diff --git a/source/libs/sync/inc/syncInt.h b/source/libs/sync/inc/syncInt.h
index d67b419b24..2b62f9b8b3 100644
--- a/source/libs/sync/inc/syncInt.h
+++ b/source/libs/sync/inc/syncInt.h
@@ -121,14 +121,17 @@ typedef struct SSyncNode {
 
   // init internal
   SNodeInfo me;
+  SRaftId   raftId;
+
   int32_t   peersNum;
   SNodeInfo peers[TSDB_MAX_REPLICA];
+  SRaftId   peersId[TSDB_MAX_REPLICA];
+
+  int32_t replicaNum;
+  SRaftId replicasId[TSDB_MAX_REPLICA];
 
   // raft algorithm
   SSyncFSM* pFsm;
-  SRaftId   raftId;
-  SRaftId   peersId[TSDB_MAX_REPLICA];
-  int32_t   replicaNum;
   int32_t   quorum;
 
   // life cycle
diff --git a/source/libs/sync/inc/syncUtil.h b/source/libs/sync/inc/syncUtil.h
index 93d2c12525..e1078d5738 100644
--- a/source/libs/sync/inc/syncUtil.h
+++ b/source/libs/sync/inc/syncUtil.h
@@ -39,8 +39,9 @@ void syncUtilraftId2EpSet(const SRaftId* raftId, SEpSet* pEpSet);
 
 void syncUtilnodeInfo2raftId(const SNodeInfo* pNodeInfo, SyncGroupId vgId, SRaftId* raftId);
 
+bool syncUtilSameId(const SRaftId* pId1, const SRaftId* pId2);
+
 // ---- SSyncBuffer ----
-#if 0
 void syncUtilbufBuild(SSyncBuffer* syncBuf, size_t len);
 
 void syncUtilbufDestroy(SSyncBuffer* syncBuf);
@@ -48,7 +49,6 @@ void syncUtilbufDestroy(SSyncBuffer* syncBuf);
 void syncUtilbufCopy(const SSyncBuffer* src, SSyncBuffer* dest);
 
 void syncUtilbufCopyDeep(const SSyncBuffer* src, SSyncBuffer* dest);
-#endif
 
 #ifdef __cplusplus
 }
diff --git a/source/libs/sync/inc/syncVoteMgr.h b/source/libs/sync/inc/syncVoteMgr.h
index b841f2e316..e2307e9e66 100644
--- a/source/libs/sync/inc/syncVoteMgr.h
+++ b/source/libs/sync/inc/syncVoteMgr.h
@@ -24,13 +24,36 @@ extern "C" {
 #include <stdio.h>
 #include <stdlib.h>
 #include "syncInt.h"
+#include "syncMessage.h"
+#include "syncUtil.h"
 #include "taosdef.h"
 
 typedef struct SVotesGranted {
+  SyncTerm   term;
+  int32_t    quorum;
+  int32_t    votes;
+  bool       toLeader;
+  SSyncNode *pSyncNode;
 } SVotesGranted;
 
-typedef struct SVotesResponded {
-} SVotesResponded;
+SVotesGranted *voteGrantedCreate(SSyncNode *pSyncNode);
+void           voteGrantedDestroy(SVotesGranted *pVotesGranted);
+bool           voteGrantedMajority(SVotesGranted *pVotesGranted);
+void           voteGrantedVote(SVotesGranted *pVotesGranted, SyncRequestVoteReply *pMsg);
+void           voteGrantedReset(SVotesGranted *pVotesGranted, SyncTerm term);
+
+typedef struct SVotesRespond {
+  SRaftId (*replicas)[TSDB_MAX_REPLICA];
+  bool       isRespond[TSDB_MAX_REPLICA];
+  int32_t    replicaNum;
+  SyncTerm   term;
+  SSyncNode *pSyncNode;
+} SVotesRespond;
+
+SVotesRespond *votesRespondCreate(SSyncNode *pSyncNode);
+bool           votesResponded(SVotesRespond *pVotesRespond, const SRaftId *pRaftId);
+void           votesRespondAdd(SVotesRespond *pVotesRespond, const SyncRequestVoteReply *pMsg);
+void           Reset(SVotesRespond *pVotesRespond, SyncTerm term);
 
 #ifdef __cplusplus
 }
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index 5f3a276a68..6a0663dd57 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -25,7 +25,6 @@ static int32_t tsNodeRefId = -1;
 // ------ local funciton ---------
 static int32_t syncNodeSendMsgById(const SRaftId* destRaftId, SSyncNode* pSyncNode, SRpcMsg* pMsg);
 static int32_t syncNodeSendMsgByInfo(const SNodeInfo* nodeInfo, SSyncNode* pSyncNode, SRpcMsg* pMsg);
-static void    syncNodePingTimerCb(void* param, void* tmrId);
 
 static void syncNodeEqPingTimer(void* param, void* tmrId);
 static void syncNodeEqElectTimer(void* param, void* tmrId);
@@ -358,25 +357,6 @@ static int32_t syncNodeOnTimeoutCb(SSyncNode* ths, SyncTimeout* pMsg) {
   return ret;
 }
 
