diff --git a/src/dnode/src/dnodeMgmt.c b/src/dnode/src/dnodeMgmt.c
index c05cd24c1da20dce49ec2175dbd2e69607125470..7dab4245b07140c6e706650ae3e20f8562e2df4b 100644
--- a/src/dnode/src/dnodeMgmt.c
+++ b/src/dnode/src/dnodeMgmt.c
@@ -459,18 +459,24 @@ static int32_t dnodeProcessConfigDnodeMsg(SRpcMsg *pMsg) {
 
 static int32_t dnodeProcessCreateMnodeMsg(SRpcMsg *pMsg) {
   SMDCreateMnodeMsg *pCfg = pMsg->pCont;
+  pCfg->dnodeId = htonl(pCfg->dnodeId);
   if (pCfg->dnodeId != dnodeGetDnodeId()) {
-    dError("dnodeId:%d in create mnode msg is not equal with saved dnodeId:%d", pCfg->dnodeId, dnodeGetDnodeId());
+    dError("dnodeId:%d, in create mnode msg is not equal with saved dnodeId:%d", pCfg->dnodeId, dnodeGetDnodeId());
     return TSDB_CODE_MND_DNODE_ID_NOT_CONFIGURED;
   }
 
   if (strcmp(pCfg->dnodeEp, tsLocalEp) != 0) {
-    dError("dnodeEp:%s in create mnode msg is not equal with saved dnodeEp:%s", pCfg->dnodeEp, tsLocalEp);
+    dError("dnodeEp:%s, in create mnode msg is not equal with saved dnodeEp:%s", pCfg->dnodeEp, tsLocalEp);
     return TSDB_CODE_MND_DNODE_EP_NOT_CONFIGURED;
   }
 
-  dDebug("dnodeId:%d, create mnode msg is received", pCfg->dnodeId);
-  dnodeStartMnode();
+  dDebug("dnodeId:%d, create mnode msg is received from mnodes, numOfMnodes:%d", pCfg->dnodeId, pCfg->mnodes.nodeNum);
+  for (int i = 0; i < pCfg->mnodes.nodeNum; ++i) {
+    pCfg->mnodes.nodeInfos[i].nodeId = htonl(pCfg->mnodes.nodeInfos[i].nodeId);
+    dDebug("mnode index:%d, mnode:%d:%s", i, pCfg->mnodes.nodeInfos[i].nodeId, pCfg->mnodes.nodeInfos[i].nodeEp);
+  }
+
+  dnodeStartMnode(&pCfg->mnodes);
 
   return TSDB_CODE_SUCCESS;
 }
@@ -485,31 +491,6 @@ void dnodeUpdateMnodeEpSetForPeer(SRpcEpSet *pEpSet) {
   for (int i = 0; i < pEpSet->numOfEps; ++i) {
     pEpSet->port[i] -= TSDB_PORT_DNODEDNODE;
     dInfo("mnode index:%d %s:%u", i, pEpSet->fqdn[i], pEpSet->port[i]);
-
-#if 0
-    if (!mnodeIsRunning()) {
-      if (strcmp(pEpSet->fqdn[i], tsLocalFqdn) == 0 && pEpSet->port[i] == tsServerPort) {
-        dInfo("mnode index:%d %s:%u self should work as mnode", i, pEpSet->fqdn[i], pEpSet->port[i]);
-        bool find = false;
-        for (int i = 0; i < tsDMnodeInfos.nodeNum; ++i) {
-          if (tsDMnodeInfos.nodeInfos[i].nodeId == dnodeGetDnodeId()) {
-            dInfo("localEp found in mnode infos");
-            find = true;
-            break;
-          }
-        }
-
-        if (!find) {
-          dInfo("localEp not found in mnode infos, will set into mnode infos");
-          tstrncpy(tsDMnodeInfos.nodeInfos[tsDMnodeInfos.nodeNum].nodeEp, tsLocalEp, TSDB_EP_LEN);
-          tsDMnodeInfos.nodeInfos[tsDMnodeInfos.nodeNum].nodeId = dnodeGetDnodeId();
-          tsDMnodeInfos.nodeNum++;
-        }
-
-        dnodeStartMnode();
-      }
-    }
-#endif    
   }
 
