diff --git a/include/common/tglobal.h b/include/common/tglobal.h
index 83283cfdad048a932f9df5da0ecf82d4aeeb1280..125dc50d96d66f5d92ab084a3121a73e27a70756 100644
--- a/include/common/tglobal.h
+++ b/include/common/tglobal.h
@@ -45,7 +45,7 @@ extern bool    tsPrintAuth;
 extern int64_t tsTickPerMin[3];
 
 // multi-process
-extern bool    tsMultiProcess;
+extern int32_t tsMultiProcess;
 extern int32_t tsMnodeShmSize;
 extern int32_t tsVnodeShmSize;
 extern int32_t tsQnodeShmSize;
diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index 025ad0ca0d44597a32868bb46fe99b61fbea255f..56dea72e90045c372544995af1ce8e7f1d6e1fa6 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -38,7 +38,7 @@ bool    tsEnableSlaveQuery = true;
 bool    tsPrintAuth = false;
 
 // multi process
-bool    tsMultiProcess = false;
+int32_t tsMultiProcess = 0;
 int32_t tsMnodeShmSize = TSDB_MAX_WAL_SIZE * 2 + 128;
 int32_t tsVnodeShmSize = TSDB_MAX_WAL_SIZE * 10 + 128;
 int32_t tsQnodeShmSize = TSDB_MAX_WAL_SIZE * 4 + 128;
@@ -370,7 +370,7 @@ static int32_t taosAddServerCfg(SConfig *pCfg) {
   if (cfgAddBool(pCfg, "slaveQuery", tsEnableSlaveQuery, 0) != 0) return -1;
   if (cfgAddBool(pCfg, "deadLockKillQuery", tsDeadLockKillQuery, 0) != 0) return -1;
 
-  if (cfgAddBool(pCfg, "multiProcess", tsMultiProcess, 0) != 0) return -1;
+  if (cfgAddInt32(pCfg, "multiProcess", tsMultiProcess, 0, 2, 0) != 0) return -1;
   if (cfgAddInt32(pCfg, "mnodeShmSize", tsMnodeShmSize, TSDB_MAX_WAL_SIZE + 128, INT32_MAX, 0) != 0) return -1;
   if (cfgAddInt32(pCfg, "vnodeShmSize", tsVnodeShmSize, TSDB_MAX_WAL_SIZE + 128, INT32_MAX, 0) != 0) return -1;
   if (cfgAddInt32(pCfg, "qnodeShmSize", tsQnodeShmSize, TSDB_MAX_WAL_SIZE + 128, INT32_MAX, 0) != 0) return -1;
@@ -552,7 +552,7 @@ static int32_t taosSetServerCfg(SConfig *pCfg) {
   tsRetrieveBlockingModel = cfgGetItem(pCfg, "retrieveBlockingModel")->bval;
   tsPrintAuth = cfgGetItem(pCfg, "printAuth")->bval;
   tsEnableSlaveQuery = cfgGetItem(pCfg, "slaveQuery")->bval;
-  tsDeadLockKillQuery = cfgGetItem(pCfg, "deadLockKillQuery")->bval;
+  tsDeadLockKillQuery = cfgGetItem(pCfg, "deadLockKillQuery")->i32;
 
   tsMultiProcess = cfgGetItem(pCfg, "multiProcess")->bval;
   tsMnodeShmSize = cfgGetItem(pCfg, "mnodeShmSize")->i32;
diff --git a/source/dnode/mgmt/node_mgmt/src/dmNodes.c b/source/dnode/mgmt/node_mgmt/src/dmNodes.c
index 97a32f87b4b6bb4990d989ce35ffdbc2e41eccfb..e9928bec59e381cf5534f48581ce201d3d744eab 100644
--- a/source/dnode/mgmt/node_mgmt/src/dmNodes.c
+++ b/source/dnode/mgmt/node_mgmt/src/dmNodes.c
@@ -16,7 +16,7 @@
 #define _DEFAULT_SOURCE
 #include "dmMgmt.h"
 
