diff --git a/source/libs/sync/inc/syncMessage.h b/source/libs/sync/inc/syncMessage.h
index 6231cb83990f8a4d1920c2f70fbdebb1f6e70be6..cbe45e07d4fc51b8340e0a47cf1f177a06f2b661 100644
--- a/source/libs/sync/inc/syncMessage.h
+++ b/source/libs/sync/inc/syncMessage.h
@@ -83,7 +83,7 @@ typedef struct SyncPing {
   char     data[];
 } SyncPing;
 
-#define SYNC_PING_FIX_LEN (sizeof(uint32_t) + sizeof(uint32_t) + sizeof(SRaftId) + sizeof(SRaftId) + sizeof(uint32_t))
+//#define SYNC_PING_FIX_LEN (sizeof(uint32_t) + sizeof(uint32_t) + sizeof(SRaftId) + sizeof(SRaftId) + sizeof(uint32_t))
 
 SyncPing* syncPingBuild(uint32_t dataLen);
 void      syncPingDestroy(SyncPing* pMsg);
diff --git a/source/libs/sync/inc/syncRaftEntry.h b/source/libs/sync/inc/syncRaftEntry.h
index be25675db4a224344fd50defeed612b0d4efddec..e471488f5ce25ef4fcc332d7793df3636fcaa08b 100644
--- a/source/libs/sync/inc/syncRaftEntry.h
+++ b/source/libs/sync/inc/syncRaftEntry.h
@@ -46,8 +46,12 @@ char*           syncEntrySerialize(const SSyncRaftEntry* pEntry, uint32_t* len);
 SSyncRaftEntry* syncEntryDeserialize(const char* buf, uint32_t len);
 cJSON*          syncEntry2Json(const SSyncRaftEntry* pEntry);
 char*           syncEntry2Str(const SSyncRaftEntry* pEntry);
-void            syncEntryPrint(const SSyncRaftEntry* pEntry);
-void            syncEntryPrint2(char *s, const SSyncRaftEntry* pEntry);
+
+// for debug
+void syncEntryPrint(const SSyncRaftEntry* pEntry);
+void syncEntryPrint2(char* s, const SSyncRaftEntry* pEntry);
+void syncEntryLog(const SSyncRaftEntry* pEntry);
+void syncEntryLog2(char* s, const SSyncRaftEntry* pEntry);
 
 #ifdef __cplusplus
 }
diff --git a/source/libs/sync/inc/syncRaftLog.h b/source/libs/sync/inc/syncRaftLog.h
index d59b3206b595752c0d3c045c6003f325f12de8b9..59b5fa94db355052db4737ec006565f58b18aa5a 100644
--- a/source/libs/sync/inc/syncRaftLog.h
+++ b/source/libs/sync/inc/syncRaftLog.h
@@ -32,39 +32,24 @@ typedef struct SSyncLogStoreData {
   SWal*      pWal;
 } SSyncLogStoreData;
 
-SSyncLogStore* logStoreCreate(SSyncNode* pSyncNode);
-
-void logStoreDestory(SSyncLogStore* pLogStore);
-
-// append one log entry
-int32_t logStoreAppendEntry(SSyncLogStore* pLogStore, SSyncRaftEntry* pEntry);
-
-// get one log entry, user need to free pEntry->pCont
+SSyncLogStore*  logStoreCreate(SSyncNode* pSyncNode);
+void            logStoreDestory(SSyncLogStore* pLogStore);
+int32_t         logStoreAppendEntry(SSyncLogStore* pLogStore, SSyncRaftEntry* pEntry);
 SSyncRaftEntry* logStoreGetEntry(SSyncLogStore* pLogStore, SyncIndex index);
-
-// truncate log with index, entries after the given index (>=index) will be deleted
-int32_t logStoreTruncate(SSyncLogStore* pLogStore, SyncIndex fromIndex);
-
-// return index of last entry
-SyncIndex logStoreLastIndex(SSyncLogStore* pLogStore);
-
-// return term of last entry
-SyncTerm logStoreLastTerm(SSyncLogStore* pLogStore);
-
-// update log store commit index with "index"
-int32_t logStoreUpdateCommitIndex(SSyncLogStore* pLogStore, SyncIndex index);
-
-// return commit index of log
-SyncIndex logStoreGetCommitIndex(SSyncLogStore* pLogStore);
-
+int32_t         logStoreTruncate(SSyncLogStore* pLogStore, SyncIndex fromIndex);
+SyncIndex       logStoreLastIndex(SSyncLogStore* pLogStore);
+SyncTerm        logStoreLastTerm(SSyncLogStore* pLogStore);
+int32_t         logStoreUpdateCommitIndex(SSyncLogStore* pLogStore, SyncIndex index);
+SyncIndex       logStoreGetCommitIndex(SSyncLogStore* pLogStore);
 SSyncRaftEntry* logStoreGetLastEntry(SSyncLogStore* pLogStore);
-
-cJSON* logStore2Json(SSyncLogStore* pLogStore);
-
-char* logStore2Str(SSyncLogStore* pLogStore);
+cJSON*          logStore2Json(SSyncLogStore* pLogStore);
+char*           logStore2Str(SSyncLogStore* pLogStore);
 
