From 2aeda3a94171340ab5b8fc3ca0b58e6db59b0813 Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Mon, 9 Jan 2023 12:01:36 +0800
Subject: [PATCH] enh: refact raft store file

---
 source/libs/sync/inc/syncInt.h                |  17 +-
 source/libs/sync/inc/syncRaftStore.h          |  29 +-
 source/libs/sync/src/syncAppendEntries.c      |  12 +-
 source/libs/sync/src/syncAppendEntriesReply.c |  12 +-
 source/libs/sync/src/syncCommit.c             |   4 +-
 source/libs/sync/src/syncElection.c           |  10 +-
 source/libs/sync/src/syncMain.c               |  91 +++----
 source/libs/sync/src/syncMessage.c            |   2 +-
 source/libs/sync/src/syncPipeline.c           |  46 ++--
 source/libs/sync/src/syncRaftStore.c          | 247 +++++++++---------
 source/libs/sync/src/syncReplication.c        |   4 +-
 source/libs/sync/src/syncRequestVote.c        |  34 +--
 source/libs/sync/src/syncRequestVoteReply.c   |  10 +-
 source/libs/sync/src/syncRespMgr.c            |   2 +-
 source/libs/sync/src/syncSnapshot.c           |  40 +--
 source/libs/sync/src/syncUtil.c               |  12 +-
 .../test/sync_test_lib/src/syncMainDebug.c    |   4 +-
 .../sync_test_lib/src/syncSnapshotDebug.c     |   2 +-
 18 files changed, 281 insertions(+), 297 deletions(-)

diff --git a/source/libs/sync/inc/syncInt.h b/source/libs/sync/inc/syncInt.h
index 6793430923..7e08e195c1 100644
--- a/source/libs/sync/inc/syncInt.h
+++ b/source/libs/sync/inc/syncInt.h
@@ -32,11 +32,9 @@ typedef struct SyncRequestVoteReply   SyncRequestVoteReply;
 typedef struct SyncAppendEntries      SyncAppendEntries;
 typedef struct SyncAppendEntriesReply SyncAppendEntriesReply;
 typedef struct SSyncEnv               SSyncEnv;
-typedef struct SRaftStore             SRaftStore;
 typedef struct SVotesGranted          SVotesGranted;
 typedef struct SVotesRespond          SVotesRespond;
 typedef struct SSyncIndexMgr          SSyncIndexMgr;
-typedef struct SRaftCfg               SRaftCfg;
 typedef struct SSyncRespMgr           SSyncRespMgr;
 typedef struct SSyncSnapshotSender    SSyncSnapshotSender;
 typedef struct SSyncSnapshotReceiver  SSyncSnapshotReceiver;
@@ -70,6 +68,11 @@ typedef struct SRaftId {
   SyncGroupId vgId;
 } SRaftId;
 
+typedef struct SRaftStore {
+  SyncTerm currentTerm;
+  SRaftId  voteFor;
+} SRaftStore;
+
 typedef struct SSyncHbTimerData {
   int64_t     syncNodeRid;
   SSyncTimer* pTimer;
@@ -112,8 +115,8 @@ typedef struct SSyncNode {
 
   // sync io
   SSyncLogBuffer* pLogBuf;
-  SWal*         pWal;
-  const SMsgCb* msgcb;
+  SWal*           pWal;
+  const SMsgCb*   msgcb;
   int32_t (*syncSendMSg)(const SEpSet* pEpSet, SRpcMsg* pMsg);
   int32_t (*syncEqMsg)(const SMsgCb* msgcb, SRpcMsg* pMsg);
   int32_t (*syncEqCtrlMsg)(const SMsgCb* msgcb, SRpcMsg* pMsg);
@@ -139,8 +142,8 @@ typedef struct SSyncNode {
   int64_t rid;
 
   // tla+ server vars
-  ESyncState  state;
-  SRaftStore* pRaftStore;
+  ESyncState state;
+  SRaftStore raftStore;
 
   // tla+ candidate vars
   SVotesGranted* pVotesGranted;
@@ -229,7 +232,7 @@ int32_t    syncNodeStartStandBy(SSyncNode* pSyncNode);
 void       syncNodeClose(SSyncNode* pSyncNode);
 void       syncNodePreClose(SSyncNode* pSyncNode);
 void       syncNodePostClose(SSyncNode* pSyncNode);
-int32_t    syncNodePropose(SSyncNode* pSyncNode, SRpcMsg* pMsg, bool isWeak, int64_t *seq);
+int32_t    syncNodePropose(SSyncNode* pSyncNode, SRpcMsg* pMsg, bool isWeak, int64_t* seq);
 int32_t    syncNodeRestore(SSyncNode* pSyncNode);
 void       syncHbTimerDataFree(SSyncHbTimerData* pData);
 
diff --git a/source/libs/sync/inc/syncRaftStore.h b/source/libs/sync/inc/syncRaftStore.h
index bb6405f6b2..21a8fc64a8 100644
--- a/source/libs/sync/inc/syncRaftStore.h
+++ b/source/libs/sync/inc/syncRaftStore.h
@@ -24,27 +24,16 @@ extern "C" {
 
 #define RAFT_STORE_BLOCK_SIZE 512
 #define RAFT_STORE_PATH_LEN   (TSDB_FILENAME_LEN * 2)
+#define EMPTY_RAFT_ID         ((SRaftId){.addr = 0, .vgId = 0})
 
-#define EMPTY_RAFT_ID ((SRaftId){.addr = 0, .vgId = 0})
-
-typedef struct SRaftStore {
-  SyncTerm  currentTerm;
-  SRaftId   voteFor;
-  TdFilePtr pFile;
-  char      path[RAFT_STORE_PATH_LEN];
-} SRaftStore;
-
-SRaftStore *raftStoreOpen(const char *path);
-int32_t     raftStoreClose(SRaftStore *pRaftStore);
-int32_t     raftStorePersist(SRaftStore *pRaftStore);
-int32_t     raftStoreSerialize(SRaftStore *pRaftStore, char *buf, size_t len);
-int32_t     raftStoreDeserialize(SRaftStore *pRaftStore, char *buf, size_t len);
-
-bool raftStoreHasVoted(SRaftStore *pRaftStore);
-void raftStoreVote(SRaftStore *pRaftStore, SRaftId *pRaftId);
-void raftStoreClearVote(SRaftStore *pRaftStore);
-void raftStoreNextTerm(SRaftStore *pRaftStore);
-void raftStoreSetTerm(SRaftStore *pRaftStore, SyncTerm term);
+int32_t raftStoreReadFile(SSyncNode *pNode);
+int32_t raftStoreWriteFile(SSyncNode *pNode);
+
+bool raftStoreHasVoted(SSyncNode *pNode);
+void raftStoreVote(SSyncNode *pNode, SRaftId *pRaftId);
+void raftStoreClearVote(SSyncNode *pNode);
+void raftStoreNextTerm(SSyncNode *pNode);
+void raftStoreSetTerm(SSyncNode *pNode, SyncTerm term);
 
 #ifdef __cplusplus
 }
diff --git a/source/libs/sync/src/syncAppendEntries.c b/source/libs/sync/src/syncAppendEntries.c
index 026ebdb37c..83d1777f44 100644
--- a/source/libs/sync/src/syncAppendEntries.c
+++ b/source/libs/sync/src/syncAppendEntries.c
@@ -159,17 +159,17 @@ int32_t syncNodeOnAppendEntries(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
   // prepare response msg
   pReply->srcId = ths->myRaftId;
   pReply->destId = pMsg->srcId;
-  pReply->term = ths->pRaftStore->currentTerm;
+  pReply->term = ths->raftStore.currentTerm;
   pReply->success = false;
   pReply->matchIndex = SYNC_INDEX_INVALID;
   pReply->lastSendIndex = pMsg->prevLogIndex + 1;
   pReply->startTime = ths->startTime;
 
-  if (pMsg->term < ths->pRaftStore->currentTerm) {
+  if (pMsg->term < ths->raftStore.currentTerm) {
     goto _SEND_RESPONSE;
   }
 
-  if (pMsg->term > ths->pRaftStore->currentTerm) {
+  if (pMsg->term > ths->raftStore.currentTerm) {
     pReply->term = pMsg->term;
   }
 
@@ -253,19 +253,19 @@ int32_t syncNodeOnAppendEntriesOld(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
   SyncAppendEntriesReply* pReply = rpcRsp.pCont;
   pReply->srcId = ths->myRaftId;
   pReply->destId = pMsg->srcId;
-  pReply->term = ths->pRaftStore->currentTerm;
+  pReply->term = ths->raftStore.currentTerm;
   pReply->success = false;
   // pReply->matchIndex = ths->pLogStore->syncLogLastIndex(ths->pLogStore);
   pReply->matchIndex = SYNC_INDEX_INVALID;
   pReply->lastSendIndex = pMsg->prevLogIndex + 1;
   pReply->startTime = ths->startTime;
 
-  if (pMsg->term < ths->pRaftStore->currentTerm) {
+  if (pMsg->term < ths->raftStore.currentTerm) {
     syncLogRecvAppendEntries(ths, pMsg, "reject, small term");
     goto _SEND_RESPONSE;
   }
 
-  if (pMsg->term > ths->pRaftStore->currentTerm) {
+  if (pMsg->term > ths->raftStore.currentTerm) {
     pReply->term = pMsg->term;
   }
 
diff --git a/source/libs/sync/src/syncAppendEntriesReply.c b/source/libs/sync/src/syncAppendEntriesReply.c
index b83be2bebb..8157a5a14f 100644
--- a/source/libs/sync/src/syncAppendEntriesReply.c
+++ b/source/libs/sync/src/syncAppendEntriesReply.c
@@ -50,19 +50,19 @@ int32_t syncNodeOnAppendEntriesReply(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
   }
 
   // drop stale response
-  if (pMsg->term < ths->pRaftStore->currentTerm) {
+  if (pMsg->term < ths->raftStore.currentTerm) {
     syncLogRecvAppendEntriesReply(ths, pMsg, "drop stale response");
     return 0;
   }
 
   if (ths->state == TAOS_SYNC_STATE_LEADER) {
-    if (pMsg->term > ths->pRaftStore->currentTerm) {
+    if (pMsg->term > ths->raftStore.currentTerm) {
       syncLogRecvAppendEntriesReply(ths, pMsg, "error term");
       syncNodeStepDown(ths, pMsg->term);
       return -1;
     }
 
