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41 lines
1.5 KiB
Go
41 lines
1.5 KiB
Go
/*
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Copyright 2021 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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"k8s.io/component-base/metrics"
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)
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const ReplicaSetControllerSubsystem = "replicaset_controller"
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var SortingDeletionAgeRatio = metrics.NewHistogram(
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&metrics.HistogramOpts{
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Subsystem: ReplicaSetControllerSubsystem,
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Name: "sorting_deletion_age_ratio",
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Help: "The ratio of chosen deleted pod's ages to the current youngest pod's age (at the time). Should be <2. " +
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"The intent of this metric is to measure the rough efficacy of the LogarithmicScaleDown feature gate's effect on " +
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"the sorting (and deletion) of pods when a replicaset scales down. This only considers Ready pods when calculating and reporting.",
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Buckets: metrics.ExponentialBuckets(0.25, 2, 6),
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StabilityLevel: metrics.ALPHA,
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},
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)
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// Register registers ReplicaSet controller metrics.
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func Register(registrationFunc func(metrics.Registerable) error) error {
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return registrationFunc(SortingDeletionAgeRatio)
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}
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