diff --git a/src/mnode/inc/mnodeSdb.h b/src/mnode/inc/mnodeSdb.h
index eec6d45e23440547462f6cf78e9750cc35719c5b..0c47f684f81581550a5a42b9a0bfedff3ce262cf 100644
--- a/src/mnode/inc/mnodeSdb.h
+++ b/src/mnode/inc/mnodeSdb.h
@@ -94,6 +94,7 @@ void     sdbDecRef(void *thandle, void *pRow);
 int64_t  sdbGetNumOfRows(void *handle);
 int32_t  sdbGetId(void *handle);
 uint64_t sdbGetVersion();
+bool     sdbCheckRowDeleted(void *thandle, void *pRow);
 
 #ifdef __cplusplus
 }
diff --git a/src/mnode/src/mnodeSdb.c b/src/mnode/src/mnodeSdb.c
index d3192a2460716ee31881715c4146de4330c8ca0c..c8e4ae956c2158f908c20c4aa264ff6b718c0f61 100644
--- a/src/mnode/src/mnodeSdb.c
+++ b/src/mnode/src/mnodeSdb.c
@@ -661,6 +661,14 @@ int32_t sdbInsertRow(SSdbOper *pOper) {
   return TSDB_CODE_SUCCESS;
 }
 
+bool sdbCheckRowDeleted(void *pTableInput, void *pRow) {
+  SSdbTable *pTable = pTableInput;
+  if (pTable == NULL) return false;
+
+  int8_t *updateEnd = pRow + pTable->refCountPos - 1;
+  return (*updateEnd == 1);
+}
+
 int32_t sdbDeleteRow(SSdbOper *pOper) {
   SSdbTable *pTable = (SSdbTable *)pOper->table;
   if (pTable == NULL) return TSDB_CODE_MND_SDB_INVALID_TABLE_TYPE;
diff --git a/src/mnode/src/mnodeTable.c b/src/mnode/src/mnodeTable.c
index f4251e4f83dc855b23cbd350583de85256e17d85..a3dc2b5adba51f36b2cd089511ffc22adda1786b 100644
--- a/src/mnode/src/mnodeTable.c
+++ b/src/mnode/src/mnodeTable.c
@@ -72,7 +72,7 @@ static void    mnodeProcessCreateChildTableRsp(SRpcMsg *rpcMsg);
 static int32_t mnodeProcessDropTableMsg(SMnodeMsg *mnodeMsg);
 static int32_t mnodeProcessDropSuperTableMsg(SMnodeMsg *pMsg);
 static void    mnodeProcessDropSuperTableRsp(SRpcMsg *rpcMsg);
-static int32_t mnodeProcessDropChildTableMsg(SMnodeMsg *pMsg);
+static int32_t mnodeProcessDropChildTableMsg(SMnodeMsg *pMsg, bool needReturn);
 static void    mnodeProcessDropChildTableRsp(SRpcMsg *rpcMsg);
 
 static int32_t mnodeProcessSuperTableVgroupMsg(SMnodeMsg *mnodeMsg);
@@ -754,7 +754,7 @@ static int32_t mnodeProcessDropTableMsg(SMnodeMsg *pMsg) {
     SChildTableObj *pCTable = (SChildTableObj *)pMsg->pTable;
     mInfo("app:%p:%p, table:%s, start to drop ctable, vgId:%d sid:%d uid:%" PRIu64, pMsg->rpcMsg.ahandle, pMsg,
           pDrop->tableId, pCTable->vgId, pCTable->sid, pCTable->uid);
-    return mnodeProcessDropChildTableMsg(pMsg);
+    return mnodeProcessDropChildTableMsg(pMsg, true);
   }
 }
 
@@ -1758,7 +1758,7 @@ static int32_t mnodeProcessCreateChildTableMsg(SMnodeMsg *pMsg) {
   }
 }
 
-static int32_t mnodeProcessDropChildTableMsg(SMnodeMsg *pMsg) {
+static int32_t mnodeProcessDropChildTableMsg(SMnodeMsg *pMsg, bool needReturn) {
   SChildTableObj *pTable = (SChildTableObj *)pMsg->pTable;
   if (pMsg->pVgroup == NULL) pMsg->pVgroup = mnodeGetVgroup(pTable->vgId);
   if (pMsg->pVgroup == NULL) {
@@ -1793,6 +1793,8 @@ static int32_t mnodeProcessDropChildTableMsg(SMnodeMsg *pMsg) {
     .msgType = TSDB_MSG_TYPE_MD_DROP_TABLE
   };
 
+  if (!needReturn) rpcMsg.ahandle = NULL;
+
   dnodeSendMsgToDnode(&ipSet, &rpcMsg);
 
   return TSDB_CODE_MND_ACTION_IN_PROGRESS;
@@ -2246,6 +2248,14 @@ static void mnodeProcessCreateChildTableRsp(SRpcMsg *rpcMsg) {
   SChildTableObj *pTable = (SChildTableObj *)mnodeMsg->pTable;
   assert(pTable);
 
