From 4bb5ba8bd5fe382cd3f4945c2a2478d8e2188471 Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Thu, 17 Feb 2022 20:53:39 +0800
Subject: [PATCH 01/12] test open UV

---
 cmake/cmake.options | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cmake/cmake.options b/cmake/cmake.options
index e84d02800c..b1558b7789 100644
--- a/cmake/cmake.options
+++ b/cmake/cmake.options
@@ -47,13 +47,13 @@ option(
 option(
     BUILD_WITH_UV
     "If build with libuv" 
-    OFF
+    ON 
 )
 
 option(
     BUILD_WITH_UV_TRANS
     "If build with libuv_trans " 
-    OFF 
+    ON 
 )
 
 option(

From adb813f09e9ff2d36f52be83080273386cba7f72 Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Thu, 17 Feb 2022 21:12:55 +0800
Subject: [PATCH 02/12] test open UV

---
 cmake/cmake.options | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cmake/cmake.options b/cmake/cmake.options
index b1558b7789..343bc16260 100644
--- a/cmake/cmake.options
+++ b/cmake/cmake.options
@@ -47,13 +47,13 @@ option(
 option(
     BUILD_WITH_UV
     "If build with libuv" 
-    ON 
+    OFF  
 )
 
 option(
     BUILD_WITH_UV_TRANS
     "If build with libuv_trans " 
-    ON 
+    OFF 
 )
 
 option(

From 4c19f566864336808834dde07298c69afcfdbae3 Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Mon, 21 Feb 2022 00:11:35 +0800
Subject: [PATCH 03/12] fix bug

---
 cmake/cmake.options                           |   4 +-
 include/libs/transport/trpc.h                 |   1 +
 source/dnode/mgmt/impl/src/dndTransport.c     |   7 +-
 source/dnode/mgmt/impl/test/sut/inc/client.h  |   7 +-
 source/dnode/mgmt/impl/test/sut/inc/sut.h     |   7 +-
 .../dnode/mgmt/impl/test/sut/src/client.cpp   |  33 ++++--
 source/dnode/mgmt/impl/test/sut/src/sut.cpp   |  17 +--
 source/dnode/mnode/impl/src/mnode.c           |   9 +-
 source/dnode/mnode/impl/test/qnode/qnode.cpp  |   7 +-
 source/dnode/mnode/impl/test/trans/trans.cpp  |   4 +-
 source/dnode/mnode/impl/test/user/user.cpp    |   3 +-
 source/libs/transport/inc/transComm.h         |   2 +-
 source/libs/transport/inc/transportInt.h      |   1 +
 source/libs/transport/src/rpcMain.c           |   1 +
 source/libs/transport/src/trans.c             |   4 +-
 source/libs/transport/src/transCli.c          |  82 +++++++++-----
 source/libs/transport/src/transComm.c         |  21 ++--
 source/libs/transport/src/transSrv.c          | 101 ++++++++++++------
 source/os/src/osTimer.c                       |  82 +++++++-------
 source/util/src/ttimer.c                      |  67 +++++++++---
 20 files changed, 294 insertions(+), 166 deletions(-)

diff --git a/cmake/cmake.options b/cmake/cmake.options
index 343bc16260..e19c10f6b2 100644
--- a/cmake/cmake.options
+++ b/cmake/cmake.options
@@ -47,13 +47,13 @@ option(
 option(
     BUILD_WITH_UV
     "If build with libuv" 
-    OFF  
+    ON  
 )
 
 option(
     BUILD_WITH_UV_TRANS
     "If build with libuv_trans " 
-    OFF 
+    ON 
 )
 
 option(
diff --git a/include/libs/transport/trpc.h b/include/libs/transport/trpc.h
index f913ba06d0..538aeb1a0e 100644
--- a/include/libs/transport/trpc.h
+++ b/include/libs/transport/trpc.h
@@ -64,6 +64,7 @@ typedef struct SRpcInit {
   int8_t   connType;      // TAOS_CONN_UDP, TAOS_CONN_TCPC, TAOS_CONN_TCPS
   int      idleTime;      // milliseconds, 0 means idle timer is disabled
 
+  bool noPool;  //  create conn pool or not
   // the following is for client app ecurity only
   char *user;     // user name
   char  spi;      // security parameter index
diff --git a/source/dnode/mgmt/impl/src/dndTransport.c b/source/dnode/mgmt/impl/src/dndTransport.c
index 931cda475c..a006712355 100644
--- a/source/dnode/mgmt/impl/src/dndTransport.c
+++ b/source/dnode/mgmt/impl/src/dndTransport.c
@@ -154,7 +154,7 @@ static void dndInitMsgFp(STransMgmt *pMgmt) {
 }
 
 static void dndProcessResponse(void *parent, SRpcMsg *pRsp, SEpSet *pEpSet) {
-  SDnode     *pDnode = parent;
+  SDnode *    pDnode = parent;
   STransMgmt *pMgmt = &pDnode->tmgmt;
 
   tmsg_t msgType = pRsp->msgType;
@@ -192,6 +192,7 @@ static int32_t dndInitClient(SDnode *pDnode) {
   rpcInit.ckey = INTERNAL_CKEY;
   rpcInit.spi = 1;
   rpcInit.parent = pDnode;
+  rpcInit.noPool = true;
 
   char pass[TSDB_PASSWORD_LEN + 1] = {0};
   taosEncryptPass_c((uint8_t *)(INTERNAL_SECRET), strlen(INTERNAL_SECRET), pass);
@@ -217,7 +218,7 @@ static void dndCleanupClient(SDnode *pDnode) {
 }
 
