diff --git a/include/common/tgrant.h b/include/common/tgrant.h
index 3e4809c662..3d5fbb1287 100644
--- a/include/common/tgrant.h
+++ b/include/common/tgrant.h
@@ -57,9 +57,8 @@ typedef enum {
   TSDB_GRANT_BACKUP_RESTORE_EXPIRE,
 } EGrantType;
 
-
 int32_t grantCheck(EGrantType grant);
-char*   grantGetMachineId();
+char*   tGetMachineId();
 
 #ifndef GRANTS_CFG
 #ifdef TD_ENTERPRISE
diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index be7ffdd105..d2ed7aca69 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -1564,9 +1564,11 @@ typedef struct {
   int64_t     updateTime;
   float       numOfCores;
   int32_t     numOfSupportVnodes;
+  int32_t     numOfDiskCfg;
   int64_t     memTotal;
   int64_t     memAvail;
   char        dnodeEp[TSDB_EP_LEN];
+  char        machineId[TSDB_MACHINE_ID_LEN + 1];
   SMnodeLoad  mload;
   SQnodeLoad  qload;
   SClusterCfg clusterCfg;
diff --git a/include/common/tmsgdef.h b/include/common/tmsgdef.h
index 7503fca8c2..288fb5cead 100644
--- a/include/common/tmsgdef.h
+++ b/include/common/tmsgdef.h
@@ -164,7 +164,7 @@
   TD_DEF_MSG_TYPE(TDMT_MND_BATCH_META, "batch-meta", NULL, NULL)
   TD_DEF_MSG_TYPE(TDMT_MND_TABLE_CFG, "table-cfg", NULL, NULL)
   TD_DEF_MSG_TYPE(TDMT_MND_TMQ_CREATE_TOPIC, "create-topic", SMCreateTopicReq, SMCreateTopicRsp)
-  TD_DEF_MSG_TYPE(TDMT_MND_GET_MACHINE, "get-machine", NULL, NULL)
+  TD_DEF_MSG_TYPE(TDMT_MND_UNUSED1, "unused", NULL, NULL)
   TD_DEF_MSG_TYPE(TDMT_MND_TMQ_DROP_TOPIC, "drop-topic", NULL, NULL)
   TD_DEF_MSG_TYPE(TDMT_MND_TMQ_SUBSCRIBE, "subscribe", SCMSubscribeReq, SCMSubscribeRsp)
   TD_DEF_MSG_TYPE(TDMT_MND_TMQ_ASK_EP, "ask-ep", SMqAskEpReq, SMqAskEpRsp)
diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index 54a57a0a66..a829f65bb2 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -1163,9 +1163,11 @@ int32_t tSerializeSStatusReq(void *buf, int32_t bufLen, SStatusReq *pReq) {
   if (tEncodeI64(&encoder, pReq->updateTime) < 0) return -1;
   if (tEncodeFloat(&encoder, pReq->numOfCores) < 0) return -1;
   if (tEncodeI32(&encoder, pReq->numOfSupportVnodes) < 0) return -1;
+  if (tEncodeI32v(&encoder, pReq->numOfDiskCfg) < 0) return -1;
   if (tEncodeI64(&encoder, pReq->memTotal) < 0) return -1;
   if (tEncodeI64(&encoder, pReq->memAvail) < 0) return -1;
   if (tEncodeCStr(&encoder, pReq->dnodeEp) < 0) return -1;
+  if (tEncodeCStr(&encoder, pReq->machineId) < 0) return -1;
 
   // cluster cfg
   if (tEncodeI32(&encoder, pReq->clusterCfg.statusInterval) < 0) return -1;
@@ -1253,9 +1255,11 @@ int32_t tDeserializeSStatusReq(void *buf, int32_t bufLen, SStatusReq *pReq) {
   if (tDecodeI64(&decoder, &pReq->updateTime) < 0) return -1;
   if (tDecodeFloat(&decoder, &pReq->numOfCores) < 0) return -1;
   if (tDecodeI32(&decoder, &pReq->numOfSupportVnodes) < 0) return -1;
+  if (tDecodeI32v(&decoder, &pReq->numOfDiskCfg) < 0) return -1;
   if (tDecodeI64(&decoder, &pReq->memTotal) < 0) return -1;
   if (tDecodeI64(&decoder, &pReq->memAvail) < 0) return -1;
   if (tDecodeCStrTo(&decoder, pReq->dnodeEp) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pReq->machineId) < 0) return -1;
 
