diff --git a/include/os/osEnv.h b/include/os/osEnv.h
index 1426ba87f652552c9cf85cc98777654494648cb1..ebf4c360dd7c5c65672d70248b060960517a5ff4 100644
--- a/include/os/osEnv.h
+++ b/include/os/osEnv.h
@@ -45,6 +45,7 @@ extern SDiskSpace tsTempSpace;
 
 void osInit();
 void osUpdate();
+void osCleanup();
 bool osLogSpaceAvailable();
 void osSetTimezone(const char *timezone);
 
diff --git a/source/dnode/mgmt/container/src/dndInt.c b/source/dnode/mgmt/container/src/dndInt.c
index 17757a75d5b7b8a2755d914ef1243f65466275bf..1306c862bc90d8db473af6b2ba67cb0012232f77 100644
--- a/source/dnode/mgmt/container/src/dndInt.c
+++ b/source/dnode/mgmt/container/src/dndInt.c
@@ -19,6 +19,7 @@
 static int8_t once = DND_ENV_INIT;
 
 int32_t dndInit() {
+  dDebug("start to init dnode env");
   if (atomic_val_compare_exchange_8(&once, DND_ENV_INIT, DND_ENV_READY) != DND_ENV_INIT) {
     terrno = TSDB_CODE_REPEAT_INIT;
     dError("failed to init dnode env since %s", terrstr());
@@ -51,6 +52,7 @@ int32_t dndInit() {
 }
 
 void dndCleanup() {
+  dDebug("start to cleanup dnode env");
   if (atomic_val_compare_exchange_8(&once, DND_ENV_READY, DND_ENV_CLEANUP) != DND_ENV_READY) {
     dError("dnode env is already cleaned up");
     return;
@@ -121,5 +123,6 @@ TdFilePtr dndCheckRunning(char *dataDir) {
     return NULL;
   }
 
+  dDebug("file:%s is locked", filepath);
   return pFile;
 }
diff --git a/source/dnode/mgmt/container/src/dndNode.c b/source/dnode/mgmt/container/src/dndNode.c
index 6b41f4b5d2d89d8b7af0aef9200c0b66ded1ef1e..db8785662dfab4f5d38c5849b5f9ff070a82d41c 100644
--- a/source/dnode/mgmt/container/src/dndNode.c
+++ b/source/dnode/mgmt/container/src/dndNode.c
@@ -45,7 +45,11 @@ static bool dndRequireNode(SMgmtWrapper *pMgmt) {
 
 static int32_t dndOpenNode(SMgmtWrapper *pWrapper) { return (*pWrapper->fp.openFp)(pWrapper); }
 
-static void dndCloseNode(SMgmtWrapper *pWrapper) { (*pWrapper->fp.closeFp)(pWrapper); }
+static void dndCloseNode(SMgmtWrapper *pWrapper) {
+  if (pWrapper->required) {
+    (*pWrapper->fp.closeFp)(pWrapper);
+  }
+}
 
 static void dndClearMemory(SDnode *pDnode) {
   for (ENodeType n = 0; n < NODE_MAX; ++n) {
@@ -243,7 +247,7 @@ int32_t dndRun(SDnode *pDnode) {
 
   while (1) {
     if (pDnode->event == DND_EVENT_STOP) {
-      dInfo("dnode object receive stop event");
+      dInfo("dnode is about to stop");
       break;
     }
     taosMsleep(100);
@@ -302,8 +306,7 @@ void dndProcessRpcMsg(SMgmtWrapper *pWrapper, SRpcMsg *pRpc, SEpSet *pEpSet) {
     goto _OVER;
   }
 
-  dTrace("msg:%p, is created, app:%p RPC:%p user:%s, processd by %s", pMsg, pRpc->ahandle, pRpc->handle, pMsg->user,
-         pWrapper->name);
+  dTrace("msg:%p, is created, user:%s", pMsg, pMsg->user);
   code = (*msgFp)(pWrapper, pMsg);
 
