diff --git a/include/common/tmsgdef.h b/include/common/tmsgdef.h
index a12a63583702c5b34fb0d9c8a4ab400144ec3849..f4890206fe572be40704959bb4a846f9363fb25a 100644
--- a/include/common/tmsgdef.h
+++ b/include/common/tmsgdef.h
@@ -250,8 +250,8 @@ enum {
 
   TD_NEW_MSG_SEG(TDMT_SYNC_MSG)
   TD_DEF_MSG_TYPE(TDMT_SYNC_TIMEOUT, "sync-timer", NULL, NULL)
-  TD_DEF_MSG_TYPE(TDMT_SYNC_PING, "sync-ping", NULL, NULL)
-  TD_DEF_MSG_TYPE(TDMT_SYNC_PING_REPLY, "sync-ping-reply", NULL, NULL)
+  TD_DEF_MSG_TYPE(TDMT_SYNC_PING, "sync-ping", NULL, NULL)             // no longer used
+  TD_DEF_MSG_TYPE(TDMT_SYNC_PING_REPLY, "sync-ping-reply", NULL, NULL) // no longer used
   TD_DEF_MSG_TYPE(TDMT_SYNC_CLIENT_REQUEST, "sync-client-request", NULL, NULL)
   TD_DEF_MSG_TYPE(TDMT_SYNC_CLIENT_REQUEST_BATCH, "sync-client-request-batch", NULL, NULL)
   TD_DEF_MSG_TYPE(TDMT_SYNC_CLIENT_REQUEST_REPLY, "sync-client-request-reply", NULL, NULL)
diff --git a/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c b/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
index ec4f42c847b5cc7099ec4a1b2388e0a313b9e3b0..a322f7680042383db31a0e41693ab78c610709b8 100644
--- a/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
+++ b/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
@@ -183,8 +183,6 @@ SArray *mmGetMsgHandles() {
   if (dmSetMgmtHandle(pArray, TDMT_VND_COMPACT_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
 
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_TIMEOUT, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_SYNC_PING, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_SYNC_PING_REPLY, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_CLIENT_REQUEST, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_CLIENT_REQUEST_BATCH, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_CLIENT_REQUEST_REPLY, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
diff --git a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
index 2265f58060ccdad0a94ce238528c3806ef1a1892..e15d7ac3dfa122f4204a4cd8301920ba1fba2cd1 100644
--- a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
@@ -450,8 +450,6 @@ SArray *vmGetMsgHandles() {
   if (dmSetMgmtHandle(pArray, TDMT_DND_DROP_VNODE, vmPutMsgToMgmtQueue, 0) == NULL) goto _OVER;
 
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_TIMEOUT, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_SYNC_PING, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_SYNC_PING_REPLY, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_CLIENT_REQUEST, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_CLIENT_REQUEST_BATCH, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_CLIENT_REQUEST_REPLY, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
diff --git a/source/libs/sync/test/syncConfigChangeSnapshotTest.cpp b/source/libs/sync/test/syncConfigChangeSnapshotTest.cpp
index c29def9ca33849a2aee27f859fb2e2d257cdb32a..057f2ea6dd7f38241fcc0759113e65e513d020d3 100644
--- a/source/libs/sync/test/syncConfigChangeSnapshotTest.cpp
+++ b/source/libs/sync/test/syncConfigChangeSnapshotTest.cpp
@@ -223,18 +223,18 @@ int64_t createSyncNode(int32_t replicaNum, int32_t myIndex, int32_t vgId, SWal*
 
   SSyncNode* pSyncNode = (SSyncNode*)syncNodeAcquire(rid);
   assert(pSyncNode != NULL);
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
-  gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
-
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-
-  gSyncIO->FpOnSyncSnapshot = pSyncNode->FpOnSnapshot;
-  gSyncIO->FpOnSyncSnapshotReply = pSyncNode->FpOnSnapshotReply;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  // gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
+
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+
+  // gSyncIO->FpOnSyncSnapshot = pSyncNode->FpOnSnapshot;
+  // gSyncIO->FpOnSyncSnapshotReply = pSyncNode->FpOnSnapshotReply;
 