-static int32_t dmInitParentProc(SMgmtWrapper *pWrapper) {
+static int32_t dmCreateShm(SMgmtWrapper *pWrapper) {
   int32_t shmsize = tsMnodeShmSize;
   if (pWrapper->ntype == VNODE) {
     shmsize = tsVnodeShmSize;
@@ -38,16 +38,10 @@ static int32_t dmInitParentProc(SMgmtWrapper *pWrapper) {
     return -1;
   }
   dInfo("node:%s, shm:%d is created, size:%d", pWrapper->name, pWrapper->proc.shm.id, shmsize);
-
-  if (dmInitProc(pWrapper) != 0) {
-    dError("node:%s, failed to create proc since %s", pWrapper->name, terrstr());
-    return -1;
-  }
-
   return 0;
 }
 
-static int32_t dmNewNodeProc(SMgmtWrapper *pWrapper, EDndNodeType ntype) {
+static int32_t dmNewProc(SMgmtWrapper *pWrapper, EDndNodeType ntype) {
   char  tstr[8] = {0};
   char *args[6] = {0};
   snprintf(tstr, sizeof(tstr), "%d", ntype);
@@ -69,21 +63,6 @@ static int32_t dmNewNodeProc(SMgmtWrapper *pWrapper, EDndNodeType ntype) {
   return 0;
 }
 
-static int32_t dmRunParentProc(SMgmtWrapper *pWrapper) {
-  if (pWrapper->pDnode->rtype == NODE_END) {
-    dInfo("node:%s, should be started manually in child process", pWrapper->name);
-  } else {
-    if (dmNewNodeProc(pWrapper, pWrapper->ntype) != 0) {
-      return -1;
-    }
-  }
-  if (dmRunProc(&pWrapper->proc) != 0) {
-    dError("node:%s, failed to run proc since %s", pWrapper->name, terrstr());
-    return -1;
-  }
-  return 0;
-}
-
 int32_t dmOpenNode(SMgmtWrapper *pWrapper) {
   if (taosMkDir(pWrapper->path) != 0) {
     terrno = TAOS_SYSTEM_ERROR(errno);
@@ -108,34 +87,49 @@ int32_t dmOpenNode(SMgmtWrapper *pWrapper) {
     pWrapper->deployed = true;
   }
 
-  if (InChildProc(pWrapper->proc.ptype)) {
+  if (InParentProc(pWrapper->proc.ptype)) {
     dDebug("node:%s, start to open", pWrapper->name);
-    if ((*pWrapper->func.openFp)(&input, &output) != 0) {
-      dError("node:%s, failed to open since %s", pWrapper->name, terrstr());
+    if (dmCreateShm(pWrapper) != 0) {
       return -1;
     }
-    if (dmInitProc(pWrapper) != 0) {
+    if (dmWriteShmFile(pWrapper->path, pWrapper->name, &pWrapper->proc.shm) != 0) {
       return -1;
     }
-    if (dmRunProc(&pWrapper->proc) != 0) {
-      return -1;
+
+    if (!OnlyInTestProc(pWrapper->proc.ptype)) {
+      if (dmInitProc(pWrapper) != 0) {
+        dError("node:%s, failed to init proc since %s", pWrapper->name, terrstr());
+        return -1;
+      }
+      if (pWrapper->pDnode->rtype == NODE_END) {
+        dInfo("node:%s, should be started manually in child process", pWrapper->name);
+      } else {
+        if (dmNewProc(pWrapper, pWrapper->ntype) != 0) {
+          return -1;
+        }
+      }
+      if (dmRunProc(&pWrapper->proc) != 0) {
+        dError("node:%s, failed to run proc since %s", pWrapper->name, terrstr());
+        return -1;
+      }
     }
-    dDebug("node:%s, has been opened in child process", pWrapper->name);
-    pWrapper->deployed = true;
+    dDebug("node:%s, has been opened in parent process", pWrapper->name);
   }
 
