diff --git a/source/libs/sync/CMakeLists.txt b/source/libs/sync/CMakeLists.txt
index cb38d7e363..37ee5194c8 100644
--- a/source/libs/sync/CMakeLists.txt
+++ b/source/libs/sync/CMakeLists.txt
@@ -13,8 +13,4 @@ target_include_directories(
     sync
     PUBLIC "${CMAKE_SOURCE_DIR}/include/libs/sync"
     PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/inc"
-)
-
-if(${BUILD_TEST})
-    add_subdirectory(test)
-endif(${BUILD_TEST})
+)
\ No newline at end of file
diff --git a/source/libs/sync/inc/syncAppendEntries.h b/source/libs/sync/inc/syncAppendEntries.h
index b7c1c051cc..9ca0de19c5 100644
--- a/source/libs/sync/inc/syncAppendEntries.h
+++ b/source/libs/sync/inc/syncAppendEntries.h
@@ -23,7 +23,6 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "syncInt.h"
 #include "syncMessage.h"
 #include "syncRaft.h"
 #include "taosdef.h"
diff --git a/source/libs/sync/inc/syncAppendEntriesReply.h b/source/libs/sync/inc/syncAppendEntriesReply.h
index 22f8eb464f..8b5cbf1da5 100644
--- a/source/libs/sync/inc/syncAppendEntriesReply.h
+++ b/source/libs/sync/inc/syncAppendEntriesReply.h
@@ -23,7 +23,6 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "syncInt.h"
 #include "syncMessage.h"
 #include "syncRaft.h"
 #include "taosdef.h"
diff --git a/source/libs/sync/inc/syncElection.h b/source/libs/sync/inc/syncElection.h
index 7e9e637854..34dfdb3d09 100644
--- a/source/libs/sync/inc/syncElection.h
+++ b/source/libs/sync/inc/syncElection.h
@@ -23,7 +23,6 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "syncInt.h"
 #include "taosdef.h"
 
 #ifdef __cplusplus
diff --git a/source/libs/sync/inc/syncEnv.h b/source/libs/sync/inc/syncEnv.h
deleted file mode 100644
index f1c4327b69..0000000000
--- a/source/libs/sync/inc/syncEnv.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef _TD_LIBS_SYNC_ENV_H
-#define _TD_LIBS_SYNC_ENV_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "syncInt.h"
-#include "taosdef.h"
-#include "trpc.h"
-
-typedef struct SSyncEnv {
-  void *pTimer;
-  void *pTimerManager;
-} SSyncEnv;
-
-int32_t syncEnvStart();
-
-int32_t syncEnvStop();
-
-static int32_t doSyncEnvStart(SSyncEnv *pSyncEnv);
-
-static int32_t doSyncEnvStop(SSyncEnv *pSyncEnv);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /*_TD_LIBS_SYNC_ENV_H*/
diff --git a/source/libs/sync/inc/syncIO.h b/source/libs/sync/inc/syncIO.h
deleted file mode 100644
index 54a3d2b8c1..0000000000
--- a/source/libs/sync/inc/syncIO.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef _TD_LIBS_IO_H
-#define _TD_LIBS_IO_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "os.h"
-#include "syncInt.h"
-#include "taosdef.h"
-#include "tqueue.h"
-#include "trpc.h"
-
-typedef struct SSyncIO {
-  void *      serverRpc;
-  void *      clientRpc;
-  STaosQueue *pMsgQ;
-  STaosQset * pQset;
-  pthread_t   tid;
-  int8_t      isStart;
-
-  SEpSet epSet;
-
-  void *syncTimer;
-  void *syncTimerManager;
-
-  int32_t (*start)(struct SSyncIO *ths);
-  int32_t (*stop)(struct SSyncIO *ths);
-  int32_t (*ping)(struct SSyncIO *ths);
-  int32_t (*onMessage)(struct SSyncIO *ths, void *pParent, SRpcMsg *pMsg, SEpSet *pEpSet);
-  int32_t (*destroy)(struct SSyncIO *ths);
-
-} SSyncIO;
-
-int32_t syncIOStart();
-int32_t syncIOStop();
-
-SSyncIO *syncIOCreate();
-
-static int32_t doSyncIOStart(SSyncIO *io);
-static int32_t doSyncIOStop(SSyncIO *io);
-static int32_t doSyncIOPing(SSyncIO *io);
-static int32_t doSyncIOOnMessage(struct SSyncIO *io, void *pParent, SRpcMsg *pMsg, SEpSet *pEpSet);
-static int32_t doSyncIODestroy(SSyncIO *io);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /*_TD_LIBS_IO_H*/
diff --git a/source/libs/sync/inc/syncInt.h b/source/libs/sync/inc/syncInt.h
index e03835fc54..551ce83122 100644
--- a/source/libs/sync/inc/syncInt.h
+++ b/source/libs/sync/inc/syncInt.h
@@ -23,11 +23,7 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "sync.h"
 #include "taosdef.h"
-#include "tlog.h"
-
-extern int32_t sDebugFlag;
 
 #define sFatal(...)                                        \
   {                                                        \
@@ -76,12 +72,6 @@ typedef struct SSyncNode {
   int64_t  rid;
 } SSyncNode;
 
-SSyncNode* syncNodeStart(const SSyncInfo* pSyncInfo);
-void       syncNodeStop(SSyncNode* pSyncNode);
-
-// int32_t syncForwardToPeer(int64_t rid, const SRpcMsg* pBuf, bool isWeak);
-int32_t syncNodeForwardToPeer(SSyncNode* pSyncNode, const SSyncBuffer* pBuf, bool isWeak);
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/libs/sync/inc/syncMessage.h b/source/libs/sync/inc/syncMessage.h
index 41a19eb49a..dc74526c73 100644
--- a/source/libs/sync/inc/syncMessage.h
+++ b/source/libs/sync/inc/syncMessage.h
@@ -23,7 +23,7 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "syncInt.h"
+#include "sync.h"
 #include "syncRaftEntry.h"
 #include "taosdef.h"
 