   // cluster cfg
   if (tDecodeI32(&decoder, &pReq->clusterCfg.statusInterval) < 0) return -1;
diff --git a/source/dnode/mgmt/mgmt_dnode/inc/dmInt.h b/source/dnode/mgmt/mgmt_dnode/inc/dmInt.h
index 8e682f22c0..80502e2662 100644
--- a/source/dnode/mgmt/mgmt_dnode/inc/dmInt.h
+++ b/source/dnode/mgmt/mgmt_dnode/inc/dmInt.h
@@ -56,7 +56,6 @@ int32_t dmProcessServerRunStatus(SDnodeMgmt *pMgmt, SRpcMsg *pMsg);
 int32_t dmProcessRetrieve(SDnodeMgmt *pMgmt, SRpcMsg *pMsg);
 int32_t dmProcessGrantReq(void *pInfo, SRpcMsg *pMsg);
 int32_t dmProcessGrantNotify(void *pInfo, SRpcMsg *pMsg);
-int32_t dmProcessGetMachine(SDnodeMgmt *pMgmt, SRpcMsg *pMsg);
 
 // dmWorker.c
 int32_t dmPutNodeMsgToMgmtQueue(SDnodeMgmt *pMgmt, SRpcMsg *pMsg);
diff --git a/source/dnode/mgmt/mgmt_dnode/src/dmHandle.c b/source/dnode/mgmt/mgmt_dnode/src/dmHandle.c
index 2caf2dee1e..2ec9c51cc1 100644
--- a/source/dnode/mgmt/mgmt_dnode/src/dmHandle.c
+++ b/source/dnode/mgmt/mgmt_dnode/src/dmHandle.c
@@ -114,9 +114,15 @@ void dmSendStatusReq(SDnodeMgmt *pMgmt) {
   req.updateTime = pMgmt->pData->updateTime;
   req.numOfCores = tsNumOfCores;
   req.numOfSupportVnodes = tsNumOfSupportVnodes;
+  req.numOfDiskCfg = tsDiskCfgNum;
   req.memTotal = tsTotalMemoryKB * 1024;
   req.memAvail = req.memTotal - tsRpcQueueMemoryAllowed - 16 * 1024 * 1024;
   tstrncpy(req.dnodeEp, tsLocalEp, TSDB_EP_LEN);
+  char *machine = tGetMachineId();
+  if (machine) {
+    tstrncpy(req.machineId, machine, TSDB_MACHINE_ID_LEN + 1);
+    taosMemoryFreeClear(machine);
+  }
 
   req.clusterCfg.statusInterval = tsStatusInterval;
   req.clusterCfg.checkTime = 0;
@@ -414,33 +420,6 @@ int32_t dmProcessRetrieve(SDnodeMgmt *pMgmt, SRpcMsg *pMsg) {
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t dmProcessGetMachine(SDnodeMgmt *pMgmt, SRpcMsg *pMsg) {
-  int32_t size = TSDB_MACHINE_ID_LEN;
-  terrno = 0;
-  void *pRsp = rpcMallocCont(size);
-  if (pRsp == NULL) {
-    terrno = TSDB_CODE_OUT_OF_MEMORY;
-    dError("failed to retrieve data since %s", terrstr());
-    return -1;
-  }
-  char *machineId = grantGetMachineId();
-  if (machineId) {
-    memcpy(pRsp, machineId, TSDB_MACHINE_ID_LEN);
-    taosMemoryFreeClear(machineId);
-  } else {
-    terrno = TSDB_CODE_INVALID_DATA_FMT;
-    rpcFreeCont(pRsp);
-    pRsp = NULL;
-    size = 0;
-  }
-
-  pMsg->code = terrno;
-  pMsg->info.rsp = pRsp;
-  pMsg->info.rspLen = size;
-
-  return TSDB_CODE_SUCCESS;
-}
-
 SArray *dmGetMsgHandles() {
   int32_t code = -1;
   SArray *pArray = taosArrayInit(16, sizeof(SMgmtHandle));
@@ -463,7 +442,6 @@ SArray *dmGetMsgHandles() {
   if (dmSetMgmtHandle(pArray, TDMT_MND_GRANT, dmPutNodeMsgToMgmtQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_MND_GRANT_NOTIFY, dmPutNodeMsgToMgmtQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_MND_AUTH_RSP, dmPutNodeMsgToMgmtQueue, 0) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_MND_GET_MACHINE, dmPutNodeMsgToMgmtQueue, 0) == NULL) goto _OVER;
 