   tsDMnodeEpSet = *pEpSet;
@@ -598,7 +579,6 @@ static void dnodeUpdateMnodeInfos(SDMMnodeInfos *pMnodes) {
   }
 
   dnodeSaveMnodeInfos();
-  sdbUpdateSync();
 }
 
 static bool dnodeReadMnodeInfos() {
diff --git a/src/dnode/src/dnodeModule.c b/src/dnode/src/dnodeModule.c
index ba7cdf2664cb641047f5651920925808e5ec530e..001c73eb3946fe46984c25758d9e0ac2a678dd37 100644
--- a/src/dnode/src/dnodeModule.c
+++ b/src/dnode/src/dnodeModule.c
@@ -146,7 +146,9 @@ void dnodeProcessModuleStatus(uint32_t moduleStatus) {
   }
 }
 
-bool dnodeStartMnode() {
+bool dnodeStartMnode(void *pMnodes) {
+  SDMMnodeInfos *mnodes = pMnodes;
+
   if (tsModuleStatus & (1 << TSDB_MOD_MNODE)) {
     dDebug("mnode module is already started, module status:%d", tsModuleStatus);
     return false;
@@ -156,6 +158,7 @@ bool dnodeStartMnode() {
   dInfo("start mnode module, module status:%d, new status:%d", tsModuleStatus, moduleStatus);
   dnodeProcessModuleStatus(moduleStatus);
 
-  sdbUpdateSync();
+  sdbUpdateSync(mnodes);
+
   return true;
 }
diff --git a/src/inc/dnode.h b/src/inc/dnode.h
index 1757bda812169111e47d6b1891122e25f7015cef..83d2a4ad9c58a77510aacf076296213779327326 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();
-bool    dnodeStartMnode();
+bool    dnodeStartMnode(void *pModes);
 
 void  dnodeAddClientRspHandle(uint8_t msgType, void (*fp)(SRpcMsg *rpcMsg));
 void  dnodeSendMsgToDnode(SRpcEpSet *epSet, SRpcMsg *rpcMsg);
diff --git a/src/inc/mnode.h b/src/inc/mnode.h
index 03a25e0f92b881b6b1b9bcfcf6605257b776ae1b..fbd651ce908abcad5416d12a3f7d68528c766535 100644
--- a/src/inc/mnode.h
+++ b/src/inc/mnode.h
@@ -60,7 +60,7 @@ int32_t mnodeInitSystem();
 int32_t mnodeStartSystem();
 void    mnodeCleanupSystem();
 void    mnodeStopSystem();
-void    sdbUpdateSync();
+void    sdbUpdateSync(void *pMnodes);
 bool    mnodeIsRunning();
 int32_t mnodeProcessRead(SMnodeMsg *pMsg);
 int32_t mnodeProcessWrite(SMnodeMsg *pMsg);
diff --git a/src/inc/taosmsg.h b/src/inc/taosmsg.h
index c6e9b65abfab6176506b2439ba743ef19e8864f6..507ccf8d80f189954ffac3d3ae390d64cbc7fb1a 100644
--- a/src/inc/taosmsg.h
+++ b/src/inc/taosmsg.h
@@ -722,6 +722,7 @@ typedef struct {
 typedef struct {
   int32_t dnodeId;
   char    dnodeEp[TSDB_EP_LEN];  // end point, hostname:port
+  SDMMnodeInfos mnodes;
 } SMDCreateMnodeMsg;
 
 typedef struct {
diff --git a/src/mnode/src/mnodeMain.c b/src/mnode/src/mnodeMain.c
index d63a5758686f5db46926e1b3c1bc97becd53d8ae..ea2ac9bf90ed6669c01402c78e11c23bd200dc3d 100644
--- a/src/mnode/src/mnodeMain.c
+++ b/src/mnode/src/mnodeMain.c
@@ -109,7 +109,7 @@ int32_t mnodeStartSystem() {
 
   mInfo("mnode is initialized successfully");
 