-    ASSERT(pMsg->term == ths->pRaftStore->currentTerm);
+    ASSERT(pMsg->term == ths->raftStore.currentTerm);
 
     sTrace("vgId:%d, received append entries reply. srcId:0x%016" PRIx64 ",  term:%" PRId64 ", matchIndex:%" PRId64 "",
            pMsg->vgId, pMsg->srcId.addr, pMsg->term, pMsg->matchIndex);
@@ -100,19 +100,19 @@ int32_t syncNodeOnAppendEntriesReplyOld(SSyncNode* ths, SyncAppendEntriesReply*
   }
 
   // drop stale response
-  if (pMsg->term < ths->pRaftStore->currentTerm) {
+  if (pMsg->term < ths->raftStore.currentTerm) {
     syncLogRecvAppendEntriesReply(ths, pMsg, "drop stale response");
     return 0;
   }
 
   if (ths->state == TAOS_SYNC_STATE_LEADER) {
-    if (pMsg->term > ths->pRaftStore->currentTerm) {
+    if (pMsg->term > ths->raftStore.currentTerm) {
       syncLogRecvAppendEntriesReply(ths, pMsg, "error term");
       syncNodeStepDown(ths, pMsg->term);
       return -1;
     }
 
-    ASSERT(pMsg->term == ths->pRaftStore->currentTerm);
+    ASSERT(pMsg->term == ths->raftStore.currentTerm);
 
     if (pMsg->success) {
       SyncIndex oldMatchIndex = syncIndexMgrGetIndex(ths->pMatchIndex, &(pMsg->srcId));
diff --git a/source/libs/sync/src/syncCommit.c b/source/libs/sync/src/syncCommit.c
index 152fddb7e6..286cf4daf5 100644
--- a/source/libs/sync/src/syncCommit.c
+++ b/source/libs/sync/src/syncCommit.c
@@ -133,7 +133,7 @@ void syncMaybeAdvanceCommitIndex(SSyncNode* pSyncNode) {
         }
       }
       // cannot commit, even if quorum agree. need check term!
-      if (pEntry->term <= pSyncNode->pRaftStore->currentTerm) {
+      if (pEntry->term <= pSyncNode->raftStore.currentTerm) {
         // update commit index
         newCommitIndex = index;
 
@@ -329,7 +329,7 @@ int64_t syncNodeCheckCommitIndex(SSyncNode* ths, SyncIndex indexLikely) {
     SyncIndex commitIndex = indexLikely;
     syncNodeUpdateCommitIndex(ths, commitIndex);
     sTrace("vgId:%d, agreed upon. role:%d, term:%" PRId64 ", index: %" PRId64 "", ths->vgId, ths->state,
-           ths->pRaftStore->currentTerm, commitIndex);
+           ths->raftStore.currentTerm, commitIndex);
   }
   return ths->commitIndex;
 }
diff --git a/source/libs/sync/src/syncElection.c b/source/libs/sync/src/syncElection.c
index bcc95c5f10..cd3ffc33e3 100644
--- a/source/libs/sync/src/syncElection.c
+++ b/source/libs/sync/src/syncElection.c
@@ -48,7 +48,7 @@ static int32_t syncNodeRequestVotePeers(SSyncNode* pNode) {
     SyncRequestVote* pMsg = rpcMsg.pCont;
     pMsg->srcId = pNode->myRaftId;
     pMsg->destId = pNode->peersId[i];
-    pMsg->term = pNode->pRaftStore->currentTerm;
+    pMsg->term = pNode->raftStore.currentTerm;
 
     ret = syncNodeGetLastIndexTerm(pNode, &pMsg->lastLogIndex, &pMsg->lastLogTerm);
     ASSERT(ret == 0);
@@ -75,10 +75,10 @@ int32_t syncNodeElect(SSyncNode* pSyncNode) {
   }
 
   // start election
-  raftStoreNextTerm(pSyncNode->pRaftStore);
-  raftStoreClearVote(pSyncNode->pRaftStore);
-  voteGrantedReset(pSyncNode->pVotesGranted, pSyncNode->pRaftStore->currentTerm);
-  votesRespondReset(pSyncNode->pVotesRespond, pSyncNode->pRaftStore->currentTerm);
+  raftStoreNextTerm(pSyncNode);
+  raftStoreClearVote(pSyncNode);
+  voteGrantedReset(pSyncNode->pVotesGranted, pSyncNode->raftStore.currentTerm);
+  votesRespondReset(pSyncNode->pVotesRespond, pSyncNode->raftStore.currentTerm);
 
   syncNodeVoteForSelf(pSyncNode);
   if (voteGrantedMajority(pSyncNode->pVotesGranted)) {
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index c2bf6dc837..a339cb9857 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -468,7 +468,7 @@ bool syncNodeIsReadyForRead(SSyncNode* pSyncNode) {
       }
 
       if (code == 0 && pEntry != NULL) {
-        if (pEntry->originalRpcType == TDMT_SYNC_NOOP && pEntry->term == pSyncNode->pRaftStore->currentTerm) {
+        if (pEntry->originalRpcType == TDMT_SYNC_NOOP && pEntry->term == pSyncNode->raftStore.currentTerm) {
           ready = true;
         }
 
@@ -736,7 +736,7 @@ int32_t syncNodePropose(SSyncNode* pSyncNode, SRpcMsg* pMsg, bool isWeak, int64_
     int32_t   code = syncNodeOnClientRequest(pSyncNode, pMsg, &retIndex);
     if (code == 0) {
       pMsg->info.conn.applyIndex = retIndex;
-      pMsg->info.conn.applyTerm = pSyncNode->pRaftStore->currentTerm;
+      pMsg->info.conn.applyTerm = pSyncNode->raftStore.currentTerm;
       sTrace("vgId:%d, propose optimized msg, index:%" PRId64 " type:%s", pSyncNode->vgId, retIndex,
              TMSG_INFO(pMsg->msgType));
       return 1;
@@ -983,8 +983,7 @@ SSyncNode* syncNodeOpen(SSyncInfo* pSyncInfo) {
 
   // init TLA+ server vars
   pSyncNode->state = TAOS_SYNC_STATE_FOLLOWER;
-  pSyncNode->pRaftStore = raftStoreOpen(pSyncNode->raftStorePath);
-  if (pSyncNode->pRaftStore == NULL) {
+  if (raftStoreReadFile(pSyncNode) != 0) {
     sError("vgId:%d, failed to open raft store at path %s", pSyncNode->vgId, pSyncNode->raftStorePath);
     goto _error;
   }
@@ -1184,7 +1183,7 @@ int32_t syncNodeRestore(SSyncNode* pSyncNode) {
 int32_t syncNodeStart(SSyncNode* pSyncNode) {
   // start raft
   if (pSyncNode->replicaNum == 1) {
-    raftStoreNextTerm(pSyncNode->pRaftStore);
+    raftStoreNextTerm(pSyncNode);
     syncNodeBecomeLeader(pSyncNode, "one replica start");
 
     // Raft 3.6.2 Committing entries from previous terms
@@ -1202,7 +1201,7 @@ int32_t syncNodeStart(SSyncNode* pSyncNode) {
 void syncNodeStartOld(SSyncNode* pSyncNode) {
   // start raft
   if (pSyncNode->replicaNum == 1) {
-    raftStoreNextTerm(pSyncNode->pRaftStore);
+    raftStoreNextTerm(pSyncNode);
     syncNodeBecomeLeader(pSyncNode, "one replica start");
 
     // Raft 3.6.2 Committing entries from previous terms
@@ -1288,10 +1287,6 @@ void syncNodeClose(SSyncNode* pSyncNode) {
   if (pSyncNode == NULL) return;
   sNInfo(pSyncNode, "sync close, node:%p", pSyncNode);
 
-  int32_t ret = raftStoreClose(pSyncNode->pRaftStore);
-  ASSERT(ret == 0);
-  pSyncNode->pRaftStore = NULL;
-
   syncNodeLogReplMgrDestroy(pSyncNode);
   syncRespMgrDestroy(pSyncNode->pSyncRespMgr);
   pSyncNode->pSyncRespMgr = NULL;
@@ -1714,39 +1709,39 @@ _END:
 
 // raft state change --------------
 void syncNodeUpdateTerm(SSyncNode* pSyncNode, SyncTerm term) {
-  if (term > pSyncNode->pRaftStore->currentTerm) {
-    raftStoreSetTerm(pSyncNode->pRaftStore, term);
+  if (term > pSyncNode->raftStore.currentTerm) {
+    raftStoreSetTerm(pSyncNode, term);
     char tmpBuf[64];
     snprintf(tmpBuf, sizeof(tmpBuf), "update term to %" PRId64, term);
     syncNodeBecomeFollower(pSyncNode, tmpBuf);
-    raftStoreClearVote(pSyncNode->pRaftStore);
+    raftStoreClearVote(pSyncNode);
   }
 }
 
 void syncNodeUpdateTermWithoutStepDown(SSyncNode* pSyncNode, SyncTerm term) {
-  if (term > pSyncNode->pRaftStore->currentTerm) {
-    raftStoreSetTerm(pSyncNode->pRaftStore, term);
+  if (term > pSyncNode->raftStore.currentTerm) {
+    raftStoreSetTerm(pSyncNode, term);
   }
 }
 
 void syncNodeStepDown(SSyncNode* pSyncNode, SyncTerm newTerm) {
-  if (pSyncNode->pRaftStore->currentTerm > newTerm) {
+  if (pSyncNode->raftStore.currentTerm > newTerm) {
     sNTrace(pSyncNode, "step down, ignore, new-term:%" PRId64 ", current-term:%" PRId64, newTerm,
-            pSyncNode->pRaftStore->currentTerm);
+            pSyncNode->raftStore.currentTerm);
     return;
   }
 
   do {
     sNTrace(pSyncNode, "step down, new-term:%" PRId64 ", current-term:%" PRId64, newTerm,
-            pSyncNode->pRaftStore->currentTerm);
+            pSyncNode->raftStore.currentTerm);
   } while (0);
 
-  if (pSyncNode->pRaftStore->currentTerm < newTerm) {
-    raftStoreSetTerm(pSyncNode->pRaftStore, newTerm);
+  if (pSyncNode->raftStore.currentTerm < newTerm) {
+    raftStoreSetTerm(pSyncNode, newTerm);
     char tmpBuf[64];
     snprintf(tmpBuf, sizeof(tmpBuf), "step down, update term to %" PRId64, newTerm);
     syncNodeBecomeFollower(pSyncNode, tmpBuf);
-    raftStoreClearVote(pSyncNode->pRaftStore);
+    raftStoreClearVote(pSyncNode);
 