@@ -41,26 +41,28 @@ typedef enum ESyncMessageType {
 typedef struct SyncPing {
   ESyncMessageType   msgType;
   const SSyncBuffer *pData;
-} SyncPing;
+} SyncPing, RaftPing;
+
 
 typedef struct SyncPingReply {
   ESyncMessageType   msgType;
   const SSyncBuffer *pData;
-} SyncPingReply;
+} SyncPingReply, RaftPingReply;
 
 typedef struct SyncClientRequest {
   ESyncMessageType   msgType;
   const SSyncBuffer *pData;
   int64_t            seqNum;
   bool               isWeak;
-} SyncClientRequest;
+} SyncClientRequest, RaftClientRequest;
 
 typedef struct SyncClientRequestReply {
   ESyncMessageType   msgType;
   int32_t            errCode;
   const SSyncBuffer *pErrMsg;
   const SSyncBuffer *pLeaderHint;
-} SyncClientRequestReply;
+} SyncClientRequestReply, RaftClientRequestReply;
+
 
 typedef struct SyncRequestVote {
   ESyncMessageType msgType;
@@ -69,7 +71,7 @@ typedef struct SyncRequestVote {
   SyncGroupId      vgId;
   SyncIndex        lastLogIndex;
   SyncTerm         lastLogTerm;
-} SyncRequestVote;
+} SyncRequestVote, RaftRequestVote;
 
 typedef struct SyncRequestVoteReply {
   ESyncMessageType msgType;
@@ -77,7 +79,7 @@ typedef struct SyncRequestVoteReply {
   SyncNodeId       nodeId;
   SyncGroupId      vgId;
   bool             voteGranted;
-} SyncRequestVoteReply;
+} SyncRequestVoteReply, RaftRequestVoteReply;
 
 typedef struct SyncAppendEntries {
   ESyncMessageType msgType;
@@ -88,7 +90,7 @@ typedef struct SyncAppendEntries {
   int32_t          entryCount;
   SSyncRaftEntry * logEntries;
   SyncIndex        commitIndex;
-} SyncAppendEntries;
+} SyncAppendEntries, RaftAppendEntries;
 
 typedef struct SyncAppendEntriesReply {
   ESyncMessageType msgType;
@@ -96,7 +98,7 @@ typedef struct SyncAppendEntriesReply {
   SyncNodeId       nodeId;
   bool             success;
   SyncIndex        matchIndex;
-} SyncAppendEntriesReply;
+} SyncAppendEntriesReply, RaftAppendEntriesReply;
 
 #ifdef __cplusplus
 }
diff --git a/source/libs/sync/inc/syncRaft.h b/source/libs/sync/inc/syncRaft.h
index 5852c0ec30..6a3140d930 100644
--- a/source/libs/sync/inc/syncRaft.h
+++ b/source/libs/sync/inc/syncRaft.h
@@ -23,24 +23,59 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "syncInt.h"
+#include "sync.h"
 #include "syncMessage.h"
 #include "taosdef.h"
 
 typedef struct SRaftId {
-  SyncNodeId  addr;
+  SyncNodeId  nodeId;
   SyncGroupId vgId;
 } SRaftId;
 
 typedef struct SRaft {
   SRaftId id;
+  void*   data;
 
-  SSyncLogStore* logStore;
-  SStateMgr*     stateManager;
-  SSyncFSM*      syncFsm;
+  int32_t (*FpPing)(struct SRaft* ths, const RaftPing* pMsg);
+
+  int32_t (*FpOnPing)(struct SRaft* ths, RaftPing* pMsg);
+
+  int32_t (*FpOnPingReply)(struct SRaft* ths, RaftPingReply* pMsg);
+
+  int32_t (*FpRequestVote)(struct SRaft* ths, const RaftRequestVote* pMsg);
+
+  int32_t (*FpOnRequestVote)(struct SRaft* ths, RaftRequestVote* pMsg);
+
+  int32_t (*FpOnRequestVoteReply)(struct SRaft* ths, RaftRequestVoteReply* pMsg);
+
+  int32_t (*FpAppendEntries)(struct SRaft* ths, const RaftAppendEntries* pMsg);
+
+  int32_t (*FpOnAppendEntries)(struct SRaft* ths, RaftAppendEntries* pMsg);
+
+  int32_t (*FpOnAppendEntriesReply)(struct SRaft* ths, RaftAppendEntriesReply* pMsg);
 
 } SRaft;
 
+SRaft* raftCreate(SRaftId raftId, void* data);
+
+static int32_t doRaftPing(struct SRaft* ths, const RaftPing* pMsg);
+
+static int32_t onRaftPing(struct SRaft* ths, RaftPing* pMsg);
+
+static int32_t onRaftPingReply(struct SRaft* ths, RaftPingReply* pMsg);
+
+static int32_t doRaftRequestVote(struct SRaft* ths, const RaftRequestVote* pMsg);
+
+static int32_t onRaftRequestVote(struct SRaft* ths, RaftRequestVote* pMsg);
+
+static int32_t onRaftRequestVoteReply(struct SRaft* ths, RaftRequestVoteReply* pMsg);
+
+static int32_t doRaftAppendEntries(struct SRaft* ths, const RaftAppendEntries* pMsg);
+
+static int32_t onRaftAppendEntries(struct SRaft* ths, RaftAppendEntries* pMsg);
+
+static int32_t onRaftAppendEntriesReply(struct SRaft* ths, RaftAppendEntriesReply* pMsg);
+
 int32_t raftPropose(SRaft* pRaft, const SSyncBuffer* pBuf, bool isWeak);
 
 static int raftSendMsg(SRaftId destRaftId, const void* pMsg, const SRaft* pRaft);
diff --git a/source/libs/sync/inc/syncRaftEntry.h b/source/libs/sync/inc/syncRaftEntry.h
index 516bef4d48..adc82f2c5d 100644
--- a/source/libs/sync/inc/syncRaftEntry.h
+++ b/source/libs/sync/inc/syncRaftEntry.h
@@ -13,8 +13,8 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef _TD_LIBS_SYNC_RAFT_ENTRY_H
-#define _TD_LIBS_SYNC_RAFT_ENTRY_H
+#ifndef _TD_LIBS_TPL_H
+#define _TD_LIBS_TPL_H
 
 #ifdef __cplusplus
 extern "C" {
@@ -23,7 +23,7 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "syncInt.h"
+#include "sync.h"
 #include "taosdef.h"
 
 typedef struct SSyncRaftEntry {
@@ -37,4 +37,4 @@ typedef struct SSyncRaftEntry {
 }
 #endif
 
