diff --git a/source/dnode/mgmt/dm/src/dmInt.c b/source/dnode/mgmt/dm/src/dmInt.c
index 3c5f394d5e..f817554f7c 100644
--- a/source/dnode/mgmt/dm/src/dmInt.c
+++ b/source/dnode/mgmt/dm/src/dmInt.c
@@ -74,7 +74,7 @@ void dmSendRedirectRsp(SDnodeMgmt *pMgmt, const SRpcMsg *pReq) {
 }
 
 static int32_t dmStart(SMgmtWrapper *pWrapper) {
-  dDebug("dnode-mgmt start to run");
+  dDebug("dnode-mgmt starts running");
   return dmStartThread(pWrapper->pMgmt);
 }
 
diff --git a/source/dnode/mgmt/dm/src/dmMsg.c b/source/dnode/mgmt/dm/src/dmMsg.c
index b301ef478b..3795cffbfa 100644
--- a/source/dnode/mgmt/dm/src/dmMsg.c
+++ b/source/dnode/mgmt/dm/src/dmMsg.c
@@ -53,7 +53,7 @@ void dmSendStatusReq(SDnodeMgmt *pMgmt) {
   tSerializeSStatusReq(pHead, contLen, &req);
   taosArrayDestroy(req.pVloads);
 
-  SRpcMsg rpcMsg = {.pCont = pHead, .contLen = contLen, .msgType = TDMT_MND_STATUS, .ahandle = (void *)9527};
+  SRpcMsg rpcMsg = {.pCont = pHead, .contLen = contLen, .msgType = TDMT_MND_STATUS, .ahandle = (void *)0x9527};
   pMgmt->statusSent = 1;
 
   dTrace("send req:%s to mnode, app:%p", TMSG_INFO(rpcMsg.msgType), rpcMsg.ahandle);
diff --git a/source/dnode/mgmt/main/exe/dndMain.c b/source/dnode/mgmt/main/exe/dndMain.c
index 1bfa23c022..61b480990d 100644
--- a/source/dnode/mgmt/main/exe/dndMain.c
+++ b/source/dnode/mgmt/main/exe/dndMain.c
@@ -30,7 +30,7 @@ static struct {
 } global = {0};
 
 static void dndStopDnode(int signum, void *info, void *ctx) {
-  dInfo("signal:%d is received", signum);
+  dInfo("system signal:%d received", signum);
   SDnode *pDnode = atomic_val_compare_exchange_ptr(&global.pDnode, 0, global.pDnode);
   if (pDnode != NULL) {
     dndHandleEvent(pDnode, DND_EVENT_STOP);
@@ -38,8 +38,10 @@ static void dndStopDnode(int signum, void *info, void *ctx) {
 }
 
 static void dndHandleChild(int signum, void *info, void *ctx) {
-  dInfo("signal:%d is received", signum);
-  dndHandleEvent(global.pDnode, DND_EVENT_CHILD);
+  dInfo("sigchild received");
+  if (global.pDnode != NULL) {
+    dndHandleEvent(global.pDnode, DND_EVENT_CHILD);
+  }
 }
 
 static void dndSetSignalHandle() {
@@ -50,7 +52,7 @@ static void dndSetSignalHandle() {
   taosSetSignal(SIGBREAK, dndStopDnode);
 
   if (!tsMultiProcess) {
-  } else if (global.ntype == DNODE) {
+  } else if (global.ntype == DNODE || global.ntype == NODE_MAX) {
     taosSetSignal(SIGCHLD, dndHandleChild);
   } else {
     taosKillChildOnParentStopped();
@@ -74,14 +76,14 @@ static int32_t dndParseArgs(int32_t argc, char const *argv[]) {
       tstrncpy(global.apolloUrl, argv[++i], PATH_MAX);
     } else if (strcmp(argv[i], "-e") == 0) {
       tstrncpy(global.envFile, argv[++i], PATH_MAX);
-    } else if (strcmp(argv[i], "-k") == 0) {
-      global.generateGrant = true;
     } else if (strcmp(argv[i], "-n") == 0) {
       global.ntype = atoi(argv[++i]);
       if (global.ntype <= DNODE || global.ntype > NODE_MAX) {
         printf("'-n' range is [1-5], default is 0\n");
         return -1;
       }
+    } else if (strcmp(argv[i], "-k") == 0) {
+      global.generateGrant = true;
     } else if (strcmp(argv[i], "-C") == 0) {
       global.dumpConfig = true;
     } else if (strcmp(argv[i], "-V") == 0) {
@@ -139,7 +141,7 @@ static int32_t dndInitLog() {
 