-  if (InParentProc(pWrapper->proc.ptype)) {
+  if (InChildProc(pWrapper->proc.ptype)) {
     dDebug("node:%s, start to open", pWrapper->name);
-    if (dmInitParentProc(pWrapper) != 0) {
+    if ((*pWrapper->func.openFp)(&input, &output) != 0) {
+      dError("node:%s, failed to open since %s", pWrapper->name, terrstr());
       return -1;
     }
-    if (dmWriteShmFile(pWrapper->path, pWrapper->name, &pWrapper->proc.shm) != 0) {
+    if (dmInitProc(pWrapper) != 0) {
       return -1;
     }
-    if (dmRunParentProc(pWrapper) != 0) {
+    if (dmRunProc(&pWrapper->proc) != 0) {
       return -1;
     }
-    dDebug("node:%s, has been opened in parent process", pWrapper->name);
+    dDebug("node:%s, has been opened in child process", pWrapper->name);
+    pWrapper->deployed = true;
   }
 
   if (output.pMgmt != NULL) {
@@ -246,7 +240,7 @@ static void dmCloseNodes(SDnode *pDnode) {
 }
 
 static void dmWatchNodes(SDnode *pDnode) {
-  if (!InParentProc(pDnode->ptype)) return;
+  if (!OnlyInParentProc(pDnode->ptype)) return;
   if (pDnode->rtype == NODE_END) return;
 
   taosThreadMutexLock(&pDnode->mutex);
@@ -255,12 +249,12 @@ static void dmWatchNodes(SDnode *pDnode) {
     SProc        *proc = &pWrapper->proc;
 
     if (!pWrapper->required) continue;
-    if (!InParentProc(proc->ptype)) continue;
+    if (!OnlyInParentProc(proc->ptype)) continue;
 
     if (proc->pid <= 0 || !taosProcExist(proc->pid)) {
       dWarn("node:%s, process:%d is killed and needs to restart", pWrapper->name, proc->pid);
       dmCloseProcRpcHandles(&pWrapper->proc);
-      dmNewNodeProc(pWrapper, ntype);
+      dmNewProc(pWrapper, ntype);
     }
   }
   taosThreadMutexUnlock(&pDnode->mutex);
diff --git a/source/dnode/mgmt/node_mgmt/src/dmProc.c b/source/dnode/mgmt/node_mgmt/src/dmProc.c
index 73bab07c5822da2e87aa3ba68bdf4fe357bd678f..187d129fac2c18e550e2bb75bfbdfd63ccf319c4 100644
--- a/source/dnode/mgmt/node_mgmt/src/dmProc.c
+++ b/source/dnode/mgmt/node_mgmt/src/dmProc.c
@@ -67,7 +67,7 @@ static SProcQueue *dmInitProcQueue(SProc *proc, char *ptr, int32_t size) {
     return NULL;
   }
 
-  if (InParentProc(proc->ptype) && !InChildProc(proc->ptype)) {
+  if (InParentProc(proc->ptype)) {
     if (dmInitProcMutex(queue) != 0) {
       return NULL;
     }
@@ -185,8 +185,8 @@ static int32_t dmPushToProcQueue(SProc *proc, SProcQueue *queue, const char *pHe
   taosThreadMutexUnlock(&queue->mutex);
   tsem_post(&queue->sem);
 
-  dTrace("node:%s, push msg:%p %d cont:%p %d handle:%p, ftype:%s pos:%d remain:%d", queue->name, pHead, headLen, pBody,
-         bodyLen, (void *)handle, dmFuncStr(ftype), pos, queue->items);
+  dTrace("node:%s, push %s msg:%p %d cont:%p %d, pos:%d remain:%d", queue->name, dmFuncStr(ftype), pHead, headLen,
+         pBody, bodyLen, pos, queue->items);
   return 0;
 }
 
@@ -269,13 +269,15 @@ static int32_t dmPopFromProcQueue(SProcQueue *queue, void **ppHead, int16_t *pHe
   *pBodyLen = rawBodyLen;
   *pFuncType = (EProcFuncType)ftype;
 
-  dTrace("node:%s, pop msg:%p %d body:%p %d, ftype:%s pos:%d remain:%d", queue->name, pHead, rawHeadLen, pBody,
-         rawBodyLen, dmFuncStr(ftype), pos, queue->items);
+  dTrace("node:%s, pop %s msg:%p %d body:%p %d, pos:%d remain:%d", queue->name, dmFuncStr(ftype), pHead, rawHeadLen,
+         pBody, rawBodyLen, pos, queue->items);
   return 1;
 }
 
 int32_t dmInitProc(struct SMgmtWrapper *pWrapper) {
   SProc *proc = &pWrapper->proc;
+  if (proc->name != NULL) return 0;
+
   proc->wrapper = pWrapper;
   proc->name = pWrapper->name;
 