-#endif /*_TD_LIBS_SYNC_RAFT_ENTRY_H*/
+#endif /*_TD_LIBS_TPL_H*/
diff --git a/source/libs/sync/inc/syncRaftLog.h b/source/libs/sync/inc/syncRaftLog.h
index ee971062cf..8c4b5116ea 100644
--- a/source/libs/sync/inc/syncRaftLog.h
+++ b/source/libs/sync/inc/syncRaftLog.h
@@ -23,7 +23,7 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "syncInt.h"
+#include "sync.h"
 #include "taosdef.h"
 
 int32_t raftLogAppendEntry(struct SSyncLogStore* pLogStore, SSyncBuffer* pBuf);
diff --git a/source/libs/sync/inc/syncRaftStore.h b/source/libs/sync/inc/syncRaftStore.h
index bdaeb81aee..4cb852f34a 100644
--- a/source/libs/sync/inc/syncRaftStore.h
+++ b/source/libs/sync/inc/syncRaftStore.h
@@ -23,36 +23,17 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "cJSON.h"
-#include "syncInt.h"
+#include "sync.h"
 #include "syncRaft.h"
 #include "taosdef.h"
 
-#define RAFT_STORE_BLOCK_SIZE 512
-#define RAFT_STORE_PATH_LEN 128
+int32_t currentTerm(SyncTerm *pCurrentTerm);
 
-typedef struct SRaftStore {
-  SyncTerm currentTerm;
-  SRaftId  voteFor;
-  FileFd   fd;
-  char     path[RAFT_STORE_PATH_LEN];
-} SRaftStore;
+int32_t persistCurrentTerm(SyncTerm currentTerm);
 
-SRaftStore *raftStoreOpen(const char *path);
+int32_t voteFor(SRaftId *pRaftId);
 
-static int32_t raftStoreInit(SRaftStore *pRaftStore);
-
-int32_t raftStoreClose(SRaftStore *pRaftStore);
-
-int32_t raftStorePersist(SRaftStore *pRaftStore);
-
-static bool raftStoreFileExist(char *path);
-
-int32_t raftStoreSerialize(SRaftStore *pRaftStore, char *buf, size_t len);
-
-int32_t raftStoreDeserialize(SRaftStore *pRaftStore, char *buf, size_t len);
-
-void raftStorePrint(SRaftStore *pRaftStore);
+int32_t persistVoteFor(SRaftId *pRaftId);
 
 #ifdef __cplusplus
 }
diff --git a/source/libs/sync/inc/syncReplication.h b/source/libs/sync/inc/syncReplication.h
index 7f97ae9e49..40c5ff790b 100644
--- a/source/libs/sync/inc/syncReplication.h
+++ b/source/libs/sync/inc/syncReplication.h
@@ -23,7 +23,6 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "syncInt.h"
 #include "taosdef.h"
 
 #ifdef __cplusplus
diff --git a/source/libs/sync/inc/syncRequestVote.h b/source/libs/sync/inc/syncRequestVote.h
index c2eca55151..3ff96bbe8f 100644
--- a/source/libs/sync/inc/syncRequestVote.h
+++ b/source/libs/sync/inc/syncRequestVote.h
@@ -23,7 +23,6 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "syncInt.h"
 #include "syncMessage.h"
 #include "syncRaft.h"
 #include "taosdef.h"
diff --git a/source/libs/sync/inc/syncRequestVoteReply.h b/source/libs/sync/inc/syncRequestVoteReply.h
index 38068dd0e2..033ac89bc2 100644
--- a/source/libs/sync/inc/syncRequestVoteReply.h
+++ b/source/libs/sync/inc/syncRequestVoteReply.h
@@ -23,7 +23,6 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "syncInt.h"
 #include "syncMessage.h"
 #include "syncRaft.h"
 #include "taosdef.h"
diff --git a/source/libs/sync/inc/syncSnapshot.h b/source/libs/sync/inc/syncSnapshot.h
index 89fcb230fb..3b6121578a 100644
--- a/source/libs/sync/inc/syncSnapshot.h
+++ b/source/libs/sync/inc/syncSnapshot.h
@@ -23,7 +23,7 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "syncInt.h"
+#include "sync.h"
 #include "syncRaft.h"
 #include "taosdef.h"
 
diff --git a/source/libs/sync/inc/syncTimeout.h b/source/libs/sync/inc/syncTimeout.h
index d9d6a17939..8159d2566c 100644
--- a/source/libs/sync/inc/syncTimeout.h
+++ b/source/libs/sync/inc/syncTimeout.h
@@ -23,7 +23,6 @@ extern "C" {
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "syncInt.h"
 #include "syncMessage.h"
 #include "syncRaft.h"
 #include "taosdef.h"
diff --git a/source/libs/sync/inc/syncVoteMgr.h b/source/libs/sync/inc/syncVoteMgr.h
deleted file mode 100644
index cfcf58bee2..0000000000
--- a/source/libs/sync/inc/syncVoteMgr.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef _TD_LIBS_SYNC_VOTG_MGR_H
-#define _TD_LIBS_SYNC_VOTG_MGR_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "syncInt.h"
-#include "taosdef.h"
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /*_TD_LIBS_SYNC_VOTG_MGR_H*/
diff --git a/source/libs/sync/src/syncAppendEntries.c b/source/libs/sync/src/syncAppendEntries.c
index 2b9c59ec92..65654564ab 100644
--- a/source/libs/sync/src/syncAppendEntries.c
+++ b/source/libs/sync/src/syncAppendEntries.c
@@ -14,6 +14,7 @@
  */
 
 #include "syncAppendEntries.h"
+#include "sync.h"
 
 void appendEntries(SRaft *pRaft, const SyncAppendEntries *pMsg) {
   // TLA+ Spec
diff --git a/source/libs/sync/src/syncAppendEntriesReply.c b/source/libs/sync/src/syncAppendEntriesReply.c
index 05734237b9..20235ef720 100644
--- a/source/libs/sync/src/syncAppendEntriesReply.c
+++ b/source/libs/sync/src/syncAppendEntriesReply.c
@@ -14,6 +14,7 @@
  */
 