-static void syncNodePingTimerCb(void* param, void* tmrId) {
-  SSyncNode* pSyncNode = (SSyncNode*)param;
-  if (atomic_load_8(&pSyncNode->pingTimerEnable)) {
-    ++(pSyncNode->pingTimerCounter);
-
-    sTrace(
-        "syncNodePingTimerCb: pSyncNode->pingTimerCounter:%lu, pSyncNode->pingTimerMS:%d, pSyncNode->pPingTimer:%p, "
-        "tmrId:%p ",
-        pSyncNode->pingTimerCounter, pSyncNode->pingTimerMS, pSyncNode->pPingTimer, tmrId);
-
-    syncNodePingAll(pSyncNode);
-
-    taosTmrReset(syncNodePingTimerCb, pSyncNode->pingTimerMS, pSyncNode, &gSyncEnv->pTimerManager,
-                 &pSyncNode->pPingTimer);
-  } else {
-    sTrace("syncNodePingTimerCb: pingTimerEnable:%u ", pSyncNode->pingTimerEnable);
-  }
-}
-
 static void syncNodeEqPingTimer(void* param, void* tmrId) {
   SSyncNode* pSyncNode = (SSyncNode*)param;
   if (atomic_load_8(&pSyncNode->pingTimerEnable)) {
diff --git a/source/libs/sync/src/syncUtil.c b/source/libs/sync/src/syncUtil.c
index b4959a810b..7b4d6ee366 100644
--- a/source/libs/sync/src/syncUtil.c
+++ b/source/libs/sync/src/syncUtil.c
@@ -68,8 +68,12 @@ void syncUtilnodeInfo2raftId(const SNodeInfo* pNodeInfo, SyncGroupId vgId, SRaft
   raftId->vgId = vgId;
 }
 
+bool syncUtilSameId(const SRaftId* pId1, const SRaftId* pId2) {
+  bool ret = pId1->addr == pId2->addr && pId1->vgId == pId2->vgId;
+  return ret;
+}
+
 // ---- SSyncBuffer -----
-#if 0
 void syncUtilbufBuild(SSyncBuffer* syncBuf, size_t len) {
   syncBuf->len = len;
   syncBuf->data = malloc(syncBuf->len);
@@ -87,4 +91,3 @@ void syncUtilbufCopyDeep(const SSyncBuffer* src, SSyncBuffer* dest) {
   dest->data = malloc(dest->len);
   memcpy(dest->data, src->data, dest->len);
 }
-#endif
\ No newline at end of file
diff --git a/source/libs/sync/src/syncVoteMgr.c b/source/libs/sync/src/syncVoteMgr.c
index 02cf4ac033..c9f0ceab57 100644
--- a/source/libs/sync/src/syncVoteMgr.c
+++ b/source/libs/sync/src/syncVoteMgr.c
@@ -14,3 +14,83 @@
  */
 
 #include "syncVoteMgr.h"
+
+SVotesGranted *voteGrantedCreate(SSyncNode *pSyncNode) {
+  SVotesGranted *pVotesGranted = malloc(sizeof(SVotesGranted));
+  assert(pVotesGranted != NULL);
+  memset(pVotesGranted, 0, sizeof(SVotesGranted));
+
+  pVotesGranted->quorum = pSyncNode->quorum;
+  pVotesGranted->term = 0;
+  pVotesGranted->votes = 0;
+  pVotesGranted->toLeader = false;
+  pVotesGranted->pSyncNode = pSyncNode;
+
+  return pVotesGranted;
+}
+
+void voteGrantedDestroy(SVotesGranted *pVotesGranted) {
+  if (pVotesGranted != NULL) {
+    free(pVotesGranted);
+  }
+}
+
+bool voteGrantedMajority(SVotesGranted *pVotesGranted) {
+  bool ret = pVotesGranted->votes >= pVotesGranted->quorum;
+  return ret;
+}
+
+void voteGrantedVote(SVotesGranted *pVotesGranted, SyncRequestVoteReply *pMsg) {
+  assert(pMsg->voteGranted == true);
+  assert(pMsg->term == pVotesGranted->term);
+  pVotesGranted->votes++;
+}
+
+void voteGrantedReset(SVotesGranted *pVotesGranted, SyncTerm term) {
+  pVotesGranted->term = term;
+  pVotesGranted->votes = 0;
+  pVotesGranted->toLeader = false;
+}
+
+SVotesRespond *votesRespondCreate(SSyncNode *pSyncNode) {
+  SVotesRespond *pVotesRespond = malloc(sizeof(SVotesRespond));
+  assert(pVotesRespond != NULL);
+  memset(pVotesRespond, 0, sizeof(SVotesRespond));
+
+  pVotesRespond->replicas = &(pSyncNode->replicasId);
+  pVotesRespond->replicaNum = pSyncNode->replicaNum;
+  pVotesRespond->term = 0;
+  pVotesRespond->pSyncNode = pSyncNode;
+
+  return pVotesRespond;
+}
+
+bool votesResponded(SVotesRespond *pVotesRespond, const SRaftId *pRaftId) {
+  bool ret = false;
+  for (int i = 0; i < pVotesRespond->replicaNum; ++i) {
+    if (syncUtilSameId(&(*pVotesRespond->replicas)[i], pRaftId) && pVotesRespond->isRespond[i]) {
+      ret = true;
+      break;
+    }
+  }
+  return ret;
+}
+
+void votesRespondAdd(SVotesRespond *pVotesRespond, const SyncRequestVoteReply *pMsg) {
+  assert(pVotesRespond->term == pMsg->term);
+  for (int i = 0; i < pVotesRespond->replicaNum; ++i) {
+    if (syncUtilSameId(&(*pVotesRespond->replicas)[i], &pMsg->srcId)) {
+      assert(pVotesRespond->isRespond[i] == false);
+      pVotesRespond->isRespond[i] = true;
+      return;
+    }
+  }
+  assert(0);
+}
+
+void Reset(SVotesRespond *pVotesRespond, SyncTerm term) {
+  pVotesRespond->term = term;
+  for (int i = 0; i < pVotesRespond->replicaNum; ++i) {
+    pVotesRespond->isRespond[i] = false;
+  }
+}
\ No newline at end of file