   code = 0;
 
diff --git a/source/dnode/mgmt/mgmt_dnode/src/dmWorker.c b/source/dnode/mgmt/mgmt_dnode/src/dmWorker.c
index 831d1bc10c..7ca19d7725 100644
--- a/source/dnode/mgmt/mgmt_dnode/src/dmWorker.c
+++ b/source/dnode/mgmt/mgmt_dnode/src/dmWorker.c
@@ -348,9 +348,6 @@ static void dmProcessMgmtQueue(SQueueInfo *pInfo, SRpcMsg *pMsg) {
     case TDMT_MND_GRANT_NOTIFY:
       code = dmProcessGrantNotify(NULL, pMsg);
       break;
-    case TDMT_MND_GET_MACHINE:
-      code = dmProcessGetMachine(pMgmt, pMsg);
-      break;
     default:
       terrno = TSDB_CODE_MSG_NOT_PROCESSED;
       dGError("msg:%p, not processed in mgmt queue", pMsg);
diff --git a/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c b/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
index eb5de7971b..c40ef3685c 100644
--- a/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
+++ b/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
@@ -163,8 +163,6 @@ SArray *mmGetMsgHandles() {
   if (dmSetMgmtHandle(pArray, TDMT_MND_DROP_STREAM, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_MND_PAUSE_STREAM, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_MND_RESUME_STREAM, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_MND_GRANT_RSP, mmPutMsgToReadQueue, 0) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_MND_GET_MACHINE_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
 
   if (dmSetMgmtHandle(pArray, TDMT_MND_RETRIEVE_IP_WHITE, mmPutMsgToReadQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_MND_GET_USER_WHITELIST, mmPutMsgToReadQueue, 0) == NULL) goto _OVER;
diff --git a/source/dnode/mnode/impl/inc/mndDef.h b/source/dnode/mnode/impl/inc/mndDef.h
index 67a49b26b3..1150037480 100644
--- a/source/dnode/mnode/impl/inc/mndDef.h
+++ b/source/dnode/mnode/impl/inc/mndDef.h
@@ -210,6 +210,7 @@ typedef struct {
   int32_t    numOfVnodes;
   int32_t    numOfOtherNodes;
   int32_t    numOfSupportVnodes;
+  int32_t    numOfDiskCfg;
   float      numOfCores;
   int64_t    memTotal;
   int64_t    memAvail;
diff --git a/source/dnode/mnode/impl/inc/mndInt.h b/source/dnode/mnode/impl/inc/mndInt.h
index 3c05c9e258..a6c4fbd762 100644
--- a/source/dnode/mnode/impl/inc/mndInt.h
+++ b/source/dnode/mnode/impl/inc/mndInt.h
@@ -107,7 +107,6 @@ typedef struct {
 
 typedef struct SMnode {
   int32_t        selfDnodeId;
-  int32_t        refMgmt;
   int64_t        clusterId;
   TdThread       thread;
   TdThreadRwlock lock;
diff --git a/source/dnode/mnode/impl/src/mndDnode.c b/source/dnode/mnode/impl/src/mndDnode.c
index b15017ff37..2da8b7bc2e 100644
--- a/source/dnode/mnode/impl/src/mndDnode.c
+++ b/source/dnode/mnode/impl/src/mndDnode.c
@@ -58,13 +58,6 @@ enum {
   DND_DROP,
 };
 