 #include "syncAppendEntriesReply.h"
+#include "sync.h"
 
 void onAppendEntriesReply(SRaft *pRaft, const SyncAppendEntriesReply *pMsg) {
   // TLA+ Spec
diff --git a/source/libs/sync/src/syncElection.c b/source/libs/sync/src/syncElection.c
index 329105e2a1..738fc4c5e1 100644
--- a/source/libs/sync/src/syncElection.c
+++ b/source/libs/sync/src/syncElection.c
@@ -13,4 +13,4 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "syncElection.h"
+#include "sync.h"
diff --git a/source/libs/sync/src/syncEnv.c b/source/libs/sync/src/syncEnv.c
deleted file mode 100644
index e71cf55cb1..0000000000
--- a/source/libs/sync/src/syncEnv.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "syncEnv.h"
-#include <assert.h>
-
-SSyncEnv *gSyncEnv = NULL;
-
-int32_t syncEnvStart() {
-  int32_t ret;
-  gSyncEnv = (SSyncEnv *)malloc(sizeof(SSyncEnv));
-  assert(gSyncEnv != NULL);
-  ret = doSyncEnvStart(gSyncEnv);
-  return ret;
-}
-
-int32_t syncEnvStop() {
-  int32_t ret = doSyncEnvStop(gSyncEnv);
-  return ret;
-}
-
-static int32_t doSyncEnvStart(SSyncEnv *pSyncEnv) { return 0; }
-
-static int32_t doSyncEnvStop(SSyncEnv *pSyncEnv) { return 0; }
diff --git a/source/libs/sync/src/syncIO.c b/source/libs/sync/src/syncIO.c
deleted file mode 100644
index 0e32d9ac50..0000000000
--- a/source/libs/sync/src/syncIO.c
+++ /dev/null
@@ -1,245 +0,0 @@
-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "syncIO.h"
-#include <tep.h>
-#include "syncOnMessage.h"
-#include "tglobal.h"
-#include "ttimer.h"
-#include "tutil.h"
-
-int32_t syncIOStart() { return 0; }
-
-int32_t syncIOStop() { return 0; }
-
-static void syncTick(void *param, void *tmrId) {
-  SSyncIO *io = (SSyncIO *)param;
-  sDebug("syncTick ... ");
-
-  SRpcMsg rpcMsg;
-  rpcMsg.pCont = rpcMallocCont(10);
-  snprintf(rpcMsg.pCont, 10, "TICK");
-  rpcMsg.contLen = 10;
-  rpcMsg.handle = NULL;
-  rpcMsg.msgType = 2;
-
-  SRpcMsg *pTemp;
-
-  pTemp = taosAllocateQitem(sizeof(SRpcMsg));
-  memcpy(pTemp, &rpcMsg, sizeof(SRpcMsg));
-
-  taosWriteQitem(io->pMsgQ, pTemp);
-
-  io->syncTimer = taosTmrStart(syncTick, 1000, io, io->syncTimerManager);
-}
-
-void *syncConsumer(void *param) {
-  SSyncIO *io = param;
-
-  STaosQall *qall;
-  SRpcMsg *  pRpcMsg, rpcMsg;
-  int        type;
-
-  qall = taosAllocateQall();
-
-  while (1) {
-    int numOfMsgs = taosReadAllQitemsFromQset(io->pQset, qall, NULL, NULL);
-    sDebug("%d sync-io msgs are received", numOfMsgs);
-    if (numOfMsgs <= 0) break;
-
-    for (int i = 0; i < numOfMsgs; ++i) {
-      taosGetQitem(qall, (void **)&pRpcMsg);
-      sDebug("sync-io recv type:%d msg:%s", pRpcMsg->msgType, (char *)(pRpcMsg->pCont));
-    }
-
-    taosResetQitems(qall);
-    for (int i = 0; i < numOfMsgs; ++i) {
-      taosGetQitem(qall, (void **)&pRpcMsg);
-      rpcFreeCont(pRpcMsg->pCont);
-
-      if (pRpcMsg->handle != NULL) {
-        int msgSize = 128;
-        memset(&rpcMsg, 0, sizeof(rpcMsg));
-        rpcMsg.pCont = rpcMallocCont(msgSize);
-        rpcMsg.contLen = msgSize;
-        rpcMsg.handle = pRpcMsg->handle;
-        rpcMsg.code = 0;
-        rpcSendResponse(&rpcMsg);
-      }
-
-      taosFreeQitem(pRpcMsg);
-    }
-  }
-
-  taosFreeQall(qall);
-  return NULL;
-}
-
-static int retrieveAuthInfo(void *parent, char *meterId, char *spi, char *encrypt, char *secret, char *ckey) {
-  // app shall retrieve the auth info based on meterID from DB or a data file
-  // demo code here only for simple demo
-  int ret = 0;
-  return ret;
-}
-
-static void processResponse(void *pParent, SRpcMsg *pMsg, SEpSet *pEpSet) {
-  sDebug("processResponse ... ");
-  rpcFreeCont(pMsg->pCont);
-}
-
-static void processRequestMsg(void *pParent, SRpcMsg *pMsg, SEpSet *pEpSet) {
-  SSyncIO *io = pParent;
-  SRpcMsg *pTemp;
-
-  pTemp = taosAllocateQitem(sizeof(SRpcMsg));
-  memcpy(pTemp, pMsg, sizeof(SRpcMsg));
-
-  sDebug("request is received, type:%d, contLen:%d, item:%p", pMsg->msgType, pMsg->contLen, pTemp);
-  taosWriteQitem(io->pMsgQ, pTemp);
-}
-
-SSyncIO *syncIOCreate() {
-  SSyncIO *io = (SSyncIO *)malloc(sizeof(SSyncIO));
-  memset(io, 0, sizeof(*io));
-
-  io->pMsgQ = taosOpenQueue();
-  io->pQset = taosOpenQset();
-  taosAddIntoQset(io->pQset, io->pMsgQ, NULL);
-
-  io->start = doSyncIOStart;
-  io->stop = doSyncIOStop;
-  io->ping = doSyncIOPing;
-  io->onMessage = doSyncIOOnMessage;
-  io->destroy = doSyncIODestroy;
-
-  return io;
-}
-
-static int32_t doSyncIOStart(SSyncIO *io) {
-  taosBlockSIGPIPE();
-
-  tsRpcForceTcp = 1;
-
-  // cient rpc init
-  {
-    SRpcInit rpcInit;
-    memset(&rpcInit, 0, sizeof(rpcInit));
-    rpcInit.localPort = 0;
-    rpcInit.label = "SYNC-IO-CLIENT";
-    rpcInit.numOfThreads = 1;
-    rpcInit.cfp = processResponse;
-    rpcInit.sessions = 100;
-    rpcInit.idleTime = 100;
-    rpcInit.user = "sync-io";
-    rpcInit.secret = "sync-io";
-    rpcInit.ckey = "key";
-    rpcInit.spi = 0;
-    rpcInit.connType = TAOS_CONN_CLIENT;
-
-    io->clientRpc = rpcOpen(&rpcInit);
-    if (io->clientRpc == NULL) {
-      sError("failed to initialize RPC");
-      return -1;
-    }
-  }
-
-  // server rpc init
-  {
-    SRpcInit rpcInit;
-    memset(&rpcInit, 0, sizeof(rpcInit));
-    rpcInit.localPort = 38000;
-    rpcInit.label = "SYNC-IO-SERVER";
-    rpcInit.numOfThreads = 1;
-    rpcInit.cfp = processRequestMsg;
-    rpcInit.sessions = 1000;
-    rpcInit.idleTime = 2 * 1500;
-    rpcInit.afp = retrieveAuthInfo;
-    rpcInit.parent = io;
-    rpcInit.connType = TAOS_CONN_SERVER;
-
-    void *pRpc = rpcOpen(&rpcInit);
-    if (pRpc == NULL) {
-      sError("failed to start RPC server");
-      return -1;
-    }
-  }
-
-  io->epSet.inUse = 0;
-  addEpIntoEpSet(&io->epSet, "127.0.0.1", 38000);
-
-  // start consumer thread
-  {
-    if (pthread_create(&io->tid, NULL, syncConsumer, io) != 0) {
-      sError("failed to create sync consumer thread since %s", strerror(errno));
-      terrno = TAOS_SYSTEM_ERROR(errno);
-      return -1;
-    }
-  }
-
-  // start tmr thread
-  io->syncTimerManager = taosTmrInit(1000, 50, 10000, "SYNC");
-  io->syncTimer = taosTmrStart(syncTick, 1000, io, io->syncTimerManager);
-
-  return 0;
-}
-
-static int32_t doSyncIOStop(SSyncIO *io) {
-  atomic_store_8(&io->isStart, 0);
-  pthread_join(io->tid, NULL);
-  return 0;
-}
-
-static int32_t doSyncIOPing(SSyncIO *io) {
-  SRpcMsg rpcMsg, rspMsg;
-
-  rpcMsg.pCont = rpcMallocCont(10);
-  snprintf(rpcMsg.pCont, 10, "ping");
-  rpcMsg.contLen = 10;
-  rpcMsg.handle = NULL;
-  rpcMsg.msgType = 1;
-
-  rpcSendRequest(io->clientRpc, &io->epSet, &rpcMsg, NULL);
-
-  return 0;
-}
-
-static int32_t doSyncIOOnMessage(struct SSyncIO *io, void *pParent, SRpcMsg *pMsg, SEpSet *pEpSet) { return 0; }
-
-static int32_t doSyncIODestroy(SSyncIO *io) {
-  int8_t start = atomic_load_8(&io->isStart);
-  assert(start == 0);
-
-  if (io->serverRpc != NULL) {
-    free(io->serverRpc);
-    io->serverRpc = NULL;
-  }
-
-  if (io->clientRpc != NULL) {
-    free(io->clientRpc);
-    io->clientRpc = NULL;
-  }
-
-  if (io->pMsgQ != NULL) {
-    free(io->pMsgQ);
-    io->pMsgQ = NULL;
-  }
-
-  if (io->pQset != NULL) {
-    free(io->pQset);
-    io->pQset = NULL;
-  }
-
-  return 0;
-}
\ No newline at end of file
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index 0e7d83d39a..fbb969eb1c 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -14,13 +14,10 @@
  */
 
