diff --git a/pkg/mcs/scheduling/server/cluster.go b/pkg/mcs/scheduling/server/cluster.go
index 2e4b8311583..a94c9e3032b 100644
--- a/pkg/mcs/scheduling/server/cluster.go
+++ b/pkg/mcs/scheduling/server/cluster.go
@@ -32,8 +32,7 @@ type Cluster struct {
 const regionLabelGCInterval = time.Hour
 
 // NewCluster creates a new cluster.
-func NewCluster(ctx context.Context, cfg *config.Config, storage storage.Storage, basicCluster *core.BasicCluster, hbStreams *hbstream.HeartbeatStreams) (*Cluster, error) {
-	persistConfig := config.NewPersistConfig(cfg)
+func NewCluster(ctx context.Context, persistConfig *config.PersistConfig, storage storage.Storage, basicCluster *core.BasicCluster, hbStreams *hbstream.HeartbeatStreams) (*Cluster, error) {
 	labelerManager, err := labeler.NewRegionLabeler(ctx, storage, regionLabelGCInterval)
 	if err != nil {
 		return nil, err
@@ -49,6 +48,10 @@ func NewCluster(ctx context.Context, cfg *config.Config, storage storage.Storage
 		storage:        storage,
 	}
 	c.coordinator = schedule.NewCoordinator(ctx, c, hbStreams)
+	err = c.ruleManager.Initialize(persistConfig.GetMaxReplicas(), persistConfig.GetLocationLabels())
+	if err != nil {
+		return nil, err
+	}
 	return c, nil
 }
 
diff --git a/pkg/mcs/scheduling/server/server.go b/pkg/mcs/scheduling/server/server.go
index 3591974d439..c84aee3e654 100644
--- a/pkg/mcs/scheduling/server/server.go
+++ b/pkg/mcs/scheduling/server/server.go
@@ -409,11 +409,15 @@ func (s *Server) startServer() (err error) {
 	s.participant = member.NewParticipant(s.etcdClient)
 	s.participant.InitInfo(uniqueName, uniqueID, path.Join(schedulingPrimaryPrefix, fmt.Sprintf("%05d", 0)),
 		utils.PrimaryKey, "primary election", s.cfg.AdvertiseListenAddr)
+	err = s.startWatcher()
+	if err != nil {
+		return err
+	}
 	s.storage = endpoint.NewStorageEndpoint(
 		kv.NewEtcdKVBase(s.etcdClient, endpoint.PDRootPath(s.clusterID)), nil)
 	basicCluster := core.NewBasicCluster()
 	s.hbStreams = hbstream.NewHeartbeatStreams(s.ctx, s.clusterID, basicCluster)
-	s.cluster, err = NewCluster(s.ctx, s.cfg, s.storage, basicCluster, s.hbStreams)
+	s.cluster, err = NewCluster(s.ctx, s.persistConfig, s.storage, basicCluster, s.hbStreams)
 	if err != nil {
 		return err
 	}
@@ -436,10 +440,6 @@ func (s *Server) startServer() (err error) {
 	if err != nil {
 		return err
 	}
-	err = s.startWatcher()
-	if err != nil {
-		return err
-	}
 
 	go s.GetCoordinator().RunUntilStop()
 	serverReadyChan := make(chan struct{})