   gSyncIO->pSyncNode = pSyncNode;
   syncNodeRelease(pSyncNode);
diff --git a/source/libs/sync/test/syncConfigChangeTest.cpp b/source/libs/sync/test/syncConfigChangeTest.cpp
index 23acadc0ccc3261cb7862ea435210b86d82c6306..bab3d2236f3a33cd40bf356cb60227a6731ef022 100644
--- a/source/libs/sync/test/syncConfigChangeTest.cpp
+++ b/source/libs/sync/test/syncConfigChangeTest.cpp
@@ -146,16 +146,16 @@ int64_t createSyncNode(int32_t replicaNum, int32_t myIndex, int32_t vgId, SWal*
 
   SSyncNode* pSyncNode = (SSyncNode*)syncNodeAcquire(rid);
   assert(pSyncNode != NULL);
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
-  gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  // gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
   gSyncIO->pSyncNode = pSyncNode;
   syncNodeRelease(pSyncNode);
 
diff --git a/source/libs/sync/test/syncElectTest.cpp b/source/libs/sync/test/syncElectTest.cpp
index 59d731c8234d827a72d27feee613139b406913fd..58c0e7d13a021a01eead75079596c98e889ca46e 100644
--- a/source/libs/sync/test/syncElectTest.cpp
+++ b/source/libs/sync/test/syncElectTest.cpp
@@ -59,15 +59,15 @@ SSyncNode* createSyncNode(int32_t replicaNum, int32_t myIndex, int32_t vgId, SWa
   SSyncNode* pSyncNode = syncNodeOpen(&syncInfo);
   assert(pSyncNode != NULL);
 
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
   gSyncIO->pSyncNode = pSyncNode;
 
   syncNodeStart(pSyncNode);
diff --git a/source/libs/sync/test/syncEnqTest.cpp b/source/libs/sync/test/syncEnqTest.cpp
index 54bfb1b38798571ef11bc214717499c0c21b4756..d2ae46a4433ebb5f3b4bac88f1136f2ee275b513 100644
--- a/source/libs/sync/test/syncEnqTest.cpp
+++ b/source/libs/sync/test/syncEnqTest.cpp
@@ -38,15 +38,15 @@ SSyncNode* syncNodeInit() {
   SSyncNode* pSyncNode = syncNodeOpen(&syncInfo);
   assert(pSyncNode != NULL);
 
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
   gSyncIO->pSyncNode = pSyncNode;
 
   return pSyncNode;
diff --git a/source/libs/sync/test/syncIOSendMsgTest.cpp b/source/libs/sync/test/syncIOSendMsgTest.cpp
index a082f9373ab1d3d7c235c2388d3d6c63939ab08d..ae74929b7ba5fdd6979a981943cec867d9f671d0 100644
--- a/source/libs/sync/test/syncIOSendMsgTest.cpp
+++ b/source/libs/sync/test/syncIOSendMsgTest.cpp
@@ -38,15 +38,15 @@ SSyncNode* syncNodeInit() {
   SSyncNode* pSyncNode = syncNodeOpen(&syncInfo);
   assert(pSyncNode != NULL);
 
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
   gSyncIO->pSyncNode = pSyncNode;
 
   return pSyncNode;
diff --git a/source/libs/sync/test/syncInitTest.cpp b/source/libs/sync/test/syncInitTest.cpp
index b15a767db50de25a1ae5060cac9c77effdd92004..1e0ff545149bd82816c18cdcdbdbe254bdb5dd82 100644
--- a/source/libs/sync/test/syncInitTest.cpp
+++ b/source/libs/sync/test/syncInitTest.cpp
@@ -38,14 +38,14 @@ SSyncNode* syncNodeInit() {
   SSyncNode* pSyncNode = syncNodeOpen(&syncInfo);
   assert(pSyncNode != NULL);
 
