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Merge pull request #129909 from YamasouA/refactor/scheduler_perf
Refactor scheduler_perf runWorkload
This commit is contained in:
Kubernetes Prow Robot
GitHub
commit
672f57e2a4
@ -1194,7 +1194,10 @@ func RunBenchmarkPerfScheduling(b *testing.B, configFile string, topicName strin
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b.Fatalf("workload %s is not valid: %v", w.Name, err)
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}
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results := runWorkload(tCtx, tc, w, informerFactory)
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results, err := runWorkload(tCtx, tc, w, informerFactory)
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if err != nil {
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tCtx.Fatalf("Error running workload %s: %s", w.Name, err)
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}
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dataItems.DataItems = append(dataItems.DataItems, results...)
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if len(results) > 0 {
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@ -1292,7 +1295,10 @@ func RunIntegrationPerfScheduling(t *testing.T, configFile string) {
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t.Fatalf("workload %s is not valid: %v", w.Name, err)
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}
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runWorkload(tCtx, tc, w, informerFactory)
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_, err = runWorkload(tCtx, tc, w, informerFactory)
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if err != nil {
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tCtx.Fatalf("Error running workload %s: %s", w.Name, err)
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}
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if featureGates[features.SchedulerQueueingHints] {
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// In any case, we should make sure InFlightEvents is empty after running the scenario.
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@ -1410,7 +1416,7 @@ func checkEmptyInFlightEvents() error {
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return nil
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}
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func startCollectingMetrics(tCtx ktesting.TContext, collectorWG *sync.WaitGroup, podInformer coreinformers.PodInformer, mcc *metricsCollectorConfig, throughputErrorMargin float64, opIndex int, name string, namespaces []string, labelSelector map[string]string) (ktesting.TContext, []testDataCollector) {
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func startCollectingMetrics(tCtx ktesting.TContext, collectorWG *sync.WaitGroup, podInformer coreinformers.PodInformer, mcc *metricsCollectorConfig, throughputErrorMargin float64, opIndex int, name string, namespaces []string, labelSelector map[string]string) (ktesting.TContext, []testDataCollector, error) {
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collectorCtx := ktesting.WithCancel(tCtx)
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workloadName := tCtx.Name()
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// The first part is the same for each workload, therefore we can strip it.
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@ -1421,20 +1427,23 @@ func startCollectingMetrics(tCtx ktesting.TContext, collectorWG *sync.WaitGroup,
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collector := collector
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err := collector.init()
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if err != nil {
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tCtx.Fatalf("op %d: Failed to initialize data collector: %v", opIndex, err)
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return nil, nil, fmt.Errorf("failed to initialize data collector: %w", err)
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}
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tCtx.TB().Cleanup(func() {
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collectorCtx.Cancel("cleaning up")
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})
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collectorWG.Add(1)
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go func() {
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defer collectorWG.Done()
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collector.run(collectorCtx)
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}()
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}
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return collectorCtx, collectors
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return collectorCtx, collectors, nil
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}
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func stopCollectingMetrics(tCtx ktesting.TContext, collectorCtx ktesting.TContext, collectorWG *sync.WaitGroup, threshold float64, tms thresholdMetricSelector, opIndex int, collectors []testDataCollector) []DataItem {
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func stopCollectingMetrics(tCtx ktesting.TContext, collectorCtx ktesting.TContext, collectorWG *sync.WaitGroup, threshold float64, tms thresholdMetricSelector, opIndex int, collectors []testDataCollector) ([]DataItem, error) {
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if collectorCtx == nil {
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tCtx.Fatalf("op %d: Missing startCollectingMetrics operation before stopping", opIndex)
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return nil, fmt.Errorf("missing startCollectingMetrics operation before stopping")
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}
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collectorCtx.Cancel("collecting metrics, collector must stop first")
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collectorWG.Wait()
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@ -1447,10 +1456,25 @@ func stopCollectingMetrics(tCtx ktesting.TContext, collectorCtx ktesting.TContex
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tCtx.Errorf("op %d: %s", opIndex, err)
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}
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}
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return dataItems
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return dataItems, nil
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}
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func runWorkload(tCtx ktesting.TContext, tc *testCase, w *workload, informerFactory informers.SharedInformerFactory) []DataItem {
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type WorkloadExecutor struct {
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tCtx ktesting.TContext
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wg sync.WaitGroup
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collectorCtx ktesting.TContext
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collectorWG sync.WaitGroup
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collectors []testDataCollector
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dataItems []DataItem
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numPodsScheduledPerNamespace map[string]int
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podInformer coreinformers.PodInformer
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throughputErrorMargin float64
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testCase *testCase
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workload *workload
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nextNodeIndex int
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}
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func runWorkload(tCtx ktesting.TContext, tc *testCase, w *workload, informerFactory informers.SharedInformerFactory) ([]DataItem, error) {
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b, benchmarking := tCtx.TB().(*testing.B)
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if benchmarking {
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start := time.Now()
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@ -1481,343 +1505,408 @@ func runWorkload(tCtx ktesting.TContext, tc *testCase, w *workload, informerFact
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// Everything else started by this function gets stopped before it returns.