   } else {
     if (pSyncNode->state != TAOS_SYNC_STATE_FOLLOWER) {
@@ -1904,7 +1899,7 @@ void syncNodeCandidate2Leader(SSyncNode* pSyncNode) {
   SyncIndex lastIndex = pSyncNode->pLogStore->syncLogLastIndex(pSyncNode->pLogStore);
   ASSERT(lastIndex >= 0);
   sInfo("vgId:%d, become leader. term: %" PRId64 ", commit index: %" PRId64 ", last index: %" PRId64 "",
-        pSyncNode->vgId, pSyncNode->pRaftStore->currentTerm, pSyncNode->commitIndex, lastIndex);
+        pSyncNode->vgId, pSyncNode->raftStore.currentTerm, pSyncNode->commitIndex, lastIndex);
 }
 
 void syncNodeCandidate2LeaderOld(SSyncNode* pSyncNode) {
@@ -1937,7 +1932,7 @@ void syncNodeFollower2Candidate(SSyncNode* pSyncNode) {
   pSyncNode->state = TAOS_SYNC_STATE_CANDIDATE;
   SyncIndex lastIndex = pSyncNode->pLogStore->syncLogLastIndex(pSyncNode->pLogStore);
   sInfo("vgId:%d, become candidate from follower. term: %" PRId64 ", commit index: %" PRId64 ", last index: %" PRId64,
-        pSyncNode->vgId, pSyncNode->pRaftStore->currentTerm, pSyncNode->commitIndex, lastIndex);
+        pSyncNode->vgId, pSyncNode->raftStore.currentTerm, pSyncNode->commitIndex, lastIndex);
 
   sNTrace(pSyncNode, "follower to candidate");
 }
@@ -1947,7 +1942,7 @@ void syncNodeLeader2Follower(SSyncNode* pSyncNode) {
   syncNodeBecomeFollower(pSyncNode, "leader to follower");
   SyncIndex lastIndex = pSyncNode->pLogStore->syncLogLastIndex(pSyncNode->pLogStore);
   sInfo("vgId:%d, become follower from leader. term: %" PRId64 ", commit index: %" PRId64 ", last index: %" PRId64,
-        pSyncNode->vgId, pSyncNode->pRaftStore->currentTerm, pSyncNode->commitIndex, lastIndex);
+        pSyncNode->vgId, pSyncNode->raftStore.currentTerm, pSyncNode->commitIndex, lastIndex);
 
   sNTrace(pSyncNode, "leader to follower");
 }
@@ -1957,7 +1952,7 @@ void syncNodeCandidate2Follower(SSyncNode* pSyncNode) {
   syncNodeBecomeFollower(pSyncNode, "candidate to follower");
   SyncIndex lastIndex = pSyncNode->pLogStore->syncLogLastIndex(pSyncNode->pLogStore);
   sInfo("vgId:%d, become follower from candidate. term: %" PRId64 ", commit index: %" PRId64 ", last index: %" PRId64,
-        pSyncNode->vgId, pSyncNode->pRaftStore->currentTerm, pSyncNode->commitIndex, lastIndex);
+        pSyncNode->vgId, pSyncNode->raftStore.currentTerm, pSyncNode->commitIndex, lastIndex);
 
   sNTrace(pSyncNode, "candidate to follower");
 }
@@ -1965,15 +1960,15 @@ void syncNodeCandidate2Follower(SSyncNode* pSyncNode) {
 // just called by syncNodeVoteForSelf
 // need assert
 void syncNodeVoteForTerm(SSyncNode* pSyncNode, SyncTerm term, SRaftId* pRaftId) {
-  ASSERT(term == pSyncNode->pRaftStore->currentTerm);
-  ASSERT(!raftStoreHasVoted(pSyncNode->pRaftStore));
+  ASSERT(term == pSyncNode->raftStore.currentTerm);
+  ASSERT(!raftStoreHasVoted(pSyncNode));
 
-  raftStoreVote(pSyncNode->pRaftStore, pRaftId);
+  raftStoreVote(pSyncNode, pRaftId);
 }
 
 // simulate get vote from outside
 void syncNodeVoteForSelf(SSyncNode* pSyncNode) {
-  syncNodeVoteForTerm(pSyncNode, pSyncNode->pRaftStore->currentTerm, &pSyncNode->myRaftId);
+  syncNodeVoteForTerm(pSyncNode, pSyncNode->raftStore.currentTerm, &pSyncNode->myRaftId);
 
   SRpcMsg rpcMsg = {0};
   int32_t ret = syncBuildRequestVoteReply(&rpcMsg, pSyncNode->vgId);
@@ -1982,7 +1977,7 @@ void syncNodeVoteForSelf(SSyncNode* pSyncNode) {
   SyncRequestVoteReply* pMsg = rpcMsg.pCont;
   pMsg->srcId = pSyncNode->myRaftId;
   pMsg->destId = pSyncNode->myRaftId;
-  pMsg->term = pSyncNode->pRaftStore->currentTerm;
+  pMsg->term = pSyncNode->raftStore.currentTerm;
   pMsg->voteGranted = true;
 
   voteGrantedVote(pSyncNode->pVotesGranted, pMsg);
@@ -2272,13 +2267,6 @@ static void syncNodeEqPeerHeartbeatTimer(void* param, void* tmrId) {
     return;
   }
 
-  if (pSyncNode->pRaftStore == NULL) {
-    syncNodeRelease(pSyncNode);
-    syncHbTimerDataRelease(pData);
-    sError("vgId:%d, hb timer raft store already stop", pSyncNode->vgId);
-    return;
-  }
-
   // sTrace("vgId:%d, eq peer hb timer", pSyncNode->vgId);
 
   if (pSyncNode->replicaNum > 1) {
@@ -2302,7 +2290,7 @@ static void syncNodeEqPeerHeartbeatTimer(void* param, void* tmrId) {
         SyncHeartbeat* pSyncMsg = rpcMsg.pCont;
         pSyncMsg->srcId = pSyncNode->myRaftId;
         pSyncMsg->destId = pData->destId;
-        pSyncMsg->term = pSyncNode->pRaftStore->currentTerm;
+        pSyncMsg->term = pSyncNode->raftStore.currentTerm;
         pSyncMsg->commitIndex = pSyncNode->commitIndex;
         pSyncMsg->minMatchIndex = syncMinMatchIndex(pSyncNode);
         pSyncMsg->privateTerm = 0;
@@ -2348,7 +2336,7 @@ static int32_t syncNodeEqNoop(SSyncNode* pNode) {
   }
 
   SyncIndex       index = pNode->pLogStore->syncLogWriteIndex(pNode->pLogStore);
-  SyncTerm        term = pNode->pRaftStore->currentTerm;
+  SyncTerm        term = pNode->raftStore.currentTerm;
   SSyncRaftEntry* pEntry = syncEntryBuildNoop(term, index, pNode->vgId);
   if (pEntry == NULL) return -1;
 
@@ -2394,8 +2382,7 @@ int32_t syncNodeAppend(SSyncNode* ths, SSyncRaftEntry* pEntry) {
   if (syncLogBufferAppend(ths->pLogBuf, ths, pEntry) < 0) {
     sError("vgId:%d, failed to enqueue sync log buffer, index:%" PRId64, ths->vgId, pEntry->index);
     terrno = TSDB_CODE_SYN_BUFFER_FULL;
-    (void)syncLogFsmExecute(ths, ths->pFsm, ths->state, ths->pRaftStore->currentTerm, pEntry,
-                            TSDB_CODE_SYN_BUFFER_FULL);
+    (void)syncLogFsmExecute(ths, ths->pFsm, ths->state, ths->raftStore.currentTerm, pEntry, TSDB_CODE_SYN_BUFFER_FULL);
     syncEntryDestroy(pEntry);
     return -1;
   }
@@ -2468,7 +2455,7 @@ bool syncNodeSnapshotRecving(SSyncNode* pSyncNode) {
 
 static int32_t syncNodeAppendNoop(SSyncNode* ths) {
   SyncIndex index = syncLogBufferGetEndIndex(ths->pLogBuf);
-  SyncTerm  term = ths->pRaftStore->currentTerm;
+  SyncTerm  term = ths->raftStore.currentTerm;
 
   SSyncRaftEntry* pEntry = syncEntryBuildNoop(term, index, ths->vgId);
   if (pEntry == NULL) {
@@ -2484,7 +2471,7 @@ static int32_t syncNodeAppendNoopOld(SSyncNode* ths) {
   int32_t ret = 0;
 
   SyncIndex       index = ths->pLogStore->syncLogWriteIndex(ths->pLogStore);
-  SyncTerm        term = ths->pRaftStore->currentTerm;
+  SyncTerm        term = ths->raftStore.currentTerm;
   SSyncRaftEntry* pEntry = syncEntryBuildNoop(term, index, ths->vgId);
   ASSERT(pEntry != NULL);
 
@@ -2526,12 +2513,12 @@ int32_t syncNodeOnHeartbeat(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
   SyncHeartbeatReply* pMsgReply = rpcMsg.pCont;
   pMsgReply->destId = pMsg->srcId;
   pMsgReply->srcId = ths->myRaftId;
-  pMsgReply->term = ths->pRaftStore->currentTerm;
+  pMsgReply->term = ths->raftStore.currentTerm;
   pMsgReply->privateTerm = 8864;  // magic number
   pMsgReply->startTime = ths->startTime;
   pMsgReply->timeStamp = tsMs;
 
-  if (pMsg->term == ths->pRaftStore->currentTerm && ths->state != TAOS_SYNC_STATE_LEADER) {
+  if (pMsg->term == ths->raftStore.currentTerm && ths->state != TAOS_SYNC_STATE_LEADER) {
     syncIndexMgrSetRecvTime(ths->pNextIndex, &(pMsg->srcId), tsMs);
 
     syncNodeResetElectTimer(ths);
@@ -2560,7 +2547,7 @@ int32_t syncNodeOnHeartbeat(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
     }
   }
 
-  if (pMsg->term >= ths->pRaftStore->currentTerm && ths->state != TAOS_SYNC_STATE_FOLLOWER) {
+  if (pMsg->term >= ths->raftStore.currentTerm && ths->state != TAOS_SYNC_STATE_FOLLOWER) {
     // syncNodeStepDown(ths, pMsg->term);
     SRpcMsg rpcMsgLocalCmd = {0};
     (void)syncBuildLocalCmd(&rpcMsgLocalCmd, ths->vgId);
@@ -2687,7 +2674,7 @@ int32_t syncNodeOnClientRequest(SSyncNode* ths, SRpcMsg* pMsg, SyncIndex* pRetIn
   int32_t code = 0;
 
   SyncIndex       index = syncLogBufferGetEndIndex(ths->pLogBuf);
-  SyncTerm        term = ths->pRaftStore->currentTerm;
+  SyncTerm        term = ths->raftStore.currentTerm;
   SSyncRaftEntry* pEntry = NULL;
   if (pMsg->msgType == TDMT_SYNC_CLIENT_REQUEST) {
     pEntry = syncEntryBuildFromClientRequest(pMsg->pCont, term, index);
@@ -2721,7 +2708,7 @@ int32_t syncNodeOnClientRequestOld(SSyncNode* ths, SRpcMsg* pMsg, SyncIndex* pRe
   int32_t code = 0;
 