 _OVER:
diff --git a/source/dnode/mgmt/container/src/dndTransport.c b/source/dnode/mgmt/container/src/dndTransport.c
index 81b6818fbc9894772af2b95d285a7b531cf9ff7c..b6db12d62da8d20f63067b691863cc6ddc21e419 100644
--- a/source/dnode/mgmt/container/src/dndTransport.c
+++ b/source/dnode/mgmt/container/src/dndTransport.c
@@ -30,18 +30,18 @@ static void dndProcessResponse(void *parent, SRpcMsg *pRsp, SEpSet *pEpSet) {
 
   if (dndGetStatus(pDnode) == DND_STAT_STOPPED) {
     if (pRsp == NULL || pRsp->pCont == NULL) return;
-    dTrace("RPC %p, rsp:%s ignored since dnode exiting, app:%p", pRsp->handle, TMSG_INFO(msgType), pRsp->ahandle);
+    dTrace("rsp:%s ignored since dnode exiting, app:%p", TMSG_INFO(msgType), pRsp->ahandle);
     rpcFreeCont(pRsp->pCont);
     return;
   }
 
   SMsgHandle *pHandle = &pMgmt->msgHandles[TMSG_INDEX(msgType)];
   if (pHandle->msgFp != NULL) {
-    dTrace("RPC %p, rsp:%s will be processed by %s, code:0x%x app:%p", pRsp->handle, TMSG_INFO(msgType),
-           pHandle->pWrapper->name, pRsp->code & 0XFFFF, pRsp->ahandle);
+    dTrace("rsp:%s will be processed by %s, code:0x%x app:%p", TMSG_INFO(msgType), pHandle->pWrapper->name,
+           pRsp->code & 0XFFFF, pRsp->ahandle);
     dndProcessRpcMsg(pHandle->pWrapper, pRsp, pEpSet);
   } else {
-    dError("RPC %p, rsp:%s not processed, app:%p", pRsp->handle, TMSG_INFO(msgType), pRsp->ahandle);
+    dError("rsp:%s not processed, app:%p", TMSG_INFO(msgType), pRsp->ahandle);
     rpcFreeCont(pRsp->pCont);
   }
 }
@@ -258,12 +258,13 @@ int32_t dndInitMsgHandle(SDnode *pDnode) {
 
       SMsgHandle *pHandle = &pMgmt->msgHandles[msgIndex];
       if (pHandle->msgFp != NULL) {
-        dError("msg:%s, has multiple process nodes, prev node:%s, curr node:%s", tMsgInfo[msgIndex],
+        dError("msg:%s has multiple process nodes, prev node:%s, curr node:%s", tMsgInfo[msgIndex],
                pHandle->pWrapper->name, pWrapper->name);
         return -1;
       } else {
-        dDebug("msg:%s, will be processed by node:%s", tMsgInfo[msgIndex], pWrapper->name);
+        dTrace("msg:%s will be processed by %s", tMsgInfo[msgIndex], pWrapper->name);
         pHandle->msgFp = msgFp;
+        pHandle->pWrapper = pWrapper;
       }
     }
   }
diff --git a/source/dnode/mgmt/dnode/src/dmFile.c b/source/dnode/mgmt/dnode/src/dmFile.c
index 43bbcfd9467d6206d9cfc5f16e3290b576c79edf..0794824ac6bfde8cbec252c6cb32b56c9436e2be 100644
--- a/source/dnode/mgmt/dnode/src/dmFile.c
+++ b/source/dnode/mgmt/dnode/src/dmFile.c
@@ -16,9 +16,9 @@
 #define _DEFAULT_SOURCE
 #include "dmFile.h"
 
-static void dndPrintDnodes(SDnodeMgmt *pMgmt);
-static bool dndIsEpChanged(SDnodeMgmt *pMgmt, const char *ep);
-static void dndResetDnodes(SDnodeMgmt *pMgmt, SArray *pDnodeEps);
+static void dmPrintDnodes(SDnodeMgmt *pMgmt);
+static bool dmIsEpChanged(SDnodeMgmt *pMgmt, const char *ep);
+static void dmResetDnodes(SDnodeMgmt *pMgmt, SArray *pDnodeEps);
 
 int32_t dmReadFile(SDnodeMgmt *pMgmt) {
   int32_t   code = TSDB_CODE_DND_DNODE_READ_FILE_ERROR;
@@ -130,14 +130,14 @@ int32_t dmReadFile(SDnodeMgmt *pMgmt) {
 
   code = 0;
   dInfo("succcessed to read file %s", file);
-  dndPrintDnodes(pMgmt);
+  dmPrintDnodes(pMgmt);
 