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tCtx = ktesting.WithCancel(tCtx)
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var wg sync.WaitGroup
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defer wg.Wait()
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defer tCtx.Cancel("workload is done")
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var dataItems []DataItem
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nextNodeIndex := 0
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// numPodsScheduledPerNamespace has all namespaces created in workload and the number of pods they (will) have.
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// All namespaces listed in numPodsScheduledPerNamespace will be cleaned up.
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numPodsScheduledPerNamespace := make(map[string]int)
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executor := WorkloadExecutor{
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tCtx: tCtx,
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numPodsScheduledPerNamespace: make(map[string]int),
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podInformer: podInformer,
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throughputErrorMargin: throughputErrorMargin,
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testCase: tc,
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workload: w,
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}
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var collectors []testDataCollector
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// This needs a separate context and wait group because
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// the metrics collecting needs to be sure that the goroutines
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// are stopped.
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var collectorCtx ktesting.TContext
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var collectorWG sync.WaitGroup
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defer collectorWG.Wait()
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tCtx.TB().Cleanup(func() {
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tCtx.Cancel("workload is done")
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executor.collectorWG.Wait()
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executor.wg.Wait()
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})
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for opIndex, op := range unrollWorkloadTemplate(tCtx, tc.WorkloadTemplate, w) {
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realOp, err := op.realOp.patchParams(w)
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if err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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return nil, fmt.Errorf("op %d: %w", opIndex, err)
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}
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select {
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case <-tCtx.Done():
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tCtx.Fatalf("op %d: %v", opIndex, context.Cause(tCtx))
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return nil, fmt.Errorf("op %d: %w", opIndex, context.Cause(tCtx))
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default:
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}
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switch concreteOp := realOp.(type) {
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case *createNodesOp:
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nodePreparer, err := getNodePreparer(fmt.Sprintf("node-%d-", opIndex), concreteOp, tCtx.Client())
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if err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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if err := nodePreparer.PrepareNodes(tCtx, nextNodeIndex); err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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nextNodeIndex += concreteOp.Count
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case *createNamespacesOp:
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nsPreparer, err := newNamespacePreparer(tCtx, concreteOp)
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if err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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if err := nsPreparer.prepare(tCtx); err != nil {
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err2 := nsPreparer.cleanup(tCtx)
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if err2 != nil {
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err = fmt.Errorf("prepare: %v; cleanup: %v", err, err2)
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}
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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for _, n := range nsPreparer.namespaces() {
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if _, ok := numPodsScheduledPerNamespace[n]; ok {
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// this namespace has been already created.
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continue
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}
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numPodsScheduledPerNamespace[n] = 0
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}
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case *createPodsOp:
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var namespace string
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// define Pod's namespace automatically, and create that namespace.
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namespace = fmt.Sprintf("namespace-%d", opIndex)
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if concreteOp.Namespace != nil {
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namespace = *concreteOp.Namespace
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}
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createNamespaceIfNotPresent(tCtx, namespace, &numPodsScheduledPerNamespace)
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if concreteOp.PodTemplatePath == nil {
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concreteOp.PodTemplatePath = tc.DefaultPodTemplatePath
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}
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if concreteOp.CollectMetrics {
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if collectorCtx != nil {
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tCtx.Fatalf("op %d: Metrics collection is overlapping. Probably second collector was started before stopping a previous one", opIndex)
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}
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collectorCtx, collectors = startCollectingMetrics(tCtx, &collectorWG, podInformer, tc.MetricsCollectorConfig, throughputErrorMargin, opIndex, namespace, []string{namespace}, nil)
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defer collectorCtx.Cancel("cleaning up")
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}
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if err := createPodsRapidly(tCtx, namespace, concreteOp); err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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switch {
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case concreteOp.SkipWaitToCompletion:
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// Only record those namespaces that may potentially require barriers
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// in the future.
