diff --git a/src/dnode/src/dnodeVRead.c b/src/dnode/src/dnodeVRead.c
index 2f9e9a0af9d6e573892a8e8cd01e3075b2a2bf7b..cd18ae6ddabfdfd093126dc84adf89591cf68648 100644
--- a/src/dnode/src/dnodeVRead.c
+++ b/src/dnode/src/dnodeVRead.c
@@ -26,13 +26,6 @@
 #include "dnodeVRead.h"
 #include "vnode.h"
 
-typedef struct {
-  SRspRet  rspRet;
-  void    *pCont;
-  int32_t  contLen;
-  SRpcMsg  rpcMsg;
-} SReadMsg;
-
 typedef struct {
   pthread_t  thread;    // thread
   int32_t    workerId;  // worker ID
@@ -218,7 +211,7 @@ static void *dnodeProcessReadQueue(void *param) {
     }
 
     dTrace("%p, msg:%s will be processed in vread queue", pReadMsg->rpcMsg.ahandle, taosMsg[pReadMsg->rpcMsg.msgType]);
-    int32_t code = vnodeProcessRead(pVnode, pReadMsg->rpcMsg.msgType, pReadMsg->pCont, pReadMsg->contLen, &pReadMsg->rspRet);
+    int32_t code = vnodeProcessRead(pVnode, pReadMsg);
     dnodeSendRpcReadRsp(pVnode, pReadMsg, code);
     taosFreeQitem(pReadMsg);
   }
diff --git a/src/inc/vnode.h b/src/inc/vnode.h
index 069f99263deeddfe0794437aa010b2b330dd4db9..0da1f51e27fc8ba882a6c7d60ccfdaf0245e83dc 100644
--- a/src/inc/vnode.h
+++ b/src/inc/vnode.h
@@ -34,6 +34,13 @@ typedef struct {
   void *qhandle; //used by query and retrieve msg
 } SRspRet;
 
+typedef struct {
+  SRspRet  rspRet;
+  void    *pCont;
+  int32_t  contLen;
+  SRpcMsg  rpcMsg;
+} SReadMsg;
+
 int32_t vnodeCreate(SMDCreateVnodeMsg *pVnodeCfg);
 int32_t vnodeDrop(int32_t vgId);
 int32_t vnodeOpen(int32_t vgId, char *rootDir);
@@ -52,7 +59,7 @@ void*   vnodeGetWal(void *pVnode);
 int32_t vnodeProcessWrite(void *pVnode, int qtype, void *pHead, void *item);
 void    vnodeBuildStatusMsg(void * param);
 
-int32_t vnodeProcessRead(void *pVnode, int msgType, void *pCont, int32_t contLen, SRspRet *ret);
+int32_t vnodeProcessRead(void *pVnode, SReadMsg *pReadMsg);
 
 #ifdef __cplusplus
 }
diff --git a/src/vnode/src/vnodeRead.c b/src/vnode/src/vnodeRead.c
index f198c2ffe417ae918b14e291b7390466c62b11a5..974697d057ef92968ae838c9708c732393505ea5 100644
--- a/src/vnode/src/vnodeRead.c
+++ b/src/vnode/src/vnodeRead.c
@@ -27,17 +27,18 @@
 #include "vnodeLog.h"
 #include "query.h"
 
-static int32_t (*vnodeProcessReadMsgFp[TSDB_MSG_TYPE_MAX])(SVnodeObj *, void *pCont, int32_t contLen, SRspRet *pRet);
-static int32_t  vnodeProcessQueryMsg(SVnodeObj *pVnode, void *pCont, int32_t contLen, SRspRet *pRet);
-static int32_t  vnodeProcessFetchMsg(SVnodeObj *pVnode, void *pCont, int32_t contLen, SRspRet *pRet);
+static int32_t (*vnodeProcessReadMsgFp[TSDB_MSG_TYPE_MAX])(SVnodeObj *pVnode, SReadMsg *pReadMsg);
+static int32_t  vnodeProcessQueryMsg(SVnodeObj *pVnode, SReadMsg *pReadMsg);
+static int32_t  vnodeProcessFetchMsg(SVnodeObj *pVnode, SReadMsg *pReadMsg);
 
 void vnodeInitReadFp(void) {
   vnodeProcessReadMsgFp[TSDB_MSG_TYPE_QUERY] = vnodeProcessQueryMsg;
   vnodeProcessReadMsgFp[TSDB_MSG_TYPE_FETCH] = vnodeProcessFetchMsg;
 }
 
-int32_t vnodeProcessRead(void *param, int msgType, void *pCont, int32_t contLen, SRspRet *ret) {
+int32_t vnodeProcessRead(void *param, SReadMsg *pReadMsg) {
   SVnodeObj *pVnode = (SVnodeObj *)param;
+  int msgType = pReadMsg->rpcMsg.msgType;
 
   if (vnodeProcessReadMsgFp[msgType] == NULL) {
     vTrace("vgId:%d, msgType:%s not processed, no handle", pVnode->vgId, taosMsg[msgType]);
@@ -55,10 +56,14 @@ int32_t vnodeProcessRead(void *param, int msgType, void *pCont, int32_t contLen,
     return TSDB_CODE_RPC_NOT_READY;
   }
 
-  return (*vnodeProcessReadMsgFp[msgType])(pVnode, pCont, contLen, ret);
+  return (*vnodeProcessReadMsgFp[msgType])(pVnode, pReadMsg);
 }
 
-static int32_t vnodeProcessQueryMsg(SVnodeObj *pVnode, void *pCont, int32_t contLen, SRspRet *pRet) {
+static int32_t vnodeProcessQueryMsg(SVnodeObj *pVnode, SReadMsg *pReadMsg) {
+  void *   pCont = pReadMsg->pCont;
+  int32_t  contLen = pReadMsg->contLen;
+  SRspRet *pRet = &pReadMsg->rspRet;
+
   SQueryTableMsg* pQueryTableMsg = (SQueryTableMsg*) pCont;
   memset(pRet, 0, sizeof(SRspRet));
 
@@ -91,7 +96,10 @@ static int32_t vnodeProcessQueryMsg(SVnodeObj *pVnode, void *pCont, int32_t cont
   return code;
 }
 
-static int32_t vnodeProcessFetchMsg(SVnodeObj *pVnode, void *pCont, int32_t contLen, SRspRet *pRet) {
+static int32_t vnodeProcessFetchMsg(SVnodeObj *pVnode, SReadMsg *pReadMsg) {
+  void *   pCont = pReadMsg->pCont;
+  SRspRet *pRet = &pReadMsg->rspRet;
+
   SRetrieveTableMsg *pRetrieve = pCont;
   void *pQInfo = (void*) htobe64(pRetrieve->qhandle);
   memset(pRet, 0, sizeof(SRspRet));