-typedef struct {
-  SMnodeRefInfo refInfo;
-  int64_t       refId;
-  tsem_t        sem;
-  char          machineId[TSDB_MACHINE_ID_LEN + 1];
-} SMachineInfo;
-
 static int32_t  mndCreateDefaultDnode(SMnode *pMnode);
 static SSdbRaw *mndDnodeActionEncode(SDnodeObj *pDnode);
 static SSdbRow *mndDnodeActionDecode(SSdbRaw *pRaw);
@@ -78,7 +71,6 @@ static int32_t mndProcessCreateDnodeReq(SRpcMsg *pReq);
 static int32_t mndProcessDropDnodeReq(SRpcMsg *pReq);
 static int32_t mndProcessConfigDnodeReq(SRpcMsg *pReq);
 static int32_t mndProcessConfigDnodeRsp(SRpcMsg *pRsp);
-static int32_t mndProcessGetMachineRsp(SRpcMsg *pRsp);
 static int32_t mndProcessStatusReq(SRpcMsg *pReq);
 static int32_t mndProcessNotifyReq(SRpcMsg *pReq);
 static int32_t mndProcessRestoreDnodeReq(SRpcMsg *pReq);
@@ -112,7 +104,6 @@ int32_t mndInitDnode(SMnode *pMnode) {
   mndSetMsgHandle(pMnode, TDMT_MND_DROP_DNODE, mndProcessDropDnodeReq);
   mndSetMsgHandle(pMnode, TDMT_MND_CONFIG_DNODE, mndProcessConfigDnodeReq);
   mndSetMsgHandle(pMnode, TDMT_DND_CONFIG_DNODE_RSP, mndProcessConfigDnodeRsp);
-  mndSetMsgHandle(pMnode, TDMT_MND_GET_MACHINE_RSP, mndProcessGetMachineRsp);
   mndSetMsgHandle(pMnode, TDMT_MND_STATUS, mndProcessStatusReq);
   mndSetMsgHandle(pMnode, TDMT_MND_NOTIFY, mndProcessNotifyReq);
   mndSetMsgHandle(pMnode, TDMT_MND_DNODE_LIST, mndProcessDnodeListReq);
@@ -145,7 +136,7 @@ static int32_t mndCreateDefaultDnode(SMnode *pMnode) {
   tstrncpy(dnodeObj.fqdn, tsLocalFqdn, TSDB_FQDN_LEN);
   dnodeObj.fqdn[TSDB_FQDN_LEN - 1] = 0;
   snprintf(dnodeObj.ep, TSDB_EP_LEN - 1, "%s:%u", tsLocalFqdn, tsServerPort);
-  char *machineId = grantGetMachineId();
+  char *machineId = tGetMachineId();
   if (machineId) {
     memcpy(dnodeObj.machineId, machineId, TSDB_MACHINE_ID_LEN);
     taosMemoryFreeClear(machineId);
@@ -677,8 +668,12 @@ static int32_t mndProcessStatusReq(SRpcMsg *pReq) {
     pDnode->rebootTime = statusReq.rebootTime;
     pDnode->numOfCores = statusReq.numOfCores;
     pDnode->numOfSupportVnodes = statusReq.numOfSupportVnodes;
+    pDnode->numOfDiskCfg = statusReq.numOfDiskCfg;
     pDnode->memAvail = statusReq.memAvail;
     pDnode->memTotal = statusReq.memTotal;
+    if (pDnode->machineId[0] == 0 && statusReq.machineId[0] != 0) {
+      tstrncpy(pDnode->machineId, statusReq.machineId, TSDB_MACHINE_ID_LEN + 1);
+    }
 
     SStatusRsp statusRsp = {0};
     statusRsp.statusSeq++;
@@ -748,25 +743,10 @@ _OVER:
   return code;
 }
 
