diff --git a/include/libs/sync/sync.h b/include/libs/sync/sync.h
index a587ad6ef22fb80538147a61980ae4cdadd8ec03..1f71c242ae44a0be62dcd2e642376a2b350033ac 100644
--- a/include/libs/sync/sync.h
+++ b/include/libs/sync/sync.h
@@ -88,7 +88,7 @@ typedef struct SReConfigCbMeta {
 } SReConfigCbMeta;
 
 typedef struct SSnapshot {
-  void *data;
+  void*     data;
   SyncIndex lastApplyIndex;
   SyncTerm  lastApplyTerm;
 } SSnapshot;
@@ -145,6 +145,7 @@ typedef struct SSyncLogStore {
 
 typedef struct SSyncInfo {
   bool        isStandBy;
+  bool        snapshotEnable;
   SyncGroupId vgId;
   SSyncCfg    syncCfg;
   char        path[TSDB_FILENAME_LEN];
diff --git a/source/dnode/mnode/impl/src/mndSync.c b/source/dnode/mnode/impl/src/mndSync.c
index ecf7cabc134fa4c607af876182d8334220ffe2b7..8e181963140a0e9bdbee6990df2e7f670b7d1acc 100644
--- a/source/dnode/mnode/impl/src/mndSync.c
+++ b/source/dnode/mnode/impl/src/mndSync.c
@@ -146,6 +146,7 @@ int32_t mndInitSync(SMnode *pMnode) {
   syncInfo.pWal = pMgmt->pWal;
   syncInfo.pFsm = mndSyncMakeFsm(pMnode);
   syncInfo.isStandBy = pMgmt->standby;
+  syncInfo.snapshotEnable = true;
 
   SSyncCfg *pCfg = &syncInfo.syncCfg;
   pCfg->replicaNum = pMnode->replica;
diff --git a/source/dnode/vnode/src/vnd/vnodeSync.c b/source/dnode/vnode/src/vnd/vnodeSync.c
index 240b478ac0797d8e03a8311b637bc28f81d1c670..ed10a0a8a45466262d9c7bf2cc726dd784b53e53 100644
--- a/source/dnode/vnode/src/vnd/vnodeSync.c
+++ b/source/dnode/vnode/src/vnd/vnodeSync.c
@@ -26,6 +26,8 @@ static int32_t   vnodeSyncGetSnapshot(SSyncFSM *pFsm, SSnapshot *pSnapshot);
 
 int32_t vnodeSyncOpen(SVnode *pVnode, char *path) {
   SSyncInfo syncInfo = {
+      .isStandBy = false,
+      .snapshotEnable = false,
       .vgId = pVnode->config.vgId,
       .syncCfg = pVnode->config.syncCfg,
       .pWal = pVnode->pWal,
diff --git a/source/libs/sync/inc/syncElection.h b/source/libs/sync/inc/syncElection.h
index 85a82dcfb70ffd7431e41c14d81263344ec68ddb..7a3d848d465c1e4f9e0f0eff120cc506034c1073 100644
--- a/source/libs/sync/inc/syncElection.h
+++ b/source/libs/sync/inc/syncElection.h
@@ -39,6 +39,7 @@ extern "C" {
 //    /\ UNCHANGED <<serverVars, candidateVars, leaderVars, logVars>>
 //
 int32_t syncNodeRequestVotePeers(SSyncNode* pSyncNode);
+int32_t syncNodeRequestVotePeersSnapshot(SSyncNode* pSyncNode);
 int32_t syncNodeElect(SSyncNode* pSyncNode);
 int32_t syncNodeRequestVote(SSyncNode* pSyncNode, const SRaftId* destRaftId, const SyncRequestVote* pMsg);
 
diff --git a/source/libs/sync/inc/syncRaftCfg.h b/source/libs/sync/inc/syncRaftCfg.h
index 1061e8bdc4b248511eb3a580b76056cbc830f02b..86c5fab87c0febd915818442cadd310b17619676 100644
--- a/source/libs/sync/inc/syncRaftCfg.h
+++ b/source/libs/sync/inc/syncRaftCfg.h
@@ -34,6 +34,7 @@ typedef struct SRaftCfg {
   TdFilePtr pFile;
   char      path[TSDB_FILENAME_LEN * 2];
   int8_t    isStandBy;
+  int8_t    snapshotEnable;
 } SRaftCfg;
 