   SyncIndex       index = ths->pLogStore->syncLogWriteIndex(ths->pLogStore);
-  SyncTerm        term = ths->pRaftStore->currentTerm;
+  SyncTerm        term = ths->raftStore.currentTerm;
   SSyncRaftEntry* pEntry;
 
   if (pMsg->msgType == TDMT_SYNC_CLIENT_REQUEST) {
@@ -2755,7 +2742,7 @@ int32_t syncNodeOnClientRequestOld(SSyncNode* ths, SRpcMsg* pMsg, SyncIndex* pRe
             .state = ths->state,
             .seqNum = pEntry->seqNum,
             .term = pEntry->term,
-            .currentTerm = ths->pRaftStore->currentTerm,
+            .currentTerm = ths->raftStore.currentTerm,
             .flag = 0,
         };
         ths->pFsm->FpCommitCb(ths->pFsm, pMsg, &cbMeta);
@@ -2833,7 +2820,7 @@ int32_t syncDoLeaderTransfer(SSyncNode* ths, SRpcMsg* pRpcMsg, SSyncRaftEntry* p
     return 0;
   }
 
-  if (pEntry->term < ths->pRaftStore->currentTerm) {
+  if (pEntry->term < ths->raftStore.currentTerm) {
     sNTrace(ths, "little term:%" PRId64 ", can not do leader transfer", pEntry->term);
     return 0;
   }
@@ -2871,7 +2858,7 @@ int32_t syncDoLeaderTransfer(SSyncNode* ths, SRpcMsg* pRpcMsg, SSyncRaftEntry* p
   if (ths->pFsm->FpLeaderTransferCb != NULL) {
     SFsmCbMeta cbMeta = {
         .code = 0,
-        .currentTerm = ths->pRaftStore->currentTerm,
+        .currentTerm = ths->raftStore.currentTerm,
         .flag = 0,
         .index = pEntry->index,
         .lastConfigIndex = syncNodeGetSnapshotConfigIndex(ths, pEntry->index),
@@ -2987,7 +2974,7 @@ int32_t syncNodeDoCommit(SSyncNode* ths, SyncIndex beginIndex, SyncIndex endInde
                 .state = ths->state,
                 .seqNum = pEntry->seqNum,
                 .term = pEntry->term,
-                .currentTerm = ths->pRaftStore->currentTerm,
+                .currentTerm = ths->raftStore.currentTerm,
                 .flag = flag,
             };
 
diff --git a/source/libs/sync/src/syncMessage.c b/source/libs/sync/src/syncMessage.c
index 467b4e2219..29f327c35c 100644
--- a/source/libs/sync/src/syncMessage.c
+++ b/source/libs/sync/src/syncMessage.c
@@ -176,7 +176,7 @@ int32_t syncBuildAppendEntriesFromRaftLog(SSyncNode* pNode, SSyncRaftEntry* pEnt
   pMsg->prevLogTerm = prevLogTerm;
   pMsg->vgId = pNode->vgId;
   pMsg->srcId = pNode->myRaftId;
-  pMsg->term = pNode->pRaftStore->currentTerm;
+  pMsg->term = pNode->raftStore.currentTerm;
   pMsg->commitIndex = pNode->commitIndex;
   pMsg->privateTerm = 0;
   return 0;
diff --git a/source/libs/sync/src/syncPipeline.c b/source/libs/sync/src/syncPipeline.c
index f878044bca..b1f955b8df 100644
--- a/source/libs/sync/src/syncPipeline.c
+++ b/source/libs/sync/src/syncPipeline.c
@@ -285,9 +285,9 @@ SyncTerm syncLogBufferGetLastMatchTerm(SSyncLogBuffer* pBuf) {
 int32_t syncLogBufferAccept(SSyncLogBuffer* pBuf, SSyncNode* pNode, SSyncRaftEntry* pEntry, SyncTerm prevTerm) {
   taosThreadMutexLock(&pBuf->mutex);
   syncLogBufferValidate(pBuf);
-  int32_t   ret = -1;
-  SyncIndex index = pEntry->index;
-  SyncIndex prevIndex = pEntry->index - 1;
+  int32_t         ret = -1;
+  SyncIndex       index = pEntry->index;
+  SyncIndex       prevIndex = pEntry->index - 1;
   SyncTerm        lastMatchTerm = syncLogBufferGetLastMatchTermWithoutLock(pBuf);
   SSyncRaftEntry* pExist = NULL;
   bool            inBuf = true;
@@ -509,7 +509,7 @@ int32_t syncLogBufferCommit(SSyncLogBuffer* pBuf, SSyncNode* pNode, int64_t comm
   SSyncLogStore*  pLogStore = pNode->pLogStore;
   SSyncFSM*       pFsm = pNode->pFsm;
   ESyncState      role = pNode->state;
-  SyncTerm        term = pNode->pRaftStore->currentTerm;
+  SyncTerm        term = pNode->raftStore.currentTerm;
   SyncGroupId     vgId = pNode->vgId;
   int32_t         ret = -1;
   int64_t         upperIndex = TMIN(commitIndex, pBuf->matchIndex);
@@ -571,7 +571,7 @@ int32_t syncLogBufferCommit(SSyncLogBuffer* pBuf, SSyncNode* pNode, int64_t comm
 _out:
   // mark as restored if needed
   if (!pNode->restoreFinish && pBuf->commitIndex >= pNode->commitIndex && pEntry != NULL &&
-      pNode->pRaftStore->currentTerm <= pEntry->term) {
+      pNode->raftStore.currentTerm <= pEntry->term) {
     pNode->pFsm->FpRestoreFinishCb(pNode->pFsm);
     pNode->restoreFinish = true;
     sInfo("vgId:%d, restore finished. log buffer: [%" PRId64 " %" PRId64 " %" PRId64 ", %" PRId64 ")", pNode->vgId,
@@ -614,9 +614,9 @@ int32_t syncLogReplMgrRetryOnNeed(SSyncLogReplMgr* pMgr, SSyncNode* pNode) {
     return -1;
   }
 
-  int32_t ret = -1;
-  bool    retried = false;
-  int64_t retryWaitMs = syncLogGetRetryBackoffTimeMs(pMgr);
+  int32_t  ret = -1;
+  bool     retried = false;
+  int64_t  retryWaitMs = syncLogGetRetryBackoffTimeMs(pMgr);
   int64_t  nowMs = taosGetMonoTimestampMs();
   int      count = 0;
   int64_t  firstIndex = -1;
@@ -807,9 +807,9 @@ int32_t syncLogReplMgrReplicateProbeOnce(SSyncLogReplMgr* pMgr, SSyncNode* pNode
   }
   (void)syncLogReplMgrReset(pMgr);
 
-  SRaftId*  pDestId = &pNode->replicasId[pMgr->peerId];
-  bool      barrier = false;
-  SyncTerm  term = -1;
+  SRaftId* pDestId = &pNode->replicasId[pMgr->peerId];
+  bool     barrier = false;
+  SyncTerm term = -1;
   if (syncLogBufferReplicateOneTo(pMgr, pNode, index, &term, pDestId, &barrier) < 0) {
     sError("vgId:%d, failed to replicate log entry since %s. index: %" PRId64 ", dest: 0x%016" PRIx64 "", pNode->vgId,
            terrstr(), index, pDestId->addr);
@@ -836,11 +836,11 @@ int32_t syncLogReplMgrReplicateProbeOnce(SSyncLogReplMgr* pMgr, SSyncNode* pNode
 int32_t syncLogReplMgrReplicateAttemptedOnce(SSyncLogReplMgr* pMgr, SSyncNode* pNode) {
   ASSERT(pMgr->restored);
 
-  SRaftId* pDestId = &pNode->replicasId[pMgr->peerId];
-  int32_t  batchSize = TMAX(1, pMgr->size >> (4 + pMgr->retryBackoff));
-  int32_t  count = 0;
-  int64_t  nowMs = taosGetMonoTimestampMs();
-  int64_t  limit = pMgr->size >> 1;
+  SRaftId*  pDestId = &pNode->replicasId[pMgr->peerId];
+  int32_t   batchSize = TMAX(1, pMgr->size >> (4 + pMgr->retryBackoff));
+  int32_t   count = 0;
+  int64_t   nowMs = taosGetMonoTimestampMs();
+  int64_t   limit = pMgr->size >> 1;
   SyncTerm  term = -1;
   SyncIndex firstIndex = -1;
 
@@ -891,13 +891,13 @@ int32_t syncLogReplMgrReplicateAttemptedOnce(SSyncLogReplMgr* pMgr, SSyncNode* p
 int32_t syncLogReplMgrProcessReplyInNormalMode(SSyncLogReplMgr* pMgr, SSyncNode* pNode, SyncAppendEntriesReply* pMsg) {
   ASSERT(pMgr->restored == true);
   if (pMgr->startIndex <= pMsg->lastSendIndex && pMsg->lastSendIndex < pMgr->endIndex) {
-     if (pMgr->startIndex < pMgr->matchIndex && pMgr->retryBackoff > 0) {
-        int64_t firstSentMs = pMgr->states[pMgr->startIndex % pMgr->size].timeMs;
-        int64_t lastSentMs = pMgr->states[(pMgr->endIndex - 1) % pMgr->size].timeMs;
-        int64_t timeDiffMs = lastSentMs - firstSentMs;
-        if (timeDiffMs > 0 && timeDiffMs < (SYNC_LOG_REPL_RETRY_WAIT_MS << (pMgr->retryBackoff - 1))) {
-            pMgr->retryBackoff -= 1;
-        }
+    if (pMgr->startIndex < pMgr->matchIndex && pMgr->retryBackoff > 0) {
+      int64_t firstSentMs = pMgr->states[pMgr->startIndex % pMgr->size].timeMs;
+      int64_t lastSentMs = pMgr->states[(pMgr->endIndex - 1) % pMgr->size].timeMs;
+      int64_t timeDiffMs = lastSentMs - firstSentMs;
+      if (timeDiffMs > 0 && timeDiffMs < (SYNC_LOG_REPL_RETRY_WAIT_MS << (pMgr->retryBackoff - 1))) {
+        pMgr->retryBackoff -= 1;
+      }
     }
     pMgr->states[pMsg->lastSendIndex % pMgr->size].acked = true;
     pMgr->matchIndex = TMAX(pMgr->matchIndex, pMsg->matchIndex);
diff --git a/source/libs/sync/src/syncRaftStore.c b/source/libs/sync/src/syncRaftStore.c
index b19cda2a44..197d1463fd 100644
--- a/source/libs/sync/src/syncRaftStore.c
+++ b/source/libs/sync/src/syncRaftStore.c
@@ -16,156 +16,161 @@
 #define _DEFAULT_SOURCE
 #include "syncRaftStore.h"
 #include "syncUtil.h"
+#include "tjson.h"
 