@@ -319,7 +321,7 @@ static void *dmConsumChildQueue(void *param) {
   do {
     numOfMsgs = dmPopFromProcQueue(queue, &pHead, &headLen, &pBody, &bodyLen, &ftype);
     if (numOfMsgs == 0) {
-      dDebug("node:%s, get no msg from cueue and exit thread", proc->name);
+      dDebug("node:%s, get no msg from cqueue and exit thread", proc->name);
       break;
     }
 
@@ -330,11 +332,10 @@ static void *dmConsumChildQueue(void *param) {
     }
 
     if (ftype != DND_FUNC_REQ) {
-      dFatal("node:%s, msg:%p from cqueue, invalid ftype:%d", proc->name, pHead, ftype);
+      dFatal("node:%s, get msg:%p from cqueue, invalid ftype:%d", proc->name, pHead, ftype);
       taosFreeQitem(pHead);
       rpcFreeCont(pBody);
     } else {
-      dTrace("node:%s, msg:%p from cueue", proc->name, pHead);
       pReq = pHead;
       pReq->rpcMsg.pCont = pBody;
       code = dmProcessNodeMsg(pWrapper, pReq);
@@ -388,22 +389,22 @@ static void *dmConsumParentQueue(void *param) {
     if (ftype == DND_FUNC_RSP) {
       pRsp = pHead;
       pRsp->pCont = pBody;
-      dTrace("node:%s, rsp msg:%p from pqueue, code:0x%04x handle:%p", proc->name, pRsp, code, pRsp->handle);
+      dTrace("node:%s, get rsp msg:%p from pqueue, code:0x%04x handle:%p", proc->name, pRsp, code, pRsp->handle);
       dmRemoveProcRpcHandle(proc, pRsp->handle);
       rpcSendResponse(pRsp);
     } else if (ftype == DND_FUNC_REGIST) {
       pRsp = pHead;
-      dTrace("node:%s, regist msg:%p from pqueue, code:0x%04x handle:%p", proc->name, pRsp, code, pRsp->handle);
+      dTrace("node:%s, get regist msg:%p from pqueue, code:0x%04x handle:%p", proc->name, pRsp, code, pRsp->handle);
       rpcRegisterBrokenLinkArg(pRsp);
       rpcFreeCont(pBody);
     } else if (ftype == DND_FUNC_RELEASE) {
       pRsp = pHead;
-      dTrace("node:%s, release msg:%p from pqueue, code:0x%04x handle:%p", proc->name, pRsp, code, pRsp->handle);
+      dTrace("node:%s, get release msg:%p from pqueue, code:0x%04x handle:%p", proc->name, pRsp, code, pRsp->handle);
       dmRemoveProcRpcHandle(proc, pRsp->handle);
       rpcReleaseHandle(pRsp->handle, (int8_t)pRsp->code);
       rpcFreeCont(pBody);
     } else {
-      dFatal("node:%s, msg:%p get from pqueue, invalid ftype:%d", proc->name, pHead, ftype);
+      dFatal("node:%s, get msg:%p from pqueue, invalid ftype:%d", proc->name, pHead, ftype);
       rpcFreeCont(pBody);
     }
 
@@ -441,16 +442,17 @@ int32_t dmRunProc(SProc *proc) {
 }
 
 void dmStopProc(SProc *proc) {
+  proc->stop = true;
   if (taosCheckPthreadValid(proc->pthread)) {
     dDebug("node:%s, start to join pthread:%" PRId64, proc->name, proc->pthread);
-    tsem_post(&proc->cqueue->sem);
+    tsem_post(&proc->pqueue->sem);
     taosThreadJoin(proc->pthread, NULL);
     taosThreadClear(&proc->pthread);
   }
 
