/
etcd.go
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/
etcd.go
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// Copyright 2023 PingCAP, Inc.
// SPDX-License-Identifier: Apache-2.0
package infosync
import (
"strings"
"time"
"github.com/pingcap/tiproxy/lib/config"
"github.com/pingcap/tiproxy/lib/util/errors"
"github.com/pingcap/tiproxy/pkg/manager/cert"
clientv3 "go.etcd.io/etcd/client/v3"
"go.uber.org/zap"
"google.golang.org/grpc"
"google.golang.org/grpc/backoff"
"google.golang.org/grpc/keepalive"
)
// InitEtcdClient initializes an etcd client that connects to PD ETCD server.
func InitEtcdClient(logger *zap.Logger, cfg *config.Config, certMgr *cert.CertManager) (*clientv3.Client, error) {
pdAddr := cfg.Proxy.PDAddrs
if len(pdAddr) == 0 {
// use tidb server addresses directly
return nil, nil
}
pdEndpoints := strings.Split(pdAddr, ",")
logger.Info("connect ETCD servers", zap.Strings("addrs", pdEndpoints))
etcdClient, err := clientv3.New(clientv3.Config{
Endpoints: pdEndpoints,
TLS: certMgr.ClusterTLS(),
Logger: logger.Named("etcdcli"),
AutoSyncInterval: 30 * time.Second,
DialTimeout: 5 * time.Second,
DialOptions: []grpc.DialOption{
grpc.WithKeepaliveParams(keepalive.ClientParameters{
Time: 10 * time.Second,
Timeout: 3 * time.Second,
}),
grpc.WithConnectParams(grpc.ConnectParams{
Backoff: backoff.Config{
BaseDelay: time.Second,
Multiplier: 1.1,
Jitter: 0.1,
MaxDelay: 3 * time.Second,
},
MinConnectTimeout: 3 * time.Second,
}),
},
})
return etcdClient, errors.Wrapf(err, "init etcd client failed")
}