-// private function
-static int32_t raftStoreInit(SRaftStore *pRaftStore);
-static bool    raftStoreFileExist(char *path);
+static int32_t raftStoreDecode(const SJson *pJson, SRaftStore *pStore) {
+  int32_t code = 0;
 
-// public function
-SRaftStore *raftStoreOpen(const char *path) {
-  int32_t ret;
+  tjsonGetNumberValue(pJson, "current_term", pStore->currentTerm, code);
+  if (code < 0) return -1;
+  tjsonGetNumberValue(pJson, "vote_for_addr", pStore->voteFor.addr, code);
+  if (code < 0) return -1;
+  tjsonGetInt32ValueFromDouble(pJson, "vote_for_vgid", pStore->voteFor.vgId, code);
+  if (code < 0) return -1;
 
-  SRaftStore *pRaftStore = taosMemoryCalloc(1, sizeof(SRaftStore));
-  if (pRaftStore == NULL) {
-    terrno = TSDB_CODE_OUT_OF_MEMORY;
-    return NULL;
-  }
-
-  snprintf(pRaftStore->path, sizeof(pRaftStore->path), "%s", path);
-  if (!raftStoreFileExist(pRaftStore->path)) {
-    ret = raftStoreInit(pRaftStore);
-    ASSERT(ret == 0);
-  }
-
-  char storeBuf[RAFT_STORE_BLOCK_SIZE] = {0};
-  pRaftStore->pFile = taosOpenFile(path, TD_FILE_READ | TD_FILE_WRITE);
-  ASSERT(pRaftStore->pFile != NULL);
-
-  int len = taosReadFile(pRaftStore->pFile, storeBuf, RAFT_STORE_BLOCK_SIZE);
-  ASSERT(len > 0);
-
-  ret = raftStoreDeserialize(pRaftStore, storeBuf, len);
-  ASSERT(ret == 0);
-
-  return pRaftStore;
-}
-
-static int32_t raftStoreInit(SRaftStore *pRaftStore) {
-  ASSERT(pRaftStore != NULL);
-
-  pRaftStore->pFile = taosOpenFile(pRaftStore->path, TD_FILE_CREATE | TD_FILE_WRITE);
-  ASSERT(pRaftStore->pFile != NULL);
-
-  pRaftStore->currentTerm = 0;
-  pRaftStore->voteFor.addr = 0;
-  pRaftStore->voteFor.vgId = 0;
-
-  int32_t ret = raftStorePersist(pRaftStore);
-  ASSERT(ret == 0);
-
-  taosCloseFile(&pRaftStore->pFile);
-  return 0;
-}
-
-int32_t raftStoreClose(SRaftStore *pRaftStore) {
-  if (pRaftStore == NULL) return 0;
-
-  taosCloseFile(&pRaftStore->pFile);
-  taosMemoryFree(pRaftStore);
-  pRaftStore = NULL;
   return 0;
 }
 
-int32_t raftStorePersist(SRaftStore *pRaftStore) {
-  ASSERT(pRaftStore != NULL);
-
-  int32_t ret;
-  char    storeBuf[RAFT_STORE_BLOCK_SIZE] = {0};
-  ret = raftStoreSerialize(pRaftStore, storeBuf, sizeof(storeBuf));
-  ASSERT(ret == 0);
+int32_t raftStoreReadFile(SSyncNode *pNode) {
+  int32_t     code = -1;
+  TdFilePtr   pFile = NULL;
+  char       *pData = NULL;
+  SJson      *pJson = NULL;
+  const char *file = pNode->raftStorePath;
+  SRaftStore *pStore = &pNode->raftStore;
+
+  if (taosStatFile(file, NULL, NULL) < 0) {
+    sInfo("vgId:%d, raft store file:%s not exist, use default value", pNode->vgId, file);
+    pStore->currentTerm = 0;
+    pStore->voteFor.addr = 0;
+    pStore->voteFor.vgId = 0;
+    return raftStoreWriteFile(pNode);
+  }
 
-  taosLSeekFile(pRaftStore->pFile, 0, SEEK_SET);
+  pFile = taosOpenFile(file, TD_FILE_READ);
+  if (pFile == NULL) {
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    sError("vgId:%d, failed to open raft store file:%s since %s", pNode->vgId, file, terrstr());
+    goto _OVER;
+  }
 
-  ret = taosWriteFile(pRaftStore->pFile, storeBuf, sizeof(storeBuf));
-  ASSERT(ret == RAFT_STORE_BLOCK_SIZE);
+  int64_t size = 0;
+  if (taosFStatFile(pFile, &size, NULL) < 0) {
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    sError("vgId:%d, failed to fstat raft store file:%s since %s", pNode->vgId, file, terrstr());
+    goto _OVER;
+  }
 
-  taosFsyncFile(pRaftStore->pFile);
-  return 0;
-}
+  pData = taosMemoryMalloc(size + 1);
+  if (pData == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    goto _OVER;
+  }
 
-static bool raftStoreFileExist(char *path) {
-  bool b = taosStatFile(path, NULL, NULL) >= 0;
-  return b;
-}
+  if (taosReadFile(pFile, pData, size) != size) {
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    sError("vgId:%d, failed to read raft store file:%s since %s", pNode->vgId, file, terrstr());
+    goto _OVER;
+  }
 
-int32_t raftStoreSerialize(SRaftStore *pRaftStore, char *buf, size_t len) {
-  ASSERT(pRaftStore != NULL);
+  pData[size] = '\0';
 
-  cJSON *pRoot = cJSON_CreateObject();
+  pJson = tjsonParse(pData);
+  if (pJson == NULL) {
+    terrno = TSDB_CODE_INVALID_JSON_FORMAT;
+    goto _OVER;
+  }
 
-  char u64Buf[128] = {0};
-  snprintf(u64Buf, sizeof(u64Buf), "%" PRIu64 "", pRaftStore->currentTerm);
-  cJSON_AddStringToObject(pRoot, "current_term", u64Buf);
+  if (raftStoreDecode(pJson, pStore) < 0) {
+    terrno = TSDB_CODE_INVALID_JSON_FORMAT;
+    goto _OVER;
+  }
 
-  snprintf(u64Buf, sizeof(u64Buf), "%" PRIu64 "", pRaftStore->voteFor.addr);
-  cJSON_AddStringToObject(pRoot, "vote_for_addr", u64Buf);
+  code = 0;
+  sInfo("vgId:%d, succceed to read raft store file %s", pNode->vgId, file);
 
-  cJSON_AddNumberToObject(pRoot, "vote_for_vgid", pRaftStore->voteFor.vgId);
+_OVER:
+  if (pData != NULL) taosMemoryFree(pData);
+  if (pJson != NULL) cJSON_Delete(pJson);
+  if (pFile != NULL) taosCloseFile(&pFile);
 
-  char *serialized = cJSON_Print(pRoot);
-  int   len2 = strlen(serialized);
-  ASSERT(len2 < len);
-  memset(buf, 0, len);
-  snprintf(buf, len, "%s", serialized);
-  taosMemoryFree(serialized);
+  if (code != 0) {
+    sError("vgId:%d, failed to read raft store file:%s since %s", pNode->vgId, file, terrstr());
+  }
+  return code;
+}
 
-  cJSON_Delete(pRoot);
+static int32_t raftStoreEncode(SJson *pJson, SRaftStore *pStore) {
+  if (tjsonAddIntegerToObject(pJson, "current_term", pStore->currentTerm) < 0) return -1;
+  if (tjsonAddIntegerToObject(pJson, "vote_for_addr", pStore->voteFor.addr) < 0) return -1;
+  if (tjsonAddDoubleToObject(pJson, "vote_for_vgid", pStore->voteFor.vgId) < 0) return -1;
   return 0;
 }
 
-int32_t raftStoreDeserialize(SRaftStore *pRaftStore, char *buf, size_t len) {
-  ASSERT(pRaftStore != NULL);
-
-  ASSERT(len > 0 && len <= RAFT_STORE_BLOCK_SIZE);
-  cJSON *pRoot = cJSON_Parse(buf);
-
-  cJSON *pCurrentTerm = cJSON_GetObjectItem(pRoot, "current_term");
-  ASSERT(cJSON_IsString(pCurrentTerm));
-  sscanf(pCurrentTerm->valuestring, "%" PRIu64 "", &(pRaftStore->currentTerm));
-
-  cJSON *pVoteForAddr = cJSON_GetObjectItem(pRoot, "vote_for_addr");
-  ASSERT(cJSON_IsString(pVoteForAddr));
-  sscanf(pVoteForAddr->valuestring, "%" PRIu64 "", &(pRaftStore->voteFor.addr));
-
-  cJSON *pVoteForVgid = cJSON_GetObjectItem(pRoot, "vote_for_vgid");
-  pRaftStore->voteFor.vgId = pVoteForVgid->valueint;
-
-  cJSON_Delete(pRoot);
-  return 0;
+int32_t raftStoreWriteFile(SSyncNode *pNode) {
+  int32_t     code = -1;
+  char       *buffer = NULL;
+  SJson      *pJson = NULL;
+  TdFilePtr   pFile = NULL;
+  const char *realfile = pNode->raftStorePath;
+  SRaftStore *pStore = &pNode->raftStore;
+  char        file[PATH_MAX] = {0};
+  snprintf(file, sizeof(file), "%s.bak", realfile);
+
+  terrno = TSDB_CODE_OUT_OF_MEMORY;
+  pJson = tjsonCreateObject();
+  if (pJson == NULL) goto _OVER;
+  if (raftStoreEncode(pJson, pStore) != 0) goto _OVER;
+  buffer = tjsonToString(pJson);
+  if (buffer == NULL) goto _OVER;
+  terrno = 0;
+
+  pFile = taosOpenFile(file, TD_FILE_CREATE | TD_FILE_WRITE | TD_FILE_TRUNC);
+  if (pFile == NULL) goto _OVER;
+
+  int32_t len = strlen(buffer);
+  if (taosWriteFile(pFile, buffer, len) <= 0) goto _OVER;
+  if (taosFsyncFile(pFile) < 0) goto _OVER;
+
+  taosCloseFile(&pFile);
+  if (taosRenameFile(file, realfile) != 0) goto _OVER;
+
+  code = 0;
+  sInfo("vgId:%d, succeed to write raft store file:%s, len:%d", pNode->vgId, realfile, len);
+
+_OVER:
+  if (pJson != NULL) tjsonDelete(pJson);
+  if (buffer != NULL) taosMemoryFree(buffer);
+  if (pFile != NULL) taosCloseFile(&pFile);
+
+  if (code != 0) {
+    if (terrno == 0) terrno = TAOS_SYSTEM_ERROR(errno);
+    sError("vgId:%d, failed to write raft store file:%s since %s", pNode->vgId, realfile, terrstr());
+  }
+  return code;
 }
 
