apiserver – k8s.io/apiserver/pkg/storage/cacher/metrics Index | Files

package metrics

import "k8s.io/apiserver/pkg/storage/cacher/metrics"

Index

Variables 

var (
	InitCounter = compbasemetrics.NewCounterVec(
		&compbasemetrics.CounterOpts{
			Namespace:      namespace,
			Name:           "init_events_total",
			Help:           "Counter of init events processed in watch cache broken by resource type.",
			StabilityLevel: compbasemetrics.ALPHA,
		},
		[]string{"resource"},
	)

	EventsReceivedCounter = compbasemetrics.NewCounterVec(
		&compbasemetrics.CounterOpts{
			Namespace:      namespace,
			Subsystem:      subsystem,
			Name:           "events_received_total",
			Help:           "Counter of events received in watch cache broken by resource type.",
			StabilityLevel: compbasemetrics.ALPHA,
		},
		[]string{"resource"},
	)

	EventsCounter = compbasemetrics.NewCounterVec(
		&compbasemetrics.CounterOpts{
			Namespace:      namespace,
			Subsystem:      subsystem,
			Name:           "events_dispatched_total",
			Help:           "Counter of events dispatched in watch cache broken by resource type.",
			StabilityLevel: compbasemetrics.ALPHA,
		},
		[]string{"resource"},
	)

	TerminatedWatchersCounter = compbasemetrics.NewCounterVec(
		&compbasemetrics.CounterOpts{
			Namespace:      namespace,
			Name:           "terminated_watchers_total",
			Help:           "Counter of watchers closed due to unresponsiveness broken by resource type.",
			StabilityLevel: compbasemetrics.ALPHA,
		},
		[]string{"resource"},
	)

	WatchCacheCapacity = compbasemetrics.NewGaugeVec(
		&compbasemetrics.GaugeOpts{
			Subsystem:      subsystem,
			Name:           "capacity",
			Help:           "Total capacity of watch cache broken by resource type.",
			StabilityLevel: compbasemetrics.ALPHA,
		},
		[]string{"resource"},
	)

	WatchCacheInitializations = compbasemetrics.NewCounterVec(
		&compbasemetrics.CounterOpts{
			Namespace:      namespace,
			Subsystem:      subsystem,
			Name:           "initializations_total",
			Help:           "Counter of watch cache initializations broken by resource type.",
			StabilityLevel: compbasemetrics.ALPHA,
		},
		[]string{"resource"},
	)

	WatchCacheReadWait = compbasemetrics.NewHistogramVec(
		&compbasemetrics.HistogramOpts{
			Namespace:      namespace,
			Subsystem:      subsystem,
			Name:           "read_wait_seconds",
			Help:           "Histogram of time spent waiting for a watch cache to become fresh.",
			StabilityLevel: compbasemetrics.ALPHA,
			Buckets:        []float64{0.005, 0.025, 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, 1.0, 1.25, 1.5, 2, 3},
		}, []string{"resource"})
)

* By default, all the following metrics are defined as falling under * ALPHA stability level https://github.com/kubernetes/enhancements/blob/master/keps/sig-instrumentation/1209-metrics-stability/kubernetes-control-plane-metrics-stability.md#stability-classes) * * Promoting the stability level of the metric is a responsibility of the component owner, since it * involves explicitly acknowledging support for the metric across multiple releases, in accordance with * the metric stability policy.

Functions

func RecordListCacheMetrics 

func RecordListCacheMetrics(resourcePrefix, indexName string, numFetched, numReturned int)

RecordListCacheMetrics notes various metrics of the cost to serve a LIST request

func RecordsWatchCacheCapacityChange 

func RecordsWatchCacheCapacityChange(objType string, old, new int)

RecordsWatchCacheCapacityChange record watchCache capacity resize(increase or decrease) operations.

func Register 

func Register()

Register all metrics.

Source Files

metrics.go

Version
v0.30.1
Published
May 15, 2024
Platform
js/wasm
Imports
3 packages
Last checked
2 seconds ago –

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