 SRaftCfg *raftCfgOpen(const char *path);
@@ -50,7 +51,12 @@ char *  raftCfg2Str(SRaftCfg *pRaftCfg);
 int32_t raftCfgFromJson(const cJSON *pRoot, SRaftCfg *pRaftCfg);
 int32_t raftCfgFromStr(const char *s, SRaftCfg *pRaftCfg);
 
-int32_t raftCfgCreateFile(SSyncCfg *pCfg, int8_t isStandBy, const char *path);
+typedef struct SRaftCfgMeta {
+  int8_t isStandBy;
+  int8_t snapshotEnable;
+} SRaftCfgMeta;
+
+int32_t raftCfgCreateFile(SSyncCfg *pCfg, SRaftCfgMeta meta, const char *path);
 
 // for debug ----------------------
 void syncCfgPrint(SSyncCfg *pCfg);
diff --git a/source/libs/sync/src/syncElection.c b/source/libs/sync/src/syncElection.c
index 5101344b84a7d1e508d540a15f9a2ecaa0f14075..6f2088e967537ff5972fef8546f5fa27cf7d9439 100644
--- a/source/libs/sync/src/syncElection.c
+++ b/source/libs/sync/src/syncElection.c
@@ -49,6 +49,8 @@ int32_t syncNodeRequestVotePeers(SSyncNode* pSyncNode) {
   return ret;
 }
 
+int32_t syncNodeRequestVotePeersSnapshot(SSyncNode* pSyncNode) { return 0; }
+
 int32_t syncNodeElect(SSyncNode* pSyncNode) {
   int32_t ret = 0;
   if (pSyncNode->state == TAOS_SYNC_STATE_FOLLOWER) {
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index 5ad8df11a922e14b470b5e09a916c8cb4c70a239..deec71c4a432f365d39dd8312751293597fe2e61 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -411,8 +411,11 @@ SSyncNode* syncNodeOpen(const SSyncInfo* pOldSyncInfo) {
 
   snprintf(pSyncNode->configPath, sizeof(pSyncNode->configPath), "%s/raft_config.json", pSyncInfo->path);
   if (!taosCheckExistFile(pSyncNode->configPath)) {
-    // create raft config file
-    ret = raftCfgCreateFile((SSyncCfg*)&(pSyncInfo->syncCfg), pSyncInfo->isStandBy, pSyncNode->configPath);
+    // create a new raft config file
+    SRaftCfgMeta meta;
+    meta.isStandBy = pSyncInfo->isStandBy;
+    meta.snapshotEnable = pSyncInfo->snapshotEnable;
+    ret = raftCfgCreateFile((SSyncCfg*)&(pSyncInfo->syncCfg), meta, pSyncNode->configPath);
     assert(ret == 0);
 
   } else {
diff --git a/source/libs/sync/src/syncRaftCfg.c b/source/libs/sync/src/syncRaftCfg.c
index 86a07ca4f8a9846801510ad5763f687a4db290b3..cb7562f2ca82432216ea5661f864cd4309c68a1f 100644
--- a/source/libs/sync/src/syncRaftCfg.c
+++ b/source/libs/sync/src/syncRaftCfg.c
@@ -148,6 +148,7 @@ cJSON *raftCfg2Json(SRaftCfg *pRaftCfg) {
   cJSON *pRoot = cJSON_CreateObject();
   cJSON_AddItemToObject(pRoot, "SSyncCfg", syncCfg2Json(&(pRaftCfg->cfg)));
   cJSON_AddNumberToObject(pRoot, "isStandBy", pRaftCfg->isStandBy);
+  cJSON_AddNumberToObject(pRoot, "snapshotEnable", pRaftCfg->snapshotEnable);
 
   cJSON *pJson = cJSON_CreateObject();
   cJSON_AddItemToObject(pJson, "RaftCfg", pRoot);
@@ -161,7 +162,7 @@ char *raftCfg2Str(SRaftCfg *pRaftCfg) {
   return serialized;
 }
 