 PRASE_DNODE_OVER:
   if (content != NULL) free(content);
   if (root != NULL) cJSON_Delete(root);
   if (pFile != NULL) taosCloseFile(&pFile);
 
-  if (dndIsEpChanged(pMgmt, pMgmt->pDnode->cfg.localEp)) {
+  if (dmIsEpChanged(pMgmt, pMgmt->pDnode->cfg.localEp)) {
     dError("localEp %s different with %s and need reconfigured", pMgmt->pDnode->cfg.localEp, file);
     return -1;
   }
@@ -149,7 +149,7 @@ PRASE_DNODE_OVER:
     taosArrayPush(pMgmt->pDnodeEps, &dnodeEp);
   }
 
-  dndResetDnodes(pMgmt, pMgmt->pDnodeEps);
+  dmResetDnodes(pMgmt, pMgmt->pDnodeEps);
 
   terrno = 0;
   return 0;
@@ -218,12 +218,12 @@ void dmUpdateDnodeEps(SDnodeMgmt *pMgmt, SArray *pDnodeEps) {
 
   int32_t numOfEpsOld = (int32_t)taosArrayGetSize(pMgmt->pDnodeEps);
   if (numOfEps != numOfEpsOld) {
-    dndResetDnodes(pMgmt, pDnodeEps);
+    dmResetDnodes(pMgmt, pDnodeEps);
     dmWriteFile(pMgmt);
   } else {
     int32_t size = numOfEps * sizeof(SDnodeEp);
     if (memcmp(pMgmt->pDnodeEps->pData, pDnodeEps->pData, size) != 0) {
-      dndResetDnodes(pMgmt, pDnodeEps);
+      dmResetDnodes(pMgmt, pDnodeEps);
       dmWriteFile(pMgmt);
     }
   }
@@ -231,7 +231,7 @@ void dmUpdateDnodeEps(SDnodeMgmt *pMgmt, SArray *pDnodeEps) {
   taosWUnLockLatch(&pMgmt->latch);
 }
 
-static void dndResetDnodes(SDnodeMgmt *pMgmt, SArray *pDnodeEps) {
+static void dmResetDnodes(SDnodeMgmt *pMgmt, SArray *pDnodeEps) {
   if (pMgmt->pDnodeEps != pDnodeEps) {
     SArray *tmp = pMgmt->pDnodeEps;
     pMgmt->pDnodeEps = taosArrayDup(pDnodeEps);
@@ -259,10 +259,10 @@ static void dndResetDnodes(SDnodeMgmt *pMgmt, SArray *pDnodeEps) {
     taosHashPut(pMgmt->dnodeHash, &pDnodeEp->id, sizeof(int32_t), pDnodeEp, sizeof(SDnodeEp));
   }
 
-  dndPrintDnodes(pMgmt);
+  dmPrintDnodes(pMgmt);
 }
 
-static void dndPrintDnodes(SDnodeMgmt *pMgmt) {
+static void dmPrintDnodes(SDnodeMgmt *pMgmt) {
   int32_t numOfEps = (int32_t)taosArrayGetSize(pMgmt->pDnodeEps);
   dDebug("print dnode ep list, num:%d", numOfEps);
   for (int32_t i = 0; i < numOfEps; i++) {
@@ -271,7 +271,7 @@ static void dndPrintDnodes(SDnodeMgmt *pMgmt) {
   }
 }
 
-static bool dndIsEpChanged(SDnodeMgmt *pMgmt, const char *ep) {
+static bool dmIsEpChanged(SDnodeMgmt *pMgmt, const char *ep) {
   bool changed = false;
   taosRLockLatch(&pMgmt->latch);
 
diff --git a/source/dnode/mgmt/dnode/src/dmInt.c b/source/dnode/mgmt/dnode/src/dmInt.c
index 092280345ebc2a9cd0ba21c4706949257a505a51..27d4c5a3f9fe0ce9c487a3084dcdc2411ed77b8e 100644
--- a/source/dnode/mgmt/dnode/src/dmInt.c
+++ b/source/dnode/mgmt/dnode/src/dmInt.c
@@ -141,11 +141,11 @@ int32_t dmInit(SMgmtWrapper *pWrapper) {
   }
 
