kubernetes: k8s.io/kubernetes/pkg/scheduler/metrics Index | Files

package metrics

import "k8s.io/kubernetes/pkg/scheduler/metrics"

Index

Package Files

metric_recorder.go metrics.go

Constants

const (
    // SchedulerSubsystem - subsystem name used by scheduler
    SchedulerSubsystem = "scheduler"
    // SchedulingLatencyName - scheduler latency metric name
    SchedulingLatencyName = "scheduling_duration_seconds"
    // DeprecatedSchedulingLatencyName - scheduler latency metric name which is deprecated
    DeprecatedSchedulingLatencyName = "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 = metrics.NewSummaryVec(
        &metrics.SummaryOpts{
            Subsystem: SchedulerSubsystem,
            Name:      SchedulingLatencyName,
            Help:      "Scheduling latency in seconds split by sub-parts of the scheduling operation",

            MaxAge:         5 * time.Hour,
            StabilityLevel: metrics.ALPHA,
        },
        []string{OperationLabel},
    )
    DeprecatedSchedulingLatency = metrics.NewSummaryVec(
        &metrics.SummaryOpts{
            Subsystem: SchedulerSubsystem,
            Name:      DeprecatedSchedulingLatencyName,
            Help:      "(Deprecated) Scheduling latency in seconds split by sub-parts of the scheduling operation",

            MaxAge:         5 * time.Hour,
            StabilityLevel: metrics.ALPHA,
        },
        []string{OperationLabel},
    )
    E2eSchedulingLatency = metrics.NewHistogram(
        &metrics.HistogramOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "e2e_scheduling_duration_seconds",
            Help:           "E2e scheduling latency in seconds (scheduling algorithm + binding)",
            Buckets:        metrics.ExponentialBuckets(0.001, 2, 15),
            StabilityLevel: metrics.ALPHA,
        },
    )
    DeprecatedE2eSchedulingLatency = metrics.NewHistogram(
        &metrics.HistogramOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "e2e_scheduling_latency_microseconds",
            Help:           "(Deprecated) E2e scheduling latency in microseconds (scheduling algorithm + binding)",
            Buckets:        metrics.ExponentialBuckets(1000, 2, 15),
            StabilityLevel: metrics.ALPHA,
        },
    )
    SchedulingAlgorithmLatency = metrics.NewHistogram(
        &metrics.HistogramOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "scheduling_algorithm_duration_seconds",
            Help:           "Scheduling algorithm latency in seconds",
            Buckets:        metrics.ExponentialBuckets(0.001, 2, 15),
            StabilityLevel: metrics.ALPHA,
        },
    )
    DeprecatedSchedulingAlgorithmLatency = metrics.NewHistogram(
        &metrics.HistogramOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "scheduling_algorithm_latency_microseconds",
            Help:           "(Deprecated) Scheduling algorithm latency in microseconds",
            Buckets:        metrics.ExponentialBuckets(1000, 2, 15),
            StabilityLevel: metrics.ALPHA,
        },
    )
    SchedulingAlgorithmPredicateEvaluationDuration = metrics.NewHistogram(
        &metrics.HistogramOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "scheduling_algorithm_predicate_evaluation_seconds",
            Help:           "Scheduling algorithm predicate evaluation duration in seconds",
            Buckets:        metrics.ExponentialBuckets(0.001, 2, 15),
            StabilityLevel: metrics.ALPHA,
        },
    )
    DeprecatedSchedulingAlgorithmPredicateEvaluationDuration = metrics.NewHistogram(
        &metrics.HistogramOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "scheduling_algorithm_predicate_evaluation",
            Help:           "(Deprecated) Scheduling algorithm predicate evaluation duration in microseconds",
            Buckets:        metrics.ExponentialBuckets(1000, 2, 15),
            StabilityLevel: metrics.ALPHA,
        },
    )
    SchedulingAlgorithmPriorityEvaluationDuration = metrics.NewHistogram(
        &metrics.HistogramOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "scheduling_algorithm_priority_evaluation_seconds",
            Help:           "Scheduling algorithm priority evaluation duration in seconds",
            Buckets:        metrics.ExponentialBuckets(0.001, 2, 15),
            StabilityLevel: metrics.ALPHA,
        },
    )
    DeprecatedSchedulingAlgorithmPriorityEvaluationDuration = metrics.NewHistogram(
        &metrics.HistogramOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "scheduling_algorithm_priority_evaluation",
            Help:           "(Deprecated) Scheduling algorithm priority evaluation duration in microseconds",
            Buckets:        metrics.ExponentialBuckets(1000, 2, 15),
            StabilityLevel: metrics.ALPHA,
        },
    )
    SchedulingAlgorithmPremptionEvaluationDuration = metrics.NewHistogram(
        &metrics.HistogramOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "scheduling_algorithm_preemption_evaluation_seconds",
            Help:           "Scheduling algorithm preemption evaluation duration in seconds",
            Buckets:        metrics.ExponentialBuckets(0.001, 2, 15),
            StabilityLevel: metrics.ALPHA,
        },
    )
    DeprecatedSchedulingAlgorithmPremptionEvaluationDuration = metrics.NewHistogram(
        &metrics.HistogramOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "scheduling_algorithm_preemption_evaluation",
            Help:           "(Deprecated) Scheduling algorithm preemption evaluation duration in microseconds",
            Buckets:        metrics.ExponentialBuckets(1000, 2, 15),
            StabilityLevel: metrics.ALPHA,
        },
    )
    BindingLatency = metrics.NewHistogram(
        &metrics.HistogramOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "binding_duration_seconds",
            Help:           "Binding latency in seconds",
            Buckets:        metrics.ExponentialBuckets(0.001, 2, 15),
            StabilityLevel: metrics.ALPHA,
        },
    )
    DeprecatedBindingLatency = metrics.NewHistogram(
        &metrics.HistogramOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "binding_latency_microseconds",
            Help:           "(Deprecated) Binding latency in microseconds",
            Buckets:        metrics.ExponentialBuckets(1000, 2, 15),
            StabilityLevel: metrics.ALPHA,
        },
    )
    PreemptionVictims = metrics.NewGauge(
        &metrics.GaugeOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "pod_preemption_victims",
            Help:           "Number of selected preemption victims",
            StabilityLevel: metrics.ALPHA,
        })
    PreemptionAttempts = metrics.NewCounter(
        &metrics.CounterOpts{
            Subsystem:      SchedulerSubsystem,
            Name:           "total_preemption_attempts",
            Help:           "Total preemption attempts in the cluster till now",
            StabilityLevel: metrics.ALPHA,
        })
)