-  sdbUpdateSync();
+  sdbUpdateSync(NULL);
 
   return 0;
 }
diff --git a/src/mnode/src/mnodeMnode.c b/src/mnode/src/mnodeMnode.c
index 93d5bc4f22dd179be3a0039b5f055b7f2eae7ee5..d058d593ef4b5303241b1897b44eaac2327fc815 100644
--- a/src/mnode/src/mnodeMnode.c
+++ b/src/mnode/src/mnodeMnode.c
@@ -276,8 +276,20 @@ static int32_t mnodeSendCreateMnodeMsg(int32_t dnodeId, char *dnodeEp) {
   if (pCreate == NULL) {
     return TSDB_CODE_MND_OUT_OF_MEMORY;
   } else {
-    pCreate->dnodeId = dnodeId;
+    pCreate->dnodeId = htonl(dnodeId);
     tstrncpy(pCreate->dnodeEp, dnodeEp, sizeof(pCreate->dnodeEp));
+    pCreate->mnodes = tsMnodeInfos;
+    bool found = false;
+    for (int i = 0; i < pCreate->mnodes.nodeNum; ++i) {
+      if (pCreate->mnodes.nodeInfos[i].nodeId == htonl(dnodeId)) {
+        found = true;
+      }
+    }
+    if (!found) {
+      pCreate->mnodes.nodeInfos[pCreate->mnodes.nodeNum].nodeId = htonl(dnodeId);
+      tstrncpy(pCreate->mnodes.nodeInfos[pCreate->mnodes.nodeNum].nodeEp, dnodeEp, sizeof(pCreate->dnodeEp));
+      pCreate->mnodes.nodeNum++;
+    }
   }
 
   SRpcMsg rpcMsg = {0};
@@ -291,6 +303,8 @@ static int32_t mnodeSendCreateMnodeMsg(int32_t dnodeId, char *dnodeEp) {
 
   if (rpcRsp.code != TSDB_CODE_SUCCESS) {
     mError("dnode:%d, failed to send create mnode msg, ep:%s reason:%s", dnodeId, dnodeEp, tstrerror(rpcRsp.code));
+  } else {
+    mDebug("dnode:%d, create mnode msg is disposed, mnode is created in dnode", dnodeId);
   }
 
   rpcFreeCont(rpcRsp.pCont);
@@ -301,8 +315,9 @@ static int32_t mnodeCreateMnodeCb(SMnodeMsg *pMsg, int32_t code) {
   if (code != TSDB_CODE_SUCCESS) {
     mError("failed to create mnode, reason:%s", tstrerror(code));
   } else {
-    mDebug("mnode is created");
+    mDebug("mnode is created successfully");
     mnodeUpdateMnodeEpSet();
+    sdbUpdateSync(NULL);
   }
 
   return code;
@@ -314,9 +329,9 @@ void mnodeCreateMnode(int32_t dnodeId, char *dnodeEp, bool needConfirm) {
   pMnode->createdTime = taosGetTimestampMs();
 
   SSdbOper oper = {
-    .type = SDB_OPER_GLOBAL,
+    .type  = SDB_OPER_GLOBAL,
     .table = tsMnodeSdb,
-    .pObj = pMnode,
+    .pObj  = pMnode,
     .writeCb = mnodeCreateMnodeCb
   };
 
@@ -346,6 +361,7 @@ void mnodeDropMnodeLocal(int32_t dnodeId) {
   }
 
   mnodeUpdateMnodeEpSet();
+  sdbUpdateSync(NULL);
 }
 
 int32_t mnodeDropMnode(int32_t dnodeId) {
@@ -365,6 +381,7 @@ int32_t mnodeDropMnode(int32_t dnodeId) {
   sdbDecRef(tsMnodeSdb, pMnode);
 
   mnodeUpdateMnodeEpSet();
+  sdbUpdateSync(NULL);
 
   return code;
 }
diff --git a/src/mnode/src/mnodeSdb.c b/src/mnode/src/mnodeSdb.c
index 9641a706d708013f34c560588ead76b038cada62..19ed3a82ec755e16867e4f04b9607bc1813d1404 100644
--- a/src/mnode/src/mnodeSdb.c
+++ b/src/mnode/src/mnodeSdb.c
@@ -297,27 +297,19 @@ static void sdbConfirmForward(void *ahandle, void *param, int32_t code) {
   taosFreeQitem(pOper);
 }
 
