53 lines
1.7 KiB
Go
53 lines
1.7 KiB
Go
/*
|
|
*
|
|
* Copyright 2019 gRPC 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 backoff provides configuration options for backoff.
|
|
//
|
|
// More details can be found at:
|
|
// https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md.
|
|
//
|
|
// All APIs in this package are experimental.
|
|
package backoff
|
|
|
|
import "time"
|
|
|
|
// Config defines the configuration options for backoff.
|
|
type Config struct {
|
|
// BaseDelay is the amount of time to backoff after the first failure.
|
|
BaseDelay time.Duration
|
|
// Multiplier is the factor with which to multiply backoffs after a
|
|
// failed retry. Should ideally be greater than 1.
|
|
Multiplier float64
|
|
// Jitter is the factor with which backoffs are randomized.
|
|
Jitter float64
|
|
// MaxDelay is the upper bound of backoff delay.
|
|
MaxDelay time.Duration
|
|
}
|
|
|
|
// DefaultConfig is a backoff configuration with the default values specified
|
|
// at https://github.com/grpc/grpc/blob/master/doc/connection-backoff.md.
|
|
//
|
|
// This should be useful for callers who want to configure backoff with
|
|
// non-default values only for a subset of the options.
|
|
var DefaultConfig = Config{
|
|
BaseDelay: 1.0 * time.Second,
|
|
Multiplier: 1.6,
|
|
Jitter: 0.2,
|
|
MaxDelay: 120 * time.Second,
|
|
}
|