diff --git a/include/libs/sync/sync.h b/include/libs/sync/sync.h
index dd2157655c2245acbe78a5723ebc7fa966992c09..454a2ecfa83e95ecd1c0ef3179e31013f1a5aebc 100644
--- a/include/libs/sync/sync.h
+++ b/include/libs/sync/sync.h
@@ -24,10 +24,10 @@ extern "C" {
 #include "taosdef.h"
 #include "wal.h"
 
-typedef uint32_t SyncNodeId;
-typedef int32_t  SyncGroupId;
-typedef int64_t  SyncIndex;
-typedef uint64_t SyncTerm;
+typedef int64_t SyncNodeId;
+typedef int32_t SyncGroupId;
+typedef int64_t   SyncIndex;
+typedef uint64_t SSyncTerm;
 
 typedef enum {
   TAOS_SYNC_ROLE_FOLLOWER = 0,
@@ -41,9 +41,8 @@ typedef struct {
 } SSyncBuffer;
 
 typedef struct {
-  SyncNodeId nodeId;                   // node ID assigned by TDengine
-  uint16_t   nodePort;                 // node sync Port
-  char       nodeFqdn[TSDB_FQDN_LEN];  // node FQDN
+  uint16_t  nodePort;  // node sync Port
+  char      nodeFqdn[TSDB_FQDN_LEN]; // node FQDN  
 } SNodeInfo;
 
 typedef struct {
@@ -53,9 +52,9 @@ typedef struct {
 } SSyncCluster;
 
 typedef struct {
-  int32_t     selfIndex;
-  int         nNode;
-  SyncNodeId* nodeId;
+  int32_t  selfIndex;
+  int nNode;
+  SNodeInfo* node;
   ESyncRole*  role;
 } SNodesRole;
 
@@ -85,8 +84,8 @@ typedef struct SSyncFSM {
 } SSyncFSM;
 
 typedef struct SSyncServerState {
-  SyncNodeId voteFor;
-  SyncTerm   term;
+  SNodeInfo voteFor;
+  SSyncTerm term;
 } SSyncServerState;
 
 typedef struct SStateManager {
@@ -106,8 +105,8 @@ typedef struct {
 
   twalh walHandle;
 
-  SyncIndex    snapshotIndex;  // initial version
-  SSyncCluster syncCfg;        // configuration from mgmt
+  SyncIndex snapshotIndex;
+  SSyncCluster syncCfg;
 
   SSyncFSM fsm;
 
@@ -122,7 +121,11 @@ void       syncStop(SyncNodeId);
 
 int32_t syncPropose(SyncNodeId nodeId, SSyncBuffer buffer, void* pData, bool isWeak);
 
-extern int32_t syncDebugFlag;
+int32_t syncAddNode(SyncNodeId nodeId, const SNodeInfo *pNode);
+
+int32_t syncRemoveNode(SyncNodeId nodeId, const SNodeInfo *pNode);
+
+extern int32_t  syncDebugFlag;
 
 #ifdef __cplusplus
 }
diff --git a/source/server/dnode/src/dnodeTrans.c b/source/server/dnode/src/dnodeTrans.c
index e109e2ce9d1a67b081578bec20cfe68e11403628..4eba31ab68feb97576cf4104a0da1e84fb926ea8 100644
--- a/source/server/dnode/src/dnodeTrans.c
+++ b/source/server/dnode/src/dnodeTrans.c
@@ -96,8 +96,12 @@ static int32_t dnodeInitServer() {
   tsTrans.peerMsgFp[TSDB_MSG_TYPE_DM_GRANT] = mnodeProcessMsg;
   tsTrans.peerMsgFp[TSDB_MSG_TYPE_DM_STATUS] = mnodeProcessMsg;
 
