diff --git a/api/v1alpha1/backup_types.go b/api/v1alpha1/backup_types.go
index a1237f5de..0c8502edb 100644
--- a/api/v1alpha1/backup_types.go
+++ b/api/v1alpha1/backup_types.go
@@ -31,7 +31,7 @@ type BackupSpec struct {
 
 	// To specify the image that will be used for sidecar container.
 	// +optional
-	// +kubebuilder:default:="radondb/mysql-sidecar:0.1.88"
+	// +kubebuilder:default:="radondb/mysql-sidecar:latest"
 	Image string `json:"image"`
 
 	// HostName represents the host for which to take backup
diff --git a/cluster/syncer/statefulset.go b/cluster/syncer/statefulset.go
index 23a98f171..4853d256c 100644
--- a/cluster/syncer/statefulset.go
+++ b/cluster/syncer/statefulset.go
@@ -510,6 +510,13 @@ func (s *StatefulSetSyncer) applyNWait(ctx context.Context, pod *corev1.Pod) err
 			return true, nil
 		}
 
+		// Because of PDB, minAvaliable 50%, if Spec Replicas is 5, sfs Spec first be set to 3, then to be set 5
+		// pod healthy is yes,but controller-revision-hash will never correct, it must return,otherwise wait for 2 hours.
+		// https://kubernetes.io/zh/docs/tasks/run-application/configure-pdb/
+		if pod.ObjectMeta.Labels["healthy"] == "yes" &&
+			pod.ObjectMeta.Labels["controller-revision-hash"] != s.sfs.Status.UpdateRevision {
+			return false, fmt.Errorf("pod %s is ready, wait next schedule", pod.Name)
+		}
 		return false, nil
 	})
 }
diff --git a/sidecar/config.go b/sidecar/config.go
index b3eae4760..8a08c9f30 100644
--- a/sidecar/config.go
+++ b/sidecar/config.go
@@ -459,7 +459,7 @@ done
 i=0
 while [ $i -lt %d ]; do
 	if [ $i -ne %d ]; then
-		while true; do
+		for k in $(seq 12); do
 			res=$(curl -i -X POST -d '{"address": "%s-'$i'.%s.%s:%d"}' -u root:%s http://%s:%d/v1/cluster/add)
 			code=$(echo $res|grep "HTTP"|awk '{print $2}')
 			if [ "$code" -eq "200" ]; then
@@ -467,7 +467,7 @@ while [ $i -lt %d ]; do
 			fi
 		done
 
-		while true; do
+		for k in $(seq 12); do
 			res=$(curl -i -X POST -d '{"address": "%s:%d"}' -u root:%s http://%s-$i.%s.%s:%d/v1/cluster/add)
 			code=$(echo $res|grep "HTTP"|awk '{print $2}')
 			if [ "$code" -eq "200" ]; then