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numPodsScheduledPerNamespace[namespace] += concreteOp.Count
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case concreteOp.SteadyState:
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if err := createPodsSteadily(tCtx, namespace, podInformer, concreteOp); err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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default:
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if err := waitUntilPodsScheduledInNamespace(tCtx, podInformer, nil, namespace, concreteOp.Count); err != nil {
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tCtx.Fatalf("op %d: error in waiting for pods to get scheduled: %v", opIndex, err)
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}
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}
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if concreteOp.CollectMetrics {
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// CollectMetrics and SkipWaitToCompletion can never be true at the
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// same time, so if we're here, it means that all pods have been
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// scheduled.
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items := stopCollectingMetrics(tCtx, collectorCtx, &collectorWG, w.Threshold, *w.ThresholdMetricSelector, opIndex, collectors)
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dataItems = append(dataItems, items...)
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collectorCtx = nil
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}
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case *deletePodsOp:
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labelSelector := labels.ValidatedSetSelector(concreteOp.LabelSelector)
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podsToDelete, err := podInformer.Lister().Pods(concreteOp.Namespace).List(labelSelector)
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if err != nil {
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tCtx.Fatalf("op %d: error in listing pods in the namespace %s: %v", opIndex, concreteOp.Namespace, err)
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}
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deletePods := func(opIndex int) {
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if concreteOp.DeletePodsPerSecond > 0 {
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ticker := time.NewTicker(time.Second / time.Duration(concreteOp.DeletePodsPerSecond))
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defer ticker.Stop()
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for i := 0; i < len(podsToDelete); i++ {
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select {
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case <-ticker.C:
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if err := tCtx.Client().CoreV1().Pods(concreteOp.Namespace).Delete(tCtx, podsToDelete[i].Name, metav1.DeleteOptions{}); err != nil {
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if errors.Is(err, context.Canceled) {
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return
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}
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tCtx.Errorf("op %d: unable to delete pod %v: %v", opIndex, podsToDelete[i].Name, err)
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}
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case <-tCtx.Done():
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return
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}
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}
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return
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}
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listOpts := metav1.ListOptions{
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LabelSelector: labelSelector.String(),
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}
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if err := tCtx.Client().CoreV1().Pods(concreteOp.Namespace).DeleteCollection(tCtx, metav1.DeleteOptions{}, listOpts); err != nil {
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if errors.Is(err, context.Canceled) {
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return
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}
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tCtx.Errorf("op %d: unable to delete pods in namespace %v: %v", opIndex, concreteOp.Namespace, err)
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}
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}
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if concreteOp.SkipWaitToCompletion {
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wg.Add(1)
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go func(opIndex int) {
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defer wg.Done()
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deletePods(opIndex)
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}(opIndex)
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} else {
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deletePods(opIndex)
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}
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case *churnOp:
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var namespace string
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if concreteOp.Namespace != nil {
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namespace = *concreteOp.Namespace
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} else {
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namespace = fmt.Sprintf("namespace-%d", opIndex)
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}
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restMapper := restmapper.NewDeferredDiscoveryRESTMapper(cacheddiscovery.NewMemCacheClient(tCtx.Client().Discovery()))
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// Ensure the namespace exists.
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nsObj := &v1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: namespace}}
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if _, err := tCtx.Client().CoreV1().Namespaces().Create(tCtx, nsObj, metav1.CreateOptions{}); err != nil && !apierrors.IsAlreadyExists(err) {
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tCtx.Fatalf("op %d: unable to create namespace %v: %v", opIndex, namespace, err)
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}
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var churnFns []func(name string) string
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for i, path := range concreteOp.TemplatePaths {
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unstructuredObj, gvk, err := getUnstructuredFromFile(path)
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if err != nil {
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tCtx.Fatalf("op %d: unable to parse the %v-th template path: %v", opIndex, i, err)
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}
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// Obtain GVR.
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mapping, err := restMapper.RESTMapping(gvk.GroupKind(), gvk.Version)
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if err != nil {
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tCtx.Fatalf("op %d: unable to find GVR for %v: %v", opIndex, gvk, err)
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}
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gvr := mapping.Resource
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// Distinguish cluster-scoped with namespaced API objects.