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
   gSyncIO->pSyncNode = pSyncNode;
 
   return pSyncNode;
diff --git a/source/libs/sync/test/syncPingSelfTest.cpp b/source/libs/sync/test/syncPingSelfTest.cpp
index 19f377e037e576274f51d7e134f06b7cc76168be..975565770a813e7c1fdba923c3a449a3d6d5b695 100644
--- a/source/libs/sync/test/syncPingSelfTest.cpp
+++ b/source/libs/sync/test/syncPingSelfTest.cpp
@@ -39,14 +39,14 @@ SSyncNode* syncNodeInit() {
   SSyncNode* pSyncNode = syncNodeOpen(&syncInfo);
   assert(pSyncNode != NULL);
 
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
   gSyncIO->pSyncNode = pSyncNode;
 
   return pSyncNode;
diff --git a/source/libs/sync/test/syncPingTimerTest.cpp b/source/libs/sync/test/syncPingTimerTest.cpp
index ded7e22eace10f9574b3bc75d058e00cd497916d..8aa4e9dada40a8546e3be99d86750cc2125c1efb 100644
--- a/source/libs/sync/test/syncPingTimerTest.cpp
+++ b/source/libs/sync/test/syncPingTimerTest.cpp
@@ -39,14 +39,14 @@ SSyncNode* syncNodeInit() {
   SSyncNode* pSyncNode = syncNodeOpen(&syncInfo);
   assert(pSyncNode != NULL);
 
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
   gSyncIO->pSyncNode = pSyncNode;
 
   return pSyncNode;
diff --git a/source/libs/sync/test/syncPingTimerTest2.cpp b/source/libs/sync/test/syncPingTimerTest2.cpp
index 4f1bb64798508c1bca1f7b434e11cdc1c467338d..e77358f37533de2c98c81afab9163774e4743233 100644
--- a/source/libs/sync/test/syncPingTimerTest2.cpp
+++ b/source/libs/sync/test/syncPingTimerTest2.cpp
@@ -39,14 +39,14 @@ SSyncNode* syncNodeInit() {
   SSyncNode* pSyncNode = syncNodeOpen(&syncInfo);
   assert(pSyncNode != NULL);
 
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
   gSyncIO->pSyncNode = pSyncNode;
 
   return pSyncNode;
diff --git a/source/libs/sync/test/syncReplicateTest.cpp b/source/libs/sync/test/syncReplicateTest.cpp
index 2419ec0974b1b96f2eb5b756c16aed6c2cf3fd50..4a82bba15d959f545a333d84a4af8ed7b62e0225 100644
--- a/source/libs/sync/test/syncReplicateTest.cpp
+++ b/source/libs/sync/test/syncReplicateTest.cpp
@@ -120,16 +120,16 @@ int64_t createSyncNode(int32_t replicaNum, int32_t myIndex, int32_t vgId, SWal*
 
   SSyncNode* pSyncNode = (SSyncNode*)syncNodeAcquire(rid);
   assert(pSyncNode != NULL);
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
-  gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  // gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
   gSyncIO->pSyncNode = pSyncNode;
   syncNodeRelease(pSyncNode);
 
diff --git a/source/libs/sync/test/syncSnapshotTest.cpp b/source/libs/sync/test/syncSnapshotTest.cpp
index 40eac0b55f48c78d0b67008cf00f322a57059362..15854eeca65d4c79715e3bc5b8c2a12168fbe783 100644
--- a/source/libs/sync/test/syncSnapshotTest.cpp
+++ b/source/libs/sync/test/syncSnapshotTest.cpp
@@ -116,14 +116,14 @@ SSyncNode *syncNodeInit() {
   SSyncNode *pSyncNode = syncNodeOpen(&syncInfo);
   assert(pSyncNode != NULL);
 
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
   gSyncIO->pSyncNode = pSyncNode;
 
   syncNodeStart(pSyncNode);
diff --git a/source/libs/sync/test/syncTestTool.cpp b/source/libs/sync/test/syncTestTool.cpp
index e8d40d5054fe4e560faa498a49d85a490f6226bc..8c486df118f26b53264d8830b9d3bfc8292adb14 100644
--- a/source/libs/sync/test/syncTestTool.cpp
+++ b/source/libs/sync/test/syncTestTool.cpp
@@ -257,16 +257,16 @@ int64_t createSyncNode(int32_t replicaNum, int32_t myIndex, int32_t vgId, SWal*
 