 static void dndSetProcInfo(int32_t argc, char **argv) {
   taosSetProcPath(argc, argv);
-  if (global.ntype != DNODE) {
+  if (global.ntype != DNODE && global.ntype != NODE_MAX) {
     const char *name = dndNodeProcStr(global.ntype);
     taosSetProcName(argc, argv, name);
   }
@@ -147,14 +149,14 @@ static void dndSetProcInfo(int32_t argc, char **argv) {
 
 static int32_t dndRunDnode() {
   if (dndInit() != 0) {
-    dError("failed to initialize environment since %s", terrstr());
+    dError("failed to init environment since %s", terrstr());
     return -1;
   }
 
   SDnodeOpt option = dndGetOpt();
   SDnode   *pDnode = dndCreate(&option);
   if (pDnode == NULL) {
-    dError("failed to to create dnode object since %s", terrstr());
+    dError("failed to to create dnode since %s", terrstr());
     return -1;
   } else {
     global.pDnode = pDnode;
@@ -184,7 +186,6 @@ int main(int argc, char const *argv[]) {
     return -1;
   }
 
-  dndSetProcInfo(argc, (char **)argv);
   if (global.generateGrant) {
     dndGenerateGrant();
     return 0;
@@ -212,5 +213,6 @@ int main(int argc, char const *argv[]) {
     return 0;
   }
 
+  dndSetProcInfo(argc, (char **)argv);
   return dndRunDnode();
 }
diff --git a/source/dnode/mgmt/main/inc/dnd.h b/source/dnode/mgmt/main/inc/dnd.h
index 7e87d26af4..b9c760c980 100644
--- a/source/dnode/mgmt/main/inc/dnd.h
+++ b/source/dnode/mgmt/main/inc/dnd.h
@@ -136,6 +136,7 @@ typedef struct SDnode {
 
 const char *dndNodeLogStr(ENodeType ntype);
 const char *dndNodeProcStr(ENodeType ntype);
+const char *dndEventStr(EDndEvent ev);
 EDndStatus  dndGetStatus(SDnode *pDnode);
 void        dndSetStatus(SDnode *pDnode, EDndStatus stat);
 void        dndSetMsgHandle(SMgmtWrapper *pWrapper, tmsg_t msgType, NodeMsgFp nodeMsgFp, int8_t vgId);
diff --git a/source/dnode/mgmt/main/src/dndExec.c b/source/dnode/mgmt/main/src/dndExec.c
index 7b8975da88..a5cf94164b 100644
--- a/source/dnode/mgmt/main/src/dndExec.c
+++ b/source/dnode/mgmt/main/src/dndExec.c
@@ -150,7 +150,7 @@ static SProcCfg dndGenProcCfg(SMgmtWrapper *pWrapper) {
 }
 
 static int32_t dndRunInSingleProcess(SDnode *pDnode) {
-  dInfo("dnode start to run in single process");
+  dInfo("dnode run in single process");
 
   for (ENodeType n = DNODE; n < NODE_MAX; ++n) {
     SMgmtWrapper *pWrapper = &pDnode->wrappers[n];
@@ -189,7 +189,7 @@ static int32_t dndRunInSingleProcess(SDnode *pDnode) {
 }
 
 static int32_t dndRunInParentProcess(SDnode *pDnode) {
-  dInfo("dnode start to run in parent process");
+  dInfo("dnode run in parent process");
   SMgmtWrapper *pDWrapper = &pDnode->wrappers[DNODE];
   if (dndOpenNode(pDWrapper) != 0) {
     dError("node:%s, failed to start since %s", pDWrapper->name, terrstr());
@@ -275,7 +275,7 @@ static int32_t dndRunInParentProcess(SDnode *pDnode) {
 }
 
 static int32_t dndRunInChildProcess(SDnode *pDnode) {
-  dInfo("dnode start to run in child process");
+  dInfo("dnode run in child process");
   SMgmtWrapper *pWrapper = &pDnode->wrappers[pDnode->ntype];
 
   SMsgCb msgCb = dndCreateMsgcb(pWrapper);
diff --git a/source/dnode/mgmt/main/src/dndFile.c b/source/dnode/mgmt/main/src/dndFile.c
index 0214cf33d4..16db7e2958 100644
--- a/source/dnode/mgmt/main/src/dndFile.c
+++ b/source/dnode/mgmt/main/src/dndFile.c
@@ -179,7 +179,7 @@ int32_t dndReadShmFile(SDnode *pDnode) {
     }
   }
 
