0.1.0 (%q)", h))
 	}
 
 	data, err := io.ReadAll(r.Body)
@@ -179,14 +178,13 @@ func (rw *rwServer) handler(w http.ResponseWriter, r *http.Request) {
 	}
 	defer func() { _ = r.Body.Close() }()
 
-	b, err := zstd.Decompress(nil, data)
+	b, err := snappy.Decode(nil, data)
 	if err != nil {
 		rw.err(w, fmt.Errorf("decode err: %w", err))
 		return
 	}
-	wru := &prompb.WriteRequestUnmarshaler{}
-	wr, err := wru.UnmarshalProtobuf(b)
-	if err != nil {
+	wr := &prompb.WriteRequest{}
+	if err := wr.UnmarshalProtobuf(b); err != nil {
 		rw.err(w, fmt.Errorf("unmarhsal err: %w", err))
 		return
 	}

app/vmalert/remotewrite/debug_client.go

@@ -9,10 +9,11 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding/zstd"
+	"github.com/golang/snappy"
+
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httputil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
 )
 
 // DebugClient won't push series periodically, but will write data to remote endpoint
@@ -47,10 +48,10 @@ func NewDebugClient() (*DebugClient, error) {
 }
 
 // Push sends the given timeseries to the remote storage.
-func (c *DebugClient) Push(s prompb.TimeSeries) error {
+func (c *DebugClient) Push(s prompbmarshal.TimeSeries) error {
 	c.wg.Add(1)
 	defer c.wg.Done()
-	wr := &prompb.WriteRequest{Timeseries: []prompb.TimeSeries{s}}
+	wr := &prompbmarshal.WriteRequest{Timeseries: []prompbmarshal.TimeSeries{s}}
 	data := wr.MarshalProtobuf(nil)
 
 	return c.send(data)
@@ -63,17 +64,19 @@ func (c *DebugClient) Close() error {
 }
 
 func (c *DebugClient) send(data []byte) error {
-	b := zstd.CompressLevel(nil, data, 0)
+	b := snappy.Encode(nil, data)
 	r := bytes.NewReader(b)
 	req, err := http.NewRequest(http.MethodPost, c.addr, r)
 	if err != nil {
 		return fmt.Errorf("failed to create new HTTP request: %w", err)
 	}
 
-	req.Header.Set("Content-Encoding", "zstd")
+	// RFC standard compliant headers
+	req.Header.Set("Content-Encoding", "snappy")
 	req.Header.Set("Content-Type", "application/x-protobuf")
 
-	req.Header.Set("X-VictoriaMetrics-Remote-Write-Version", "1")
+	// Prometheus compliant headers
+	req.Header.Set("X-Prometheus-Remote-Write-Version", "0.1.0")
 
 	if !*disablePathAppend {
 		req.URL.Path = path.Join(req.URL.Path, "/api/v1/write")