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var dynRes dynamic.ResourceInterface
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if mapping.Scope.Name() == meta.RESTScopeNameNamespace {
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dynRes = tCtx.Dynamic().Resource(gvr).Namespace(namespace)
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} else {
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dynRes = tCtx.Dynamic().Resource(gvr)
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}
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churnFns = append(churnFns, func(name string) string {
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if name != "" {
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if err := dynRes.Delete(tCtx, name, metav1.DeleteOptions{}); err != nil && !errors.Is(err, context.Canceled) {
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tCtx.Errorf("op %d: unable to delete %v: %v", opIndex, name, err)
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}
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return ""
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}
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live, err := dynRes.Create(tCtx, unstructuredObj, metav1.CreateOptions{})
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if err != nil {
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return ""
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}
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return live.GetName()
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})
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}
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var interval int64 = 500
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if concreteOp.IntervalMilliseconds != 0 {
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interval = concreteOp.IntervalMilliseconds
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}
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ticker := time.NewTicker(time.Duration(interval) * time.Millisecond)
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defer ticker.Stop()
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switch concreteOp.Mode {
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case Create:
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wg.Add(1)
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go func() {
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defer wg.Done()
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count, threshold := 0, concreteOp.Number
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if threshold == 0 {
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threshold = math.MaxInt32
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}
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for count < threshold {
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select {
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case <-ticker.C:
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for i := range churnFns {
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churnFns[i]("")
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}
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count++
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case <-tCtx.Done():
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return
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}
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}
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}()
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case Recreate:
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wg.Add(1)
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go func() {
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defer wg.Done()
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retVals := make([][]string, len(churnFns))
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// For each churn function, instantiate a slice of strings with length "concreteOp.Number".
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for i := range retVals {
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retVals[i] = make([]string, concreteOp.Number)
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}
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count := 0
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for {
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select {
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case <-ticker.C:
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for i := range churnFns {
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retVals[i][count%concreteOp.Number] = churnFns[i](retVals[i][count%concreteOp.Number])
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}
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count++
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case <-tCtx.Done():
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return
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}
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}
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}()
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}
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case *barrierOp:
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for _, namespace := range concreteOp.Namespaces {
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if _, ok := numPodsScheduledPerNamespace[namespace]; !ok {
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tCtx.Fatalf("op %d: unknown namespace %s", opIndex, namespace)
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}
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}
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switch concreteOp.StageRequirement {
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case Attempted:
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if err := waitUntilPodsAttempted(tCtx, podInformer, concreteOp.LabelSelector, concreteOp.Namespaces, numPodsScheduledPerNamespace); err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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case Scheduled:
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// Default should be treated like "Scheduled", so handling both in the same way.
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fallthrough
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default:
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if err := waitUntilPodsScheduled(tCtx, podInformer, concreteOp.LabelSelector, concreteOp.Namespaces, numPodsScheduledPerNamespace); err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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// At the end of the barrier, we can be sure that there are no pods
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// pending scheduling in the namespaces that we just blocked on.
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if len(concreteOp.Namespaces) == 0 {
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numPodsScheduledPerNamespace = make(map[string]int)
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} else {
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for _, namespace := range concreteOp.Namespaces {
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delete(numPodsScheduledPerNamespace, namespace)
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}
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}
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}
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case *sleepOp:
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select {
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case <-tCtx.Done():
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case <-time.After(concreteOp.Duration.Duration):
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}
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case *startCollectingMetricsOp:
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if collectorCtx != nil {
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tCtx.Fatalf("op %d: Metrics collection is overlapping. Probably second collector was started before stopping a previous one", opIndex)
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}
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collectorCtx, collectors = startCollectingMetrics(tCtx, &collectorWG, podInformer, tc.MetricsCollectorConfig, throughputErrorMargin, opIndex, concreteOp.Name, concreteOp.Namespaces, concreteOp.LabelSelector)
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defer collectorCtx.Cancel("cleaning up")
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case *stopCollectingMetricsOp:
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items := stopCollectingMetrics(tCtx, collectorCtx, &collectorWG, w.Threshold, *w.ThresholdMetricSelector, opIndex, collectors)
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dataItems = append(dataItems, items...)