-  if (!tsMultiProcess || pDnode->ntype == DNODE || pDnode->ntype == DNODE) {
+  if (!tsMultiProcess || pDnode->ntype == DNODE || pDnode->ntype == NODE_MAX) {
     for (ENodeType ntype = DNODE; ntype < NODE_MAX; ++ntype) {
       SMgmtWrapper *pWrapper = &pDnode->wrappers[ntype];
       if (pWrapper->shm.id >= 0) {
@@ -197,7 +197,7 @@ int32_t dndReadShmFile(SDnode *pDnode) {
     dDebug("shmid:%d, is attached, size:%d", pWrapper->shm.id, pWrapper->shm.size);
   }
 
-  dDebug("successed to open %s", file);
+  dDebug("successed to load %s", file);
   code = 0;
 
 _OVER:
diff --git a/source/dnode/mgmt/main/src/dndMsg.c b/source/dnode/mgmt/main/src/dndMsg.c
index 3aafa5a5e3..2ab1e401c7 100644
--- a/source/dnode/mgmt/main/src/dndMsg.c
+++ b/source/dnode/mgmt/main/src/dndMsg.c
@@ -66,7 +66,7 @@ void dndProcessRpcMsg(SMgmtWrapper *pWrapper, SRpcMsg *pRpc, SEpSet *pEpSet) {
     dTrace("msg:%p, is created, handle:%p app:%p user:%s", pMsg, pRpc->handle, pRpc->ahandle, pMsg->user);
     code = (*msgFp)(pWrapper, pMsg);
   } else if (pWrapper->procType == PROC_PARENT) {
-    dTrace("msg:%p, is created and will put into child queue, handle:%p app:%p user:%s", pMsg, pRpc->handle,
+    dTrace("msg:%p, is created and put into child queue, handle:%p app:%p user:%s", pMsg, pRpc->handle,
            pRpc->ahandle, pMsg->user);
     code = taosProcPutToChildQ(pWrapper->pProc, pMsg, sizeof(SNodeMsg), pRpc->pCont, pRpc->contLen, PROC_REQ);
   } else {
diff --git a/source/dnode/mgmt/main/src/dndObj.c b/source/dnode/mgmt/main/src/dndObj.c
index ed2b669587..602ebc6b3c 100644
--- a/source/dnode/mgmt/main/src/dndObj.c
+++ b/source/dnode/mgmt/main/src/dndObj.c
@@ -61,7 +61,7 @@ static void dndClearVars(SDnode *pDnode) {
   taosMemoryFreeClear(pDnode->secondEp);
   taosMemoryFreeClear(pDnode->dataDir);
   taosMemoryFree(pDnode);
-  dDebug("dnode object memory is cleared, data:%p", pDnode);
+  dDebug("dnode memory is cleared, data:%p", pDnode);
 }
 
 SDnode *dndCreate(const SDnodeOpt *pOption) {
@@ -117,14 +117,14 @@ SDnode *dndCreate(const SDnodeOpt *pOption) {
   SMsgCb msgCb = dndCreateMsgcb(&pDnode->wrappers[0]);
   tmsgSetDefaultMsgCb(&msgCb);
 
-  dInfo("dnode object is created, data:%p", pDnode);
+  dInfo("dnode is created, data:%p", pDnode);
   code = 0;
 
 _OVER:
   if (code != 0 && pDnode) {
     dndClearVars(pDnode);
     pDnode = NULL;
-    dError("failed to create dnode object since %s", terrstr());
+    dError("failed to create dnode since %s", terrstr());
   }
 
   return pDnode;
@@ -147,11 +147,11 @@ void dndClose(SDnode *pDnode) {
   }
 
   dndClearVars(pDnode);
-  dInfo("dnode object is closed, data:%p", pDnode);
+  dInfo("dnode is closed, data:%p", pDnode);
 }
 
