metrics

Documentation

Index

• Constants
• Variables
• func Register()
• func Reset()
• func SinceInMicroseconds(start time.Time) float64
• func SinceInSeconds(start time.Time) float64

Constants

const (
	// SchedulerSubsystem - subsystem name used by scheduler
	SchedulerSubsystem = "scheduler"
	// SchedulingLatencyName - scheduler latency metric name
	SchedulingLatencyName = "scheduling_latency_seconds"

	// OperationLabel - operation label name
	OperationLabel = "operation"

	// PredicateEvaluation - predicate evaluation operation label value
	PredicateEvaluation = "predicate_evaluation"
	// PriorityEvaluation - priority evaluation operation label value
	PriorityEvaluation = "priority_evaluation"
	// PreemptionEvaluation - preemption evaluation operation label value (occurs in case of scheduling fitError).
	PreemptionEvaluation = "preemption_evaluation"
	// Binding - binding operation label value
	Binding = "binding"
)

Variables

var (

	// PodScheduleSuccesses counts how many pods were scheduled.
	PodScheduleSuccesses = scheduleAttempts.With(prometheus.Labels{"result": "scheduled"})
	// PodScheduleFailures counts how many pods could not be scheduled.
	PodScheduleFailures = scheduleAttempts.With(prometheus.Labels{"result": "unschedulable"})
	// PodScheduleErrors counts how many pods could not be scheduled due to a scheduler error.
	PodScheduleErrors = scheduleAttempts.With(prometheus.Labels{"result": "error"})
	SchedulingLatency = prometheus.NewSummaryVec(
		prometheus.SummaryOpts{
			Subsystem: SchedulerSubsystem,
			Name:      SchedulingLatencyName,
			Help:      "Scheduling latency in seconds split by sub-parts of the scheduling operation",

			MaxAge: 5 * time.Hour,
		},
		[]string{OperationLabel},
	)
	E2eSchedulingLatency = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "e2e_scheduling_latency_seconds",
			Help:      "E2e scheduling latency in seconds (scheduling algorithm + binding)",
			Buckets:   prometheus.ExponentialBuckets(0.001, 2, 15),
		},
	)
	DeprecatedE2eSchedulingLatency = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "e2e_scheduling_latency_microseconds",
			Help:      "(Deprecated) E2e scheduling latency in microseconds (scheduling algorithm + binding)",
			Buckets:   prometheus.ExponentialBuckets(1000, 2, 15),
		},
	)
	SchedulingAlgorithmLatency = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "scheduling_algorithm_latency_seconds",
			Help:      "Scheduling algorithm latency in seconds",
			Buckets:   prometheus.ExponentialBuckets(0.001, 2, 15),
		},
	)
	DeprecatedSchedulingAlgorithmLatency = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "scheduling_algorithm_latency_microseconds",
			Help:      "(Deprecated) Scheduling algorithm latency in microseconds",
			Buckets:   prometheus.ExponentialBuckets(1000, 2, 15),
		},
	)
	SchedulingAlgorithmPredicateEvaluationDuration = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "scheduling_algorithm_predicate_evaluation_seconds",
			Help:      "Scheduling algorithm predicate evaluation duration in seconds",
			Buckets:   prometheus.ExponentialBuckets(0.001, 2, 15),
		},
	)
	DeprecatedSchedulingAlgorithmPredicateEvaluationDuration = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "scheduling_algorithm_predicate_evaluation",
			Help:      "(Deprecated) Scheduling algorithm predicate evaluation duration in microseconds",
			Buckets:   prometheus.ExponentialBuckets(1000, 2, 15),
		},
	)
	SchedulingAlgorithmPriorityEvaluationDuration = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "scheduling_algorithm_priority_evaluation_seconds",
			Help:      "Scheduling algorithm priority evaluation duration in seconds",
			Buckets:   prometheus.ExponentialBuckets(0.001, 2, 15),
		},
	)
	DeprecatedSchedulingAlgorithmPriorityEvaluationDuration = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "scheduling_algorithm_priority_evaluation",
			Help:      "(Deprecated) Scheduling algorithm priority evaluation duration in microseconds",
			Buckets:   prometheus.ExponentialBuckets(1000, 2, 15),
		},
	)
	SchedulingAlgorithmPremptionEvaluationDuration = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "scheduling_algorithm_preemption_evaluation_seconds",
			Help:      "Scheduling algorithm preemption evaluation duration in seconds",
			Buckets:   prometheus.ExponentialBuckets(0.001, 2, 15),
		},
	)
	DeprecatedSchedulingAlgorithmPremptionEvaluationDuration = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "scheduling_algorithm_preemption_evaluation",
			Help:      "(Deprecated) Scheduling algorithm preemption evaluation duration in microseconds",
			Buckets:   prometheus.ExponentialBuckets(1000, 2, 15),
		},
	)
	BindingLatency = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "binding_latency_seconds",
			Help:      "Binding latency in seconds",
			Buckets:   prometheus.ExponentialBuckets(0.001, 2, 15),
		},
	)
	DeprecatedBindingLatency = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "binding_latency_microseconds",
			Help:      "(Deprecated) Binding latency in microseconds",
			Buckets:   prometheus.ExponentialBuckets(1000, 2, 15),
		},
	)
	PreemptionVictims = prometheus.NewGauge(
		prometheus.GaugeOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "pod_preemption_victims",
			Help:      "Number of selected preemption victims",
		})
	PreemptionAttempts = prometheus.NewCounter(
		prometheus.CounterOpts{
			Subsystem: SchedulerSubsystem,
			Name:      "total_preemption_attempts",
			Help:      "Total preemption attempts in the cluster till now",
		})
)

All the histogram based metrics have 1ms as size for the smallest bucket.

Functions

func Register

func Register()

Register all metrics.

func Reset

func Reset()

Reset resets metrics

func SinceInMicroseconds

func SinceInMicroseconds(start time.Time) float64

SinceInMicroseconds gets the time since the specified start in microseconds.

func SinceInSeconds

func SinceInSeconds(start time.Time) float64

SinceInSeconds gets the time since the specified start in seconds.