 static void dndProcessRequest(void *param, SRpcMsg *pReq, SEpSet *pEpSet) {
-  SDnode     *pDnode = param;
+  SDnode *    pDnode = param;
   STransMgmt *pMgmt = &pDnode->tmgmt;
 
   tmsg_t msgType = pReq->msgType;
@@ -311,7 +312,7 @@ static int32_t dndRetrieveUserAuthInfo(void *parent, char *user, char *spi, char
   SAuthReq authReq = {0};
   tstrncpy(authReq.user, user, TSDB_USER_LEN);
   int32_t contLen = tSerializeSAuthReq(NULL, 0, &authReq);
-  void   *pReq = rpcMallocCont(contLen);
+  void *  pReq = rpcMallocCont(contLen);
   tSerializeSAuthReq(pReq, contLen, &authReq);
 
   SRpcMsg rpcMsg = {.pCont = pReq, .contLen = contLen, .msgType = TDMT_MND_AUTH, .ahandle = (void *)9528};
diff --git a/source/dnode/mgmt/impl/test/sut/inc/client.h b/source/dnode/mgmt/impl/test/sut/inc/client.h
index 9cf688fc02..925680d528 100644
--- a/source/dnode/mgmt/impl/test/sut/inc/client.h
+++ b/source/dnode/mgmt/impl/test/sut/inc/client.h
@@ -21,16 +21,21 @@ class TestClient {
   bool Init(const char* user, const char* pass, const char* fqdn, uint16_t port);
   void Cleanup();
 
+  void DoInit();
+
   SRpcMsg* SendReq(SRpcMsg* pReq);
   void     SetRpcRsp(SRpcMsg* pRsp);
   tsem_t*  GetSem();
+  void     Restart();
 
  private:
   char     fqdn[TSDB_FQDN_LEN];
   uint16_t port;
+  char     user[128];
+  char     pass[128];
   void*    clientRpc;
   SRpcMsg* pRsp;
   tsem_t   sem;
 };
 
-#endif /* _TD_TEST_CLIENT_H_ */
\ No newline at end of file
+#endif /* _TD_TEST_CLIENT_H_ */
diff --git a/source/dnode/mgmt/impl/test/sut/inc/sut.h b/source/dnode/mgmt/impl/test/sut/inc/sut.h
index 23913b0531..250d563a8b 100644
--- a/source/dnode/mgmt/impl/test/sut/inc/sut.h
+++ b/source/dnode/mgmt/impl/test/sut/inc/sut.h
@@ -20,10 +20,10 @@
 #include "os.h"
 
 #include "dnode.h"
-#include "tmsg.h"
 #include "tconfig.h"
 #include "tdataformat.h"
 #include "tglobal.h"
+#include "tmsg.h"
 #include "tnote.h"
 #include "trpc.h"
 #include "tthread.h"
@@ -39,6 +39,7 @@ class Testbase {
   void     Restart();
   void     ServerStop();
   void     ServerStart();
+  void     ClientRestart();
   SRpcMsg* SendReq(tmsg_t msgType, void* pCont, int32_t contLen);
 
  private:
@@ -100,7 +101,7 @@ class Testbase {
   {                                               \
     char* bytes = (char*)calloc(1, len);          \
     for (int32_t i = 0; i < len - 1; ++i) {       \
-      bytes[i] = b;                             \
+      bytes[i] = b;                               \
     }                                             \
     EXPECT_STREQ(test.GetShowBinary(len), bytes); \
   }
@@ -138,4 +139,4 @@ class Testbase {
 #define IgnoreTimestamp() \
   { test.GetShowTimestamp(); }
 
-#endif /* _TD_TEST_BASE_H_ */
\ No newline at end of file
+#endif /* _TD_TEST_BASE_H_ */
diff --git a/source/dnode/mgmt/impl/test/sut/src/client.cpp b/source/dnode/mgmt/impl/test/sut/src/client.cpp
index 8403dbf034..589c015013 100644
--- a/source/dnode/mgmt/impl/test/sut/src/client.cpp
+++ b/source/dnode/mgmt/impl/test/sut/src/client.cpp
@@ -13,33 +13,38 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "tep.h"
 #include "sut.h"
+#include "tep.h"
 
 static void processClientRsp(void* parent, SRpcMsg* pRsp, SEpSet* pEpSet) {
   TestClient* client = (TestClient*)parent;
   client->SetRpcRsp(pRsp);
-  uInfo("response:%s from dnode, code:0x%x", TMSG_INFO(pRsp->msgType), pRsp->code);
+  uInfo("x response:%s from dnode, code:0x%x, msgSize: %d", TMSG_INFO(pRsp->msgType), pRsp->code, pRsp->contLen);
   tsem_post(client->GetSem());
 }
 