 #include <stdint.h>
-#include "syncEnv.h"
+#include "sync.h"
 #include "syncInt.h"
 
-int32_t syncInit() {
-  int32_t ret = syncEnvStart();
-  return ret;
-}
+int32_t syncInit() { return 0; }
 
 void syncCleanUp() {}
 
@@ -34,9 +31,4 @@ int32_t syncForwardToPeer(int64_t rid, const SSyncBuffer* pBuf, bool isWeak) { r
 
 ESyncState syncGetMyRole(int64_t rid) { return TAOS_SYNC_STATE_LEADER; }
 
-void syncGetNodesRole(int64_t rid, SNodesRole* pNodeRole) {}
-
-SSyncNode* syncNodeStart(const SSyncInfo* pSyncInfo) { return NULL; }
-void       syncNodeStop(SSyncNode* pSyncNode) {}
-
-int32_t syncNodeForwardToPeer(SSyncNode* pSyncNode, const SSyncBuffer* pBuf, bool isWeak) { return 0; }
\ No newline at end of file
+void syncGetNodesRole(int64_t rid, SNodesRole* pNodeRole) {}
\ No newline at end of file
diff --git a/source/libs/sync/src/syncMessage.c b/source/libs/sync/src/syncMessage.c
index 8937303725..dcfc940f76 100644
--- a/source/libs/sync/src/syncMessage.c
+++ b/source/libs/sync/src/syncMessage.c
@@ -14,6 +14,7 @@
  */
 
 #include "syncMessage.h"
+#include "sync.h"
 #include "syncRaft.h"
 
 void onMessage(SRaft *pRaft, void *pMsg) {}
\ No newline at end of file
diff --git a/source/libs/sync/src/syncOnMessage.c b/source/libs/sync/src/syncOnMessage.c
index 19a97ee156..738fc4c5e1 100644
--- a/source/libs/sync/src/syncOnMessage.c
+++ b/source/libs/sync/src/syncOnMessage.c
@@ -13,4 +13,4 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "syncOnMessage.h"
+#include "sync.h"
diff --git a/source/libs/sync/src/syncRaft.c b/source/libs/sync/src/syncRaft.c
index f0a29917e0..1a01aefb0b 100644
--- a/source/libs/sync/src/syncRaft.c
+++ b/source/libs/sync/src/syncRaft.c
@@ -14,6 +14,47 @@
  */
 
