pulsar-ci-flaky.yaml

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name: Pulsar CI Flaky
on:
  pull_request:
    branches:
      - master
      - branch-*
      - pulsar-*
  schedule:
    # scheduled job with JDK 17
    - cron: '0 12 * * *'
    # scheduled job with JDK 21
    # if cron expression is changed, make sure to update the expression in jdk_major_version step in preconditions job
    - cron: '0 6 * * *'
  workflow_dispatch:
    inputs:
      collect_coverage:
        description: 'Collect test coverage and upload to Codecov'
        required: true
        type: boolean
        default: true
      jdk_major_version:
        description: 'JDK major version to use for the build'
        required: true
        type: choice
        options:
          - '17'
          - '21'
        default: '17'
      trace_test_resource_cleanup:
        description: 'Collect thread & heap information before exiting a test JVM. When set to "on", thread dump and heap histogram will be collected. When set to "full", a heap dump will also be collected.'
        required: true
        type: choice
        options:
          - 'off'
          - 'on'
          - 'full'
        default: 'off'
      thread_leak_detector_wait_millis:
        description: 'Duration in ms to wait for threads to exit in thread leak detection between test classes. It is necessary to wait for threads to complete before they are determined to be leaked threads.'
        required: true
        type: number
        default: 10000

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name }}${{ github.event_name == 'workflow_dispatch' && github.event.inputs.jdk_major_version || '' }}
  cancel-in-progress: true

env:
  MAVEN_OPTS: -Xss1500k -Xmx1500m -Daether.connector.http.reuseConnections=false -Daether.connector.requestTimeout=60000 -Dhttp.keepAlive=false -Dmaven.wagon.http.pool=false -Dmaven.wagon.http.retryHandler.class=standard -Dmaven.wagon.http.retryHandler.count=3 -Dmaven.wagon.http.retryHandler.requestSentEnabled=true -Dmaven.wagon.http.serviceUnavailableRetryStrategy.class=standard -Dmaven.wagon.rto=60000
  # defines the retention period for the intermediate build artifacts needed for rerunning a failed build job
  # it's possible to rerun individual failed jobs when the build artifacts are available
  # if the artifacts have already been expired, the complete workflow can be rerun by closing and reopening the PR or by rebasing the PR
  ARTIFACT_RETENTION_DAYS: 3
  JDK_DISTRIBUTION: corretto

jobs:
  preconditions:
    name: Preconditions
    runs-on: ubuntu-22.04
    outputs:
      docs_only: ${{ steps.check_changes.outputs.docs_only }}
      changed_tests: ${{ steps.changes.outputs.tests_files }}
      need_owasp: ${{ steps.changes.outputs.need_owasp }}
      collect_coverage: ${{ steps.check_coverage.outputs.collect_coverage }}
      jdk_major_version: ${{ steps.jdk_major_version.outputs.jdk_major_version }}

    steps:
      - name: Cancel scheduled jobs in forks by default
        if: ${{ github.repository != 'apache/pulsar' && github.event_name == 'schedule' }}
        uses: actions/github-script@v6
        with:
          script: |
            await github.rest.actions.cancelWorkflowRun({owner: context.repo.owner, repo: context.repo.repo, run_id: context.runId});
            process.exit(1);

      - name: Select JDK major version
        id: jdk_major_version
        run: |
          # use JDK 21 for the scheduled build with cron expression '0 6 * * *'
          if [[ "${{ github.event_name == 'schedule' && github.event.schedule == '0 6 * * *' && 'true' || 'false' }}" == "true" ]]; then
            echo "jdk_major_version=21" >> $GITHUB_OUTPUT
            exit 0
          fi
          # use JDK 17 for build unless overridden with workflow_dispatch input
          echo "jdk_major_version=${{ github.event_name == 'workflow_dispatch' && github.event.inputs.jdk_major_version || '17'}}" >> $GITHUB_OUTPUT

      - name: checkout
        if: ${{ github.event_name == 'pull_request' }}
        uses: actions/checkout@v4

      - name: Detect changed files
        if: ${{ github.event_name == 'pull_request' }}
        id:   changes
        uses: apache/pulsar-test-infra/paths-filter@master
        with:
          filters: .github/changes-filter.yaml
          list-files: csv

      - name: Check changed files
        if: ${{ github.event_name == 'pull_request' }}
        id: check_changes
        run: |
          if [[ "${GITHUB_EVENT_NAME}" != "schedule" && "${GITHUB_EVENT_NAME}" != "workflow_dispatch" ]]; then
            echo "docs_only=${{ fromJSON(steps.changes.outputs.all_count) == fromJSON(steps.changes.outputs.docs_count) && fromJSON(steps.changes.outputs.docs_count) > 0 }}" >> $GITHUB_OUTPUT
          else
            echo docs_only=false >> $GITHUB_OUTPUT
          fi

      - name: Check if coverage should be collected
        id: check_coverage
        run: |
          echo "collect_coverage=${{ 
          (steps.check_changes.outputs.docs_only != 'true' && github.event_name != 'workflow_dispatch' 
            && (github.base_ref == 'master' || github.ref_name == 'master')) 
          || (github.event_name == 'workflow_dispatch' && github.event.inputs.collect_coverage == 'true')
          }}"  >> $GITHUB_OUTPUT