-void TestClient::SetRpcRsp(SRpcMsg* pRsp) { this->pRsp = pRsp; };
+void TestClient::SetRpcRsp(SRpcMsg* rsp) {
+  this->pRsp = (SRpcMsg*)calloc(1, sizeof(SRpcMsg));
+  this->pRsp->msgType = rsp->msgType;
+  this->pRsp->code = rsp->code;
+  this->pRsp->pCont = rsp->pCont;
+  this->pRsp->contLen = rsp->contLen;
+};
 
 tsem_t* TestClient::GetSem() { return &sem; }
 
-bool TestClient::Init(const char* user, const char* pass, const char* fqdn, uint16_t port) {
+void TestClient::DoInit() {
   char secretEncrypt[TSDB_PASSWORD_LEN + 1] = {0};
   taosEncryptPass_c((uint8_t*)pass, strlen(pass), secretEncrypt);
-
   SRpcInit rpcInit;
   memset(&rpcInit, 0, sizeof(rpcInit));
-  rpcInit.label = (char*)"DND-C";
+  rpcInit.label = (char*)"shell";
   rpcInit.numOfThreads = 1;
   rpcInit.cfp = processClientRsp;
   rpcInit.sessions = 1024;
   rpcInit.connType = TAOS_CONN_CLIENT;
   rpcInit.idleTime = 30 * 1000;
-  rpcInit.user = (char*)user;
+  rpcInit.user = (char*)this->user;
   rpcInit.ckey = (char*)"key";
   rpcInit.parent = this;
   rpcInit.secret = (char*)secretEncrypt;
@@ -47,11 +52,16 @@ bool TestClient::Init(const char* user, const char* pass, const char* fqdn, uint
 
   clientRpc = rpcOpen(&rpcInit);
   ASSERT(clientRpc);
+  tsem_init(&this->sem, 0, 0);
+}
 
-  tsem_init(&sem, 0, 0);
+bool TestClient::Init(const char* user, const char* pass, const char* fqdn, uint16_t port) {
   strcpy(this->fqdn, fqdn);
+  strcpy(this->user, user);
+  strcpy(this->pass, pass);
   this->port = port;
-
+  // this->pRsp = NULL;
+  this->DoInit();
   return true;
 }
 
@@ -60,11 +70,16 @@ void TestClient::Cleanup() {
   rpcClose(clientRpc);
 }
 
+void TestClient::Restart() {
+  this->Cleanup();
+  this->DoInit();
+}
 SRpcMsg* TestClient::SendReq(SRpcMsg* pReq) {
   SEpSet epSet = {0};
   addEpIntoEpSet(&epSet, fqdn, port);
   rpcSendRequest(clientRpc, &epSet, pReq, NULL);
   tsem_wait(&sem);
+  uInfo("y response:%s from dnode, code:0x%x, msgSize: %d", TMSG_INFO(pRsp->msgType), pRsp->code, pRsp->contLen);
 
   return pRsp;
 }
diff --git a/source/dnode/mgmt/impl/test/sut/src/sut.cpp b/source/dnode/mgmt/impl/test/sut/src/sut.cpp
index 09a738be3b..771c5886ef 100644
--- a/source/dnode/mgmt/impl/test/sut/src/sut.cpp
+++ b/source/dnode/mgmt/impl/test/sut/src/sut.cpp
@@ -21,9 +21,9 @@ void Testbase::InitLog(const char* path) {
   mDebugFlag = 143;
   cDebugFlag = 0;
   jniDebugFlag = 0;
-  tmrDebugFlag = 0;
-  uDebugFlag = 0;
-  rpcDebugFlag = 0;
+  tmrDebugFlag = 143;
+  uDebugFlag = 143;
+  rpcDebugFlag = 143;
   qDebugFlag = 0;
   wDebugFlag = 0;
   sDebugFlag = 0;
@@ -66,16 +66,21 @@ void Testbase::Init(const char* path, int16_t port) {
 
 void Testbase::Cleanup() {
   tFreeSTableMetaRsp(&metaRsp);
-  server.Stop();
   client.Cleanup();
+  taosMsleep(10);
+  server.Stop();
   dndCleanup();
 }
 
-void Testbase::Restart() { server.Restart(); }
+void Testbase::Restart() {
+  server.Restart();
+  client.Restart();
+}
 
 void Testbase::ServerStop() { server.Stop(); }
 
 void Testbase::ServerStart() { server.DoStart(); }
+void Testbase::ClientRestart() { client.Restart(); }
 
 SRpcMsg* Testbase::SendReq(tmsg_t msgType, void* pCont, int32_t contLen) {
   SRpcMsg rpcMsg = {0};
@@ -194,4 +199,4 @@ int32_t Testbase::GetShowRows() { return pRetrieveRsp->numOfRows; }
 
 STableMetaRsp* Testbase::GetShowMeta() { return &metaRsp; }
 
-SRetrieveTableRsp* Testbase::GetRetrieveRsp() { return pRetrieveRsp; }
\ No newline at end of file
+SRetrieveTableRsp* Testbase::GetRetrieveRsp() { return pRetrieveRsp; }
diff --git a/source/dnode/mnode/impl/src/mnode.c b/source/dnode/mnode/impl/src/mnode.c
index 699ccab92c..64b4aa6dd7 100644
--- a/source/dnode/mnode/impl/src/mnode.c
+++ b/source/dnode/mnode/impl/src/mnode.c
@@ -77,7 +77,7 @@ static void mndTransReExecute(void *param, void *tmrId) {
   SMnode *pMnode = param;
   if (mndIsMaster(pMnode)) {
     int32_t contLen = 0;
-    void   *pReq = mndBuildTimerMsg(&contLen);
+    void *  pReq = mndBuildTimerMsg(&contLen);
     SRpcMsg rpcMsg = {.msgType = TDMT_MND_TRANS, .pCont = pReq, .contLen = contLen};
     pMnode->putReqToMWriteQFp(pMnode->pDnode, &rpcMsg);
   }
@@ -89,7 +89,7 @@ static void mndCalMqRebalance(void *param, void *tmrId) {
   SMnode *pMnode = param;
   if (mndIsMaster(pMnode)) {
     int32_t contLen = 0;
-    void   *pReq = mndBuildTimerMsg(&contLen);
+    void *  pReq = mndBuildTimerMsg(&contLen);
     SRpcMsg rpcMsg = {.msgType = TDMT_MND_MQ_TIMER, .pCont = pReq, .contLen = contLen};
     pMnode->putReqToMReadQFp(pMnode->pDnode, &rpcMsg);
   }
@@ -404,7 +404,8 @@ SMnodeMsg *mndInitMsg(SMnode *pMnode, SRpcMsg *pRpcMsg) {
     return NULL;
   }
 