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

func ActivePods Uses

func ActivePods() metrics.GaugeMetric

ActivePods returns the pending pods metrics with the label active

func BackoffPods Uses

func BackoffPods() metrics.GaugeMetric

BackoffPods returns the pending pods metrics with the label backoff

func Register Uses

func Register()

Register all metrics.

func Reset Uses

func Reset()

Reset resets metrics

func SinceInMicroseconds Uses

func SinceInMicroseconds(start time.Time) float64

SinceInMicroseconds gets the time since the specified start in microseconds.

func SinceInSeconds Uses

func SinceInSeconds(start time.Time) float64

SinceInSeconds gets the time since the specified start in seconds.

func UnschedulablePods Uses

func UnschedulablePods() metrics.GaugeMetric

UnschedulablePods returns the pending pods metrics with the label unschedulable

type MetricRecorder Uses

type MetricRecorder interface {
    Inc()
    Dec()
    Clear()
}

MetricRecorder represents a metric recorder which takes action when the metric Inc(), Dec() and Clear()

type PendingPodsRecorder Uses

type PendingPodsRecorder struct {
    // contains filtered or unexported fields
}

PendingPodsRecorder is an implementation of MetricRecorder

func NewActivePodsRecorder Uses

func NewActivePodsRecorder() *PendingPodsRecorder

NewActivePodsRecorder returns ActivePods in a Prometheus metric fashion

func NewBackoffPodsRecorder Uses

func NewBackoffPodsRecorder() *PendingPodsRecorder

NewBackoffPodsRecorder returns BackoffPods in a Prometheus metric fashion

func NewUnschedulablePodsRecorder Uses

func NewUnschedulablePodsRecorder() *PendingPodsRecorder

NewUnschedulablePodsRecorder returns UnschedulablePods in a Prometheus metric fashion

func (*PendingPodsRecorder) Clear Uses

func (r *PendingPodsRecorder) Clear()

Clear set a metric counter to 0, in an atomic way

func (*PendingPodsRecorder) Dec Uses

func (r *PendingPodsRecorder) Dec()

Dec decreases a metric counter by 1, in an atomic way

func (*PendingPodsRecorder) Inc Uses

func (r *PendingPodsRecorder) Inc()

Inc increases a metric counter by 1, in an atomic way

Package metrics imports 6 packages (graph) and is imported by 109 packages. Updated 2019-09-17. Refresh now. Tools for package owners.