diff --git a/pkg/server/manager.go b/pkg/server/manager.go
index 34f6a4aa1bc6e3b4eaeacdd0e191802b94ed843a..97debe88790307d7e347273be6133707d0f1e7fe 100644
--- a/pkg/server/manager.go
+++ b/pkg/server/manager.go
@@ -41,6 +41,7 @@ import (
 )
 
 var lastStatus = common.NewAtomicBool(false)
+var resourceVersion = ""
 
 // HwDevManager manages huawei device devices.
 type HwDevManager struct {
@@ -1027,7 +1028,6 @@ func (hdm *HwDevManager) isSupportGraceTolerance() {
 }
 
 func (hdm *HwDevManager) pollFaultCodeCM(ctx context.Context) {
-	var resourceVersion = ""
 	var interval = common.PollFaultCodeCMInterval
 	for {
 		select {
@@ -1044,17 +1044,17 @@ func (hdm *HwDevManager) pollFaultCodeCM(ctx context.Context) {
 			if err != nil {
 				hwlog.RunLog.Debugf("cannot find '%s' configmap, reason: %v", common.FaultCodeCMName, err)
 				initFaultInfoFromFile()
-				time.Sleep(time.Duration(common.PollFaultCodeCMInterval) * time.Second)
+				time.Sleep(time.Duration(interval) * time.Second)
 				continue
 			}
 			interval = getFaultCodeCMPollInterval(configMap)
-			updateFaultConfigFromCm(resourceVersion, configMap)
+			updateFaultConfigFromCm(configMap)
 			time.Sleep(time.Duration(interval) * time.Second)
 		}
 	}
 }
 
-func updateFaultConfigFromCm(resourceVersion string, configMap *v1.ConfigMap) {
+func updateFaultConfigFromCm(configMap *v1.ConfigMap) {
 	if resourceVersion == configMap.ResourceVersion {
 		return
 	}