diff --git a/cdc/server/server.go b/cdc/server/server.go
index c1a311373c4..b9dbdbe6ec5 100644
--- a/cdc/server/server.go
+++ b/cdc/server/server.go
@@ -147,10 +147,11 @@ func (s *server) prepare(ctx context.Context) error {
 	// then cause the new owner cannot be elected immediately after the old owner offline.
 	// see https://github.com/etcd-io/etcd/blob/525d53bd41/client/v3/concurrency/election.go#L98
 	etcdCli, err := clientv3.New(clientv3.Config{
-		Endpoints:   s.pdEndpoints,
-		TLS:         tlsConfig,
-		LogConfig:   &logConfig,
-		DialTimeout: 5 * time.Second,
+		Endpoints:        s.pdEndpoints,
+		TLS:              tlsConfig,
+		LogConfig:        &logConfig,
+		DialTimeout:      5 * time.Second,
+		AutoSyncInterval: 30 * time.Second,
 		DialOptions: []grpc.DialOption{
 			grpcTLSOption,
 			grpc.WithBlock(),
diff --git a/dm/pkg/etcdutil/etcdutil.go b/dm/pkg/etcdutil/etcdutil.go
index a8cbec291e6..d0ba3df8faa 100644
--- a/dm/pkg/etcdutil/etcdutil.go
+++ b/dm/pkg/etcdutil/etcdutil.go
@@ -60,9 +60,10 @@ var etcdDefaultTxnStrategy = retry.FiniteRetryStrategy{}
 // CreateClient creates an etcd client with some default config items.
 func CreateClient(endpoints []string, tlsCfg *tls.Config) (*clientv3.Client, error) {
 	return clientv3.New(clientv3.Config{
-		Endpoints:   endpoints,
-		DialTimeout: DefaultDialTimeout,
-		TLS:         tlsCfg,
+		Endpoints:        endpoints,
+		DialTimeout:      DefaultDialTimeout,
+		AutoSyncInterval: 30 * time.Second,
+		TLS:              tlsCfg,
 	})
 }