      - name: Check if the PR has been approved for testing
        if: ${{ steps.check_changes.outputs.docs_only != 'true' && github.repository == 'apache/pulsar' && github.event_name == 'pull_request' }}
        env:
          GITHUB_RUN_ATTEMPT: ${{ github.run_attempt }}
          GITHUB_TOKEN: ${{ github.token }}
        run: |
          build/pulsar_ci_tool.sh check_ready_to_test

  build-and-test:
    needs: preconditions
    name: Flaky tests suite
    env:
      JOB_NAME: Flaky tests suite
      COLLECT_COVERAGE: "${{ needs.preconditions.outputs.collect_coverage }}"
      GRADLE_ENTERPRISE_ACCESS_KEY: ${{ secrets.GE_ACCESS_TOKEN }}
      CI_JDK_MAJOR_VERSION: ${{ needs.preconditions.outputs.jdk_major_version }}
      TRACE_TEST_RESOURCE_CLEANUP: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.trace_test_resource_cleanup || 'off' }}
      TRACE_TEST_RESOURCE_CLEANUP_DIR: ${{ github.workspace }}/target/trace-test-resource-cleanup
      THREAD_LEAK_DETECTOR_WAIT_MILLIS: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.thread_leak_detector_wait_millis || 10000 }}
      THREAD_LEAK_DETECTOR_DIR: ${{ github.workspace }}/target/thread-leak-dumps
    runs-on: ubuntu-22.04
    timeout-minutes: 100
    if: ${{ needs.preconditions.outputs.docs_only != 'true' }}
    steps:
      - name: checkout
        uses: actions/checkout@v4

      - name: Tune Runner VM
        uses: ./.github/actions/tune-runner-vm

      - name: Clean Disk when tracing test resource cleanup
        if: ${{ env.TRACE_TEST_RESOURCE_CLEANUP != 'off' }}
        uses: ./.github/actions/clean-disk

      - name: Setup ssh access to build runner VM
        # ssh access is enabled for builds in own forks
        if: ${{ github.repository != 'apache/pulsar' && github.event_name == 'pull_request' }}
        uses: ./.github/actions/ssh-access
        continue-on-error: true
        with:
          limit-access-to-actor: true

      - name: Cache local Maven repository
        uses: actions/cache@v4
        timeout-minutes: 5
        with:
          path: |
            ~/.m2/repository/*/*/*
            !~/.m2/repository/org/apache/pulsar
          key: ${{ runner.os }}-m2-dependencies-core-modules-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-m2-dependencies-core-modules-

      - name: Set up JDK ${{ env.CI_JDK_MAJOR_VERSION }}
        uses: actions/setup-java@v4
        with:
          distribution: ${{ env.JDK_DISTRIBUTION }}
          java-version: ${{ env.CI_JDK_MAJOR_VERSION }}

      - name: Build core-modules
        run: |
          mvn -B -T 1C -ntp -Pcore-modules,-main clean install -DskipTests -Dlicense.skip=true -Drat.skip=true

      - name: Run unit test group BROKER_FLAKY
        run: |
          CHANGED_TESTS="${{ needs.preconditions.outputs.tests_files }}" ./build/run_unit_group.sh BROKER_FLAKY

      - name: print JVM thread dumps when cancelled
        if: cancelled()
        run: $GITHUB_WORKSPACE/build/pulsar_ci_tool.sh print_thread_dumps

      - name: Aggregates all test reports to ./test-reports and ./surefire-reports directories
        if: ${{ always() }}
        uses: ./.github/actions/copy-test-reports

      - name: Publish Test Report
        uses: apache/pulsar-test-infra/action-junit-report@master
        if: ${{ always() }}
        with:
          report_paths: 'test-reports/TEST-*.xml'
          annotate_only: 'true'

      - name: Report detected thread leaks
        if: ${{ always() }}
        run: |
          if [ -d "$THREAD_LEAK_DETECTOR_DIR" ]; then
            cd "$THREAD_LEAK_DETECTOR_DIR"
            cat threadleak*.txt | awk '/^Summary:/ {print "::warning::" $0 "\n"; next} {print}'  
          fi

      - name: Create Jacoco reports
        if: ${{ needs.preconditions.outputs.collect_coverage == 'true' }}
        continue-on-error: true
        run: |
          $GITHUB_WORKSPACE/build/pulsar_ci_tool.sh create_test_coverage_report 
          cd $GITHUB_WORKSPACE/target
          zip -qr jacoco_test_coverage_report_flaky.zip jacoco_test_coverage_report || true

      - name: Upload Jacoco report files to build artifacts
        if: ${{ needs.preconditions.outputs.collect_coverage == 'true' }}
        uses: actions/upload-artifact@v4
        with:
          name: Jacoco-coverage-report-flaky
          path: target/jacoco_test_coverage_report_flaky.zip
          retention-days: 3
          if-no-files-found: ignore

      - name: Upload to Codecov
        if: ${{ needs.preconditions.outputs.collect_coverage == 'true' }}
        uses: ./.github/actions/upload-coverage
        continue-on-error: true
        with:
          flags: unittests

      - name: Upload Surefire reports
        uses: actions/upload-artifact@v4
        if: ${{ !success() || env.TRACE_TEST_RESOURCE_CLEANUP != 'off' }}
        with:
          name: Unit-BROKER_FLAKY-surefire-reports
          path: surefire-reports
          retention-days: 7
          if-no-files-found: ignore

      - name: Upload possible heap dump, core dump or crash files
        uses: actions/upload-artifact@v4
        if: ${{ always() }}
        with:
          name: Unit-BROKER_FLAKY-dumps
          path: |
            /tmp/*.hprof
            **/hs_err_*.log
            **/core.*
            ${{ env.TRACE_TEST_RESOURCE_CLEANUP_DIR }}/*
            ${{ env.THREAD_LEAK_DETECTOR_DIR }}/*
          retention-days: 7
          if-no-files-found: ignore