+  // If the table is deleted by another thread during creation, stop creating and send drop msg to vnode
+  if (sdbCheckRowDeleted(tsChildTableSdb, pTable)) {
+    mDebug("app:%p:%p, table:%s, create table rsp received, but a deleting opertion incoming, vgId:%d sid:%d uid:%" PRIu64,
+           mnodeMsg->rpcMsg.ahandle, mnodeMsg, pTable->info.tableId, pTable->vgId, pTable->sid, pTable->uid);
+    mnodeProcessDropChildTableMsg(mnodeMsg, false);
+    rpcMsg->code = TSDB_CODE_SUCCESS;
+  }
+
   if (rpcMsg->code == TSDB_CODE_SUCCESS || rpcMsg->code == TSDB_CODE_TDB_TABLE_ALREADY_EXIST) {
     SCMCreateTableMsg *pCreate = mnodeMsg->rpcMsg.pCont;
     if (pCreate->getMeta) {
diff --git a/src/plugins/http/inc/httpCode.h b/src/plugins/http/inc/httpCode.h
index 0235040139b504077c98a4b1e2c6c8cfa31bcbbf..08111260e95e0cdc3dc417e4442528c5aa1eee3c 100644
--- a/src/plugins/http/inc/httpCode.h
+++ b/src/plugins/http/inc/httpCode.h
@@ -105,7 +105,7 @@
 #define HTTP_OP_VALUE_TYPE            79
 
 //tgf
-#define HTTP_TG_STABLE_NOT_EXIST     80
+#define HTTP_TG_STABLE_NOT_EXIST      80
 
 extern char *httpMsg[];
 
diff --git a/src/plugins/http/inc/httpInt.h b/src/plugins/http/inc/httpInt.h
index 8ca1c2ff118663dcd9cc23d3973c3f2b13673ae2..ffd621be7acf223bc002c7b49d87bad595211d2b 100644
--- a/src/plugins/http/inc/httpInt.h
+++ b/src/plugins/http/inc/httpInt.h
@@ -61,6 +61,9 @@
 #define HTTP_CHECK_BODY_CONTINUE    0
 #define HTTP_CHECK_BODY_SUCCESS     1
 
+#define HTTP_READ_DATA_SUCCESS      0
+#define HTTP_READ_DATA_FAILED       1
+
 #define HTTP_WRITE_RETRY_TIMES      500
 #define HTTP_WRITE_WAIT_TIME_MS     5
 #define HTTP_EXPIRED_TIME           60000
diff --git a/src/plugins/http/inc/httpServer.h b/src/plugins/http/inc/httpServer.h
index 04dadfe04c4d61d8d8b98403f5d8993958b0b87f..508baa6112a5e9d81e0864637b66f3aa1c21b79d 100644
--- a/src/plugins/http/inc/httpServer.h
+++ b/src/plugins/http/inc/httpServer.h
@@ -23,6 +23,6 @@ void httpCleanUpConnect();
 
 void *httpInitServer(char *ip, uint16_t port, char *label, int numOfThreads, void *fp, void *shandle);
 void httpCleanUpServer(HttpServer *pServer);
-bool httpReadDataImp(HttpContext *pContext);
+int  httpReadDataImp(HttpContext *pContext);
 
 #endif
diff --git a/src/plugins/http/src/httpHandle.c b/src/plugins/http/src/httpHandle.c
index 2c94f6195069d3b06cd5428ead0778aca8ce09f1..407d19b307e522c5c6a51b1c199d77425831481a 100644
--- a/src/plugins/http/src/httpHandle.c
+++ b/src/plugins/http/src/httpHandle.c
@@ -60,6 +60,7 @@ bool httpParseURL(HttpContext* pContext) {
   char* pSeek;
   char* pEnd = strchr(pParser->pLast, ' ');
   if (pEnd == NULL) {
+    httpSendErrorResp(pContext, HTTP_UNSUPPORT_URL);    
     return false;
   }
 
@@ -275,14 +276,14 @@ bool httpParseChunkedBody(HttpContext* pContext, HttpParser* pParser, bool test)
   return true;
 }
 
