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ceph-csi/vendor/go.etcd.io/etcd/client/v3/options.go

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// Copyright 2017 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"
"time"
"google.golang.org/grpc"
)
var (
// client-side handling retrying of request failures where data was not written to the wire or
// where server indicates it did not process the data. gRPC default is default is "WaitForReady(false)"
// but for etcd we default to "WaitForReady(true)" to minimize client request error responses due to
// transient failures.
defaultWaitForReady = grpc.WaitForReady(true)
// client-side request send limit, gRPC default is math.MaxInt32
// Make sure that "client-side send limit < server-side default send/recv limit"
// Same value as "embed.DefaultMaxRequestBytes" plus gRPC overhead bytes
defaultMaxCallSendMsgSize = grpc.MaxCallSendMsgSize(2 * 1024 * 1024)
// client-side response receive limit, gRPC default is 4MB
// Make sure that "client-side receive limit >= server-side default send/recv limit"
// because range response can easily exceed request send limits
// Default to math.MaxInt32; writes exceeding server-side send limit fails anyway
defaultMaxCallRecvMsgSize = grpc.MaxCallRecvMsgSize(math.MaxInt32)
// client-side non-streaming retry limit, only applied to requests where server responds with
// a error code clearly indicating it was unable to process the request such as codes.Unavailable.
// If set to 0, retry is disabled.
defaultUnaryMaxRetries uint = 100
// client-side streaming retry limit, only applied to requests where server responds with
// a error code clearly indicating it was unable to process the request such as codes.Unavailable.
// If set to 0, retry is disabled.
defaultStreamMaxRetries = ^uint(0) // max uint
// client-side retry backoff wait between requests.
defaultBackoffWaitBetween = 25 * time.Millisecond
// client-side retry backoff default jitter fraction.
defaultBackoffJitterFraction = 0.10
)
// defaultCallOpts defines a list of default "gRPC.CallOption".
// Some options are exposed to "clientv3.Config".
// Defaults will be overridden by the settings in "clientv3.Config".
var defaultCallOpts = []grpc.CallOption{
defaultWaitForReady,
defaultMaxCallSendMsgSize,
defaultMaxCallRecvMsgSize,
}
// MaxLeaseTTL is the maximum lease TTL value
const MaxLeaseTTL = 9000000000