-int32_t raftCfgCreateFile(SSyncCfg *pCfg, int8_t isStandBy, const char *path) {
+int32_t raftCfgCreateFile(SSyncCfg *pCfg, SRaftCfgMeta meta, const char *path) {
   assert(pCfg != NULL);
 
   TdFilePtr pFile = taosOpenFile(path, TD_FILE_CREATE | TD_FILE_WRITE);
@@ -169,7 +170,8 @@ int32_t raftCfgCreateFile(SSyncCfg *pCfg, int8_t isStandBy, const char *path) {
 
   SRaftCfg raftCfg;
   raftCfg.cfg = *pCfg;
-  raftCfg.isStandBy = isStandBy;
+  raftCfg.isStandBy = meta.isStandBy;
+  raftCfg.snapshotEnable = meta.snapshotEnable;
   char *s = raftCfg2Str(&raftCfg);
 
   char buf[CONFIG_FILE_LEN];
@@ -194,6 +196,9 @@ int32_t raftCfgFromJson(const cJSON *pRoot, SRaftCfg *pRaftCfg) {
   cJSON *pJsonIsStandBy = cJSON_GetObjectItem(pJson, "isStandBy");
   pRaftCfg->isStandBy = cJSON_GetNumberValue(pJsonIsStandBy);
 
+  cJSON *pJsonSnapshotEnable = cJSON_GetObjectItem(pJson, "snapshotEnable");
+  pRaftCfg->snapshotEnable = cJSON_GetNumberValue(pJsonSnapshotEnable);
+
   cJSON * pJsonSyncCfg = cJSON_GetObjectItem(pJson, "SSyncCfg");
   int32_t code = syncCfgFromJson(pJsonSyncCfg, &(pRaftCfg->cfg));
   ASSERT(code == 0);
diff --git a/source/libs/sync/test/syncConfigChangeTest.cpp b/source/libs/sync/test/syncConfigChangeTest.cpp
index 2880d8951484e3ee51eb10d05cda159a90129e8f..143d722b261ba4d01a7a6f86b065875785f31d21 100644
--- a/source/libs/sync/test/syncConfigChangeTest.cpp
+++ b/source/libs/sync/test/syncConfigChangeTest.cpp
@@ -93,7 +93,6 @@ SSyncFSM* createFsm() {
   pFsm->FpGetSnapshot = GetSnapshotCb;
   pFsm->FpRestoreFinishCb = RestoreFinishCb;
 
-
   pFsm->FpReConfigCb = ReConfigCb;
 
   return pFsm;
diff --git a/source/libs/sync/test/syncRaftCfgTest.cpp b/source/libs/sync/test/syncRaftCfgTest.cpp
index f5b24db651f9ed94a290aa2e1ea9611a11f74a04..564cbdb69abca3674eaaa36e2e4eca70accc06d4 100644
--- a/source/libs/sync/test/syncRaftCfgTest.cpp
+++ b/source/libs/sync/test/syncRaftCfgTest.cpp
@@ -71,7 +71,10 @@ void test3() {
   if (taosCheckExistFile(s)) {
     printf("%s file: %s already exist! \n", (char*)__FUNCTION__, s);
   } else {
-    raftCfgCreateFile(pCfg, 7, s);
+    SRaftCfgMeta meta;
+    meta.isStandBy = 7;
+    meta.snapshotEnable = 9;
+    raftCfgCreateFile(pCfg, meta, s);
     printf("%s create json file: %s \n", (char*)__FUNCTION__, s);
   }
 
@@ -94,6 +97,7 @@ void test5() {
 
   pCfg->cfg.myIndex = taosGetTimestampSec();
   pCfg->isStandBy += 2;
+  pCfg->snapshotEnable += 3;
   raftCfgPersist(pCfg);
 
   printf("%s update json file: %s myIndex->%d \n", (char*)__FUNCTION__, "./test3_raft_cfg.json", pCfg->cfg.myIndex);