diff --git a/src/dnode/inc/dnodeModule.h b/src/dnode/inc/dnodeModule.h
index b6b57be3d1760d79007658255e94870660d73446..8618de324446ca3f2504d15a6422bcca3a4b51b0 100644
--- a/src/dnode/inc/dnodeModule.h
+++ b/src/dnode/inc/dnodeModule.h
@@ -22,7 +22,7 @@ extern "C" {
 
 int32_t dnodeInitModules();
 void    dnodeStartModules();
-void    dnodeCleanUpModules();
+void    dnodeCleanupModules();
 void    dnodeProcessModuleStatus(uint32_t moduleStatus);
 
 #ifdef __cplusplus
diff --git a/src/dnode/src/dnodeMain.c b/src/dnode/src/dnodeMain.c
index 76f9446e0e9deeb7a3c2d2085b1020241e38cf05..69400816295a155de26f6f0175180931096471aa 100644
--- a/src/dnode/src/dnodeMain.c
+++ b/src/dnode/src/dnodeMain.c
@@ -36,6 +36,46 @@ static void dnodeCleanupStorage();
 static void dnodeSetRunStatus(SDnodeRunStatus status);
 static void dnodeCheckDataDirOpenned(char *dir);
 static SDnodeRunStatus tsDnodeRunStatus = TSDB_DNODE_RUN_STATUS_STOPPED;
+static int32_t dnodeInitComponents();
+static void dnodeCleanupComponents(int32_t stepId);
+
+typedef struct {
+  const char *const name;
+  int               (*init)();
+  void              (*cleanup)();
+} SDnodeComponent;
+
+static const SDnodeComponent SDnodeComponents[] = {
+  {"storage", dnodeInitStorage,    dnodeCleanupStorage},
+  {"vread",   dnodeInitVnodeRead,  dnodeCleanupVnodeRead},
+  {"vwrite",  dnodeInitVnodeWrite, dnodeCleanupVnodeWrite},
+  {"mread",   dnodeInitMnodeRead,  dnodeCleanupMnodeRead},
+  {"mwrite",  dnodeInitMnodeWrite, dnodeCleanupMnodeWrite},
+  {"mpeer",   dnodeInitMnodePeer,  dnodeCleanupMnodePeer},  
+  {"client",  dnodeInitClient,     dnodeCleanupClient},
+  {"server",  dnodeInitServer,     dnodeCleanupServer},
+  {"mgmt",    dnodeInitMgmt,       dnodeCleanupMgmt},
+  {"modules", dnodeInitModules,    dnodeCleanupModules},
+  {"shell",   dnodeInitShell,      dnodeCleanupShell}
+};
+
+static void dnodeCleanupComponents(int32_t stepId) {
+  for (int32_t i = stepId; i >= 0; i--) {
+    SDnodeComponents[i].cleanup();
+  }
+}
+
+static int32_t dnodeInitComponents() {
+  int32_t code = 0;
+  for (int32_t i = 0; i < sizeof(SDnodeComponents) / sizeof(SDnodeComponents[0]); i++) {
+    if (SDnodeComponents[i].init() != 0) {
+      dnodeCleanupComponents(i);
+      code = -1;
+      break;
+    }
+  }
+  return code;
+}
 
 int32_t dnodeInitSystem() {
   dnodeSetRunStatus(TSDB_DNODE_RUN_STATUS_INITIALIZE);
@@ -67,17 +107,9 @@ int32_t dnodeInitSystem() {
 
   dPrint("start to initialize TDengine on %s", tsLocalEp);
 
-  if (dnodeInitStorage() != 0) return -1;
-  if (dnodeInitVnodeRead() != 0) return -1;
-  if (dnodeInitVnodeWrite() != 0) return -1;
-  if (dnodeInitMnodeRead() != 0) return -1;
-  if (dnodeInitMnodeWrite() != 0) return -1;
-  if (dnodeInitMnodePeer() != 0) return -1;
-  if (dnodeInitClient() != 0) return -1;
-  if (dnodeInitServer() != 0) return -1;
-  if (dnodeInitMgmt() != 0) return -1;
-  if (dnodeInitModules() != 0) return -1;
-  if (dnodeInitShell() != 0) return -1;
+  if (dnodeInitComponents() != 0) {
+    return -1;
+  }
 