   SSyncNode* pSyncNode = (SSyncNode*)syncNodeAcquire(rid);
   assert(pSyncNode != NULL);
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
-  gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncSnapshot = pSyncNode->FpOnSnapshot;
-  gSyncIO->FpOnSyncSnapshotReply = pSyncNode->FpOnSnapshotReply;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  // gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncSnapshot = pSyncNode->FpOnSnapshot;
+  // gSyncIO->FpOnSyncSnapshotReply = pSyncNode->FpOnSnapshotReply;
 
   gSyncIO->pSyncNode = pSyncNode;
   syncNodeRelease(pSyncNode);
diff --git a/source/libs/sync/test/syncVotesGrantedTest.cpp b/source/libs/sync/test/syncVotesGrantedTest.cpp
index 2d2a12c6566ab7566609aa714c888332672493e1..67573a6a378d6d38e39826d502ab965d6dc0e209 100644
--- a/source/libs/sync/test/syncVotesGrantedTest.cpp
+++ b/source/libs/sync/test/syncVotesGrantedTest.cpp
@@ -39,14 +39,14 @@ SSyncNode* syncNodeInit() {
   pSyncNode = syncNodeOpen(&syncInfo);
   assert(pSyncNode != NULL);
 
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
   gSyncIO->pSyncNode = pSyncNode;
 
   return pSyncNode;
diff --git a/source/libs/sync/test/syncVotesRespondTest.cpp b/source/libs/sync/test/syncVotesRespondTest.cpp
index 712e97edc978748dc7514bb7577f96ac118fd887..3a0dac98b0f1dc8dc677a5c52149f1a317ae3ed6 100644
--- a/source/libs/sync/test/syncVotesRespondTest.cpp
+++ b/source/libs/sync/test/syncVotesRespondTest.cpp
@@ -40,14 +40,14 @@ SSyncNode* syncNodeInit() {
   pSyncNode = syncNodeOpen(&syncInfo);
   assert(pSyncNode != NULL);
 
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
   gSyncIO->pSyncNode = pSyncNode;
 
   return pSyncNode;
diff --git a/source/libs/sync/test/syncWriteTest.cpp b/source/libs/sync/test/syncWriteTest.cpp
index 56dd0a5845e0f9d8d7c301549a36bbd7c576971a..aae18626810b5a50c3dee509b4b7d2735efe3ac5 100644
--- a/source/libs/sync/test/syncWriteTest.cpp
+++ b/source/libs/sync/test/syncWriteTest.cpp
@@ -94,14 +94,14 @@ SSyncNode *syncNodeInit() {
   SSyncNode *pSyncNode = syncNodeOpen(&syncInfo);
   assert(pSyncNode != NULL);
 
-  gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
-  gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
-  gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
-  gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
-  gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
-  gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
-  gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
-  gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
+  // gSyncIO->FpOnSyncPing = pSyncNode->FpOnPing;
+  // gSyncIO->FpOnSyncClientRequest = pSyncNode->FpOnClientRequest;
+  // gSyncIO->FpOnSyncPingReply = pSyncNode->FpOnPingReply;
+  // gSyncIO->FpOnSyncRequestVote = pSyncNode->FpOnRequestVote;
+  // gSyncIO->FpOnSyncRequestVoteReply = pSyncNode->FpOnRequestVoteReply;
+  // gSyncIO->FpOnSyncAppendEntries = pSyncNode->FpOnAppendEntries;
+  // gSyncIO->FpOnSyncAppendEntriesReply = pSyncNode->FpOnAppendEntriesReply;
+  // gSyncIO->FpOnSyncTimeout = pSyncNode->FpOnTimeout;
   gSyncIO->pSyncNode = pSyncNode;
 
   syncNodeStart(pSyncNode);
diff --git a/source/libs/sync/test/sync_test_lib/inc/syncIO.h b/source/libs/sync/test/sync_test_lib/inc/syncIO.h
index 955a832b6862321b723e422f6969be8bc798f653..2c5e19d863c4ad439d8ee998561a261882ed2500 100644
--- a/source/libs/sync/test/sync_test_lib/inc/syncIO.h
+++ b/source/libs/sync/test/sync_test_lib/inc/syncIO.h
@@ -25,6 +25,7 @@ extern "C" {
 #include <stdlib.h>
 #include "os.h"
 #include "syncInt.h"
+#include "syncTest.h"
 #include "taosdef.h"
 #include "tqueue.h"
 #include "trpc.h"
@@ -32,6 +33,9 @@ extern "C" {
 #define TICK_Q_TIMER_MS    1000
 #define TICK_Ping_TIMER_MS 1000
 