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collectorCtx = nil
|
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default:
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runable, ok := concreteOp.(runnableOp)
|
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if !ok {
|
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tCtx.Fatalf("op %d: invalid op %v", opIndex, concreteOp)
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}
|
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for _, namespace := range runable.requiredNamespaces() {
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createNamespaceIfNotPresent(tCtx, namespace, &numPodsScheduledPerNamespace)
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}
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runable.run(tCtx)
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||||
err = executor.runOp(realOp, opIndex)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("op %d: %w", opIndex, err)
|
||||
}
|
||||
}
|
||||
|
||||
// check unused params and inform users
|
||||
unusedParams := w.unusedParams()
|
||||
if len(unusedParams) != 0 {
|
||||
tCtx.Fatalf("the parameters %v are defined on workload %s, but unused.\nPlease make sure there are no typos.", unusedParams, w.Name)
|
||||
return nil, fmt.Errorf("the parameters %v are defined on workload %s, but unused.\nPlease make sure there are no typos", unusedParams, w.Name)
|
||||
}
|
||||
|
||||
// Some tests have unschedulable pods. Do not add an implicit barrier at the
|
||||
// end as we do not want to wait for them.
|
||||
return dataItems
|
||||
return executor.dataItems, nil
|
||||
}
|
||||
|
||||
func createNamespaceIfNotPresent(tCtx ktesting.TContext, namespace string, podsPerNamespace *map[string]int) {
|
||||
func (e *WorkloadExecutor) runOp(op realOp, opIndex int) error {
|
||||
switch concreteOp := op.(type) {
|
||||
case *createNodesOp:
|
||||
return e.runCreateNodesOp(opIndex, concreteOp)
|
||||
case *createNamespacesOp:
|
||||
return e.runCreateNamespaceOp(opIndex, concreteOp)
|
||||
case *createPodsOp:
|
||||
return e.runCreatePodsOp(opIndex, concreteOp)
|
||||
case *deletePodsOp:
|
||||
return e.runDeletePodsOp(opIndex, concreteOp)
|
||||
case *churnOp:
|
||||
return e.runChurnOp(opIndex, concreteOp)
|
||||
case *barrierOp:
|
||||
return e.runBarrierOp(opIndex, concreteOp)
|
||||
case *sleepOp:
|
||||
return e.runSleepOp(concreteOp)
|
||||
case *startCollectingMetricsOp:
|
||||
return e.runStartCollectingMetricsOp(opIndex, concreteOp)
|
||||
case *stopCollectingMetricsOp:
|
||||
return e.runStopCollectingMetrics(opIndex)
|
||||
default:
|
||||
return e.runDefaultOp(opIndex, concreteOp)
|
||||
}
|
||||
}
|
||||
|
||||
func (e *WorkloadExecutor) runCreateNodesOp(opIndex int, op *createNodesOp) error {
|
||||
nodePreparer, err := getNodePreparer(fmt.Sprintf("node-%d-", opIndex), op, e.tCtx.Client())
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if err := nodePreparer.PrepareNodes(e.tCtx, e.nextNodeIndex); err != nil {
|
||||
return err
|
||||
}
|
||||
e.nextNodeIndex += op.Count
|
||||
return nil
|
||||
}
|
||||
|
||||
func (e *WorkloadExecutor) runCreateNamespaceOp(opIndex int, op *createNamespacesOp) error {
|
||||
nsPreparer, err := newNamespacePreparer(e.tCtx, op)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if err := nsPreparer.prepare(e.tCtx); err != nil {
|
||||
err2 := nsPreparer.cleanup(e.tCtx)
|
||||
if err2 != nil {
|
||||
err = fmt.Errorf("prepare: %w; cleanup: %w", err, err2)
|
||||
}
|
||||
return err
|
||||
}
|
||||
for _, n := range nsPreparer.namespaces() {
|
||||
if _, ok := e.numPodsScheduledPerNamespace[n]; ok {
|
||||
// this namespace has been already created.
