diff --git a/source/dnode/vnode/impl/CMakeLists.txt b/source/dnode/vnode/impl/CMakeLists.txt
index 3623516624..6972605afd 100644
--- a/source/dnode/vnode/impl/CMakeLists.txt
+++ b/source/dnode/vnode/impl/CMakeLists.txt
@@ -19,5 +19,5 @@ target_link_libraries(
 
 # test
 if(${BUILD_TEST})
-   #add_subdirectory(test)
+   add_subdirectory(test)
 endif(${BUILD_TEST})
\ No newline at end of file
diff --git a/source/dnode/vnode/impl/inc/vnodeDef.h b/source/dnode/vnode/impl/inc/vnodeDef.h
index 56e07aca10..605557d4ea 100644
--- a/source/dnode/vnode/impl/inc/vnodeDef.h
+++ b/source/dnode/vnode/impl/inc/vnodeDef.h
@@ -71,6 +71,7 @@ struct SVnode {
   SWal*       pWal;
   SVnodeSync* pSync;
   SVnodeFS*   pFs;
+  tsem_t      canCommit;
 };
 
 int vnodeScheduleTask(SVnodeTask* task);
diff --git a/source/dnode/vnode/impl/src/vnodeCommit.c b/source/dnode/vnode/impl/src/vnodeCommit.c
index 7213e31cb4..f5bf60a7e3 100644
--- a/source/dnode/vnode/impl/src/vnodeCommit.c
+++ b/source/dnode/vnode/impl/src/vnodeCommit.c
@@ -38,9 +38,10 @@ int vnodeCommit(void *arg) {
 
   metaCommit(pVnode->pMeta);
   tqCommit(pVnode->pTq);
-  tsdbCommit(pVnode->pTq);
+  tsdbCommit(pVnode->pTsdb);
 
   vnodeBufPoolRecycle(pVnode);
+  tsem_post(&(pVnode->canCommit));
   // TODO
   return 0;
 }
diff --git a/source/dnode/vnode/impl/src/vnodeMain.c b/source/dnode/vnode/impl/src/vnodeMain.c
index 70d9c7d4b0..c98f3e0800 100644
--- a/source/dnode/vnode/impl/src/vnodeMain.c
+++ b/source/dnode/vnode/impl/src/vnodeMain.c
@@ -74,11 +74,14 @@ static SVnode *vnodeNew(const char *path, const SVnodeCfg *pVnodeCfg) {
   pVnode->path = strdup(path);
   vnodeOptionsCopy(&(pVnode->config), pVnodeCfg);
 
+  tsem_init(&(pVnode->canCommit), 0, 1);
+
   return pVnode;
 }
 
 static void vnodeFree(SVnode *pVnode) {
   if (pVnode) {
+    tsem_destroy(&(pVnode->canCommit));
     tfree(pVnode->path);
     free(pVnode);
   }
diff --git a/source/dnode/vnode/impl/src/vnodeWrite.c b/source/dnode/vnode/impl/src/vnodeWrite.c
index 85e044266a..9a4efbda4c 100644
--- a/source/dnode/vnode/impl/src/vnodeWrite.c
+++ b/source/dnode/vnode/impl/src/vnodeWrite.c
@@ -31,14 +31,14 @@ int vnodeProcessNoWalWMsgs(SVnode *pVnode, SRpcMsg *pMsg) {
 }
 
 int vnodeProcessWMsgs(SVnode *pVnode, SArray *pMsgs) {
-  SRpcMsg   *pMsg;
+  SRpcMsg *  pMsg;
   SVnodeReq *pVnodeReq;
 
   for (int i = 0; i < taosArrayGetSize(pMsgs); i++) {
     pMsg = *(SRpcMsg **)taosArrayGet(pMsgs, i);
 
     // ser request version
-    void   *pBuf = pMsg->pCont;
+    void *  pBuf = pMsg->pCont;
     int64_t ver = pVnode->state.processed++;
     taosEncodeFixedU64(&pBuf, ver);
 