-  if (pRpcMsg->msgType != TDMT_MND_TRANS && pRpcMsg->msgType != TDMT_MND_MQ_TIMER && pRpcMsg->msgType != TDMT_MND_MQ_DO_REBALANCE) {
+  if (pRpcMsg->msgType != TDMT_MND_TRANS && pRpcMsg->msgType != TDMT_MND_MQ_TIMER &&
+      pRpcMsg->msgType != TDMT_MND_MQ_DO_REBALANCE) {
     SRpcConnInfo connInfo = {0};
     if ((pRpcMsg->msgType & 1U) && rpcGetConnInfo(pRpcMsg->handle, &connInfo) != 0) {
       taosFreeQitem(pMsg);
@@ -439,7 +440,7 @@ void mndProcessMsg(SMnodeMsg *pMsg) {
   SMnode *pMnode = pMsg->pMnode;
   int32_t code = 0;
   tmsg_t  msgType = pMsg->rpcMsg.msgType;
-  void   *ahandle = pMsg->rpcMsg.ahandle;
+  void *  ahandle = pMsg->rpcMsg.ahandle;
   bool    isReq = (msgType & 1U);
 
   mTrace("msg:%p, type:%s will be processed, app:%p", pMsg, TMSG_INFO(msgType), ahandle);
diff --git a/source/dnode/mnode/impl/test/qnode/qnode.cpp b/source/dnode/mnode/impl/test/qnode/qnode.cpp
index d4e308268a..b8a0e61ca3 100644
--- a/source/dnode/mnode/impl/test/qnode/qnode.cpp
+++ b/source/dnode/mnode/impl/test/qnode/qnode.cpp
@@ -190,6 +190,9 @@ TEST_F(MndTestQnode, 03_Create_Qnode_Rollback) {
     tSerializeSMCreateDropQSBNodeReq(pReq, contLen, &createReq);
 
     server2.Stop();
+    taosMsleep(1000);
+    // test.ClientRestart();
+
     SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_QNODE, pReq, contLen);
     ASSERT_NE(pRsp, nullptr);
     ASSERT_EQ(pRsp->code, TSDB_CODE_RPC_NETWORK_UNAVAIL);
@@ -226,6 +229,7 @@ TEST_F(MndTestQnode, 03_Create_Qnode_Rollback) {
   {
     // server start, wait until the rollback finished
     server2.DoStart();
+    test.ClientRestart();
     taosMsleep(1000);
 
     int32_t retry = 0;
@@ -248,7 +252,6 @@ TEST_F(MndTestQnode, 03_Create_Qnode_Rollback) {
     ASSERT_NE(retry, retryMax);
   }
 }
-
 TEST_F(MndTestQnode, 04_Drop_Qnode_Rollback) {
   {
     // send message first, then dnode2 crash, result is returned, and rollback is started
@@ -315,4 +318,4 @@ TEST_F(MndTestQnode, 04_Drop_Qnode_Rollback) {
 
     ASSERT_NE(retry, retryMax);
   }
-}
\ No newline at end of file
+}
diff --git a/source/dnode/mnode/impl/test/trans/trans.cpp b/source/dnode/mnode/impl/test/trans/trans.cpp
index 8a62ed639a..fe3872aba8 100644
--- a/source/dnode/mnode/impl/test/trans/trans.cpp
+++ b/source/dnode/mnode/impl/test/trans/trans.cpp
@@ -46,8 +46,10 @@ class MndTestTrans : public ::testing::Test {
     free(buffer);
     taosFsyncFile(fd);
     taosCloseFile(fd);
+    taosMsleep(1000);
 
     test.ServerStart();
+    test.ClientRestart();
   }
 
   static Testbase   test;
@@ -200,4 +202,4 @@ TEST_F(MndTestTrans, 03_Create_Qnode2_Crash) {
     test.SendShowRetrieveReq();
     EXPECT_EQ(test.GetShowRows(), 2);
   }
-}
\ No newline at end of file
+}
diff --git a/source/dnode/mnode/impl/test/user/user.cpp b/source/dnode/mnode/impl/test/user/user.cpp
index d8ce599be1..61b99beeb7 100644
--- a/source/dnode/mnode/impl/test/user/user.cpp
+++ b/source/dnode/mnode/impl/test/user/user.cpp
@@ -617,6 +617,7 @@ TEST_F(MndTestUser, 06_Create_Drop_Alter_User) {
   // restart
   test.Restart();
 
+  taosMsleep(1000);
   test.SendShowMetaReq(TSDB_MGMT_TABLE_USER, "");
   CHECK_META("show users", 4);
 