-static int32_t mndSendGetMachineToDnode(SMnode *pMnode, SDnodeObj *pObj, SMachineInfo *pInfo) {
-  SRpcMsg rpcMsg = {.pCont = NULL, .contLen = 0, .msgType = TDMT_MND_GET_MACHINE, .info.ahandle = (void*)pInfo->refId};
-  SEpSet  epSet = {.numOfEps = 1};
-  strncpy(epSet.eps[0].fqdn, pObj->fqdn, TSDB_FQDN_LEN);
-  epSet.eps[0].port = pObj->port;
-  return tmsgSendReq(&epSet, &rpcMsg);
-}
-
-static void mndDestroyMachineInfo(void *pInfo) {
-  if (pInfo) {
-    tsem_destroy(&((SMachineInfo *)pInfo)->sem);
-  }
-}
-
 static int32_t mndCreateDnode(SMnode *pMnode, SRpcMsg *pReq, SCreateDnodeReq *pCreate) {
   int32_t       code = -1;
   SSdbRaw      *pRaw = NULL;
   STrans       *pTrans = NULL;
-  SMachineInfo *pInfo = NULL;
 
   SDnodeObj dnodeObj = {0};
   dnodeObj.id = sdbGetMaxId(pMnode->pSdb, SDB_DNODE);
@@ -775,29 +755,6 @@ static int32_t mndCreateDnode(SMnode *pMnode, SRpcMsg *pReq, SCreateDnodeReq *pC
   dnodeObj.port = pCreate->port;
   tstrncpy(dnodeObj.fqdn, pCreate->fqdn, TSDB_FQDN_LEN);
   snprintf(dnodeObj.ep, TSDB_EP_LEN - 1, "%s:%u", pCreate->fqdn, pCreate->port);
-  #if 0
-  if (!(pInfo = taosMemoryCalloc(1, sizeof(*pInfo)))) {
-    terrno = TSDB_CODE_OUT_OF_MEMORY;
-    goto _OVER;
-  }
-  pInfo->refInfo.freeFp = mndDestroyMachineInfo;
-  tsem_init(&pInfo->sem, 0, 0);
-  if((pInfo->refId = taosAddRef(pMnode->refMgmt, pInfo)) < 0) {
-    goto _OVER;
-  }
-  if ((terrno = mndSendGetMachineToDnode(pMnode, &dnodeObj, pInfo)) != 0) {
-    goto _OVER;
-  }
-  if (tsem_timewait(&pInfo->sem, 1000) < 0) {
-    terrno = TSDB_CODE_DNODE_OFFLINE;
-    goto _OVER;
-  }
-  if (strlen(pInfo->machineId) == TSDB_MACHINE_ID_LEN) {
-    memcpy(dnodeObj.machineId, pInfo->machineId, TSDB_MACHINE_ID_LEN);
-  } else {
-    mWarn("Invalid machineId:%s to create dnode:%s", pInfo->machineId, dnodeObj.fqdn);
-  }
-  #endif
   pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_CONFLICT_GLOBAL, pReq, "create-dnode");
   if (pTrans == NULL) goto _OVER;
   mInfo("trans:%d, used to create dnode:%s", pTrans->id, dnodeObj.ep);
@@ -815,9 +772,6 @@ static int32_t mndCreateDnode(SMnode *pMnode, SRpcMsg *pReq, SCreateDnodeReq *pC
 _OVER:
   mndTransDrop(pTrans);
   sdbFreeRaw(pRaw);
-  if (pInfo) {
-    taosRemoveRef(pMnode->refMgmt, pInfo->refId);
-  }
   return code;
 }
 
@@ -1318,27 +1272,6 @@ static int32_t mndProcessConfigDnodeRsp(SRpcMsg *pRsp) {
   return 0;
 }
 
