diff --git a/pkg/ring-controller/agent/vcjobworker.go b/pkg/ring-controller/agent/vcjobworker.go
index 38f1aa109a5f85737cc5ce5f12b5a8a22a837ef4..851d9db7b8cb99b7b5ee27584274dd546667153d 100644
--- a/pkg/ring-controller/agent/vcjobworker.go
+++ b/pkg/ring-controller/agent/vcjobworker.go
@@ -354,17 +354,17 @@ func (b *WorkerInfo) handleAddUpdateEvent(podInfo *podIdentifier, pod *apiCoreV1
 	if rankExist {
 		return fmt.Errorf("pod %s/%s already has rankIndex: %s", pod.Namespace, pod.Name, rankIndexStr)
 	}
+	rankIndexStr = strconv.Itoa(int(b.rankIndex))
 
-	err := b.updatePod(pod, func(newPod *apiCoreV1.Pod) {
-		rankIndexStr = strconv.Itoa(int(b.rankIndex))
-		newPod.Annotations[PodRankIndexKey] = rankIndexStr
-	})
+	// Cache device info from the pod
+	err := b.configmapData.CachePodInfo(pod, instance, rankIndexStr)
 	if err != nil {
 		return err
 	}
 
-	// Cache device info from the pod
-	err = b.configmapData.CachePodInfo(pod, instance, rankIndexStr)
+	err = b.updatePod(pod, func(newPod *apiCoreV1.Pod) {
+		newPod.Annotations[PodRankIndexKey] = rankIndexStr
+	})
 	if err != nil {
 		return err
 	}
diff --git a/pkg/ring-controller/ranktable/v2/ranktable.go b/pkg/ring-controller/ranktable/v2/ranktable.go
index aa31ff7af98e0467793374101dbcdc1b7905106d..f270a389fc9f168019a08ffd654b9939f437c912 100644
--- a/pkg/ring-controller/ranktable/v2/ranktable.go
+++ b/pkg/ring-controller/ranktable/v2/ranktable.go
@@ -47,6 +47,10 @@ func (r *RankTable) BeforeUpdate() {
 
 // CachePodInfo :Cache pod info to RankTableV2
 func (r *RankTable) CachePodInfo(pod *apiCoreV1.Pod, instance ranktablev1.Instance, rankStr string) error {
+	if _, ok := r.Servers.Load(pod.UID); ok {
+		return fmt.Errorf("%s/%s already exists in ranktable", pod.Namespace, pod.Name)
+	}
+
 	rankIndex, err := strconv.Atoi(rankStr)
 	if err != nil {
 		return fmt.Errorf("conv rankStr(%s) to int failed, err: %v", rankStr, err)