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fix: async metric recording

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This commit is contained in:
Kensei Nakada 2024-07-21 15:58:56 +09:00
parent 7ef3cf5d07
commit 2a51bd81fa
3 changed files with 16 additions and 6 deletions
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2
pkg/scheduler/internal/queue/scheduling_queue.go
View File

@ -510,7 +510,7 @@ func (p *PriorityQueue) isPodWorthRequeuing(logger klog.Logger, pInfo *framework
}
hint = framework.Queue
}
metrics.QueueingHintExecutionDuration.WithLabelValues(hintfn.PluginName, event.Label, queueingHintToLabel(hint, err)).Observe(metrics.SinceInSeconds(start))
p.metricsRecorder.ObserveQueueingHintDurationAsync(hintfn.PluginName, event.Label, queueingHintToLabel(hint, err), metrics.SinceInSeconds(start))
if hint == framework.QueueSkip {
continue

14
pkg/scheduler/metrics/metric_recorder.go
View File

@ -119,9 +119,19 @@ func NewMetricsAsyncRecorder(bufferSize int, interval time.Duration, stopCh <-ch
// ObservePluginDurationAsync observes the plugin_execution_duration_seconds metric.
// The metric will be flushed to Prometheus asynchronously.
func (r *MetricAsyncRecorder) ObservePluginDurationAsync(extensionPoint, pluginName, status string, value float64) {
r.observeMetricAsync(PluginExecutionDuration, value, pluginName, extensionPoint, status)
}
// ObserveQueueingHintDurationAsync observes the queueing_hint_execution_duration_seconds metric.
// The metric will be flushed to Prometheus asynchronously.
func (r *MetricAsyncRecorder) ObserveQueueingHintDurationAsync(pluginName, event, hint string, value float64) {
r.observeMetricAsync(queueingHintExecutionDuration, value, pluginName, event, hint)
}
func (r *MetricAsyncRecorder) observeMetricAsync(m *metrics.HistogramVec, value float64, labelsValues ...string) {
newMetric := &metric{
metric: PluginExecutionDuration,
labelValues: []string{pluginName, extensionPoint, status},
metric: m,
labelValues: labelsValues,
value: value,
}
select {

6
pkg/scheduler/metrics/metrics.go
View File

@ -207,11 +207,11 @@ var (
[]string{"plugin", "extension_point", "status"})
// This is only available when the QHint feature gate is enabled.
QueueingHintExecutionDuration = metrics.NewHistogramVec(
queueingHintExecutionDuration = metrics.NewHistogramVec(
&metrics.HistogramOpts{
Subsystem: SchedulerSubsystem,
Name: "queueing_hint_execution_duration_seconds",
Help: "Duration for running a queueing hint from a plugin.",
Help: "Duration for running a queueing hint function of a plugin.",
// Start with 0.01ms with the last bucket being [~22ms, Inf). We use a small factor (1.5)
// so that we have better granularity since plugin latency is very sensitive.
Buckets: metrics.ExponentialBuckets(0.00001, 1.5, 20),
@ -291,7 +291,7 @@ func Register() {
registerMetrics.Do(func() {
RegisterMetrics(metricsList...)
if utilfeature.DefaultFeatureGate.Enabled(features.SchedulerQueueingHints) {
RegisterMetrics(QueueingHintExecutionDuration)
RegisterMetrics(queueingHintExecutionDuration)
}
volumebindingmetrics.RegisterVolumeSchedulingMetrics()
})