   pWrapper->pMgmt = pMgmt;
+  dInfo("dnode-mgmt is initialized");
+
   dndSetStatus(pDnode, DND_STAT_RUNNING);
   dmSendStatusReq(pMgmt);
   dndReportStartup(pDnode, "TDengine", "initialized successfully");
-
-  dInfo("dnode-mgmt is initialized");
   return 0;
 }
 
diff --git a/source/dnode/mgmt/dnode/src/dmMsg.c b/source/dnode/mgmt/dnode/src/dmMsg.c
index d7b75545aa73b08926173117c8b8e69a8c2c27c4..be70a4210120115ec0c46fa9ec14b9df170afebf 100644
--- a/source/dnode/mgmt/dnode/src/dmMsg.c
+++ b/source/dnode/mgmt/dnode/src/dmMsg.c
@@ -54,11 +54,11 @@ void dmSendStatusReq(SDnodeMgmt *pMgmt) {
   SRpcMsg rpcMsg = {.pCont = pHead, .contLen = contLen, .msgType = TDMT_MND_STATUS, .ahandle = (void *)9527};
   pMgmt->statusSent = 1;
 
-  dTrace("pDnode:%p, send status req to mnode", pDnode);
+  dTrace("send status req to mnode, ahandle:%p", rpcMsg.ahandle);
   dndSendReqToMnode(pMgmt->pDnode, &rpcMsg);
 }
 
-static void dndUpdateDnodeCfg(SDnodeMgmt *pMgmt, SDnodeCfg *pCfg) {
+static void dmUpdateDnodeCfg(SDnodeMgmt *pMgmt, SDnodeCfg *pCfg) {
   if (pMgmt->dnodeId == 0) {
     dInfo("set dnodeId:%d clusterId:%" PRId64, pCfg->dnodeId, pCfg->clusterId);
     taosWLockLatch(&pMgmt->latch);
@@ -70,7 +70,7 @@ static void dndUpdateDnodeCfg(SDnodeMgmt *pMgmt, SDnodeCfg *pCfg) {
 }
 
 void dmProcessStatusRsp(SDnode *pDnode, SRpcMsg *pRsp) {
-  SDnodeMgmt *pMgmt = dndGetWrapper(pDnode, MNODE)->pMgmt;
+  SDnodeMgmt *pMgmt = dndGetWrapper(pDnode, DNODE)->pMgmt;
 
   if (pRsp->code != TSDB_CODE_SUCCESS) {
     if (pRsp->code == TSDB_CODE_MND_DNODE_NOT_EXIST && !pMgmt->dropped && pMgmt->dnodeId > 0) {
@@ -83,7 +83,7 @@ void dmProcessStatusRsp(SDnode *pDnode, SRpcMsg *pRsp) {
     if (pRsp->pCont != NULL && pRsp->contLen != 0 &&
         tDeserializeSStatusRsp(pRsp->pCont, pRsp->contLen, &statusRsp) == 0) {
       pMgmt->dver = statusRsp.dver;
-      dndUpdateDnodeCfg(pMgmt, &statusRsp.dnodeCfg);
+      dmUpdateDnodeCfg(pMgmt, &statusRsp.dnodeCfg);
       dmUpdateDnodeEps(pMgmt, statusRsp.pDnodeEps);
     }
     taosArrayDestroy(statusRsp.pDnodeEps);
diff --git a/source/dnode/mgmt/dnode/src/dmWorker.c b/source/dnode/mgmt/dnode/src/dmWorker.c
index 80acec22624b26fdf0d2fac2775817117028a4ae..7747efe6042b408ed23aac6d79c05d2e1518c18d 100644
--- a/source/dnode/mgmt/dnode/src/dmWorker.c
+++ b/source/dnode/mgmt/dnode/src/dmWorker.c
@@ -23,7 +23,7 @@
 #include "smInt.h"
 #include "vmInt.h"
 
-static void *dnodeThreadRoutine(void *param) {
+static void *dmThreadRoutine(void *param) {
   SDnodeMgmt *pMgmt = param;
   SDnode     *pDnode = pMgmt->pDnode;
   int64_t     lastStatusTime = taosGetTimestampMs();
@@ -54,8 +54,10 @@ static void *dnodeThreadRoutine(void *param) {
   }
 }
 