   if (taosCheckPthreadValid(proc->cthread)) {
     dDebug("node:%s, start to join cthread:%" PRId64, proc->name, proc->cthread);
-    tsem_post(&proc->pqueue->sem);
+    tsem_post(&proc->cqueue->sem);
     taosThreadJoin(proc->cthread, NULL);
     taosThreadClear(&proc->cthread);
   }
@@ -458,6 +460,7 @@ void dmStopProc(SProc *proc) {
 
 void dmCleanupProc(struct SMgmtWrapper *pWrapper) {
   SProc *proc = &pWrapper->proc;
+  if (proc->name == NULL) return;
 
   dDebug("node:%s, start to clean up proc", pWrapper->name);
   dmStopProc(proc);
diff --git a/source/dnode/mgmt/node_mgmt/src/dmTransport.c b/source/dnode/mgmt/node_mgmt/src/dmTransport.c
index 0a2fb71e98db5cd7e27c75c1041c4e564662b639..e242bf2849b93ddab29a77bfe580a99d6e20b87f 100644
--- a/source/dnode/mgmt/node_mgmt/src/dmTransport.c
+++ b/source/dnode/mgmt/node_mgmt/src/dmTransport.c
@@ -77,6 +77,9 @@ static void dmProcessRpcMsg(SDnode *pDnode, SRpcMsg *pRpc, SEpSet *pEpSet) {
   SMsgHandle   *pHandle = &pTrans->msgHandles[TMSG_INDEX(msgType)];
   SMgmtWrapper *pWrapper = NULL;
 
+  dTrace("msg:%s is received, handle:%p app:%p cont:%p len:%d code:0x%04x refId:%" PRId64, TMSG_INFO(msgType),
+         pRpc->handle, pRpc->ahandle, pRpc->pCont, pRpc->contLen, pRpc->code, pRpc->refId);
+
   if (msgType == TDMT_DND_NET_TEST) {
     dmProcessNetTestReq(pDnode, pRpc);
     code = 0;
@@ -110,18 +113,24 @@ static void dmProcessRpcMsg(SDnode *pDnode, SRpcMsg *pRpc, SEpSet *pEpSet) {
   } else {
     pWrapper = &pDnode->wrappers[pHandle->defaultNtype];
     if (pHandle->needCheckVgId) {
-      SMsgHead *pHead = pRpc->pCont;
-      int32_t   vgId = ntohl(pHead->vgId);
-      if (vgId == QNODE_HANDLE) {
-        pWrapper = &pDnode->wrappers[QNODE];
-      } else if (vgId == MNODE_HANDLE) {
-        pWrapper = &pDnode->wrappers[MNODE];
+      if (pRpc->contLen > 0) {
+        SMsgHead *pHead = pRpc->pCont;
+        int32_t   vgId = ntohl(pHead->vgId);
+        if (vgId == QNODE_HANDLE) {
+          pWrapper = &pDnode->wrappers[QNODE];
+        } else if (vgId == MNODE_HANDLE) {
+          pWrapper = &pDnode->wrappers[MNODE];
+        } else {
+          terrno = TSDB_CODE_INVALID_MSG;
+          goto _OVER;
+        }
       } else {
+        terrno = TSDB_CODE_INVALID_MSG_LEN;
+        goto _OVER;
       }
     }
   }
 
-  dTrace("msg:%s is received, handle:%p app:%p", TMSG_INFO(msgType), pRpc->handle, pRpc->ahandle);
   if (dmMarkWrapper(pWrapper) != 0) {
     goto _OVER;
   } else {
@@ -138,7 +147,6 @@ static void dmProcessRpcMsg(SDnode *pDnode, SRpcMsg *pRpc, SEpSet *pEpSet) {
   }
 
   if (InParentProc(pWrapper->proc.ptype)) {
-    dTrace("msg:%p, put into cqueue, handle:%p refId:%" PRId64, pMsg, pRpc->handle, pRpc->refId);
     code = dmPutToProcCQueue(&pWrapper->proc, pMsg, sizeof(SNodeMsg), pRpc->pCont, pRpc->contLen,
                              (isReq && (pRpc->code == 0)) ? pRpc->handle : NULL, pRpc->refId, DND_FUNC_REQ);
   } else {