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c4f79d455f
As kubernetes 1.24.0 is released, updating kubernetes dependencies to 1.24.0 updates: #3086 Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
102 lines
3.5 KiB
Go
102 lines
3.5 KiB
Go
/*
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Copyright 2019 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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"sync"
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"time"
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"k8s.io/component-base/metrics"
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"k8s.io/component-base/metrics/legacyregistry"
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)
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const (
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kubeletSubsystem = "kubelet"
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)
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var (
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// HTTPRequests tracks the number of the http requests received since the server started.
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HTTPRequests = metrics.NewCounterVec(
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&metrics.CounterOpts{
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Subsystem: kubeletSubsystem,
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Name: "http_requests_total",
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Help: "Number of the http requests received since the server started",
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StabilityLevel: metrics.ALPHA,
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},
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// server_type aims to differentiate the readonly server and the readwrite server.
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// long_running marks whether the request is long-running or not.
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// Currently, long-running requests include exec/attach/portforward/debug.
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[]string{"method", "path", "server_type", "long_running"},
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)
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// HTTPRequestsDuration tracks the duration in seconds to serve http requests.
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HTTPRequestsDuration = metrics.NewHistogramVec(
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&metrics.HistogramOpts{
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Subsystem: kubeletSubsystem,
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Name: "http_requests_duration_seconds",
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Help: "Duration in seconds to serve http requests",
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// Use DefBuckets for now, will customize the buckets if necessary.
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Buckets: metrics.DefBuckets,
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StabilityLevel: metrics.ALPHA,
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},
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[]string{"method", "path", "server_type", "long_running"},
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)
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// HTTPInflightRequests tracks the number of the inflight http requests.
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HTTPInflightRequests = metrics.NewGaugeVec(
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&metrics.GaugeOpts{
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Subsystem: kubeletSubsystem,
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Name: "http_inflight_requests",
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Help: "Number of the inflight http requests",
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StabilityLevel: metrics.ALPHA,
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},
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[]string{"method", "path", "server_type", "long_running"},
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)
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// VolumeStatCalDuration tracks the duration in seconds to calculate volume stats.
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// this metric is mainly for comparison between fsquota monitoring and `du` for disk usage.
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VolumeStatCalDuration = metrics.NewHistogramVec(
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&metrics.HistogramOpts{
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Subsystem: kubeletSubsystem,
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Name: "volume_metric_collection_duration_seconds",
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Help: "Duration in seconds to calculate volume stats",
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Buckets: metrics.DefBuckets,
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StabilityLevel: metrics.ALPHA,
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},
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[]string{"metric_source"},
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)
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)
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var registerMetrics sync.Once
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// Register all metrics.
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func Register() {
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registerMetrics.Do(func() {
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legacyregistry.MustRegister(HTTPRequests)
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legacyregistry.MustRegister(HTTPRequestsDuration)
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legacyregistry.MustRegister(HTTPInflightRequests)
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legacyregistry.MustRegister(VolumeStatCalDuration)
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})
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}
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// SinceInSeconds gets the time since the specified start in seconds.
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func SinceInSeconds(start time.Time) float64 {
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return time.Since(start).Seconds()
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}
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// CollectVolumeStatCalDuration collects the duration in seconds to calculate volume stats.
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func CollectVolumeStatCalDuration(metricSource string, start time.Time) {
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VolumeStatCalDuration.WithLabelValues(metricSource).Observe(SinceInSeconds(start))
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}
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