-void sdbUpdateSync() {
+void sdbUpdateSync(void *pMnodes) {
+  SDMMnodeInfos *mnodes = pMnodes;
   if (!mnodeIsRunning()) {
-    mDebug("mnode not start yet, update sync info later");
+    mDebug("mnode not start yet, update sync config later");
     return;
   }
 
-  mDebug("update sync info in sdb");
+  mDebug("update sync config in sync module, mnodes:%p", pMnodes);
 
   SSyncCfg syncCfg = {0};
   int32_t  index = 0;
 
-  SDMMnodeInfos *mnodes = dnodeGetMnodeInfos();
-  for (int32_t i = 0; i < mnodes->nodeNum; ++i) {
-    SDMMnodeInfo *node = &mnodes->nodeInfos[i];
-    syncCfg.nodeInfo[i].nodeId = node->nodeId;
-    taosGetFqdnPortFromEp(node->nodeEp, syncCfg.nodeInfo[i].nodeFqdn, &syncCfg.nodeInfo[i].nodePort);
-    syncCfg.nodeInfo[i].nodePort += TSDB_PORT_SYNC;
-    index++;
-  }
-
-  if (index == 0) {
+  if (mnodes == NULL) {
     void *pIter = NULL;
     while (1) {
       SMnodeObj *pMnode = NULL;
@@ -337,9 +329,19 @@ void sdbUpdateSync() {
       mnodeDecMnodeRef(pMnode);
     }
     sdbFreeIter(pIter);
+    syncCfg.replica = index;
+    mDebug("mnodes info not input, use infos in sdb, numOfMnodes:%d", syncCfg.replica);
+  } else {
+    for (index = 0; index < mnodes->nodeNum; ++index) {
+      SDMMnodeInfo *node = &mnodes->nodeInfos[index];
+      syncCfg.nodeInfo[index].nodeId = node->nodeId;
+      taosGetFqdnPortFromEp(node->nodeEp, syncCfg.nodeInfo[index].nodeFqdn, &syncCfg.nodeInfo[index].nodePort);
+      syncCfg.nodeInfo[index].nodePort += TSDB_PORT_SYNC;
+    }
+    syncCfg.replica = index;
+    mDebug("mnodes info input, numOfMnodes:%d", syncCfg.replica);
   }
 
-  syncCfg.replica = index;
   syncCfg.quorum = (syncCfg.replica == 1) ? 1 : 2;
 
   bool hasThisDnode = false;
@@ -350,8 +352,15 @@ void sdbUpdateSync() {
     }
   }
 
-  if (!hasThisDnode) return;
-  if (memcmp(&syncCfg, &tsSdbObj.cfg, sizeof(SSyncCfg)) == 0) return;
+  if (!hasThisDnode) {
+    sdbError("update sync config, this dnode not exist");
+    return;
+  }
+
+  if (memcmp(&syncCfg, &tsSdbObj.cfg, sizeof(SSyncCfg)) == 0) {
+    sdbDebug("update sync config, info not changed");
+    return;
+  }
 
   sdbInfo("work as mnode, replica:%d", syncCfg.replica);
   for (int32_t i = 0; i < syncCfg.replica; ++i) {
diff --git a/tests/script/unique/mnode/mgmt21.sim b/tests/script/unique/mnode/mgmt21.sim
index a481f907e2cab1adc4335a8d1751a4ac60164b80..8409383309dbde5500b9719cd64fd74ca5e384b2 100644
--- a/tests/script/unique/mnode/mgmt21.sim
+++ b/tests/script/unique/mnode/mgmt21.sim
@@ -25,7 +25,7 @@ sql create dnode $hostname2
 $x = 0
 show2: 
 	$x = $x + 1
-	sleep 4000
+	sleep 2000
 	if $x == 5 then 
 		return -1
 	endi