diff --git a/pkg/ring-controller/ranktable/v2/ranktable.go b/pkg/ring-controller/ranktable/v2/ranktable.go
index b527603a6e189804c1f8a38257a2279c2fedd4c5..0015c670a6b12a27355c6d252689dfd21d0e6c86 100644
--- a/pkg/ring-controller/ranktable/v2/ranktable.go
+++ b/pkg/ring-controller/ranktable/v2/ranktable.go
@@ -19,6 +19,7 @@ import (
 	"fmt"
 	"sort"
 	"strconv"
+	"sync"
 
 	apiCoreV1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/types"
@@ -116,5 +117,5 @@ func (r *RankTable) GetPodNum() int {
 
 // DeletePod delete pod in server when pod is deleted
 func (r *RankTable) DeletePod(podID types.UID) {
-	r.Servers.Delete(podID)
+	r.Servers = &sync.Map{}
 }