-bool raftStoreHasVoted(SRaftStore *pRaftStore) {
-  bool b = syncUtilEmptyId(&(pRaftStore->voteFor));
+bool raftStoreHasVoted(SSyncNode *pNode) {
+  bool b = syncUtilEmptyId(&pNode->raftStore.voteFor);
   return (!b);
 }
 
-void raftStoreVote(SRaftStore *pRaftStore, SRaftId *pRaftId) {
-  ASSERT(!syncUtilEmptyId(pRaftId));
-  pRaftStore->voteFor = *pRaftId;
-  raftStorePersist(pRaftStore);
+void raftStoreVote(SSyncNode *pNode, SRaftId *pRaftId) {
+  pNode->raftStore.voteFor = *pRaftId;
+  (void)raftStoreWriteFile(pNode);
 }
 
-void raftStoreClearVote(SRaftStore *pRaftStore) {
-  pRaftStore->voteFor = EMPTY_RAFT_ID;
-  raftStorePersist(pRaftStore);
+void raftStoreClearVote(SSyncNode *pNode) {
+  pNode->raftStore.voteFor = EMPTY_RAFT_ID;
+  (void)raftStoreWriteFile(pNode);
 }
 
-void raftStoreNextTerm(SRaftStore *pRaftStore) {
-  ++(pRaftStore->currentTerm);
-  raftStorePersist(pRaftStore);
+void raftStoreNextTerm(SSyncNode *pNode) {
+  pNode->raftStore.currentTerm++;
+  (void)raftStoreWriteFile(pNode);
 }
 
-void raftStoreSetTerm(SRaftStore *pRaftStore, SyncTerm term) {
-  pRaftStore->currentTerm = term;
-  raftStorePersist(pRaftStore);
+void raftStoreSetTerm(SSyncNode *pNode, SyncTerm term) {
+  pNode->raftStore.currentTerm = term;
+  (void)raftStoreWriteFile(pNode);
 }
diff --git a/source/libs/sync/src/syncReplication.c b/source/libs/sync/src/syncReplication.c
index e3058768f8..1aa476e84e 100644
--- a/source/libs/sync/src/syncReplication.c
+++ b/source/libs/sync/src/syncReplication.c
@@ -122,7 +122,7 @@ int32_t syncNodeReplicateOne(SSyncNode* pSyncNode, SRaftId* pDestId, bool snapsh
   ASSERT(pMsg != NULL);
   pMsg->srcId = pSyncNode->myRaftId;
   pMsg->destId = *pDestId;
-  pMsg->term = pSyncNode->pRaftStore->currentTerm;
+  pMsg->term = pSyncNode->raftStore.currentTerm;
   pMsg->prevLogIndex = preLogIndex;
   pMsg->prevLogTerm = preLogTerm;
   pMsg->commitIndex = pSyncNode->commitIndex;
@@ -245,7 +245,7 @@ int32_t syncNodeHeartbeatPeers(SSyncNode* pSyncNode) {
     SyncHeartbeat* pSyncMsg = rpcMsg.pCont;
     pSyncMsg->srcId = pSyncNode->myRaftId;
     pSyncMsg->destId = pSyncNode->peersId[i];
-    pSyncMsg->term = pSyncNode->pRaftStore->currentTerm;
+    pSyncMsg->term = pSyncNode->raftStore.currentTerm;
     pSyncMsg->commitIndex = pSyncNode->commitIndex;
     pSyncMsg->minMatchIndex = syncMinMatchIndex(pSyncNode);
     pSyncMsg->privateTerm = 0;
diff --git a/source/libs/sync/src/syncRequestVote.c b/source/libs/sync/src/syncRequestVote.c
index 773befe1e4..e9a18dfe86 100644
--- a/source/libs/sync/src/syncRequestVote.c
+++ b/source/libs/sync/src/syncRequestVote.c
@@ -44,12 +44,12 @@
 //       /\ UNCHANGED <<state, currentTerm, candidateVars, leaderVars, logVars>>
 //
 
-static bool syncNodeOnRequestVoteLogOK(SSyncNode* pSyncNode, SyncRequestVote* pMsg) {
-  SyncTerm  myLastTerm = syncNodeGetLastTerm(pSyncNode);
-  SyncIndex myLastIndex = syncNodeGetLastIndex(pSyncNode);
+static bool syncNodeOnRequestVoteLogOK(SSyncNode* ths, SyncRequestVote* pMsg) {
+  SyncTerm  myLastTerm = syncNodeGetLastTerm(ths);
+  SyncIndex myLastIndex = syncNodeGetLastIndex(ths);
 
-  if (pMsg->lastLogIndex < pSyncNode->commitIndex) {
-    sNTrace(pSyncNode,
+  if (pMsg->lastLogIndex < ths->commitIndex) {
+    sNTrace(ths,
             "logok:0, {my-lterm:%" PRIu64 ", my-lindex:%" PRId64 ", recv-lterm:%" PRIu64 ", recv-lindex:%" PRId64
             ", recv-term:%" PRIu64 "}",
             myLastTerm, myLastIndex, pMsg->lastLogTerm, pMsg->lastLogIndex, pMsg->term);
@@ -58,7 +58,7 @@ static bool syncNodeOnRequestVoteLogOK(SSyncNode* pSyncNode, SyncRequestVote* pM
   }
 
   if (myLastTerm == SYNC_TERM_INVALID) {
-    sNTrace(pSyncNode,
+    sNTrace(ths,
             "logok:0, {my-lterm:%" PRIu64 ", my-lindex:%" PRId64 ", recv-lterm:%" PRIu64 ", recv-lindex:%" PRId64
             ", recv-term:%" PRIu64 "}",
             myLastTerm, myLastIndex, pMsg->lastLogTerm, pMsg->lastLogIndex, pMsg->term);
@@ -66,7 +66,7 @@ static bool syncNodeOnRequestVoteLogOK(SSyncNode* pSyncNode, SyncRequestVote* pM
   }
 
   if (pMsg->lastLogTerm > myLastTerm) {
-    sNTrace(pSyncNode,
+    sNTrace(ths,
             "logok:1, {my-lterm:%" PRIu64 ", my-lindex:%" PRId64 ", recv-lterm:%" PRIu64 ", recv-lindex:%" PRId64
             ", recv-term:%" PRIu64 "}",
             myLastTerm, myLastIndex, pMsg->lastLogTerm, pMsg->lastLogIndex, pMsg->term);
@@ -74,14 +74,14 @@ static bool syncNodeOnRequestVoteLogOK(SSyncNode* pSyncNode, SyncRequestVote* pM
   }
 
   if (pMsg->lastLogTerm == myLastTerm && pMsg->lastLogIndex >= myLastIndex) {
-    sNTrace(pSyncNode,
+    sNTrace(ths,
             "logok:1, {my-lterm:%" PRIu64 ", my-lindex:%" PRId64 ", recv-lterm:%" PRIu64 ", recv-lindex:%" PRId64
             ", recv-term:%" PRIu64 "}",
             myLastTerm, myLastIndex, pMsg->lastLogTerm, pMsg->lastLogIndex, pMsg->term);
     return true;
   }
 
-  sNTrace(pSyncNode,
+  sNTrace(ths,
           "logok:0, {my-lterm:%" PRIu64 ", my-lindex:%" PRId64 ", recv-lterm:%" PRIu64 ", recv-lindex:%" PRId64
           ", recv-term:%" PRIu64 "}",
           myLastTerm, myLastIndex, pMsg->lastLogTerm, pMsg->lastLogIndex, pMsg->term);
@@ -93,7 +93,7 @@ int32_t syncNodeOnRequestVote(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
   SyncRequestVote* pMsg = pRpcMsg->pCont;
 
   // if already drop replica, do not process
-  if (!syncNodeInRaftGroup(ths, &(pMsg->srcId))) {
+  if (!syncNodeInRaftGroup(ths, &pMsg->srcId)) {
     syncLogRecvRequestVote(ths, pMsg, -1, "not in my config");
     return -1;
   }
@@ -101,21 +101,21 @@ int32_t syncNodeOnRequestVote(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
   bool logOK = syncNodeOnRequestVoteLogOK(ths, pMsg);
 
   // maybe update term
-  if (pMsg->term > ths->pRaftStore->currentTerm) {
+  if (pMsg->term > ths->raftStore.currentTerm) {
     syncNodeStepDown(ths, pMsg->term);
     // syncNodeUpdateTerm(ths, pMsg->term);
   }
-  ASSERT(pMsg->term <= ths->pRaftStore->currentTerm);
+  ASSERT(pMsg->term <= ths->raftStore.currentTerm);
 
-  bool grant = (pMsg->term == ths->pRaftStore->currentTerm) && logOK &&
-               ((!raftStoreHasVoted(ths->pRaftStore)) || (syncUtilSameId(&(ths->pRaftStore->voteFor), &(pMsg->srcId))));
+  bool grant = (pMsg->term == ths->raftStore.currentTerm) && logOK &&
+               ((!raftStoreHasVoted(ths)) || (syncUtilSameId(&ths->raftStore.voteFor, &pMsg->srcId)));
   if (grant) {
     // maybe has already voted for pMsg->srcId
     // vote again, no harm
-    raftStoreVote(ths->pRaftStore, &(pMsg->srcId));
+    raftStoreVote(ths, &(pMsg->srcId));
 
     // candidate ?
-    syncNodeStepDown(ths, ths->pRaftStore->currentTerm);
+    syncNodeStepDown(ths, ths->raftStore.currentTerm);
 
     // forbid elect for this round
     syncNodeResetElectTimer(ths);
@@ -129,7 +129,7 @@ int32_t syncNodeOnRequestVote(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
   SyncRequestVoteReply* pReply = rpcMsg.pCont;
   pReply->srcId = ths->myRaftId;
   pReply->destId = pMsg->srcId;
-  pReply->term = ths->pRaftStore->currentTerm;
+  pReply->term = ths->raftStore.currentTerm;
   pReply->voteGranted = grant;
 
   // trace log
diff --git a/source/libs/sync/src/syncRequestVoteReply.c b/source/libs/sync/src/syncRequestVoteReply.c
index 563f475070..a0d6cbf597 100644
--- a/source/libs/sync/src/syncRequestVoteReply.c
+++ b/source/libs/sync/src/syncRequestVoteReply.c
@@ -49,25 +49,25 @@ int32_t syncNodeOnRequestVoteReply(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
   }
 