|
||||
continue
|
||||
}
|
||||
e.numPodsScheduledPerNamespace[n] = 0
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (e *WorkloadExecutor) runBarrierOp(opIndex int, op *barrierOp) error {
|
||||
for _, namespace := range op.Namespaces {
|
||||
if _, ok := e.numPodsScheduledPerNamespace[namespace]; !ok {
|
||||
return fmt.Errorf("unknown namespace %s", namespace)
|
||||
}
|
||||
}
|
||||
switch op.StageRequirement {
|
||||
case Attempted:
|
||||
if err := waitUntilPodsAttempted(e.tCtx, e.podInformer, op.LabelSelector, op.Namespaces, e.numPodsScheduledPerNamespace); err != nil {
|
||||
return err
|
||||
}
|
||||
case Scheduled:
|
||||
// Default should be treated like "Scheduled", so handling both in the same way.
|
||||
fallthrough
|
||||
default:
|
||||
if err := waitUntilPodsScheduled(e.tCtx, e.podInformer, op.LabelSelector, op.Namespaces, e.numPodsScheduledPerNamespace); err != nil {
|
||||
return err
|
||||
}
|
||||
// At the end of the barrier, we can be sure that there are no pods
|
||||
// pending scheduling in the namespaces that we just blocked on.
|
||||
if len(op.Namespaces) == 0 {
|
||||
e.numPodsScheduledPerNamespace = make(map[string]int)
|
||||
} else {
|
||||
for _, namespace := range op.Namespaces {
|
||||
delete(e.numPodsScheduledPerNamespace, namespace)
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (e *WorkloadExecutor) runSleepOp(op *sleepOp) error {
|
||||
select {
|
||||
case <-e.tCtx.Done():
|
||||
case <-time.After(op.Duration.Duration):
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (e *WorkloadExecutor) runStopCollectingMetrics(opIndex int) error {
|
||||
items, err := stopCollectingMetrics(e.tCtx, e.collectorCtx, &e.collectorWG, e.workload.Threshold, *e.workload.ThresholdMetricSelector, opIndex, e.collectors)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
e.dataItems = append(e.dataItems, items...)
|
||||
e.collectorCtx = nil
|
||||
return nil
|
||||
}
|
||||
|
||||
func (e *WorkloadExecutor) runCreatePodsOp(opIndex int, op *createPodsOp) error {
|
||||
// define Pod's namespace automatically, and create that namespace.
|
||||
namespace := fmt.Sprintf("namespace-%d", opIndex)
|
||||
if op.Namespace != nil {
|
||||
namespace = *op.Namespace
|
||||
}
|
||||
err := createNamespaceIfNotPresent(e.tCtx, namespace, &e.numPodsScheduledPerNamespace)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if op.PodTemplatePath == nil {
|
||||
op.PodTemplatePath = e.testCase.DefaultPodTemplatePath
|
||||
}
|
||||
|
||||
if op.CollectMetrics {
|
||||
if e.collectorCtx != nil {
|
||||
return fmt.Errorf("metrics collection is overlapping. Probably second collector was started before stopping a previous one")
|
||||
}
|
||||
var err error
|
||||
e.collectorCtx, e.collectors, err = startCollectingMetrics(e.tCtx, &e.collectorWG, e.podInformer, e.testCase.MetricsCollectorConfig, e.throughputErrorMargin, opIndex, namespace, []string{namespace}, nil)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
if err := createPodsRapidly(e.tCtx, namespace, op); err != nil {
|
||||
return err
|
||||
}
|
||||
switch {
|
||||
case op.SkipWaitToCompletion:
|
||||
// Only record those namespaces that may potentially require barriers
|
||||
// in the future.
|
||||
e.numPodsScheduledPerNamespace[namespace] += op.Count
|
||||
case op.SteadyState:
|
||||
if err := createPodsSteadily(e.tCtx, namespace, e.podInformer, op); err != nil {
|
||||
return err
|
||||
}
|
||||
default:
|
||||
if err := waitUntilPodsScheduledInNamespace(e.tCtx, e.podInformer, nil, namespace, op.Count); err != nil {
|
||||
return fmt.Errorf("error in waiting for pods to get scheduled: %w", err)
|
||||
}
|
||||
}
|
||||
if op.CollectMetrics {
|
||||
// CollectMetrics and SkipWaitToCompletion can never be true at the
|
||||
// same time, so if we're here, it means that all pods have been
|
||||
// scheduled.
|
||||
items, err := stopCollectingMetrics(e.tCtx, e.collectorCtx, &e.collectorWG, e.workload.Threshold, *e.workload.ThresholdMetricSelector, opIndex, e.collectors)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
e.dataItems = append(e.dataItems, items...)