@@ -631,4 +632,4 @@ TEST_F(MndTestUser, 06_Create_Drop_Alter_User) {
   CheckTimestamp();
   CheckBinary("root", TSDB_USER_LEN);
   CheckBinary("root", TSDB_USER_LEN);
-}
\ No newline at end of file
+}
diff --git a/source/libs/transport/inc/transComm.h b/source/libs/transport/inc/transComm.h
index d5a8cf5f84..2078a218ee 100644
--- a/source/libs/transport/inc/transComm.h
+++ b/source/libs/transport/inc/transComm.h
@@ -217,7 +217,7 @@ typedef struct SConnBuffer {
   char* buf;
   int   len;
   int   cap;
-  int   left;
+  int   total;
 } SConnBuffer;
 
 typedef void (*AsyncCB)(uv_async_t* handle);
diff --git a/source/libs/transport/inc/transportInt.h b/source/libs/transport/inc/transportInt.h
index 3c8c922d83..a36b671eb4 100644
--- a/source/libs/transport/inc/transportInt.h
+++ b/source/libs/transport/inc/transportInt.h
@@ -56,6 +56,7 @@ typedef struct {
   int8_t   connType;
   int64_t  index;
   char     label[TSDB_LABEL_LEN];
+  bool     noPool;  // pool or not
 
   char user[TSDB_UNI_LEN];         // meter ID
   char spi;                        // security parameter index
diff --git a/source/libs/transport/src/rpcMain.c b/source/libs/transport/src/rpcMain.c
index 3bb7d103d7..72c1ff6893 100644
--- a/source/libs/transport/src/rpcMain.c
+++ b/source/libs/transport/src/rpcMain.c
@@ -64,6 +64,7 @@ typedef struct {
   void (*cfp)(void *parent, SRpcMsg *, SEpSet *);
   int (*afp)(void *parent, char *user, char *spi, char *encrypt, char *secret, char *ckey);
 
+  bool             noPool;
   int32_t          refCount;
   void *           parent;
   void *           idPool;     // handle to ID pool
diff --git a/source/libs/transport/src/trans.c b/source/libs/transport/src/trans.c
index c3d3cfa2ab..48c15ca286 100644
--- a/source/libs/transport/src/trans.c
+++ b/source/libs/transport/src/trans.c
@@ -27,7 +27,7 @@ void* rpcOpen(const SRpcInit* pInit) {
     return NULL;
   }
   if (pInit->label) {
-    tstrncpy(pRpc->label, pInit->label, strlen(pInit->label));
+    tstrncpy(pRpc->label, pInit->label, strlen(pInit->label) + 1);
   }
   pRpc->cfp = pInit->cfp;
   if (pInit->connType == TAOS_CONN_SERVER) {
@@ -35,6 +35,8 @@ void* rpcOpen(const SRpcInit* pInit) {
   } else {
     pRpc->numOfThreads = pInit->numOfThreads;
   }
+
+  pRpc->noPool = pInit->noPool;
   pRpc->connType = pInit->connType;
   pRpc->idleTime = pInit->idleTime;
   pRpc->tcphandle = (*taosInitHandle[pRpc->connType])(0, pInit->localPort, pRpc->label, pRpc->numOfThreads, NULL, pRpc);
diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index f1bd1ba980..4ed1cc2e73 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -126,6 +126,9 @@ static void clientHandleResp(SCliConn* conn) {
   pHead->code = htonl(pHead->code);
   pHead->msgLen = htonl(pHead->msgLen);
 
+  // buf's mem alread translated to rpcMsg.pCont
+  transClearBuffer(&conn->readBuf);
+
   SRpcMsg rpcMsg;
   rpcMsg.contLen = transContLenFromMsg(pHead->msgLen);
   rpcMsg.pCont = transContFromHead((char*)pHead);
@@ -140,9 +143,9 @@ static void clientHandleResp(SCliConn* conn) {
     tDebug("client conn %p persist by app", conn);
   }
 
-  tDebug("client conn %p %s received from %s:%d, local info: %s:%d", conn, TMSG_INFO(pHead->msgType),
-         inet_ntoa(conn->addr.sin_addr), ntohs(conn->addr.sin_port), inet_ntoa(conn->locaddr.sin_addr),
-         ntohs(conn->locaddr.sin_port));
+  tDebug("%s client conn %p %s received from %s:%d, local info: %s:%d, msg size: %d", pRpc->label, conn,
+         TMSG_INFO(pHead->msgType), inet_ntoa(conn->addr.sin_addr), ntohs(conn->addr.sin_port),
+         inet_ntoa(conn->locaddr.sin_addr), ntohs(conn->locaddr.sin_port), rpcMsg.contLen);
 
   conn->secured = pHead->secured;
   if (conn->push != NULL && conn->ctnRdCnt != 0) {
@@ -150,26 +153,26 @@ static void clientHandleResp(SCliConn* conn) {
     conn->push = NULL;
   } else {
     if (pCtx->pSem == NULL) {
-      tTrace("client conn %p handle resp", conn);
+      tTrace("%s client conn %p handle resp", pRpc->label, conn);
       (pRpc->cfp)(pRpc->parent, &rpcMsg, NULL);
     } else {
-      tTrace("client conn(sync) %p handle resp", conn);
+      tTrace("%s client conn(sync) %p handle resp", pRpc->label, conn);
       memcpy((char*)pCtx->pRsp, (char*)&rpcMsg, sizeof(rpcMsg));
       tsem_post(pCtx->pSem);
     }
   }
   conn->ctnRdCnt += 1;
 