+typedef struct SyncPing      SyncPing;
+typedef struct SyncPingReply SyncPingReply;
+
 typedef struct SSyncIO {
   STaosQueue *pMsgQ;
   STaosQset  *pQset;
diff --git a/source/libs/sync/test/sync_test_lib/inc/syncTest.h b/source/libs/sync/test/sync_test_lib/inc/syncTest.h
index c02e3013d1fdf2e0c2d7d4b1f685917796cbecbd..f531304178faa1f5efbbe587d3a42ec344369f52 100644
--- a/source/libs/sync/test/sync_test_lib/inc/syncTest.h
+++ b/source/libs/sync/test/sync_test_lib/inc/syncTest.h
@@ -213,7 +213,6 @@ int32_t syncNodePingSelf(SSyncNode* pSyncNode);
 int32_t syncNodePingPeers(SSyncNode* pSyncNode);
 int32_t syncNodePingAll(SSyncNode* pSyncNode);
 
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/libs/sync/test/sync_test_lib/src/syncMainDebug.c b/source/libs/sync/test/sync_test_lib/src/syncMainDebug.c
index b7a9d86eccb6aef0966ce4c25b745de092a50941..6b461da0e562ed1c153003f1cd7d098699d88737 100644
--- a/source/libs/sync/test/sync_test_lib/src/syncMainDebug.c
+++ b/source/libs/sync/test/sync_test_lib/src/syncMainDebug.c
@@ -138,20 +138,20 @@ cJSON* syncNode2Json(const SSyncNode* pSyncNode) {
     cJSON_AddStringToObject(pRoot, "heartbeatTimerCounter", u64buf);
 
     // callback
-    snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnPing);
-    cJSON_AddStringToObject(pRoot, "FpOnPing", u64buf);
-    snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnPingReply);
-    cJSON_AddStringToObject(pRoot, "FpOnPingReply", u64buf);
-    snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnRequestVote);
-    cJSON_AddStringToObject(pRoot, "FpOnRequestVote", u64buf);
-    snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnRequestVoteReply);
-    cJSON_AddStringToObject(pRoot, "FpOnRequestVoteReply", u64buf);
-    snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnAppendEntries);
-    cJSON_AddStringToObject(pRoot, "FpOnAppendEntries", u64buf);
-    snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnAppendEntriesReply);
-    cJSON_AddStringToObject(pRoot, "FpOnAppendEntriesReply", u64buf);
-    snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnTimeout);
-    cJSON_AddStringToObject(pRoot, "FpOnTimeout", u64buf);
+    // snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnPing);
+    // cJSON_AddStringToObject(pRoot, "FpOnPing", u64buf);
+    // snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnPingReply);
+    // cJSON_AddStringToObject(pRoot, "FpOnPingReply", u64buf);
+    // snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnRequestVote);
+    // cJSON_AddStringToObject(pRoot, "FpOnRequestVote", u64buf);
+    // snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnRequestVoteReply);
+    // cJSON_AddStringToObject(pRoot, "FpOnRequestVoteReply", u64buf);
+    // snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnAppendEntries);
+    // cJSON_AddStringToObject(pRoot, "FpOnAppendEntries", u64buf);
+    // snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnAppendEntriesReply);
+    // cJSON_AddStringToObject(pRoot, "FpOnAppendEntriesReply", u64buf);
+    // snprintf(u64buf, sizeof(u64buf), "%p", pSyncNode->FpOnTimeout);
+    // cJSON_AddStringToObject(pRoot, "FpOnTimeout", u64buf);
 
     // restoreFinish
     cJSON_AddNumberToObject(pRoot, "restoreFinish", pSyncNode->restoreFinish);