 #include "syncRaft.h"
+#include "sync.h"
+
+SRaft* raftCreate(SRaftId raftId, void* data) {
+  SRaft* pRaft = (SRaft*)malloc(sizeof(SRaft));
+  assert(pRaft != NULL);
+
+  pRaft->id = raftId;
+  pRaft->data = data;
+
+  pRaft->FpPing = doRaftPing;
+  pRaft->FpOnPing = onRaftPing;
+  pRaft->FpOnPingReply = onRaftPingReply;
+
+  pRaft->FpRequestVote = doRaftRequestVote;
+  pRaft->FpOnRequestVote = onRaftRequestVote;
+  pRaft->FpOnRequestVoteReply = onRaftRequestVoteReply;
+
+  pRaft->FpAppendEntries = doRaftAppendEntries;
+  pRaft->FpOnAppendEntries = onRaftAppendEntries;
+  pRaft->FpOnAppendEntriesReply = onRaftAppendEntriesReply;
+
+  return pRaft;
+}
+
+static int32_t doRaftPing(struct SRaft* ths, const RaftPing* pMsg) { return 0; }
+
+static int32_t onRaftPing(struct SRaft* ths, RaftPing* pMsg) { return 0; }
+
+static int32_t onRaftPingReply(struct SRaft* ths, RaftPingReply* pMsg) { return 0; }
+
+static int32_t doRaftRequestVote(struct SRaft* ths, const RaftRequestVote* pMsg) { return 0; }
+
+static int32_t onRaftRequestVote(struct SRaft* ths, RaftRequestVote* pMsg) { return 0; }
+
+static int32_t onRaftRequestVoteReply(struct SRaft* ths, RaftRequestVoteReply* pMsg) { return 0; }
+
+static int32_t doRaftAppendEntries(struct SRaft* ths, const RaftAppendEntries* pMsg) { return 0; }
+
+static int32_t onRaftAppendEntries(struct SRaft* ths, RaftAppendEntries* pMsg) { return 0; }
+
+static int32_t onRaftAppendEntriesReply(struct SRaft* ths, RaftAppendEntriesReply* pMsg) { return 0; }
 
 int32_t raftPropose(SRaft* pRaft, const SSyncBuffer* pBuf, bool isWeak) { return 0; }
 
diff --git a/source/libs/sync/src/syncRaftEntry.c b/source/libs/sync/src/syncRaftEntry.c
index e525d3c7c2..738fc4c5e1 100644
--- a/source/libs/sync/src/syncRaftEntry.c
+++ b/source/libs/sync/src/syncRaftEntry.c
@@ -13,4 +13,4 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "syncRaftEntry.h"
+#include "sync.h"
diff --git a/source/libs/sync/src/syncRaftLog.c b/source/libs/sync/src/syncRaftLog.c
index 37bb3ce48c..4a5fc201b0 100644
--- a/source/libs/sync/src/syncRaftLog.c
+++ b/source/libs/sync/src/syncRaftLog.c
@@ -14,6 +14,7 @@
  */
 
 #include "syncRaftLog.h"
+#include "sync.h"
 
 int32_t raftLogAppendEntry(struct SSyncLogStore* pLogStore, SSyncBuffer* pBuf) { return 0; }
 
diff --git a/source/libs/sync/src/syncRaftStore.c b/source/libs/sync/src/syncRaftStore.c
index 4391f5d25c..d45e53132c 100644
--- a/source/libs/sync/src/syncRaftStore.c
+++ b/source/libs/sync/src/syncRaftStore.c
@@ -14,118 +14,12 @@
  */
 
 #include "syncRaftStore.h"
-#include "cJSON.h"
+#include "sync.h"
 
-SRaftStore *raftStoreOpen(const char *path) {
-  int32_t ret;
+int32_t currentTerm(SyncTerm *pCurrentTerm) { return 0; }
 
-  SRaftStore *pRaftStore = malloc(sizeof(SRaftStore));
-  if (pRaftStore == NULL) {
-    sError("raftStoreOpen malloc error");
-    return NULL;
-  }
-  memset(pRaftStore, 0, sizeof(*pRaftStore));
-  snprintf(pRaftStore->path, sizeof(pRaftStore->path), "%s", path);
+int32_t persistCurrentTerm(SyncTerm currentTerm) { return 0; }
 
-  char storeBuf[RAFT_STORE_BLOCK_SIZE];
-  memset(storeBuf, 0, sizeof(storeBuf));
+int32_t voteFor(SRaftId *pRaftId) { return 0; }
 
