diff --git a/src/dnode/src/dnodeModule.c b/src/dnode/src/dnodeModule.c
index dc1515282d86abec8d1e177d963b4ba6b473464b..c2e8c1d102ddc79958baa3285f3f5c57988fe1f1 100644
--- a/src/dnode/src/dnodeModule.c
+++ b/src/dnode/src/dnodeModule.c
@@ -84,7 +84,7 @@ static void dnodeAllocModules() {
 }
 
 void dnodeCleanupModules() {
-  for (int32_t module = 1; module < TSDB_MOD_MAX; ++module) {
+  for (EModuleType module = 1; module < TSDB_MOD_MAX; ++module) {
     if (tsModule[module].enable && tsModule[module].stopFp) {
       (*tsModule[module].stopFp)();
     }
diff --git a/src/dnode/src/dnodeVWrite.c b/src/dnode/src/dnodeVWrite.c
index 20c50c5f8c3528d8be2773486d859d3d007841b6..4b26c05649d0e97fffd7602f0cf4bddeb19bc10b 100644
--- a/src/dnode/src/dnodeVWrite.c
+++ b/src/dnode/src/dnodeVWrite.c
@@ -32,9 +32,9 @@
 typedef struct {
   taos_qall  qall;
   taos_qset  qset;      // queue set
-  pthread_t  thread;    // thread 
+  pthread_t  thread;    // thread
   int32_t    workerId;  // worker ID
-} SWriteWorker;  
+} SWriteWorker;
 
 typedef struct {
   SRspRet  rspRet;
@@ -136,17 +136,24 @@ void *dnodeAllocateVnodeWqueue(void *pVnode) {
 
     taosAddIntoQset(pWorker->qset, queue, pVnode);
     pWorker->qall = taosAllocateQall();
-    wWorkerPool.nextId = (wWorkerPool.nextId + 1) % wWorkerPool.max;
-
+    if (pWorker->qall == NULL) {
+      taosCloseQset(pWorker->qset);
+      taosCloseQueue(queue);
+      return NULL;
+    }
     pthread_attr_t thAttr;
     pthread_attr_init(&thAttr);
     pthread_attr_setdetachstate(&thAttr, PTHREAD_CREATE_JOINABLE);
 
     if (pthread_create(&pWorker->thread, &thAttr, dnodeProcessWriteQueue, pWorker) != 0) {
       dError("failed to create thread to process read queue, reason:%s", strerror(errno));
+      taosFreeQall(pWorker->qall);
       taosCloseQset(pWorker->qset);
+      taosCloseQueue(queue);
+      queue = NULL;
     } else {
       dTrace("write worker:%d is launched", pWorker->workerId);
+      wWorkerPool.nextId = (wWorkerPool.nextId + 1) % wWorkerPool.max;
     }
 
     pthread_attr_destroy(&thAttr);
@@ -195,7 +202,7 @@ static void *dnodeProcessWriteQueue(void *param) {
 
   while (1) {
     numOfMsgs = taosReadAllQitemsFromQset(pWorker->qset, pWorker->qall, &pVnode);
-    if (numOfMsgs ==0) { 
+    if (numOfMsgs == 0) {
       dTrace("dnodeProcessWriteQueee: got no message from qset, exiting...");
       break;
     }
@@ -243,7 +250,7 @@ static void dnodeHandleIdleWorker(SWriteWorker *pWorker) {
 
   if (num > 0) {
      usleep(30000);
-     sched_yield(); 
+     sched_yield();
   } else {
      taosFreeQall(pWorker->qall);
      taosCloseQset(pWorker->qset);
diff --git a/src/vnode/src/vnodeMain.c b/src/vnode/src/vnodeMain.c
index c2a0e4189f72403c25636f5417505acde35c93b5..6e949db7e5ab90fc9a4b22f0e539c6f023e6021a 100644
--- a/src/vnode/src/vnodeMain.c
+++ b/src/vnode/src/vnodeMain.c
@@ -108,7 +108,7 @@ int32_t vnodeCreate(SMDCreateVnodeMsg *pVnodeCfg) {
   tsdbCfg.maxRowsPerFileBlock = pVnodeCfg->cfg.maxRowsPerFileBlock;
   tsdbCfg.precision           = pVnodeCfg->cfg.precision;
   tsdbCfg.compression         = pVnodeCfg->cfg.compression;;
-  
+
   char tsdbDir[TSDB_FILENAME_LEN] = {0};
   sprintf(tsdbDir, "%s/vnode%d/tsdb", tsVnodeDir, pVnodeCfg->cfg.vgId);
   code = tsdbCreateRepo(tsdbDir, &tsdbCfg, NULL);
@@ -139,7 +139,7 @@ int32_t vnodeDrop(int32_t vgId) {
   vTrace("vgId:%d, vnode will be dropped", pVnode->vgId);
   pVnode->status = TAOS_VN_STATUS_DELETING;
   vnodeCleanUp(pVnode);
- 
+
   return TSDB_CODE_SUCCESS;
 }
 
