mirror of https://github.com/k3s-io/k3s
75 lines
2.5 KiB
Go
75 lines
2.5 KiB
Go
/*
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Copyright 2020 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 cacher
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import (
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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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/*
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* By default, all the following metrics are defined as falling under
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* ALPHA stability level https://github.com/kubernetes/enhancements/blob/master/keps/sig-instrumentation/20190404-kubernetes-control-plane-metrics-stability.md#stability-classes)
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*
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* Promoting the stability level of the metric is a responsibility of the component owner, since it
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* involves explicitly acknowledging support for the metric across multiple releases, in accordance with
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* the metric stability policy.
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*/
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var (
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initCounter = metrics.NewCounterVec(
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&metrics.CounterOpts{
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Name: "apiserver_init_events_total",
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Help: "Counter of init events processed in watchcache broken by resource type.",
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StabilityLevel: metrics.ALPHA,
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},
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[]string{"resource"},
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)
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watchCacheCapacityIncreaseTotal = metrics.NewCounterVec(
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&metrics.CounterOpts{
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Name: "watch_cache_capacity_increase_total",
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Help: "Total number of watch cache capacity increase events broken by resource type.",
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StabilityLevel: metrics.ALPHA,
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},
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[]string{"resource"},
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)
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watchCacheCapacityDecreaseTotal = metrics.NewCounterVec(
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&metrics.CounterOpts{
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Name: "watch_cache_capacity_decrease_total",
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Help: "Total number of watch cache capacity decrease events broken by resource type.",
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StabilityLevel: metrics.ALPHA,
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},
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[]string{"resource"},
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)
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)
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func init() {
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legacyregistry.MustRegister(initCounter)
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legacyregistry.MustRegister(watchCacheCapacityIncreaseTotal)
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legacyregistry.MustRegister(watchCacheCapacityDecreaseTotal)
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}
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// recordsWatchCacheCapacityChange record watchCache capacity resize(increase or decrease) operations.
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func recordsWatchCacheCapacityChange(objType string, old, new int) {
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if old < new {
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watchCacheCapacityIncreaseTotal.WithLabelValues(objType).Inc()
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return
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}
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watchCacheCapacityDecreaseTotal.WithLabelValues(objType).Inc()
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}
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