91 lines
2.9 KiB
Go
91 lines
2.9 KiB
Go
// Copyright 2024 PingCAP, Inc.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package store
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import (
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"time"
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"github.com/pingcap/tidb/pkg/config"
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"github.com/pingcap/tidb/pkg/keyspace"
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"github.com/pingcap/tidb/pkg/kv"
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"github.com/pingcap/tidb/pkg/util/etcd"
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clientv3 "go.etcd.io/etcd/client/v3"
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"go.uber.org/zap"
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"google.golang.org/grpc"
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"google.golang.org/grpc/backoff"
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"google.golang.org/grpc/keepalive"
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)
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// NewEtcdCli creates a new clientv3.Client from store if the store support it.
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// the returned client will have the same keyspace the store, and it might be nil.
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// TODO currently uni-store/mock-tikv/tikv all implements EtcdBackend while they don't support actually.
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// refactor this part.
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func NewEtcdCli(store kv.Storage) (*clientv3.Client, error) {
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etcdStore, addrs, err := GetEtcdAddrs(store)
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if err != nil {
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return nil, err
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}
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if len(addrs) == 0 {
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return nil, nil
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}
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cli, err := NewEtcdCliWithAddrs(addrs, etcdStore)
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if err != nil {
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return nil, err
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}
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if len(store.GetCodec().GetKeyspace()) > 0 {
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etcd.SetEtcdCliByNamespace(cli, keyspace.MakeKeyspaceEtcdNamespace(store.GetCodec()))
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}
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return cli, nil
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}
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// GetEtcdAddrs gets the etcd addrs from store if the store support it.
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func GetEtcdAddrs(store kv.Storage) (kv.EtcdBackend, []string, error) {
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etcdStore, ok := store.(kv.EtcdBackend)
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if !ok {
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return nil, nil, nil
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}
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addrs, err := etcdStore.EtcdAddrs()
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if err != nil {
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return nil, nil, err
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}
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return etcdStore, addrs, nil
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}
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// NewEtcdCliWithAddrs creates a new clientv3.Client with specified addrs and etcd backend.
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func NewEtcdCliWithAddrs(addrs []string, ebd kv.EtcdBackend) (*clientv3.Client, error) {
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cfg := config.GetGlobalConfig()
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etcdLogCfg := zap.NewProductionConfig()
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etcdLogCfg.Level = zap.NewAtomicLevelAt(zap.ErrorLevel)
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backoffCfg := backoff.DefaultConfig
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backoffCfg.MaxDelay = 3 * time.Second
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cli, err := clientv3.New(clientv3.Config{
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LogConfig: &etcdLogCfg,
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Endpoints: addrs,
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AutoSyncInterval: 30 * time.Second,
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DialTimeout: 5 * time.Second,
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DialOptions: []grpc.DialOption{
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grpc.WithConnectParams(grpc.ConnectParams{
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Backoff: backoffCfg,
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}),
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grpc.WithKeepaliveParams(keepalive.ClientParameters{
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Time: time.Duration(cfg.TiKVClient.GrpcKeepAliveTime) * time.Second,
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Timeout: time.Duration(cfg.TiKVClient.GrpcKeepAliveTimeout) * time.Second,
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}),
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},
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TLS: ebd.TLSConfig(),
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})
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return cli, err
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}
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