-  if (!raftStoreFileExist(pRaftStore->path)) {
-    ret = raftStoreInit(pRaftStore);
-    assert(ret == 0);
-  }
-
-  pRaftStore->fd = taosOpenFileReadWrite(pRaftStore->path);
-  if (pRaftStore->fd < 0) {
-    return NULL;
-  }
-
-  int len = taosReadFile(pRaftStore->fd, storeBuf, sizeof(storeBuf));
-  assert(len == RAFT_STORE_BLOCK_SIZE);
-
-  ret = raftStoreDeserialize(pRaftStore, storeBuf, len);
-  assert(ret == 0);
-
-  return pRaftStore;
-}
-
-static int32_t raftStoreInit(SRaftStore *pRaftStore) {
-  pRaftStore->fd = taosOpenFileCreateWrite(pRaftStore->path);
-  if (pRaftStore->fd < 0) {
-    return -1;
-  }
-
-  pRaftStore->currentTerm = 0;
-  pRaftStore->voteFor.addr = 0;
-  pRaftStore->voteFor.vgId = 0;
-
-  int32_t ret = raftStorePersist(pRaftStore);
-  assert(ret == 0);
-
-  taosCloseFile(pRaftStore->fd);
-  return 0;
-}
-
-int32_t raftStoreClose(SRaftStore *pRaftStore) {
-  taosCloseFile(pRaftStore->fd);
-  free(pRaftStore);
-  return 0;
-}
-
-int32_t raftStorePersist(SRaftStore *pRaftStore) {
-  int32_t ret;
-  char    storeBuf[RAFT_STORE_BLOCK_SIZE];
-
-  ret = raftStoreSerialize(pRaftStore, storeBuf, sizeof(storeBuf));
-  assert(ret == 0);
-
-  taosLSeekFile(pRaftStore->fd, 0, SEEK_SET);
-
-  ret = taosWriteFile(pRaftStore->fd, storeBuf, sizeof(storeBuf));
-  assert(ret == RAFT_STORE_BLOCK_SIZE);
-
-  fsync(pRaftStore->fd);
-  return 0;
-}
-
-static bool raftStoreFileExist(char *path) { return taosStatFile(path, NULL, NULL) >= 0; }
-
-int32_t raftStoreSerialize(SRaftStore *pRaftStore, char *buf, size_t len) {
-  cJSON *pRoot = cJSON_CreateObject();
-  cJSON_AddNumberToObject(pRoot, "current_term", pRaftStore->currentTerm);
-  cJSON_AddNumberToObject(pRoot, "vote_for_addr", pRaftStore->voteFor.addr);
-  cJSON_AddNumberToObject(pRoot, "vote_for_vgid", pRaftStore->voteFor.vgId);
-
-  char *serialized = cJSON_Print(pRoot);
-  int   len2 = strlen(serialized);
-  assert(len2 < len);
-  memset(buf, 0, len);
-  snprintf(buf, len, "%s", serialized);
-  free(serialized);
-
-  cJSON_Delete(pRoot);
-  return 0;
-}
-
-int32_t raftStoreDeserialize(SRaftStore *pRaftStore, char *buf, size_t len) {
-  assert(len > 0 && len <= RAFT_STORE_BLOCK_SIZE);
-  cJSON *pRoot = cJSON_Parse(buf);
-
-  cJSON *pCurrentTerm = cJSON_GetObjectItem(pRoot, "current_term");
-  pRaftStore->currentTerm = pCurrentTerm->valueint;
-
-  cJSON *pVoteForAddr = cJSON_GetObjectItem(pRoot, "vote_for_addr");
-  pRaftStore->voteFor.addr = pVoteForAddr->valueint;
-
-  cJSON *pVoteForVgid = cJSON_GetObjectItem(pRoot, "vote_for_vgid");
-  pRaftStore->voteFor.vgId = pVoteForVgid->valueint;
-
-  cJSON_Delete(pRoot);
-  return 0;
-}
-
-void raftStorePrint(SRaftStore *pRaftStore) {
-  char storeBuf[RAFT_STORE_BLOCK_SIZE];
-  raftStoreSerialize(pRaftStore, storeBuf, sizeof(storeBuf));
-  printf("%s\n", storeBuf);
-}
+int32_t persistVoteFor(SRaftId *pRaftId) { return 0; }
\ No newline at end of file
diff --git a/source/libs/sync/src/syncReplication.c b/source/libs/sync/src/syncReplication.c
index 4cea7c150e..738fc4c5e1 100644
--- a/source/libs/sync/src/syncReplication.c
+++ b/source/libs/sync/src/syncReplication.c
@@ -13,4 +13,4 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "syncReplication.h"
+#include "sync.h"
diff --git a/source/libs/sync/src/syncRequestVote.c b/source/libs/sync/src/syncRequestVote.c
index 7aee47b8e4..88056c95ff 100644
--- a/source/libs/sync/src/syncRequestVote.c
+++ b/source/libs/sync/src/syncRequestVote.c
@@ -14,6 +14,7 @@
  */
 
 #include "syncRequestVote.h"
+#include "sync.h"
 
 void requestVote(SRaft *pRaft, const SyncRequestVote *pMsg) {
   // TLA+ Spec
diff --git a/source/libs/sync/src/syncRequestVoteReply.c b/source/libs/sync/src/syncRequestVoteReply.c
index a9c88a7975..4ca1b1343f 100644
--- a/source/libs/sync/src/syncRequestVoteReply.c
+++ b/source/libs/sync/src/syncRequestVoteReply.c
@@ -14,6 +14,7 @@
  */
 
 #include "syncRequestVoteReply.h"
+#include "sync.h"
 
 void onRequestVoteReply(SRaft *pRaft, const SyncRequestVoteReply *pMsg) {
   // TLA+ Spec
diff --git a/source/libs/sync/src/syncSnapshot.c b/source/libs/sync/src/syncSnapshot.c
index da194780ff..8a27f097d1 100644
--- a/source/libs/sync/src/syncSnapshot.c
+++ b/source/libs/sync/src/syncSnapshot.c
@@ -14,6 +14,7 @@
  */
 
 #include "syncSnapshot.h"
+#include "sync.h"
 #include "syncRaft.h"
 
 int32_t takeSnapshot(SSyncFSM *pFsm, SSnapshot *pSnapshot) { return 0; }
diff --git a/source/libs/sync/src/syncTimeout.c b/source/libs/sync/src/syncTimeout.c
index e27df55d07..206dd70046 100644
--- a/source/libs/sync/src/syncTimeout.c
+++ b/source/libs/sync/src/syncTimeout.c
@@ -14,5 +14,6 @@
  */
 
 #include "syncTimeout.h"
+#include "sync.h"
 