@@ -52,65 +52,64 @@ int vnodeProcessWMsgs(SVnode *pVnode, SArray *pMsgs) {
   // Apply each request now
   for (int i = 0; i < taosArrayGetSize(pMsgs); i++) {
     pMsg = *(SRpcMsg **)taosArrayGet(pMsgs, i);
-    SVnodeReq vReq;
 
-    // Apply the request
-    {
-      void *ptr = vnodeMalloc(pVnode, pMsg->contLen);
-      if (ptr == NULL) {
-        // TODO: handle error
-      }
-
-      // TODO: copy here need to be extended
-      memcpy(ptr, pMsg->pCont, pMsg->contLen);
-
-      // todo: change the interface here
-      uint64_t ver;
-      taosDecodeFixedU64(pMsg->pCont, &ver);
-      if (tqPushMsg(pVnode->pTq, ptr, ver) < 0) {
-        // TODO: handle error
-      }
-
-      vnodeParseReq(pMsg->pCont, &vReq, pMsg->msgType);
-
-      switch (pMsg->msgType) {
-        case TSDB_MSG_TYPE_CREATE_TABLE:
-          if (metaCreateTable(pVnode->pMeta, &(vReq.ctReq)) < 0) {
-            // TODO: handle error
-          }
-
-          // TODO: maybe need to clear the requst struct
-          break;
-        case TSDB_MSG_TYPE_DROP_TABLE:
-          if (metaDropTable(pVnode->pMeta, vReq.dtReq.uid) < 0) {
-            // TODO: handle error
-          }
-          break;
-        case TSDB_MSG_TYPE_SUBMIT:
-          if (tsdbInsertData(pVnode->pTsdb, (SSubmitMsg *)ptr) < 0) {
-            // TODO: handle error
-          }
-          break;
-        default:
-          break;
-      }
-
-      pVnode->state.applied = ver;
-    }
-
-    // Check if it needs to commit
-    if (vnodeShouldCommit(pVnode)) {
-      if (vnodeAsyncCommit(pVnode) < 0) {
-        // TODO: handle error
-      }
-    }
+    // TODO: Now we just need a 
+    vnodeApplyWMsg(pVnode, pMsg, NULL);
   }
 
   return 0;
 }
 
 int vnodeApplyWMsg(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp) {
-  // TODO
+  SVnodeReq vReq;
+  void *    ptr = vnodeMalloc(pVnode, pMsg->contLen);
+  if (ptr == NULL) {
+    // TODO: handle error
+  }
+
+  // TODO: copy here need to be extended
+  memcpy(ptr, pMsg->pCont, pMsg->contLen);
+
+  // todo: change the interface here
+  uint64_t ver;
+  taosDecodeFixedU64(pMsg->pCont, &ver);
+  if (tqPushMsg(pVnode->pTq, ptr, ver) < 0) {
+    // TODO: handle error
+  }
+
+  vnodeParseReq(pMsg->pCont, &vReq, pMsg->msgType);
+
+  switch (pMsg->msgType) {
+    case TSDB_MSG_TYPE_CREATE_TABLE:
+      if (metaCreateTable(pVnode->pMeta, &(vReq.ctReq)) < 0) {
+        // TODO: handle error
+      }
+
+      // TODO: maybe need to clear the requst struct
+      break;
+    case TSDB_MSG_TYPE_DROP_TABLE:
+      if (metaDropTable(pVnode->pMeta, vReq.dtReq.uid) < 0) {
+        // TODO: handle error
+      }
+      break;
+    case TSDB_MSG_TYPE_SUBMIT:
+      if (tsdbInsertData(pVnode->pTsdb, (SSubmitMsg *)ptr) < 0) {
+        // TODO: handle error
+      }
+      break;
+    default:
+      break;
+  }
+
+  pVnode->state.applied = ver;
+
+  // Check if it needs to commit
+  if (vnodeShouldCommit(pVnode)) {
+    tsem_wait(&(pVnode->canCommit));
+    if (vnodeAsyncCommit(pVnode) < 0) {
+      // TODO: handle error
+    }
+  }
   return 0;
 }