-static void dndProcessMgmtQueue(SDnode *pDnode, SRpcMsg *pMsg) {
-  int32_t code = 0;
+static void dmProcessMgmtQueue(SDnode *pDnode, SNodeMsg *pNodeMsg) {
+  int32_t  code = 0;
+  SRpcMsg *pMsg = &pNodeMsg->rpcMsg;
+  dTrace("msg:%p, will be processed in mgmt queue", pNodeMsg);
 
   switch (pMsg->msgType) {
     case TDMT_DND_CREATE_MNODE:
@@ -127,21 +129,23 @@ static void dndProcessMgmtQueue(SDnode *pDnode, SRpcMsg *pMsg) {
 
   rpcFreeCont(pMsg->pCont);
   pMsg->pCont = NULL;
-  taosFreeQitem(pMsg);
+  taosFreeQitem(pNodeMsg);
 }
 
 int32_t dmStartWorker(SDnodeMgmt *pMgmt) {
-  if (dndInitWorker(pMgmt->pDnode, &pMgmt->mgmtWorker, DND_WORKER_SINGLE, "dnode-mgmt", 1, 1, dndProcessMgmtQueue) != 0) {
+  if (dndInitWorker(pMgmt->pDnode, &pMgmt->mgmtWorker, DND_WORKER_SINGLE, "dnode-mgmt", 1, 1, dmProcessMgmtQueue) !=
+      0) {
     dError("failed to start dnode mgmt worker since %s", terrstr());
     return -1;
   }
 
-  if (dndInitWorker(pMgmt->pDnode, &pMgmt->statusWorker, DND_WORKER_SINGLE, "dnode-status", 1, 1, dndProcessMgmtQueue) != 0) {
+  if (dndInitWorker(pMgmt->pDnode, &pMgmt->statusWorker, DND_WORKER_SINGLE, "dnode-status", 1, 1,
+                    dmProcessMgmtQueue) != 0) {
     dError("failed to start dnode mgmt worker since %s", terrstr());
     return -1;
   }
 
-  pMgmt->threadId = taosCreateThread(dnodeThreadRoutine, pMgmt);
+  pMgmt->threadId = taosCreateThread(dmThreadRoutine, pMgmt);
   if (pMgmt->threadId == NULL) {
     dError("failed to init dnode thread");
     terrno = TSDB_CODE_OUT_OF_MEMORY;
@@ -169,5 +173,6 @@ int32_t dmProcessMgmtMsg(SMgmtWrapper *pWrapper, SNodeMsg *pMsg) {
     pWorker = &pMgmt->statusWorker;
   }
 
+  dTrace("msg:%p, will be written to worker %s", pMsg, pWorker->name);
   return dndWriteMsgToWorker(pWorker, pMsg, sizeof(SNodeMsg));
 }
\ No newline at end of file
diff --git a/source/dnode/mgmt/main/src/dndMain.c b/source/dnode/mgmt/main/src/dndMain.c
index 9351f60e3d8db651f9d8adcb323376b753f80173..370e9aa7b59a0d5be5115357147b31087f802560 100644
--- a/source/dnode/mgmt/main/src/dndMain.c
+++ b/source/dnode/mgmt/main/src/dndMain.c
@@ -85,6 +85,7 @@ static int32_t dndRunDnode() {
   int32_t code = dndRun(pDnode);
   dInfo("start shutting down the TDengine service");
 
+  global.pDnode = NULL;
   dndClose(pDnode);
   dndCleanup();
   taosCloseLog();
diff --git a/source/os/src/osEnv.c b/source/os/src/osEnv.c
index 63fa60021752686ea80a591160c6b7e2f65ae2a8..61b2593bc6c3115f0d5f89c92e593082ad05fcf2 100644
--- a/source/os/src/osEnv.c
+++ b/source/os/src/osEnv.c
@@ -101,6 +101,8 @@ void osUpdate() {
   }
 }
 
+void osCleanup() {}
+
 bool osLogSpaceAvailable() { return tsLogSpace.reserved <= tsLogSpace.size.avail; }
 
 void osSetTimezone(const char *timezone) { taosSetSystemTimezone(tsTimezone, tsTimezone, &tsDaylight); }