|
||||
e.collectorCtx = nil
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (e *WorkloadExecutor) runDeletePodsOp(opIndex int, op *deletePodsOp) error {
|
||||
labelSelector := labels.ValidatedSetSelector(op.LabelSelector)
|
||||
|
||||
podsToDelete, err := e.podInformer.Lister().Pods(op.Namespace).List(labelSelector)
|
||||
if err != nil {
|
||||
return fmt.Errorf("error in listing pods in the namespace %s: %w", op.Namespace, err)
|
||||
}
|
||||
|
||||
deletePods := func(opIndex int) {
|
||||
if op.DeletePodsPerSecond > 0 {
|
||||
ticker := time.NewTicker(time.Second / time.Duration(op.DeletePodsPerSecond))
|
||||
defer ticker.Stop()
|
||||
|
||||
for i := 0; i < len(podsToDelete); i++ {
|
||||
select {
|
||||
case <-ticker.C:
|
||||
if err := e.tCtx.Client().CoreV1().Pods(op.Namespace).Delete(e.tCtx, podsToDelete[i].Name, metav1.DeleteOptions{}); err != nil {
|
||||
if errors.Is(err, context.Canceled) {
|
||||
return
|
||||
}
|
||||
e.tCtx.Errorf("op %d: unable to delete pod %v: %v", opIndex, podsToDelete[i].Name, err)
|
||||
}
|
||||
case <-e.tCtx.Done():
|
||||
return
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
listOpts := metav1.ListOptions{
|
||||
LabelSelector: labelSelector.String(),
|
||||
}
|
||||
if err := e.tCtx.Client().CoreV1().Pods(op.Namespace).DeleteCollection(e.tCtx, metav1.DeleteOptions{}, listOpts); err != nil {
|
||||
if errors.Is(err, context.Canceled) {
|
||||
return
|
||||
}
|
||||
e.tCtx.Errorf("op %d: unable to delete pods in namespace %v: %v", opIndex, op.Namespace, err)
|
||||
}
|
||||
}
|
||||
|
||||
if op.SkipWaitToCompletion {
|
||||
e.wg.Add(1)
|
||||
go func(opIndex int) {
|
||||
defer e.wg.Done()
|
||||
deletePods(opIndex)
|
||||
}(opIndex)
|
||||
} else {
|
||||
deletePods(opIndex)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (e *WorkloadExecutor) runChurnOp(opIndex int, op *churnOp) error {
|
||||
var namespace string
|
||||
if op.Namespace != nil {
|
||||
namespace = *op.Namespace
|
||||
} else {
|
||||
namespace = fmt.Sprintf("namespace-%d", opIndex)
|
||||
}
|
||||
restMapper := restmapper.NewDeferredDiscoveryRESTMapper(cacheddiscovery.NewMemCacheClient(e.tCtx.Client().Discovery()))
|
||||
// Ensure the namespace exists.
|
||||
nsObj := &v1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: namespace}}
|
||||
if _, err := e.tCtx.Client().CoreV1().Namespaces().Create(e.tCtx, nsObj, metav1.CreateOptions{}); err != nil && !apierrors.IsAlreadyExists(err) {
|
||||
return fmt.Errorf("unable to create namespace %v: %w", namespace, err)
|
||||
}
|
||||
|
||||
var churnFns []func(name string) string
|
||||
|
||||
for i, path := range op.TemplatePaths {
|
||||
unstructuredObj, gvk, err := getUnstructuredFromFile(path)
|
||||
if err != nil {
|
||||
return fmt.Errorf("unable to parse the %v-th template path: %w", i, err)
|
||||
}
|
||||
// Obtain GVR.
|
||||
mapping, err := restMapper.RESTMapping(gvk.GroupKind(), gvk.Version)
|
||||
if err != nil {
|
||||
return fmt.Errorf("unable to find GVR for %v: %w", gvk, err)
|
||||
}
|
||||
gvr := mapping.Resource
|
||||
// Distinguish cluster-scoped with namespaced API objects.
