diff --git a/src/dnode/src/dnodeModule.c b/src/dnode/src/dnodeModule.c
index bcbc98b5b3aff0825a4d92f8ff612344c3720ce6..0a5b9b550cab09a4bdd5abb25c28aa5c202d8f90 100644
--- a/src/dnode/src/dnodeModule.c
+++ b/src/dnode/src/dnodeModule.c
@@ -146,8 +146,8 @@ void dnodeProcessModuleStatus(uint32_t moduleStatus) {
   }
 }
 
-void dnodeCheckModules() {
-  if (tsModuleStatus & TSDB_MOD_MNODE) return;
+bool dnodeCheckMnodeStarting() {
+  if (tsModuleStatus & TSDB_MOD_MNODE) return false;
 
   SDMMnodeInfos *mnodes = dnodeGetMnodeInfos();
   for (int32_t i = 0; i < mnodes->nodeNum; ++i) {
@@ -156,7 +156,9 @@ void dnodeCheckModules() {
       uint32_t moduleStatus = tsModuleStatus | (1 << TSDB_MOD_MNODE);;
       dInfo("start mnode module, module status:%d, new status:%d", tsModuleStatus, moduleStatus);
       dnodeProcessModuleStatus(moduleStatus);
-      break;
+      return true;
     }
   }
+
+  return false;
 }
diff --git a/src/inc/dnode.h b/src/inc/dnode.h
index 028041b2d25147311315d23e67bad3b2e4d1bcf9..fda9c1c1ddd928ccf02bd6fd8a1480b30769bb6b 100644
--- a/src/inc/dnode.h
+++ b/src/inc/dnode.h
@@ -43,7 +43,7 @@ void    dnodeGetMnodeEpSetForPeer(void *epSet);
 void    dnodeGetMnodeEpSetForShell(void *epSet);
 void *  dnodeGetMnodeInfos();
 int32_t dnodeGetDnodeId();
-void    dnodeCheckModules();
+bool    dnodeCheckMnodeStarting();
 
 void  dnodeAddClientRspHandle(uint8_t msgType, void (*fp)(SRpcMsg *rpcMsg));
 void  dnodeSendMsgToDnode(SRpcEpSet *epSet, SRpcMsg *rpcMsg);
diff --git a/src/mnode/src/mnodeSdb.c b/src/mnode/src/mnodeSdb.c
index 3ff5cc48285909fac861271d78441c009fbccd7c..60f1e8e80bb9e364884c1c40ebf3bbb4fee5b871 100644
--- a/src/mnode/src/mnodeSdb.c
+++ b/src/mnode/src/mnodeSdb.c
@@ -298,8 +298,9 @@ static void sdbUpdateSyncTmrFp(void *param, void *tmrId) { sdbUpdateSync(); }
 void sdbUpdateSync() {
   if (!mnodeIsRunning()) {
     mDebug("mnode not start yet, update sync info later");
-    dnodeCheckModules();
-    taosTmrReset(sdbUpdateSyncTmrFp, 1000, NULL, tsMnodeTmr, &tsUpdateSyncTmr);
+    if (dnodeCheckMnodeStarting()) {
+      taosTmrReset(sdbUpdateSyncTmrFp, 1000, NULL, tsMnodeTmr, &tsUpdateSyncTmr);
+    }
     return;
   }
   mDebug("update sync info in sdb");
diff --git a/tests/script/unique/arbitrator/dn3_mn1_r2_vnode_delDir.sim b/tests/script/unique/arbitrator/dn3_mn1_r2_vnode_delDir.sim
index b625619678c0670c2e0d92d88e63f4e34765a3da..aaf0da8553886b8da1f6df7107a8b25bff531705 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_r2_vnode_delDir.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_r2_vnode_delDir.sim
@@ -53,7 +53,7 @@ system sh/exec.sh -n dnode2 -s start
 system sh/exec.sh -n dnode3 -s start
 sql create dnode $hostname2
 sql create dnode $hostname3
-sleep 3000
+sleep 5000
 
 $sleepTimer = 3000
 
@@ -225,6 +225,7 @@ if $data00 != $totalRows then
 endi
 
 print ============== step5: stop dnode2, and remove its vnode
+sleep 5000
 system sh/exec.sh -n dnode2 -s stop -x SIGINT
 sleep $sleepTimer
 
diff --git a/tests/script/unique/arbitrator/replica_changeWithArbitrator.sim b/tests/script/unique/arbitrator/replica_changeWithArbitrator.sim
index 10964b9209eeea8a5d93f7a47b804a66b5d8e9bb..3715be5fa9b4d9b5a623806ed3330e313edae2f1 100644
--- a/tests/script/unique/arbitrator/replica_changeWithArbitrator.sim
+++ b/tests/script/unique/arbitrator/replica_changeWithArbitrator.sim
@@ -193,6 +193,7 @@ if $data00 != $totalRows then
 endi
 
 print ============== step5: stop dnode1
+sleep 5000
 system sh/exec.sh -n dnode1 -s stop
 sleep 3000
 
diff --git a/tests/script/unique/dnode/alternativeRole.sim b/tests/script/unique/dnode/alternativeRole.sim
index ab37c1603a82c120d797cbc1e0fbe53f228e6b1a..b5d861c44f6b98e32309f4a187f54c7d8c7c6bfa 100644
--- a/tests/script/unique/dnode/alternativeRole.sim
+++ b/tests/script/unique/dnode/alternativeRole.sim
@@ -18,13 +18,14 @@ system sh/cfg.sh -n dnode3 -c numOfMnodes -v 3
 
 print ========== step1
 system sh/exec.sh -n dnode1 -s start
+sleep 3000
 sql connect
+
 sql create dnode $hostname2
 system sh/exec.sh -n dnode2 -s start
-sleep 3000
 sql create dnode $hostname3
 system sh/exec.sh -n dnode3 -s start
-sleep 3000
+sleep 5000
 
 sql show dnodes
 print dnode1 $data5_1