 // for debug
 void logStorePrint(SSyncLogStore* pLogStore);
+void logStorePrint2(char* s, SSyncLogStore* pLogStore);
+void logStoreLog(SSyncLogStore* pLogStore);
+void logStoreLog2(char* s, SSyncLogStore* pLogStore);
 
 #ifdef __cplusplus
 }
diff --git a/source/libs/sync/src/syncMessage.c b/source/libs/sync/src/syncMessage.c
index baef49d748f54f3119bf7a6718394cfd8abf8de5..4afe14b47522790f30620142f0dc255993c1fb14 100644
--- a/source/libs/sync/src/syncMessage.c
+++ b/source/libs/sync/src/syncMessage.c
@@ -150,7 +150,7 @@ SyncTimeout* syncTimeoutBuild2(ESyncTimeoutType timeoutType, uint64_t logicClock
 
 // ---- message process SyncPing----
 SyncPing* syncPingBuild(uint32_t dataLen) {
-  uint32_t  bytes = SYNC_PING_FIX_LEN + dataLen;
+  uint32_t  bytes = sizeof(SyncPing) + dataLen;
   SyncPing* pMsg = malloc(bytes);
   memset(pMsg, 0, bytes);
   pMsg->bytes = bytes;
@@ -173,7 +173,7 @@ void syncPingSerialize(const SyncPing* pMsg, char* buf, uint32_t bufLen) {
 void syncPingDeserialize(const char* buf, uint32_t len, SyncPing* pMsg) {
   memcpy(pMsg, buf, len);
   assert(len == pMsg->bytes);
-  assert(pMsg->bytes == SYNC_PING_FIX_LEN + pMsg->dataLen);
+  assert(pMsg->bytes == sizeof(SyncPing) + pMsg->dataLen);
 }
 
 void syncPing2RpcMsg(const SyncPing* pMsg, SRpcMsg* pRpcMsg) {
@@ -272,7 +272,7 @@ void syncPingReplySerialize(const SyncPingReply* pMsg, char* buf, uint32_t bufLe
 void syncPingReplyDeserialize(const char* buf, uint32_t len, SyncPingReply* pMsg) {
   memcpy(pMsg, buf, len);
   assert(len == pMsg->bytes);
-  assert(pMsg->bytes == SYNC_PING_FIX_LEN + pMsg->dataLen);
+  assert(pMsg->bytes == sizeof(SyncPing) + pMsg->dataLen);
 }
 
 void syncPingReply2RpcMsg(const SyncPingReply* pMsg, SRpcMsg* pRpcMsg) {
diff --git a/source/libs/sync/src/syncRaftEntry.c b/source/libs/sync/src/syncRaftEntry.c
index 959bf49ee7232bd931c29e5a01f35deaa6c9d868..d2feb98c90d345e8f4f3cbaec30d650e1df2a6e8 100644
--- a/source/libs/sync/src/syncRaftEntry.c
+++ b/source/libs/sync/src/syncRaftEntry.c
@@ -104,14 +104,29 @@ char* syncEntry2Str(const SSyncRaftEntry* pEntry) {
   return serialized;
 }
 
+// for debug -----------
 void syncEntryPrint(const SSyncRaftEntry* pEntry) {
-  char* s = syncEntry2Str(pEntry);
-  sTrace("%s", s);
-  free(s);
+  char* serialized = syncEntry2Str(pEntry);
+  printf("syncEntryPrint | len:%lu | %s \n", strlen(serialized), serialized);
+  fflush(NULL);
+  free(serialized);
 }
 
 void syncEntryPrint2(char* s, const SSyncRaftEntry* pEntry) {
-  char* ss = syncEntry2Str(pEntry);
-  sTrace("%s | %s", s, ss);
-  free(ss);
+  char* serialized = syncEntry2Str(pEntry);
+  printf("syncEntryPrint | len:%lu | %s | %s \n", strlen(serialized), s, serialized);
+  fflush(NULL);
+  free(serialized);
+}
+
+void syncEntryLog(const SSyncRaftEntry* pEntry) {
+  char* serialized = syncEntry2Str(pEntry);
+  sTrace("syncEntryPrint | len:%lu | %s", strlen(serialized), serialized);
+  free(serialized);
+}
+
+void syncEntryLog2(char* s, const SSyncRaftEntry* pEntry) {
+  char* serialized = syncEntry2Str(pEntry);
+  sTrace("syncEntryPrint | len:%lu | %s | %s", strlen(serialized), s, serialized);
+  free(serialized);
 }
\ No newline at end of file
diff --git a/source/libs/sync/src/syncRaftLog.c b/source/libs/sync/src/syncRaftLog.c
index d177d3ac9b8a3a66001453236e7309a747f1e802..27c8a26154e3ef11f5eca2fd118c51b00cc80c91 100644
--- a/source/libs/sync/src/syncRaftLog.c
+++ b/source/libs/sync/src/syncRaftLog.c
@@ -43,7 +43,6 @@ void logStoreDestory(SSyncLogStore* pLogStore) {
   }
 }
 
