mirror of https://github.com/kubernetes/kops.git
131 lines
4.5 KiB
Go
131 lines
4.5 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package metrics
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import (
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"github.com/prometheus/client_golang/prometheus"
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"k8s.io/client-go/util/workqueue"
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)
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// This file is copied and adapted from k8s.io/kubernetes/pkg/util/workqueue/prometheus
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// which registers metrics to the default prometheus Registry. We require very
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// similar functionality, but must register metrics to a different Registry.
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// Metrics subsystem and all keys used by the workqueue.
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const (
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WorkQueueSubsystem = "workqueue"
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DepthKey = "depth"
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AddsKey = "adds_total"
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QueueLatencyKey = "queue_duration_seconds"
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WorkDurationKey = "work_duration_seconds"
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UnfinishedWorkKey = "unfinished_work_seconds"
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LongestRunningProcessorKey = "longest_running_processor_seconds"
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RetriesKey = "retries_total"
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)
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var (
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depth = prometheus.NewGaugeVec(prometheus.GaugeOpts{
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Subsystem: WorkQueueSubsystem,
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Name: DepthKey,
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Help: "Current depth of workqueue",
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}, []string{"name"})
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adds = prometheus.NewCounterVec(prometheus.CounterOpts{
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Subsystem: WorkQueueSubsystem,
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Name: AddsKey,
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Help: "Total number of adds handled by workqueue",
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}, []string{"name"})
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latency = prometheus.NewHistogramVec(prometheus.HistogramOpts{
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Subsystem: WorkQueueSubsystem,
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Name: QueueLatencyKey,
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Help: "How long in seconds an item stays in workqueue before being requested",
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Buckets: prometheus.ExponentialBuckets(10e-9, 10, 10),
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}, []string{"name"})
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workDuration = prometheus.NewHistogramVec(prometheus.HistogramOpts{
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Subsystem: WorkQueueSubsystem,
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Name: WorkDurationKey,
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Help: "How long in seconds processing an item from workqueue takes.",
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Buckets: prometheus.ExponentialBuckets(10e-9, 10, 10),
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}, []string{"name"})
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unfinished = prometheus.NewGaugeVec(prometheus.GaugeOpts{
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Subsystem: WorkQueueSubsystem,
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Name: UnfinishedWorkKey,
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Help: "How many seconds of work has been done that " +
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"is in progress and hasn't been observed by work_duration. Large " +
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"values indicate stuck threads. One can deduce the number of stuck " +
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"threads by observing the rate at which this increases.",
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}, []string{"name"})
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longestRunningProcessor = prometheus.NewGaugeVec(prometheus.GaugeOpts{
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Subsystem: WorkQueueSubsystem,
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Name: LongestRunningProcessorKey,
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Help: "How many seconds has the longest running " +
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"processor for workqueue been running.",
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}, []string{"name"})
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retries = prometheus.NewCounterVec(prometheus.CounterOpts{
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Subsystem: WorkQueueSubsystem,
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Name: RetriesKey,
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Help: "Total number of retries handled by workqueue",
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}, []string{"name"})
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)
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func init() {
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Registry.MustRegister(depth)
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Registry.MustRegister(adds)
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Registry.MustRegister(latency)
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Registry.MustRegister(workDuration)
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Registry.MustRegister(unfinished)
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Registry.MustRegister(longestRunningProcessor)
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Registry.MustRegister(retries)
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workqueue.SetProvider(workqueueMetricsProvider{})
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}
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type workqueueMetricsProvider struct{}
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func (workqueueMetricsProvider) NewDepthMetric(name string) workqueue.GaugeMetric {
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return depth.WithLabelValues(name)
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}
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func (workqueueMetricsProvider) NewAddsMetric(name string) workqueue.CounterMetric {
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return adds.WithLabelValues(name)
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}
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func (workqueueMetricsProvider) NewLatencyMetric(name string) workqueue.HistogramMetric {
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return latency.WithLabelValues(name)
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}
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func (workqueueMetricsProvider) NewWorkDurationMetric(name string) workqueue.HistogramMetric {
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return workDuration.WithLabelValues(name)
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}
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func (workqueueMetricsProvider) NewUnfinishedWorkSecondsMetric(name string) workqueue.SettableGaugeMetric {
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return unfinished.WithLabelValues(name)
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}
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func (workqueueMetricsProvider) NewLongestRunningProcessorSecondsMetric(name string) workqueue.SettableGaugeMetric {
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return longestRunningProcessor.WithLabelValues(name)
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}
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func (workqueueMetricsProvider) NewRetriesMetric(name string) workqueue.CounterMetric {
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return retries.WithLabelValues(name)
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}
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