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client/v3/utils.go
31 строка
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leoyang.yl
fix IsOptsWithFromKey
09 сен 2021, 19:44
09 сен 2021, 19:44
ad69fe0
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// Copyright 2018 The etcd Authors // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package clientv3 import ( "math/rand" "time" ) // jitterUp adds random jitter to the duration. // // This adds or subtracts time from the duration within a given jitter fraction. // For example for 10s and jitter 0.1, it will return a time within [9s, 11s]) // // Reference: https://godoc.org/github.com/grpc-ecosystem/go-grpc-middleware/util/backoffutils func jitterUp(duration time.Duration, jitter float64) time.Duration { multiplier := jitter * (rand.Float64()*2 - 1) return time.Duration(float64(duration) * (1 + multiplier)) }