@@ -262,7 +262,7 @@ int32_t vnodeOpen(int32_t vnode, char *rootDir) {
 #endif
 
   // start continuous query
-  if (pVnode->role == TAOS_SYNC_ROLE_MASTER) 
+  if (pVnode->role == TAOS_SYNC_ROLE_MASTER)
     cqStart(pVnode->cq);
 
   pVnode->events = NULL;
@@ -342,7 +342,7 @@ void *vnodeAccquireVnode(int32_t vgId) {
 }
 
 void *vnodeGetRqueue(void *pVnode) {
-  return ((SVnodeObj *)pVnode)->rqueue; 
+  return ((SVnodeObj *)pVnode)->rqueue;
 }
 
 void *vnodeGetWqueue(int32_t vgId) {
@@ -352,7 +352,7 @@ void *vnodeGetWqueue(int32_t vgId) {
 }
 
 void *vnodeGetWal(void *pVnode) {
-  return ((SVnodeObj *)pVnode)->wal; 
+  return ((SVnodeObj *)pVnode)->wal;
 }
 
 static void vnodeBuildVloadMsg(SVnodeObj *pVnode, SDMStatusMsg *pStatus) {
@@ -447,9 +447,9 @@ static void vnodeNotifyRole(void *ahandle, int8_t role) {
   vPrint("vgId:%d, sync role changed from %d to %d", pVnode->vgId, pVnode->role, role);
   pVnode->role = role;
 
-  if (pVnode->role == TAOS_SYNC_ROLE_MASTER) 
+  if (pVnode->role == TAOS_SYNC_ROLE_MASTER)
     cqStart(pVnode->cq);
-  else 
+  else
     cqStop(pVnode->cq);
 }
 
@@ -501,14 +501,14 @@ static int32_t vnodeSaveCfg(SMDCreateVnodeMsg *pVnodeCfg) {
   len += snprintf(content + len, maxLen - len, "  \"daysToKeep2\": %d,\n", pVnodeCfg->cfg.daysToKeep2);
   len += snprintf(content + len, maxLen - len, "  \"minRowsPerFileBlock\": %d,\n", pVnodeCfg->cfg.minRowsPerFileBlock);
   len += snprintf(content + len, maxLen - len, "  \"maxRowsPerFileBlock\": %d,\n", pVnodeCfg->cfg.maxRowsPerFileBlock);
-  len += snprintf(content + len, maxLen - len, "  \"commitTime\": %d,\n", pVnodeCfg->cfg.commitTime);  
+  len += snprintf(content + len, maxLen - len, "  \"commitTime\": %d,\n", pVnodeCfg->cfg.commitTime);
   len += snprintf(content + len, maxLen - len, "  \"precision\": %d,\n", pVnodeCfg->cfg.precision);
   len += snprintf(content + len, maxLen - len, "  \"compression\": %d,\n", pVnodeCfg->cfg.compression);
   len += snprintf(content + len, maxLen - len, "  \"walLevel\": %d,\n", pVnodeCfg->cfg.walLevel);
   len += snprintf(content + len, maxLen - len, "  \"replica\": %d,\n", pVnodeCfg->cfg.replications);
   len += snprintf(content + len, maxLen - len, "  \"wals\": %d,\n", pVnodeCfg->cfg.wals);
   len += snprintf(content + len, maxLen - len, "  \"quorum\": %d,\n", pVnodeCfg->cfg.quorum);
-  
+
   len += snprintf(content + len, maxLen - len, "  \"nodeInfos\": [{\n");
   for (int32_t i = 0; i < pVnodeCfg->cfg.replications; i++) {
     len += snprintf(content + len, maxLen - len, "    \"nodeId\": %d,\n", pVnodeCfg->nodes[i].nodeId);