-  // buf's mem alread translated to rpcMsg.pCont
-  transClearBuffer(&conn->readBuf);
-
   uv_read_start((uv_stream_t*)conn->stream, clientAllocBufferCb, clientReadCb);
 
   SCliThrdObj* pThrd = conn->hostThrd;
 
   // user owns conn->persist = 1
   if (conn->push == NULL && conn->persist == 0) {
-    addConnToPool(pThrd->pool, pCtx->ip, pCtx->port, conn);
+    if (pRpc->noPool == true) {
+    } else {
+      addConnToPool(pThrd->pool, pCtx->ip, pCtx->port, conn);
+    }
   }
   destroyCmsg(conn->data);
   conn->data = NULL;
@@ -184,7 +187,6 @@ static void clientHandleExcept(SCliConn* pConn) {
     clientConnDestroy(pConn, true);
     return;
   }
-  tTrace("client conn %p start to destroy", pConn);
   SCliMsg* pMsg = pConn->data;
 
   tmsg_t msgType = TDMT_MND_CONNECT;
@@ -213,6 +215,7 @@ static void clientHandleExcept(SCliConn* pConn) {
     }
     pConn->push = NULL;
   }
+  tTrace("%s client conn %p start to destroy", pCtx->pTransInst->label, pConn);
   if (pConn->push == NULL) {
     destroyCmsg(pConn->data);
     pConn->data = NULL;
@@ -226,7 +229,7 @@ static void clientTimeoutCb(uv_timer_t* handle) {
   SCliThrdObj* pThrd = handle->data;
   SRpcInfo*    pRpc = pThrd->pTransInst;
   int64_t      currentTime = pThrd->nextTimeout;
-  tTrace("client conn timeout, try to remove expire conn from conn pool");
+  tTrace("%s, client conn timeout, try to remove expire conn from conn pool", pRpc->label);
 
   SConnList* p = taosHashIterate((SHashObj*)pThrd->pool, NULL);
   while (p != NULL) {
@@ -307,21 +310,30 @@ static void addConnToPool(void* pool, char* ip, uint32_t port, SCliConn* conn) {
   QUEUE_PUSH(&plist->conn, &conn->conn);
 }
 static bool clientReadComplete(SConnBuffer* data) {
-  STransMsgHead head;
-  int32_t       headLen = sizeof(head);
-  if (data->len >= headLen) {
-    memcpy((char*)&head, data->buf, headLen);
-    int32_t msgLen = (int32_t)htonl((uint32_t)head.msgLen);
-    if (msgLen > data->len) {
-      data->left = msgLen - data->len;
-      return false;
-    } else if (msgLen == data->len) {
-      data->left = 0;
-      return true;
-    }
-  } else {
-    return false;
+  if (data->len >= sizeof(STransMsgHead)) {
+    STransMsgHead head;
+    memcpy((char*)&head, data->buf, sizeof(head));
+    int32_t msgLen = (int32_t)htonl(head.msgLen);
+    data->total = msgLen;
   }
+
+  if (data->len == data->cap && data->total == data->cap) {
+    return true;
+  }
+  return false;
+  // if (data->len >= headLen) {
+  //  memcpy((char*)&head, data->buf, headLen);
+  //  int32_t msgLen = (int32_t)htonl((uint32_t)head.msgLen);
+  //  if (msgLen > data->len) {
+  //    data->left = msgLen - data->len;
+  //    return false;
+  //  } else if (msgLen == data->len) {
+  //    data->left = 0;
+  //    return true;
+  //  }
+  //} else {
+  //  return false;
+  //}
 }
 static void clientAllocBufferCb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf) {
   SCliConn*    conn = handle->data;
@@ -338,7 +350,7 @@ static void clientReadCb(uv_stream_t* handle, ssize_t nread, const uv_buf_t* buf
   if (nread > 0) {
     pBuf->len += nread;
     if (clientReadComplete(pBuf)) {
-      uv_read_stop((uv_stream_t*)conn->stream);
+      // uv_read_stop((uv_stream_t*)conn->stream);
       tTrace("client conn %p read complete", conn);
       clientHandleResp(conn);
     } else {
@@ -346,6 +358,10 @@ static void clientReadCb(uv_stream_t* handle, ssize_t nread, const uv_buf_t* buf
     }
     return;
   }
+  if (nread == UV_EOF) {
+    tError("client conn %p read error: %s", conn, uv_err_name(nread));
+    clientHandleExcept(conn);
+  }
   assert(nread <= 0);
   if (nread == 0) {
     // ref http://docs.libuv.org/en/v1.x/stream.html?highlight=uv_read_start#c.uv_read_cb
@@ -353,7 +369,7 @@ static void clientReadCb(uv_stream_t* handle, ssize_t nread, const uv_buf_t* buf
     // read(2).
     return;
   }
-  if (nread < 0 || nread == UV_EOF) {
+  if (nread < 0) {
     tError("client conn %p read error: %s", conn, uv_err_name(nread));
     clientHandleExcept(conn);
   }
@@ -467,6 +483,7 @@ static void clientConnCb(uv_connect_t* req, int status) {
 static void clientHandleQuit(SCliMsg* pMsg, SCliThrdObj* pThrd) {
   tDebug("client work thread %p start to quit", pThrd);
   destroyCmsg(pMsg);
+  destroyConnPool(pThrd->pool);
   // transDestroyAsyncPool(pThr) uv_close((uv_handle_t*)pThrd->cliAsync, NULL);
   uv_timer_stop(pThrd->timer);
   pThrd->quit = true;
@@ -483,7 +500,10 @@ static void clientHandleReq(SCliMsg* pMsg, SCliThrdObj* pThrd) {
 