   // drop stale response
-  if (pMsg->term < ths->pRaftStore->currentTerm) {
+  if (pMsg->term < ths->raftStore.currentTerm) {
     syncLogRecvRequestVoteReply(ths, pMsg, "drop stale response");
     return -1;
   }
 
-  // ASSERT(!(pMsg->term > ths->pRaftStore->currentTerm));
+  // ASSERT(!(pMsg->term > ths->raftStore.currentTerm));
   //  no need this code, because if I receive reply.term, then I must have sent for that term.
-  //   if (pMsg->term > ths->pRaftStore->currentTerm) {
+  //   if (pMsg->term > ths->raftStore.currentTerm) {
   //     syncNodeUpdateTerm(ths, pMsg->term);
   //   }
 
-  if (pMsg->term > ths->pRaftStore->currentTerm) {
+  if (pMsg->term > ths->raftStore.currentTerm) {
     syncLogRecvRequestVoteReply(ths, pMsg, "error term");
     syncNodeStepDown(ths, pMsg->term);
     return -1;
   }
 
   syncLogRecvRequestVoteReply(ths, pMsg, "");
-  ASSERT(pMsg->term == ths->pRaftStore->currentTerm);
+  ASSERT(pMsg->term == ths->raftStore.currentTerm);
 
   // This tallies votes even when the current state is not Candidate,
   // but they won't be looked at, so it doesn't matter.
diff --git a/source/libs/sync/src/syncRespMgr.c b/source/libs/sync/src/syncRespMgr.c
index b55aae4c76..9373eccaef 100644
--- a/source/libs/sync/src/syncRespMgr.c
+++ b/source/libs/sync/src/syncRespMgr.c
@@ -143,7 +143,7 @@ static void syncRespCleanByTTL(SSyncRespMgr *pObj, int64_t ttl, bool rsp) {
           .state = pNode->state,
           .seqNum = *pSeqNum,
           .term = SYNC_TERM_INVALID,
-          .currentTerm = pNode->pRaftStore->currentTerm,
+          .currentTerm = pNode->raftStore.currentTerm,
           .flag = 0,
       };
 
diff --git a/source/libs/sync/src/syncSnapshot.c b/source/libs/sync/src/syncSnapshot.c
index defb7402f4..880c76e4dd 100644
--- a/source/libs/sync/src/syncSnapshot.c
+++ b/source/libs/sync/src/syncSnapshot.c
@@ -43,7 +43,7 @@ SSyncSnapshotSender *snapshotSenderCreate(SSyncNode *pSyncNode, int32_t replicaI
   pSender->sendingMS = SYNC_SNAPSHOT_RETRY_MS;
   pSender->pSyncNode = pSyncNode;
   pSender->replicaIndex = replicaIndex;
-  pSender->term = pSyncNode->pRaftStore->currentTerm;
+  pSender->term = pSyncNode->raftStore.currentTerm;
   pSender->startTime = 0;
   pSender->endTime = 0;
   pSender->pSyncNode->pFsm->FpGetSnapshotInfo(pSender->pSyncNode->pFsm, &pSender->snapshot);
@@ -90,7 +90,7 @@ int32_t snapshotSenderStart(SSyncSnapshotSender *pSender) {
 
   memset(&pSender->lastConfig, 0, sizeof(pSender->lastConfig));
   pSender->sendingMS = 0;
-  pSender->term = pSender->pSyncNode->pRaftStore->currentTerm;
+  pSender->term = pSender->pSyncNode->raftStore.currentTerm;
   pSender->startTime = taosGetTimestampMs();
   pSender->lastSendTime = pSender->startTime;
   pSender->finish = false;
@@ -105,7 +105,7 @@ int32_t snapshotSenderStart(SSyncSnapshotSender *pSender) {
   SyncSnapshotSend *pMsg = rpcMsg.pCont;
   pMsg->srcId = pSender->pSyncNode->myRaftId;
   pMsg->destId = pSender->pSyncNode->replicasId[pSender->replicaIndex];
-  pMsg->term = pSender->pSyncNode->pRaftStore->currentTerm;
+  pMsg->term = pSender->pSyncNode->raftStore.currentTerm;
   pMsg->beginIndex = pSender->snapshotParam.start;
   pMsg->lastIndex = pSender->snapshot.lastApplyIndex;
   pMsg->lastTerm = pSender->snapshot.lastApplyTerm;
@@ -185,7 +185,7 @@ static int32_t snapshotSend(SSyncSnapshotSender *pSender) {
   SyncSnapshotSend *pMsg = rpcMsg.pCont;
   pMsg->srcId = pSender->pSyncNode->myRaftId;
   pMsg->destId = pSender->pSyncNode->replicasId[pSender->replicaIndex];
-  pMsg->term = pSender->pSyncNode->pRaftStore->currentTerm;
+  pMsg->term = pSender->pSyncNode->raftStore.currentTerm;
   pMsg->beginIndex = pSender->snapshotParam.start;
   pMsg->lastIndex = pSender->snapshot.lastApplyIndex;
   pMsg->lastTerm = pSender->snapshot.lastApplyTerm;
@@ -226,7 +226,7 @@ int32_t snapshotReSend(SSyncSnapshotSender *pSender) {
   SyncSnapshotSend *pMsg = rpcMsg.pCont;
   pMsg->srcId = pSender->pSyncNode->myRaftId;
   pMsg->destId = pSender->pSyncNode->replicasId[pSender->replicaIndex];
-  pMsg->term = pSender->pSyncNode->pRaftStore->currentTerm;
+  pMsg->term = pSender->pSyncNode->raftStore.currentTerm;
   pMsg->beginIndex = pSender->snapshotParam.start;
   pMsg->lastIndex = pSender->snapshot.lastApplyIndex;
   pMsg->lastTerm = pSender->snapshot.lastApplyTerm;
@@ -314,7 +314,7 @@ SSyncSnapshotReceiver *snapshotReceiverCreate(SSyncNode *pSyncNode, SRaftId from
   pReceiver->pWriter = NULL;
   pReceiver->pSyncNode = pSyncNode;
   pReceiver->fromId = fromId;
-  pReceiver->term = pSyncNode->pRaftStore->currentTerm;
+  pReceiver->term = pSyncNode->raftStore.currentTerm;
   pReceiver->snapshot.data = NULL;
   pReceiver->snapshot.lastApplyIndex = SYNC_INDEX_INVALID;
   pReceiver->snapshot.lastApplyTerm = 0;
@@ -380,7 +380,7 @@ void snapshotReceiverStart(SSyncSnapshotReceiver *pReceiver, SyncSnapshotSend *p
 
   pReceiver->start = true;
   pReceiver->ack = SYNC_SNAPSHOT_SEQ_PRE_SNAPSHOT;
-  pReceiver->term = pReceiver->pSyncNode->pRaftStore->currentTerm;
+  pReceiver->term = pReceiver->pSyncNode->raftStore.currentTerm;
   pReceiver->fromId = pPreMsg->srcId;
   pReceiver->startTime = pPreMsg->startTime;
 
@@ -437,9 +437,9 @@ static int32_t snapshotReceiverFinish(SSyncSnapshotReceiver *pReceiver, SyncSnap
     }
 
     // maybe update term
-    if (pReceiver->snapshot.lastApplyTerm > pReceiver->pSyncNode->pRaftStore->currentTerm) {
-      pReceiver->pSyncNode->pRaftStore->currentTerm = pReceiver->snapshot.lastApplyTerm;
-      raftStorePersist(pReceiver->pSyncNode->pRaftStore);
+    if (pReceiver->snapshot.lastApplyTerm > pReceiver->pSyncNode->raftStore.currentTerm) {
+      pReceiver->pSyncNode->raftStore.currentTerm = pReceiver->snapshot.lastApplyTerm;
+      (void)raftStoreWriteFile(pReceiver->pSyncNode);
     }
 
     // stop writer, apply data
@@ -592,7 +592,7 @@ _SEND_REPLY:
   SyncSnapshotRsp *pRspMsg = rpcMsg.pCont;
   pRspMsg->srcId = pSyncNode->myRaftId;
   pRspMsg->destId = pMsg->srcId;
-  pRspMsg->term = pSyncNode->pRaftStore->currentTerm;
+  pRspMsg->term = pSyncNode->raftStore.currentTerm;
   pRspMsg->lastIndex = pMsg->lastIndex;
   pRspMsg->lastTerm = pMsg->lastTerm;
   pRspMsg->startTime = pReceiver->startTime;
@@ -648,7 +648,7 @@ _SEND_REPLY:
   SyncSnapshotRsp *pRspMsg = rpcMsg.pCont;
   pRspMsg->srcId = pSyncNode->myRaftId;
   pRspMsg->destId = pMsg->srcId;
-  pRspMsg->term = pSyncNode->pRaftStore->currentTerm;
+  pRspMsg->term = pSyncNode->raftStore.currentTerm;
   pRspMsg->lastIndex = pMsg->lastIndex;
   pRspMsg->lastTerm = pMsg->lastTerm;
   pRspMsg->startTime = pReceiver->startTime;
@@ -698,7 +698,7 @@ static int32_t syncNodeOnSnapshotReceive(SSyncNode *pSyncNode, SyncSnapshotSend
   SyncSnapshotRsp *pRspMsg = rpcMsg.pCont;
   pRspMsg->srcId = pSyncNode->myRaftId;
   pRspMsg->destId = pMsg->srcId;
-  pRspMsg->term = pSyncNode->pRaftStore->currentTerm;
+  pRspMsg->term = pSyncNode->raftStore.currentTerm;
   pRspMsg->lastIndex = pMsg->lastIndex;
   pRspMsg->lastTerm = pMsg->lastTerm;
   pRspMsg->startTime = pReceiver->startTime;
@@ -745,7 +745,7 @@ static int32_t syncNodeOnSnapshotEnd(SSyncNode *pSyncNode, SyncSnapshotSend *pMs
   SyncSnapshotRsp *pRspMsg = rpcMsg.pCont;
   pRspMsg->srcId = pSyncNode->myRaftId;
   pRspMsg->destId = pMsg->srcId;
-  pRspMsg->term = pSyncNode->pRaftStore->currentTerm;
+  pRspMsg->term = pSyncNode->raftStore.currentTerm;
   pRspMsg->lastIndex = pMsg->lastIndex;
   pRspMsg->lastTerm = pMsg->lastTerm;
   pRspMsg->startTime = pReceiver->startTime;
@@ -794,13 +794,13 @@ int32_t syncNodeOnSnapshot(SSyncNode *pSyncNode, const SRpcMsg *pRpcMsg) {
     return -1;
   }
 
