62 lines
2.4 KiB
Go
62 lines
2.4 KiB
Go
package metrics
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import (
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"time"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promauto" // auto-registry collectors in default registry
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utilmetrics "github.com/karmada-io/karmada/pkg/util/metrics"
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)
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// SchedulerEstimatorSubsystem - subsystem name used by scheduler estimator
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const SchedulerEstimatorSubsystem = "karmada_scheduler_estimator"
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const (
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// EstimatingTypeMaxAvailableReplicas - label of estimating type
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EstimatingTypeMaxAvailableReplicas = "MaxAvailableReplicas"
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// EstimatingTypeGetUnschedulableReplicas - label of estimating type
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EstimatingTypeGetUnschedulableReplicas = "GetUnschedulableReplicas"
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)
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const (
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// EstimatingStepListNodesByNodeClaim - label of estimating step
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EstimatingStepListNodesByNodeClaim = "ListNodesByNodeClaim"
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// EstimatingStepMaxAvailableReplicas - label of estimating step
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EstimatingStepMaxAvailableReplicas = "MaxAvailableReplicas"
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// EstimatingStepGetObjectFromCache - label of estimating step
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EstimatingStepGetObjectFromCache = "GetObjectFromCache"
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// EstimatingStepGetUnschedulablePodsOfWorkload - label of estimating step
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EstimatingStepGetUnschedulablePodsOfWorkload = "GetWorkloadUnschedulablePods"
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// EstimatingStepTotal - label of estimating step, total step
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EstimatingStepTotal = "Total"
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)
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var (
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requestCount = promauto.NewCounterVec(
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prometheus.CounterOpts{
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Subsystem: SchedulerEstimatorSubsystem,
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Name: "estimating_request_total",
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Help: "Number of scheduler estimator requests",
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}, []string{"result", "type"})
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estimatingAlgorithmLatency = promauto.NewHistogramVec(
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prometheus.HistogramOpts{
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Subsystem: SchedulerEstimatorSubsystem,
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Name: "estimating_algorithm_duration_seconds",
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Help: "Estimating algorithm latency in seconds for each step",
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Buckets: prometheus.ExponentialBuckets(0.001, 2, 10),
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}, []string{"result", "type", "step"})
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)
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// CountRequests total number of scheduler estimator requests
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func CountRequests(err error, estimatingType string) {
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requestCount.WithLabelValues(utilmetrics.GetResultByError(err), estimatingType).Inc()
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}
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// UpdateEstimatingAlgorithmLatency updates latency for every step
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func UpdateEstimatingAlgorithmLatency(err error, estimatingType, estimatingStep string, startTime time.Time) {
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estimatingAlgorithmLatency.WithLabelValues(utilmetrics.GetResultByError(err), estimatingType, estimatingStep).
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Observe(utilmetrics.DurationInSeconds(startTime))
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}
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