   SCliConn* conn = NULL;
   if (pMsg->msg.handle == NULL) {
-    conn = getConnFromPool(pThrd->pool, pCtx->ip, pCtx->port);
+    if (pCtx->pTransInst->noPool == true) {
+    } else {
+      conn = getConnFromPool(pThrd->pool, pCtx->ip, pCtx->port);
+    }
     if (conn != NULL) {
       tTrace("client conn %p get from conn pool", conn);
     }
@@ -512,7 +532,11 @@ static void clientHandleReq(SCliMsg* pMsg, SCliThrdObj* pThrd) {
     conn->stream = (uv_stream_t*)malloc(sizeof(uv_tcp_t));
     uv_tcp_init(pThrd->loop, (uv_tcp_t*)(conn->stream));
     conn->stream->data = conn;
-
+    uv_tcp_nodelay((uv_tcp_t*)conn->stream, 1);
+    int ret = uv_tcp_keepalive((uv_tcp_t*)conn->stream, 1, 1);
+    if (ret) {
+      tTrace("client conn %p failed to set keepalive, %s", conn, uv_err_name(ret));
+    }
     // write req handle
     conn->writeReq = malloc(sizeof(uv_write_t));
     conn->writeReq->data = conn;
diff --git a/source/libs/transport/src/transComm.c b/source/libs/transport/src/transComm.c
index 7aa5aa16f1..388e0da4e0 100644
--- a/source/libs/transport/src/transComm.c
+++ b/source/libs/transport/src/transComm.c
@@ -205,6 +205,7 @@ int transInitBuffer(SConnBuffer* buf) {
 }
 int transClearBuffer(SConnBuffer* buf) {
   memset(buf, 0, sizeof(*buf));
+  buf->total = -1;
   return 0;
 }
 int transAllocBuffer(SConnBuffer* connBuf, uv_buf_t* uvBuf) {
@@ -214,27 +215,25 @@ int transAllocBuffer(SConnBuffer* connBuf, uv_buf_t* uvBuf) {
    * |<------STransMsgHead------->|<-------------------userdata--------------->|<-----auth data----->|<----user
    * info--->|
    */
-  static const int CAPACITY = 1024;
+  static const int CAPACITY = sizeof(STransMsgHead);
 
   SConnBuffer* p = connBuf;
   if (p->cap == 0) {
     p->buf = (char*)calloc(CAPACITY, sizeof(char));
     p->len = 0;
     p->cap = CAPACITY;
-    p->left = -1;
+    p->total = 0;
 
     uvBuf->base = p->buf;
     uvBuf->len = CAPACITY;
   } else {
-    if (p->len >= p->cap) {
-      if (p->left == -1) {
-        p->cap *= 2;
-        p->buf = realloc(p->buf, p->cap);
-      } else if (p->len + p->left > p->cap) {
-        p->cap = p->len + p->left;
-        p->buf = realloc(p->buf, p->len + p->left);
-      }
-    }
+    STransMsgHead head;
+    memcpy((char*)&head, p->buf, sizeof(head));
+    int32_t msgLen = (int32_t)htonl(head.msgLen);
+
+    p->total = msgLen;
+    p->cap = msgLen;
+    p->buf = realloc(p->buf, p->cap);
     uvBuf->base = p->buf + p->len;
     uvBuf->len = p->cap - p->len;
   }
diff --git a/source/libs/transport/src/transSrv.c b/source/libs/transport/src/transSrv.c
index 7ddeb99c9d..5292bad209 100644
--- a/source/libs/transport/src/transSrv.c
+++ b/source/libs/transport/src/transSrv.c
@@ -61,6 +61,7 @@ typedef struct SWorkThrdObj {
   SAsyncPool* asyncPool;
   // uv_async_t*     workerAsync;  //
   queue           msg;
+  queue           conn;
   pthread_mutex_t msgMtx;
   void*           pTransInst;
 } SWorkThrdObj;
@@ -103,7 +104,7 @@ static void uvStartSendResp(SSrvMsg* msg);
 static void destroySmsg(SSrvMsg* smsg);
 // check whether already read complete packet
 static bool      readComplete(SConnBuffer* buf);
-static SSrvConn* createConn();
+static SSrvConn* createConn(void* hThrd);
 static void      destroyConn(SSrvConn* conn, bool clear /*clear handle or not*/);
 
 static void uvDestroyConn(uv_handle_t* handle);
@@ -117,11 +118,6 @@ static bool addHandleToWorkloop(void* arg);
 static bool addHandleToAcceptloop(void* arg);
 