|
||||
var dynRes dynamic.ResourceInterface
|
||||
if mapping.Scope.Name() == meta.RESTScopeNameNamespace {
|
||||
dynRes = e.tCtx.Dynamic().Resource(gvr).Namespace(namespace)
|
||||
} else {
|
||||
dynRes = e.tCtx.Dynamic().Resource(gvr)
|
||||
}
|
||||
|
||||
churnFns = append(churnFns, func(name string) string {
|
||||
if name != "" {
|
||||
if err := dynRes.Delete(e.tCtx, name, metav1.DeleteOptions{}); err != nil && !errors.Is(err, context.Canceled) {
|
||||
e.tCtx.Errorf("op %d: unable to delete %v: %v", opIndex, name, err)
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
live, err := dynRes.Create(e.tCtx, unstructuredObj, metav1.CreateOptions{})
|
||||
if err != nil {
|
||||
return ""
|
||||
}
|
||||
return live.GetName()
|
||||
})
|
||||
}
|
||||
|
||||
var interval int64 = 500
|
||||
if op.IntervalMilliseconds != 0 {
|
||||
interval = op.IntervalMilliseconds
|
||||
}
|
||||
ticker := time.NewTicker(time.Duration(interval) * time.Millisecond)
|
||||
|
||||
switch op.Mode {
|
||||
case Create:
|
||||
e.wg.Add(1)
|
||||
go func() {
|
||||
defer e.wg.Done()
|
||||
defer ticker.Stop()
|
||||
count, threshold := 0, op.Number
|
||||
if threshold == 0 {
|
||||
threshold = math.MaxInt32
|
||||
}
|
||||
for count < threshold {
|
||||
select {
|
||||
case <-ticker.C:
|
||||
for i := range churnFns {
|
||||
churnFns[i]("")
|
||||
}
|
||||
count++
|
||||
case <-e.tCtx.Done():
|
||||
return
|
||||
}
|
||||
}
|
||||
}()
|
||||
case Recreate:
|
||||
e.wg.Add(1)
|
||||
go func() {
|
||||
defer e.wg.Done()
|
||||
defer ticker.Stop()
|
||||
retVals := make([][]string, len(churnFns))
|
||||
// For each churn function, instantiate a slice of strings with length "op.Number".
|
||||
for i := range retVals {
|
||||
retVals[i] = make([]string, op.Number)
|
||||
}
|
||||
|
||||
count := 0
|
||||
for {
|
||||
select {
|
||||
case <-ticker.C:
|
||||
for i := range churnFns {
|
||||
retVals[i][count%op.Number] = churnFns[i](retVals[i][count%op.Number])
|
||||
}
|
||||
count++
|
||||
case <-e.tCtx.Done():
|
||||
return
|
||||
}
|
||||
}
|
||||
}()
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (e *WorkloadExecutor) runDefaultOp(opIndex int, op realOp) error {
|
||||
runable, ok := op.(runnableOp)
|
||||
if !ok {
|
||||
return fmt.Errorf("invalid op %v", op)
|
||||
}
|
||||
for _, namespace := range runable.requiredNamespaces() {
|
||||
err := createNamespaceIfNotPresent(e.tCtx, namespace, &e.numPodsScheduledPerNamespace)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
runable.run(e.tCtx)
|
||||
return nil
|
||||
}
|
||||
|
||||
func (e *WorkloadExecutor) runStartCollectingMetricsOp(opIndex int, op *startCollectingMetricsOp) error {
|
||||
if e.collectorCtx != nil {
|
||||
return fmt.Errorf("metrics collection is overlapping. Probably second collector was started before stopping a previous one")
|
||||
}
|
||||
var err error
|
||||
e.collectorCtx, e.collectors, err = startCollectingMetrics(e.tCtx, &e.collectorWG, e.podInformer, e.testCase.MetricsCollectorConfig, e.throughputErrorMargin, opIndex, op.Name, op.Namespaces, op.LabelSelector)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func createNamespaceIfNotPresent(tCtx ktesting.TContext, namespace string, podsPerNamespace *map[string]int) error {
|
||||
if _, ok := (*podsPerNamespace)[namespace]; !ok {
|
||||
// The namespace has not created yet.
|
||||
// So, create that and register it.
|
||||
_, err := tCtx.Client().CoreV1().Namespaces().Create(tCtx, &v1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: namespace}}, metav1.CreateOptions{})
|
||||
if err != nil {
|
||||
tCtx.Fatalf("failed to create namespace for Pod: %v", namespace)
|
||||
return fmt.Errorf("failed to create namespace for Pod: %v", namespace)
|
||||
}
|
||||
(*podsPerNamespace)[namespace] = 0
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type testDataCollector interface {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user