   dnodeStartModules();
   dnodeSetRunStatus(TSDB_DNODE_RUN_STATUS_RUNING);
@@ -90,17 +122,7 @@ int32_t dnodeInitSystem() {
 void dnodeCleanUpSystem() {
   if (dnodeGetRunStatus() != TSDB_DNODE_RUN_STATUS_STOPPED) {
     dnodeSetRunStatus(TSDB_DNODE_RUN_STATUS_STOPPED);
-    dnodeCleanupShell();
-    dnodeCleanUpModules();
-    dnodeCleanupMgmt();
-    dnodeCleanupServer();
-    dnodeCleanupClient();
-    dnodeCleanupMnodePeer();
-    dnodeCleanupMnodeWrite();
-    dnodeCleanupMnodeRead();
-    dnodeCleanupVnodeWrite();
-    dnodeCleanupVnodeRead();
-    dnodeCleanupStorage();
+    dnodeCleanupComponents(sizeof(SDnodeComponents) / sizeof(SDnodeComponents[0]) - 1);
     taos_cleanup();
     taosCloseLog();
   }
diff --git a/src/dnode/src/dnodeModule.c b/src/dnode/src/dnodeModule.c
index 2afc55eada6d62de53641dceb3ce1aa368fc5469..dc1515282d86abec8d1e177d963b4ba6b473464b 100644
--- a/src/dnode/src/dnodeModule.c
+++ b/src/dnode/src/dnodeModule.c
@@ -83,7 +83,7 @@ static void dnodeAllocModules() {
   }
 }
 
-void dnodeCleanUpModules() {
+void dnodeCleanupModules() {
   for (int32_t module = 1; module < TSDB_MOD_MAX; ++module) {
     if (tsModule[module].enable && tsModule[module].stopFp) {
       (*tsModule[module].stopFp)();
diff --git a/src/dnode/src/dnodeSystem.c b/src/dnode/src/dnodeSystem.c
index 0f8dabd75a7b0e10263a721b77e765971d5272c0..97cf6f7eeb4170d4ff7771db8498e35ec5652458 100644
--- a/src/dnode/src/dnodeSystem.c
+++ b/src/dnode/src/dnodeSystem.c
@@ -39,11 +39,11 @@ int32_t main(int32_t argc, char *argv[]) {
         exit(EXIT_FAILURE);
       }
     } else if (strcmp(argv[i], "-V") == 0) {
-#ifdef _SYNC      
+#ifdef _SYNC
       char *versionStr = "enterprise";
-#else      
+#else
       char *versionStr = "community";
-#endif      
+#endif
       printf("%s version: %s compatible_version: %s\n", versionStr, version, compatible_version);
       printf("gitinfo: %s\n", gitinfo);
       printf("gitinfoI: %s\n", gitinfoOfInternal);
@@ -93,8 +93,6 @@ int32_t main(int32_t argc, char *argv[]) {
   if (dnodeInitSystem() < 0) {
     syslog(LOG_ERR, "Error initialize TDengine system");
     closelog();
-
-    dnodeCleanUpSystem();
     exit(EXIT_FAILURE);
   }
 
diff --git a/src/dnode/src/dnodeVRead.c b/src/dnode/src/dnodeVRead.c
index 1ff868d0ff5e7ae341579265d52f1deec020a5a7..72882b679bbbf06aab7a6d26b6f86b270dbde38e 100644
--- a/src/dnode/src/dnodeVRead.c
+++ b/src/dnode/src/dnodeVRead.c
@@ -34,7 +34,7 @@ typedef struct {
 } SReadMsg;
 
 typedef struct {
-  pthread_t  thread;    // thread 
+  pthread_t  thread;    // thread
   int32_t    workerId;  // worker ID
 } SReadWorker;
 
@@ -85,8 +85,8 @@ void dnodeCleanupVnodeRead() {
     }
   }
 
-  taosCloseQset(readQset);
   free(readPool.readWorker);
+  taosCloseQset(readQset);
 
   dPrint("dnode read is closed");
 }
@@ -95,7 +95,7 @@ void dnodeDispatchToVnodeReadQueue(SRpcMsg *pMsg) {
   int32_t     queuedMsgNum = 0;
   int32_t     leftLen      = pMsg->contLen;
   char        *pCont       = (char *) pMsg->pCont;
-  void        *pVnode;  
+  void        *pVnode;
 
   while (leftLen > 0) {
     SMsgHead *pHead = (SMsgHead *) pCont;
@@ -166,7 +166,7 @@ void *dnodeAllocateVnodeRqueue(void *pVnode) {
     } while (readPool.num < readPool.min);
   }
 
-  dTrace("pVnode:%p, read queue:%p is allocated", pVnode, queue); 
+  dTrace("pVnode:%p, read queue:%p is allocated", pVnode, queue);
 
   return queue;
 }
@@ -177,13 +177,13 @@ void dnodeFreeVnodeRqueue(void *rqueue) {
   // dynamically adjust the number of threads
 }
 
-static void dnodeContinueExecuteQuery(void* pVnode, void* qhandle, SReadMsg *pMsg) {  
+static void dnodeContinueExecuteQuery(void* pVnode, void* qhandle, SReadMsg *pMsg) {
   SReadMsg *pRead = (SReadMsg *)taosAllocateQitem(sizeof(SReadMsg));
   pRead->rpcMsg      = pMsg->rpcMsg;
   pRead->pCont       = qhandle;
   pRead->contLen     = 0;
   pRead->rpcMsg.msgType = TSDB_MSG_TYPE_QUERY;
-  
+
   taos_queue queue = vnodeGetRqueue(pVnode);
   taosWriteQitem(queue, TAOS_QTYPE_RPC, pRead);
 }