metrics

Documentation

Index

• Constants
• Variables
• func RegisterVolumeSchedulingMetrics()

Constants

const VolumeSchedulerSubsystem = "scheduler_volume"

VolumeSchedulerSubsystem - subsystem name used by scheduler

Variables

var (
	// VolumeBindingRequestSchedulerBinderCache tracks the number of volume binder cache operations.
	VolumeBindingRequestSchedulerBinderCache = metrics.NewCounterVec(
		&metrics.CounterOpts{
			Subsystem:      VolumeSchedulerSubsystem,
			Name:           "binder_cache_requests_total",
			Help:           "Total number for request volume binding cache",
			StabilityLevel: metrics.ALPHA,
		},
		[]string{"operation"},
	)
	// VolumeSchedulingStageLatency tracks the latency of volume scheduling operations.
	VolumeSchedulingStageLatency = metrics.NewHistogramVec(
		&metrics.HistogramOpts{
			Subsystem:         VolumeSchedulerSubsystem,
			Name:              "scheduling_duration_seconds",
			Help:              "Volume scheduling stage latency (Deprecated since 1.19.0)",
			Buckets:           metrics.ExponentialBuckets(0.001, 2, 15),
			StabilityLevel:    metrics.ALPHA,
			DeprecatedVersion: "1.19.0",
		},
		[]string{"operation"},
	)
	// VolumeSchedulingStageFailed tracks the number of failed volume scheduling operations.
	VolumeSchedulingStageFailed = metrics.NewCounterVec(
		&metrics.CounterOpts{
			Subsystem:      VolumeSchedulerSubsystem,
			Name:           "scheduling_stage_error_total",
			Help:           "Volume scheduling stage error count",
			StabilityLevel: metrics.ALPHA,
		},
		[]string{"operation"},
	)
)

Functions

func RegisterVolumeSchedulingMetrics

func RegisterVolumeSchedulingMetrics()

RegisterVolumeSchedulingMetrics is used for scheduler, because the volume binding cache is a library used by scheduler process.