 void dndHandleEvent(SDnode *pDnode, EDndEvent event) {
-  dInfo("dnode object receive event %d, data:%p", event, pDnode);
+  dInfo("dnode receive %s event, data:%p", dndEventStr(event), pDnode);
   if (event == DND_EVENT_STOP) {
     pDnode->event = event;
   }
diff --git a/source/dnode/mgmt/main/src/dndStr.c b/source/dnode/mgmt/main/src/dndStr.c
index 00d8b0d6e0..8a5af68b4f 100644
--- a/source/dnode/mgmt/main/src/dndStr.c
+++ b/source/dnode/mgmt/main/src/dndStr.c
@@ -62,3 +62,16 @@ const char *dndNodeProcStr(ENodeType ntype) {
       return "taosd";
   }
 }
+
+const char *dndEventStr(EDndEvent ev) {
+  switch (ev) {
+    case DND_EVENT_START:
+      return "start";
+    case DND_EVENT_STOP:
+      return "stop";
+    case DND_EVENT_CHILD:
+      return "child";
+    default:
+      return "UNKNOWN";
+  }
+}
\ No newline at end of file
diff --git a/source/os/src/osProc.c b/source/os/src/osProc.c
index 7da25ae8c6..00ed650cbb 100644
--- a/source/os/src/osProc.c
+++ b/source/os/src/osProc.c
@@ -39,7 +39,7 @@ void taosSetProcName(int32_t argc, char **argv, const char *name) {
       argv[i][j] = 0;
     }
     if (i == 0) {
-      tstrncpy(argv[0], name, len);
+      tstrncpy(argv[0], name, len + 1);
     }
   }
 }
@@ -48,5 +48,5 @@ void taosSetProcPath(int32_t argc, char **argv) { tsProcPath = argv[0]; }
 
 bool taosProcExists(int32_t pid) {
   int32_t p = getpgid(pid);
-  return p == 0;
+  return p >= 0;
 }
diff --git a/source/util/src/tprocess.c b/source/util/src/tprocess.c
index d7e199039a..f18e7d5777 100644
--- a/source/util/src/tprocess.c
+++ b/source/util/src/tprocess.c
@@ -336,7 +336,7 @@ SProcObj *taosProcInit(const SProcCfg *pCfg) {
   pProc->parentConsumeFp = pCfg->parentConsumeFp;
   pProc->isChild = pCfg->isChild;
 
-  uDebug("proc:%s, is initialized, child:%d child queue:%p parent queue:%p", pProc->name, pProc->isChild,
+  uDebug("proc:%s, is initialized, isChild:%d child queue:%p parent queue:%p", pProc->name, pProc->isChild,
          pProc->pChildQueue, pProc->pParentQueue);
 
   return pProc;
@@ -370,7 +370,7 @@ static void taosProcThreadLoop(SProcObj *pProc) {
     freeBodyFp = pProc->parentFreeBodyFp;
   }
 
-  uDebug("proc:%s, start to get msg from queue:%p", pProc->name, pQueue);
+  uDebug("proc:%s, start to get msg from queue:%p, isChild:%d", pProc->name, pQueue, pProc->isChild);
 
   while (1) {
     int32_t numOfMsgs = taosProcQueuePop(pQueue, &pHead, &headLen, &pBody, &bodyLen, &ftype, mallocHeadFp, freeHeadFp,
@@ -399,19 +399,19 @@ int32_t taosProcRun(SProcObj *pProc) {
     return -1;
   }
 
-  uDebug("proc:%s, start to consume queue:%p", pProc->name, pProc->pChildQueue);
+  uDebug("proc:%s, start to consume queue:%p, thread:%" PRId64, pProc->name, pProc->pChildQueue, pProc->thread);
   return 0;
 }
 
 static void taosProcStop(SProcObj *pProc) {
   if (!taosCheckPthreadValid(pProc->thread)) return;
 
-  uDebug("proc:%s, start to join thread", pProc->name);
+  uDebug("proc:%s, start to join thread:%" PRId64 ", isChild:%d", pProc->name, pProc->thread, pProc->isChild);
   SProcQueue *pQueue;
   if (pProc->isChild) {
-    pQueue = pProc->pParentQueue;
-  } else {
     pQueue = pProc->pChildQueue;
+  } else {
+    pQueue = pProc->pParentQueue;
   }
   tsem_post(&pQueue->sem);
   taosThreadJoin(pProc->thread, NULL);
@@ -419,8 +419,9 @@ static void taosProcStop(SProcObj *pProc) {
 
 void taosProcCleanup(SProcObj *pProc) {
   if (pProc != NULL) {
-    uDebug("proc:%s, clean up", pProc->name);
+    uDebug("proc:%s, start to clean up", pProc->name);
     taosProcStop(pProc);
+    uDebug("proc:%s, is cleaned up", pProc->name);
     // taosProcCleanupQueue(pProc->pChildQueue);
     // taosProcCleanupQueue(pProc->pParentQueue);
     taosMemoryFree(pProc);