-// append one log entry
 int32_t logStoreAppendEntry(SSyncLogStore* pLogStore, SSyncRaftEntry* pEntry) {
   SSyncLogStoreData* pData = pLogStore->data;
   SWal*              pWal = pData->pWal;
@@ -61,7 +60,6 @@ int32_t logStoreAppendEntry(SSyncLogStore* pLogStore, SSyncRaftEntry* pEntry) {
   free(serialized);
 }
 
-// get one log entry, user need to free pEntry->pCont
 SSyncRaftEntry* logStoreGetEntry(SSyncLogStore* pLogStore, SyncIndex index) {
   SSyncLogStoreData* pData = pLogStore->data;
   SWal*              pWal = pData->pWal;
@@ -77,14 +75,12 @@ SSyncRaftEntry* logStoreGetEntry(SSyncLogStore* pLogStore, SyncIndex index) {
   return pEntry;
 }
 
-// truncate log with index, entries after the given index (>=index) will be deleted
 int32_t logStoreTruncate(SSyncLogStore* pLogStore, SyncIndex fromIndex) {
   SSyncLogStoreData* pData = pLogStore->data;
   SWal*              pWal = pData->pWal;
   walRollback(pWal, fromIndex);
 }
 
-// return index of last entry
 SyncIndex logStoreLastIndex(SSyncLogStore* pLogStore) {
   SSyncLogStoreData* pData = pLogStore->data;
   SWal*              pWal = pData->pWal;
@@ -92,7 +88,6 @@ SyncIndex logStoreLastIndex(SSyncLogStore* pLogStore) {
   return lastIndex;
 }
 
-// return term of last entry
 SyncTerm logStoreLastTerm(SSyncLogStore* pLogStore) {
   SyncTerm        lastTerm = 0;
   SSyncRaftEntry* pLastEntry = logStoreGetLastEntry(pLogStore);
@@ -103,14 +98,12 @@ SyncTerm logStoreLastTerm(SSyncLogStore* pLogStore) {
   return lastTerm;
 }
 
-// update log store commit index with "index"
 int32_t logStoreUpdateCommitIndex(SSyncLogStore* pLogStore, SyncIndex index) {
   SSyncLogStoreData* pData = pLogStore->data;
   SWal*              pWal = pData->pWal;
   walCommit(pWal, index);
 }
 
-// return commit index of log
 SyncIndex logStoreGetCommitIndex(SSyncLogStore* pLogStore) {
   SSyncLogStoreData* pData = pLogStore->data;
   return pData->pSyncNode->commitIndex;
@@ -163,11 +156,29 @@ char* logStore2Str(SSyncLogStore* pLogStore) {
   return serialized;
 }
 
-// for debug
+// for debug -----------------
 void logStorePrint(SSyncLogStore* pLogStore) {
-  char* s = logStore2Str(pLogStore);
-  // sTrace("%s", s);
-  fprintf(stderr, "logStorePrint: [len:%lu]| %s \n", strlen(s), s);
+  char* serialized = logStore2Str(pLogStore);
+  printf("logStorePrint | len:%lu | %s \n", strlen(serialized), serialized);
+  fflush(NULL);
+  free(serialized);
+}
+
+void logStorePrint2(char* s, SSyncLogStore* pLogStore) {
+  char* serialized = logStore2Str(pLogStore);
+  printf("logStorePrint | len:%lu | %s | %s \n", strlen(serialized), s, serialized);
+  fflush(NULL);
+  free(serialized);
+}
 
-  free(s);
+void logStoreLog(SSyncLogStore* pLogStore) {
+  char* serialized = logStore2Str(pLogStore);
+  sTrace("logStorePrint | len:%lu | %s", strlen(serialized), serialized);
+  free(serialized);
+}
+
+void logStoreLog2(char* s, SSyncLogStore* pLogStore) {
+  char* serialized = logStore2Str(pLogStore);
+  sTrace("logStorePrint | len:%lu | %s | %s", strlen(serialized), s, serialized);
+  free(serialized);
 }
\ No newline at end of file