-bool httpReadChunkedBody(HttpContext* pContext, HttpParser* pParser) {
+int httpReadChunkedBody(HttpContext* pContext, HttpParser* pParser) {
   bool parsedOk = httpParseChunkedBody(pContext, pParser, true);
   if (parsedOk) {
     httpParseChunkedBody(pContext, pParser, false);
     return HTTP_CHECK_BODY_SUCCESS;
   } else {
     httpTrace("context:%p, fd:%d, ip:%s, chunked body not finished, continue read", pContext, pContext->fd, pContext->ipstr);
-    if (!httpReadDataImp(pContext)) {
+    if (httpReadDataImp(pContext) != HTTP_READ_DATA_SUCCESS) {
       httpError("context:%p, fd:%d, ip:%s, read chunked request error", pContext, pContext->fd, pContext->ipstr);
       return HTTP_CHECK_BODY_ERROR;
     } else {
@@ -296,7 +297,6 @@ int httpReadUnChunkedBody(HttpContext* pContext, HttpParser* pParser) {
   if (dataReadLen > pParser->data.len) {
     httpError("context:%p, fd:%d, ip:%s, un-chunked body length invalid, read size:%d dataReadLen:%d > pContext->data.len:%d",
               pContext, pContext->fd, pContext->ipstr, pContext->parser.bufsize, dataReadLen, pParser->data.len);
-    httpSendErrorResp(pContext, HTTP_PARSE_BODY_ERROR);
     return HTTP_CHECK_BODY_ERROR;
   } else if (dataReadLen < pParser->data.len) {
     httpTrace("context:%p, fd:%d, ip:%s, un-chunked body not finished, read size:%d dataReadLen:%d < pContext->data.len:%d, continue read",
@@ -358,20 +358,13 @@ bool httpParseRequest(HttpContext* pContext) {
 }
 
 int httpCheckReadCompleted(HttpContext* pContext) {
-  HttpParser *pParser = &pContext->parser;
+  HttpParser* pParser = &pContext->parser;
+
   if (pContext->httpChunked == HTTP_UNCUNKED) {
-    int ret = httpReadUnChunkedBody(pContext, pParser);
-    if (ret != HTTP_CHECK_BODY_SUCCESS) {
-      return ret;
-    }
+    return httpReadUnChunkedBody(pContext, pParser);
   } else {
-    int ret = httpReadChunkedBody(pContext, pParser);
-    if (ret != HTTP_CHECK_BODY_SUCCESS) {
-      return ret;
-    }
+    return httpReadChunkedBody(pContext, pParser);
   }
-
-  return HTTP_CHECK_BODY_SUCCESS;
 }
 
 bool httpDecodeRequest(HttpContext* pContext) {
diff --git a/src/plugins/http/src/httpServer.c b/src/plugins/http/src/httpServer.c
index dbe299cef7791f9c9d83cfe40a18e6817aad0482..177d447f10f27b2ba334402b4ca7ee219099999d 100644
--- a/src/plugins/http/src/httpServer.c
+++ b/src/plugins/http/src/httpServer.c
@@ -69,7 +69,7 @@ void httpCleanUpConnect() {
   httpDebug("http server:%s is cleaned up", pServer->label);
 }
 
-bool httpReadDataImp(HttpContext *pContext) {
+int httpReadDataImp(HttpContext *pContext) {
   HttpParser *pParser = &pContext->parser;
 
   while (pParser->bufsize <= (HTTP_BUFFER_SIZE - HTTP_STEP_SIZE)) {
@@ -85,8 +85,7 @@ bool httpReadDataImp(HttpContext *pContext) {
       } else {
         httpError("context:%p, fd:%d, ip:%s, read from socket error:%d, close connect",
                   pContext, pContext->fd, pContext->ipstr, errno);
-        httpReleaseContext(pContext);      
-        return false;
+        return HTTP_READ_DATA_FAILED;
       }
     } else {
       pParser->bufsize += nread;
@@ -95,15 +94,13 @@ bool httpReadDataImp(HttpContext *pContext) {
     if (pParser->bufsize >= (HTTP_BUFFER_SIZE - HTTP_STEP_SIZE)) {
       httpError("context:%p, fd:%d, ip:%s, thread:%s, request big than:%d",
                 pContext, pContext->fd, pContext->ipstr, pContext->pThread->label, HTTP_BUFFER_SIZE);
-      httpSendErrorResp(pContext, HTTP_REQUSET_TOO_BIG);
-      httpNotifyContextClose(pContext);
-      return false;
+      return HTTP_REQUSET_TOO_BIG;
     }
   }
 
   pParser->buffer[pParser->bufsize] = 0;
 
-  return true;
+  return HTTP_READ_DATA_SUCCESS;
 }
 
 static bool httpDecompressData(HttpContext *pContext) {
@@ -141,8 +138,14 @@ static bool httpReadData(HttpContext *pContext) {
     httpInitContext(pContext);
   }
 
-  if (!httpReadDataImp(pContext)) {
-    httpNotifyContextClose(pContext);
+  int32_t code = httpReadDataImp(pContext);
+  if (code != HTTP_READ_DATA_SUCCESS) {
+    if (code == HTTP_READ_DATA_FAILED) {
+      httpReleaseContext(pContext);
+    } else {
+      httpSendErrorResp(pContext, code);
+      httpNotifyContextClose(pContext);
+    }
     return false;
   }