 void onTimeout(SRaft *pRaft, void *pMsg) {}
\ No newline at end of file
diff --git a/source/libs/sync/src/syncVoteMgr.c b/source/libs/sync/src/syncVoteMgr.c
deleted file mode 100644
index 02cf4ac033..0000000000
--- a/source/libs/sync/src/syncVoteMgr.c
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "syncVoteMgr.h"
diff --git a/source/libs/sync/test/CMakeLists.txt b/source/libs/sync/test/CMakeLists.txt
deleted file mode 100644
index e655ac01be..0000000000
--- a/source/libs/sync/test/CMakeLists.txt
+++ /dev/null
@@ -1,55 +0,0 @@
-add_executable(syncTest "")
-add_executable(syncEnvTest "")
-add_executable(syncPingTest "")
-
-
-target_sources(syncTest
-    PRIVATE
-    "syncTest.cpp"
-)
-target_sources(syncEnvTest
-    PRIVATE
-    "syncEnvTest.cpp"
-)
-target_sources(syncPingTest
-    PRIVATE
-    "syncPingTest.cpp"
-)
-
-
-target_include_directories(syncTest
-    PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
-    "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
-)
-target_include_directories(syncEnvTest
-    PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
-    "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
-)
-target_include_directories(syncPingTest
-    PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
-    "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
-)
-
-
-target_link_libraries(syncTest
-    sync
-    gtest_main
-)
-target_link_libraries(syncEnvTest
-    sync
-    gtest_main
-)
-target_link_libraries(syncPingTest
-    sync
-    gtest_main
-)
-
-
-enable_testing()
-add_test(
-    NAME sync_test
-    COMMAND syncTest
-)
diff --git a/source/libs/sync/test/syncEnvTest.cpp b/source/libs/sync/test/syncEnvTest.cpp
deleted file mode 100644
index 31dad593e6..0000000000
--- a/source/libs/sync/test/syncEnvTest.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-#include "syncEnv.h"
-#include <stdio.h>
-#include "syncIO.h"
-#include "syncInt.h"
-#include "syncRaftStore.h"
-
-void logTest() {
-  sTrace("--- sync log test: trace");
-  sDebug("--- sync log test: debug");
-  sInfo("--- sync log test: info");
-  sWarn("--- sync log test: warn");
-  sError("--- sync log test: error");
-  sFatal("--- sync log test: fatal");
-}
-
-void doSync() {
-  SSyncInfo syncInfo;
-  syncInfo.vgId = 1;
-
-  SSyncCfg* pCfg = &syncInfo.syncCfg;
-  pCfg->replicaNum = 3;
-
-  pCfg->nodeInfo[0].nodePort = 7010;
-  taosGetFqdn(pCfg->nodeInfo[0].nodeFqdn);
-
-  pCfg->nodeInfo[1].nodePort = 7110;
-  taosGetFqdn(pCfg->nodeInfo[1].nodeFqdn);
-
-  pCfg->nodeInfo[2].nodePort = 7210;
-  taosGetFqdn(pCfg->nodeInfo[2].nodeFqdn);
-
-  SSyncNode* pSyncNode = syncNodeStart(&syncInfo);
-  assert(pSyncNode != NULL);
-}
-
-int main() {
-  taosInitLog((char*)"syncEnvTest.log", 100000, 10);
-  tsAsyncLog = 0;
-  sDebugFlag = 143 + 64;
-
-  logTest();
-
-  int32_t ret = syncIOStart();
-  assert(ret == 0);
-
-  ret = syncEnvStart();
-  assert(ret == 0);
-
-  doSync();
-
-  while (1) {
-    taosMsleep(1000);
-  }
-
-  return 0;
-}
diff --git a/source/libs/sync/test/syncPingTest.cpp b/source/libs/sync/test/syncPingTest.cpp
deleted file mode 100644
index 5ed72fd56b..0000000000
--- a/source/libs/sync/test/syncPingTest.cpp
+++ /dev/null
@@ -1,57 +0,0 @@
-#include <stdio.h>
-#include "syncEnv.h"
-#include "syncIO.h"
-#include "syncInt.h"
-#include "syncRaftStore.h"
-
-void logTest() {
-  sTrace("--- sync log test: trace");
-  sDebug("--- sync log test: debug");
-  sInfo("--- sync log test: info");
-  sWarn("--- sync log test: warn");
-  sError("--- sync log test: error");
-  sFatal("--- sync log test: fatal");
-}
-
-void doSync() {
-  SSyncInfo syncInfo;
-  syncInfo.vgId = 1;
-
-  SSyncCfg* pCfg = &syncInfo.syncCfg;
-  pCfg->myIndex = 0;
-  pCfg->replicaNum = 3;
-
-  pCfg->nodeInfo[0].nodePort = 7010;
-  taosGetFqdn(pCfg->nodeInfo[0].nodeFqdn);
-
-  pCfg->nodeInfo[1].nodePort = 7110;
-  taosGetFqdn(pCfg->nodeInfo[1].nodeFqdn);
-
-  pCfg->nodeInfo[2].nodePort = 7210;
-  taosGetFqdn(pCfg->nodeInfo[2].nodeFqdn);
-
-  SSyncNode* pSyncNode = syncNodeStart(&syncInfo);
-  assert(pSyncNode != NULL);
-}
-
-int main() {
-  taosInitLog((char*)"syncPingTest.log", 100000, 10);
-  tsAsyncLog = 0;
-  sDebugFlag = 143 + 64;
-
-  logTest();
-
-  int32_t ret = syncIOStart();
-  assert(ret == 0);
-
-  ret = syncEnvStart();
-  assert(ret == 0);
-
-  doSync();
-
-  while (1) {
-    taosMsleep(1000);
-  }
-
-  return 0;
-}
diff --git a/source/libs/sync/test/syncTest.cpp b/source/libs/sync/test/syncTest.cpp
index 12b0905fa0..47566d537e 100644
--- a/source/libs/sync/test/syncTest.cpp
+++ b/source/libs/sync/test/syncTest.cpp
@@ -1,57 +1,7 @@
 #include <stdio.h>
-#include "syncIO.h"
-#include "syncInt.h"
-#include "syncRaftStore.h"
-
-void *pingFunc(void *param) {
-  SSyncIO *io = (SSyncIO *)param;
-  while (1) {
-    sDebug("io->ping");
-    io->ping(io);
-    sleep(1);
-  }
-  return NULL;
-}
 
 int main() {
-  taosInitLog((char *)"syncTest.log", 100000, 10);
-  tsAsyncLog = 0;
-  sDebugFlag = 143 + 64;
-
-  sTrace("sync log test: trace");
-  sDebug("sync log test: debug");
-  sInfo("sync log test: info");
-  sWarn("sync log test: warn");
-  sError("sync log test: error");
-  sFatal("sync log test: fatal");
-
-  SRaftStore *pRaftStore = raftStoreOpen("./raft_store.json");
-  assert(pRaftStore != NULL);
-
-  raftStorePrint(pRaftStore);
-
-  pRaftStore->currentTerm = 100;
-  pRaftStore->voteFor.addr = 200;
-  pRaftStore->voteFor.vgId = 300;
-
-  raftStorePrint(pRaftStore);
-
-  raftStorePersist(pRaftStore);
-
-  sDebug("sync test");
-
-  SSyncIO *syncIO = syncIOCreate();
-  assert(syncIO != NULL);
-
-  syncIO->start(syncIO);
-
-  sleep(2);
-
-  pthread_t tid;
-  pthread_create(&tid, NULL, pingFunc, syncIO);
-
-  while (1) {
-    sleep(1);
-  }
-  return 0;
+    printf("test \n");
+    return 0;
 }
+