-  tsTrans.peerMsgFp[TSDB_MSG_TYPE_MQ_CONNECT] = vnodeProcessMsg;
-  tsTrans.peerMsgFp[TSDB_MSG_TYPE_MQ_CONSUME] = vnodeProcessMsg;
+  tsTrans.peerMsgFp[TSDB_MSG_TYPE_MQ_CONNECT]    = vnodeProcessMsg;
+  tsTrans.peerMsgFp[TSDB_MSG_TYPE_MQ_DISCONNECT] = vnodeProcessMsg;
+  tsTrans.peerMsgFp[TSDB_MSG_TYPE_MQ_ACK]        = vnodeProcessMsg;
+  tsTrans.peerMsgFp[TSDB_MSG_TYPE_MQ_RESET]      = vnodeProcessMsg;
+  tsTrans.peerMsgFp[TSDB_MSG_TYPE_MQ_CONSUME]    = vnodeProcessMsg;
+  tsTrans.peerMsgFp[TSDB_MSG_TYPE_MQ_QUERY]      = vnodeProcessMsg;
 
   SRpcInit rpcInit;
   memset(&rpcInit, 0, sizeof(rpcInit));
@@ -143,6 +147,7 @@ static void dnodeProcessPeerRsp(SRpcMsg *pMsg, SRpcEpSet *pEpSet) {
 
   RpcMsgFp fp = tsTrans.peerMsgFp[msgType];
   if (fp != NULL) {
+    dTrace("RPC %p, peer rsp:%s will be processed", pMsg->handle, taosMsg[msgType]);
     (*fp)(pMsg);
   } else {
     dDebug("RPC %p, peer rsp:%s not processed", pMsg->handle, taosMsg[msgType]);
diff --git a/source/server/vnode/src/vnodeInt.c b/source/server/vnode/src/vnodeInt.c
index 9c09a991e40d671d87279f981f6d63d36ead07e3..7ec5200e5d961aa86c87f58a41f85109a59e7aa1 100644
--- a/source/server/vnode/src/vnodeInt.c
+++ b/source/server/vnode/src/vnodeInt.c
@@ -812,13 +812,11 @@ static void vnodeInitMsgFp() {
   tsVnode.msgFp[TSDB_MSG_TYPE_MQ_DISCONNECT]    = vnodeProcessWriteMsg;
   tsVnode.msgFp[TSDB_MSG_TYPE_MQ_ACK]           = vnodeProcessWriteMsg;
   tsVnode.msgFp[TSDB_MSG_TYPE_MQ_RESET]         = vnodeProcessWriteMsg;
-  //mq related end
-  tsVnode.msgFp[TSDB_MSG_TYPE_QUERY]            = vnodeProcessReadMsg;
-  tsVnode.msgFp[TSDB_MSG_TYPE_FETCH]            = vnodeProcessReadMsg;
-  //mq related
   tsVnode.msgFp[TSDB_MSG_TYPE_MQ_QUERY]         = vnodeProcessReadMsg;
   tsVnode.msgFp[TSDB_MSG_TYPE_MQ_CONSUME]       = vnodeProcessReadMsg;
   //mq related end
+  tsVnode.msgFp[TSDB_MSG_TYPE_QUERY]            = vnodeProcessReadMsg;
+  tsVnode.msgFp[TSDB_MSG_TYPE_FETCH]            = vnodeProcessReadMsg;
 }
 
 void vnodeProcessMsg(SRpcMsg *pMsg) {
diff --git a/source/server/vnode/src/vnodeReadMsg.c b/source/server/vnode/src/vnodeReadMsg.c
index 419a1f73b697099793097435e8b66f9e42c369de..21ecde332646d0af23970b1e456b0379480aff9e 100644
--- a/source/server/vnode/src/vnodeReadMsg.c
+++ b/source/server/vnode/src/vnodeReadMsg.c
@@ -236,6 +236,7 @@ int32_t vnodeProcessConsumeMsg(SVnode *pVnode, SReadMsg *pRead) {
   //fetch or register context
   tqFetchMsg(pHandle, pRead);
   //judge mode, tail read or catch up read
+  /*int64_t lastVer = walLastVer(pVnode->wal);*/
   //launch new query
   return 0;
 }