-static int32_t mndProcessGetMachineRsp(SRpcMsg *pRsp) {
-  if (pRsp->code != 0 || pRsp->contLen != TSDB_MACHINE_ID_LEN || pRsp->pCont == NULL) {
-    mError("failed to get machine since %s", tstrerror(pRsp->code ? pRsp->code : TSDB_CODE_INVALID_MSG));
-    return -1;
-  }
-
-  SMnode *pMnode = pRsp->info.node;
-  int64_t refId = (int64_t)pRsp->info.ahandle;
-
-  if (pMnode) {
-    SMachineInfo *pInfo = taosAcquireRef(pMnode->refMgmt, refId);
-    if (pInfo) {
-      memcpy(pInfo->machineId, pRsp->pCont, TSDB_MACHINE_ID_LEN);
-      tsem_post(&pInfo->sem);
-      taosReleaseRef(pMnode->refMgmt, refId);
-    }
-  }
-
-  return 0;
-}
-
 static int32_t mndRetrieveConfigs(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows) {
   SMnode *pMnode = pReq->info.node;
   int32_t totalRows = 0;
diff --git a/source/dnode/mnode/impl/src/mndGrant.c b/source/dnode/mnode/impl/src/mndGrant.c
index 75314f6772..c0597c445b 100644
--- a/source/dnode/mnode/impl/src/mndGrant.c
+++ b/source/dnode/mnode/impl/src/mndGrant.c
@@ -75,7 +75,7 @@ void    grantParseParameter() { mError("can't parsed parameter k"); }
 void    grantReset(SMnode *pMnode, EGrantType grant, uint64_t value) {}
 void    grantAdd(EGrantType grant, uint64_t value) {}
 void    grantRestore(EGrantType grant, uint64_t value) {}
-char   *grantGetMachineId(){return NULL};
+char   *tGetMachineId(){return NULL};
 int32_t dmProcessGrantReq(void *pInfo, SRpcMsg *pMsg) { return TSDB_CODE_SUCCESS; }
 int32_t dmProcessGrantNotify(void *pInfo, SRpcMsg *pMsg) { return TSDB_CODE_SUCCESS; }
 
diff --git a/source/dnode/mnode/impl/src/mndMain.c b/source/dnode/mnode/impl/src/mndMain.c
index 84bf026153..aaa59aed93 100644
--- a/source/dnode/mnode/impl/src/mndMain.c
+++ b/source/dnode/mnode/impl/src/mndMain.c
@@ -193,7 +193,7 @@ static void mndPullupGrant(SMnode *pMnode) {
   if (pReq != NULL) {
     SRpcMsg rpcMsg = {
         .msgType = TDMT_MND_GRANT_HB_TIMER, .pCont = pReq, .contLen = contLen, .info.ahandle = (void *)0x9527};
-    tmsgPutToQueue(&pMnode->msgCb, READ_QUEUE, &rpcMsg);
+    tmsgPutToQueue(&pMnode->msgCb, WRITE_QUEUE, &rpcMsg);
   }
 }
 
@@ -596,14 +596,6 @@ static void mndSetOptions(SMnode *pMnode, const SMnodeOpt *pOption) {
   memcpy(pMnode->syncMgmt.nodeRoles, pOption->nodeRoles, sizeof(pOption->nodeRoles));
 }
 
-static void mndDestroyRefInfo(void *pInfo) {
-  SMnodeRefInfo *pRefInfo = pInfo;
-  if (pRefInfo && pRefInfo->freeFp) {
-    (*pRefInfo->freeFp)(pInfo);
-  }
-  taosMemoryFree(pInfo);
-}
-
 SMnode *mndOpen(const char *path, const SMnodeOpt *pOption) {
   mInfo("start to open mnode in %s", path);
 
@@ -628,16 +620,7 @@ SMnode *mndOpen(const char *path, const SMnodeOpt *pOption) {
     return NULL;
   }
 
-  int32_t code = 0;
-  if ((pMnode->refMgmt = taosOpenRef(200, mndDestroyRefInfo)) < 0) {
-    code = terrno;
-    mError("failed to open mnode since %s", terrstr());
-    mndClose(pMnode);
-    terrno = code;
-    return NULL;
-  }
-
-  code = mndCreateDir(pMnode, path);
+  int32_t code = mndCreateDir(pMnode, path);
   if (code != 0) {
     code = terrno;
     mError("failed to open mnode since %s", terrstr());
@@ -680,7 +663,6 @@ void mndClose(SMnode *pMnode) {
   if (pMnode != NULL) {
     mInfo("start to close mnode");
     mndCleanupSteps(pMnode, -1);
-    taosCloseRef(pMnode->refMgmt);
     taosMemoryFreeClear(pMnode->path);
     taosMemoryFreeClear(pMnode);
     mInfo("mnode is closed");