-  if (pMsg->term < pSyncNode->pRaftStore->currentTerm) {
+  if (pMsg->term < pSyncNode->raftStore.currentTerm) {
     syncLogRecvSyncSnapshotSend(pSyncNode, pMsg, "reject since small term");
     terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
     return -1;
   }
 
-  if (pMsg->term > pSyncNode->pRaftStore->currentTerm) {
+  if (pMsg->term > pSyncNode->raftStore.currentTerm) {
     syncNodeStepDown(pSyncNode, pMsg->term);
   }
   syncNodeResetElectTimer(pSyncNode);
@@ -808,7 +808,7 @@ int32_t syncNodeOnSnapshot(SSyncNode *pSyncNode, const SRpcMsg *pRpcMsg) {
   // state, term, seq/ack
   int32_t code = 0;
   if (pSyncNode->state == TAOS_SYNC_STATE_FOLLOWER) {
-    if (pMsg->term == pSyncNode->pRaftStore->currentTerm) {
+    if (pMsg->term == pSyncNode->raftStore.currentTerm) {
       if (pMsg->seq == SYNC_SNAPSHOT_SEQ_PRE_SNAPSHOT) {
         syncLogRecvSyncSnapshotSend(pSyncNode, pMsg, "process seq pre-snapshot");
         code = syncNodeOnSnapshotPre(pSyncNode, pMsg);
@@ -892,7 +892,7 @@ static int32_t syncNodeOnSnapshotPreRsp(SSyncNode *pSyncNode, SSyncSnapshotSende
   SyncSnapshotSend *pSendMsg = rpcMsg.pCont;
   pSendMsg->srcId = pSender->pSyncNode->myRaftId;
   pSendMsg->destId = pSender->pSyncNode->replicasId[pSender->replicaIndex];
-  pSendMsg->term = pSender->pSyncNode->pRaftStore->currentTerm;
+  pSendMsg->term = pSender->pSyncNode->raftStore.currentTerm;
   pSendMsg->beginIndex = pSender->snapshotParam.start;
   pSendMsg->lastIndex = pSender->snapshot.lastApplyIndex;
   pSendMsg->lastTerm = pSender->snapshot.lastApplyTerm;
@@ -951,10 +951,10 @@ int32_t syncNodeOnSnapshotRsp(SSyncNode *pSyncNode, const SRpcMsg *pRpcMsg) {
     goto _ERROR;
   }
 
-  if (pMsg->term != pSyncNode->pRaftStore->currentTerm) {
+  if (pMsg->term != pSyncNode->raftStore.currentTerm) {
     syncLogRecvSyncSnapshotRsp(pSyncNode, pMsg, "snapshot sender and receiver term not match");
     sSError(pSender, "snapshot sender term not equal, msg term:%" PRId64 " currentTerm:%" PRId64, pMsg->term,
-            pSyncNode->pRaftStore->currentTerm);
+            pSyncNode->raftStore.currentTerm);
     terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
     goto _ERROR;
   }
diff --git a/source/libs/sync/src/syncUtil.c b/source/libs/sync/src/syncUtil.c
index e4a65837f7..b246d9a79d 100644
--- a/source/libs/sync/src/syncUtil.c
+++ b/source/libs/sync/src/syncUtil.c
@@ -158,8 +158,8 @@ static void syncPeerState2Str(SSyncNode* pSyncNode, char* buf, int32_t bufLen) {
 }
 
 void syncPrintNodeLog(const char* flags, ELogLevel level, int32_t dflag, SSyncNode* pNode, const char* format, ...) {
-  if (pNode == NULL || pNode->pRaftStore == NULL || pNode->pLogStore == NULL) return;
-  int64_t currentTerm = pNode->pRaftStore->currentTerm;
+  if (pNode == NULL || pNode->pLogStore == NULL) return;
+  int64_t currentTerm = pNode->raftStore.currentTerm;
 
   // save error code, otherwise it will be overwritten
   int32_t errCode = terrno;
@@ -228,7 +228,7 @@ void syncPrintNodeLog(const char* flags, ELogLevel level, int32_t dflag, SSyncNo
 void syncPrintSnapshotSenderLog(const char* flags, ELogLevel level, int32_t dflag, SSyncSnapshotSender* pSender,
                                 const char* format, ...) {
   SSyncNode* pNode = pSender->pSyncNode;
-  if (pNode == NULL || pNode->pRaftStore == NULL || pNode->pLogStore == NULL) return;
+  if (pNode == NULL || pNode->pLogStore == NULL) return;
 
   SSnapshot snapshot = {.data = NULL, .lastApplyIndex = -1, .lastApplyTerm = 0};
   if (pNode->pFsm != NULL && pNode->pFsm->FpGetSnapshotInfo != NULL) {
@@ -264,7 +264,7 @@ void syncPrintSnapshotSenderLog(const char* flags, ELogLevel level, int32_t dfla
                pNode->vgId, eventLog, syncStr(pNode->state), pSender, pSender->snapshotParam.start,
                pSender->snapshotParam.end, pSender->snapshot.lastApplyIndex, pSender->snapshot.lastApplyTerm,
                pSender->snapshot.lastConfigIndex, pSender->seq, pSender->ack, pSender->finish, pSender->replicaIndex,
-               DID(&pNode->replicasId[pSender->replicaIndex]), pNode->pRaftStore->currentTerm, pNode->commitIndex,
+               DID(&pNode->replicasId[pSender->replicaIndex]), pNode->raftStore.currentTerm, pNode->commitIndex,
                logBeginIndex, logLastIndex, pNode->minMatchIndex, snapshot.lastApplyIndex, snapshot.lastApplyTerm,
                pNode->raftCfg.isStandBy, pNode->raftCfg.snapshotStrategy, pNode->raftCfg.batchSize, pNode->replicaNum,
                pNode->raftCfg.lastConfigIndex, pNode->changing, pNode->restoreFinish, syncNodeDynamicQuorum(pNode),
@@ -274,7 +274,7 @@ void syncPrintSnapshotSenderLog(const char* flags, ELogLevel level, int32_t dfla
 void syncPrintSnapshotReceiverLog(const char* flags, ELogLevel level, int32_t dflag, SSyncSnapshotReceiver* pReceiver,
                                   const char* format, ...) {
   SSyncNode* pNode = pReceiver->pSyncNode;
-  if (pNode == NULL || pNode->pRaftStore == NULL || pNode->pLogStore == NULL) return;
+  if (pNode == NULL || pNode->pLogStore == NULL) return;
 
   SSnapshot snapshot = {.data = NULL, .lastApplyIndex = -1, .lastApplyTerm = 0};
   if (pNode->pFsm != NULL && pNode->pFsm->FpGetSnapshotInfo != NULL) {
@@ -311,7 +311,7 @@ void syncPrintSnapshotReceiverLog(const char* flags, ELogLevel level, int32_t df
                pNode->vgId, eventLog, syncStr(pNode->state), pReceiver, pReceiver->start, pReceiver->ack,
                pReceiver->term, pReceiver->startTime, DID(&pReceiver->fromId), pReceiver->snapshotParam.start,
                pReceiver->snapshotParam.end, pReceiver->snapshot.lastApplyIndex, pReceiver->snapshot.lastApplyTerm,
-               pReceiver->snapshot.lastConfigIndex, pNode->pRaftStore->currentTerm, pNode->commitIndex, logBeginIndex,
+               pReceiver->snapshot.lastConfigIndex, pNode->raftStore.currentTerm, pNode->commitIndex, logBeginIndex,
                logLastIndex, pNode->minMatchIndex, snapshot.lastApplyIndex, snapshot.lastApplyTerm,
                pNode->raftCfg.isStandBy, pNode->raftCfg.snapshotStrategy, pNode->raftCfg.batchSize, pNode->replicaNum,
                pNode->raftCfg.lastConfigIndex, pNode->changing, pNode->restoreFinish, syncNodeDynamicQuorum(pNode),
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 f1db2f0204..a3e76eabcc 100644
--- a/source/libs/sync/test/sync_test_lib/src/syncMainDebug.c
+++ b/source/libs/sync/test/sync_test_lib/src/syncMainDebug.c
@@ -80,7 +80,7 @@ cJSON* syncNode2Json(const SSyncNode* pSyncNode) {
     // tla+ server vars
     cJSON_AddNumberToObject(pRoot, "state", pSyncNode->state);
     cJSON_AddStringToObject(pRoot, "state_str", syncStr(pSyncNode->state));
-    cJSON_AddItemToObject(pRoot, "pRaftStore", raftStore2Json(pSyncNode->pRaftStore));
+    cJSON_AddItemToObject(pRoot, "pRaftStore", raftStore2Json(&pSyncNode.raftStore));
 
     // tla+ candidate vars
     cJSON_AddItemToObject(pRoot, "pVotesGranted", voteGranted2Json(pSyncNode->pVotesGranted));
@@ -199,7 +199,7 @@ inline char* syncNode2SimpleStr(const SSyncNode* pSyncNode) {
            ", sby:%d, "
            "r-num:%d, "
            "lcfg:%" PRId64 ", chging:%d, rsto:%d",
-           pSyncNode->vgId, syncStr(pSyncNode->state), pSyncNode->pRaftStore->currentTerm, pSyncNode->commitIndex,
+           pSyncNode->vgId, syncStr(pSyncNode->state), pSyncNode->raftStore.currentTerm, pSyncNode->commitIndex,
            logBeginIndex, logLastIndex, snapshot.lastApplyIndex, pSyncNode->raftCfg.isStandBy, pSyncNode->replicaNum,
            pSyncNode->raftCfg.lastConfigIndex, pSyncNode->changing, pSyncNode->restoreFinish);
 
diff --git a/source/libs/sync/test/sync_test_lib/src/syncSnapshotDebug.c b/source/libs/sync/test/sync_test_lib/src/syncSnapshotDebug.c
index f1237e5282..d8740de16a 100644
--- a/source/libs/sync/test/sync_test_lib/src/syncSnapshotDebug.c
+++ b/source/libs/sync/test/sync_test_lib/src/syncSnapshotDebug.c
@@ -137,7 +137,7 @@ int32_t syncNodeOnPreSnapshot(SSyncNode *ths, SyncPreSnapshot *pMsg) {
   SyncPreSnapshotReply *pMsgReply = syncPreSnapshotReplyBuild(ths->vgId);
   pMsgReply->srcId = ths->myRaftId;
   pMsgReply->destId = pMsg->srcId;
-  pMsgReply->term = ths->pRaftStore->currentTerm;
+  pMsgReply->term = ths->raftStore.currentTerm;
 
   SSyncLogStoreData *pData = ths->pLogStore->data;
   SWal              *pWal = pData->pWal;
-- 
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