 void uvAllocReadBufferCb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf) {
-  /*
-   * formate of data buffer:
-   * |<--------------------------data from socket------------------------------->|
-   * |<------STransMsgHead------->|<-------------------other data--------------->|
-   */
   SSrvConn*    conn = handle->data;
   SConnBuffer* pBuf = &conn->readBuf;
   transAllocBuffer(pBuf, buf);
@@ -131,23 +127,27 @@ void uvAllocReadBufferCb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* b
 //
 static bool readComplete(SConnBuffer* data) {
   // TODO(yihao): handle pipeline later
-  STransMsgHead head;
-  int32_t       headLen = sizeof(head);
-  if (data->len >= headLen) {
-    memcpy((char*)&head, data->buf, headLen);
-    int32_t msgLen = (int32_t)htonl((uint32_t)head.msgLen);
-    if (msgLen > data->len) {
-      data->left = msgLen - data->len;
-      return false;
-    } else if (msgLen == data->len) {
-      return true;
-    } else if (msgLen < data->len) {
-      return false;
-      // handle other packet later
-    }
-  } else {
-    return false;
+  if (data->len == data->cap && data->total == data->cap) {
+    return true;
   }
+  return false;
+  // STransMsgHead head;
+  // int32_t       headLen = sizeof(head);
+  // if (data->len >= headLen) {
+  //  memcpy((char*)&head, data->buf, headLen);
+  //  int32_t msgLen = (int32_t)htonl((uint32_t)head.msgLen);
+  //  if (msgLen > data->len) {
+  //    data->left = msgLen - data->len;
+  //    return false;
+  //  } else if (msgLen == data->len) {
+  //    return true;
+  //  } else if (msgLen < data->len) {
+  //    return false;
+  //    // handle other packet later
+  //  }
+  //} else {
+  //  return false;
+  //}
 }
 
 // static void uvDoProcess(SRecvInfo* pRecv) {
@@ -241,7 +241,7 @@ static void uvHandleReq(SSrvConn* pConn) {
   }
 
   pConn->inType = pHead->msgType;
-  assert(transIsReq(pHead->msgType));
+  // assert(transIsReq(pHead->msgType));
 
   SRpcInfo* pRpc = (SRpcInfo*)p->shandle;
   pHead->code = htonl(pHead->code);
@@ -266,9 +266,9 @@ static void uvHandleReq(SSrvConn* pConn) {
 
   transClearBuffer(&pConn->readBuf);
   pConn->ref++;
-  tDebug("server conn %p %s received from %s:%d, local info: %s:%d", pConn, TMSG_INFO(rpcMsg.msgType),
+  tDebug("server conn %p %s received from %s:%d, local info: %s:%d, msg size: %d", pConn, TMSG_INFO(rpcMsg.msgType),
          inet_ntoa(pConn->addr.sin_addr), ntohs(pConn->addr.sin_port), inet_ntoa(pConn->locaddr.sin_addr),
-         ntohs(pConn->locaddr.sin_port));
+         ntohs(pConn->locaddr.sin_port), rpcMsg.contLen);
   (*(pRpc->cfp))(pRpc->parent, &rpcMsg, NULL);
   // uv_timer_start(pConn->pTimer, uvHandleActivityTimeout, pRpc->idleTime * 10000, 0);
   // auth
@@ -290,6 +290,14 @@ void uvOnReadCb(uv_stream_t* cli, ssize_t nread, const uv_buf_t* buf) {
     }
     return;
   }
+  if (nread == UV_EOF) {
+    tError("server conn %p read error: %s", conn, uv_err_name(nread));
+    if (conn->ref > 1) {
+      conn->ref++;  // ref > 1 signed that write is in progress
+    }
+    destroyConn(conn, true);
+    return;
+  }
   if (nread == 0) {
     return;
   }
@@ -302,8 +310,8 @@ void uvOnReadCb(uv_stream_t* cli, ssize_t nread, const uv_buf_t* buf) {
   }
 }
 void uvAllocConnBufferCb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf) {
-  buf->base = malloc(sizeof(char));
   buf->len = 2;
+  buf->base = calloc(1, sizeof(char) * buf->len);
 }
 
 void uvOnTimeoutCb(uv_timer_t* handle) {
@@ -386,6 +394,7 @@ static void uvStartSendRespInternal(SSrvMsg* smsg) {
 static void uvStartSendResp(SSrvMsg* smsg) {
   // impl
   SSrvConn* pConn = smsg->pConn;
+  pConn->ref--;  //
   if (taosArrayGetSize(pConn->srvMsgs) > 0) {
     tDebug("server conn %p push data to client %s:%d, local info: %s:%d", pConn, inet_ntoa(pConn->addr.sin_addr),
            ntohs(pConn->addr.sin_port), inet_ntoa(pConn->locaddr.sin_addr), ntohs(pConn->locaddr.sin_port));
@@ -403,6 +412,16 @@ static void destroySmsg(SSrvMsg* smsg) {
   transFreeMsg(smsg->msg.pCont);
   free(smsg);
 }
+static void destroyAllConn(SWorkThrdObj* pThrd) {
+  while (!QUEUE_IS_EMPTY(&pThrd->conn)) {
+    queue* h = QUEUE_HEAD(&pThrd->conn);
+    QUEUE_REMOVE(h);
+    QUEUE_INIT(h);
+
+    SSrvConn* c = QUEUE_DATA(h, SSrvConn, queue);
+    destroyConn(c, true);
+  }
+}
 void uvWorkerAsyncCb(uv_async_t* handle) {
   SAsyncItem*   item = handle->data;
   SWorkThrdObj* pThrd = item->pThrd;
@@ -424,8 +443,9 @@ void uvWorkerAsyncCb(uv_async_t* handle) {
       continue;
     }
     if (msg->pConn == NULL) {
-      //
       free(msg);
+
+      destroyAllConn(pThrd);
       uv_stop(pThrd->loop);
     } else {
       uvStartSendResp(msg);
@@ -439,6 +459,7 @@ void uvWorkerAsyncCb(uv_async_t* handle) {
 }
 static void uvAcceptAsyncCb(uv_async_t* async) {
   SServerObj* srv = async->data;
+  uv_close((uv_handle_t*)&srv->server, NULL);
   uv_stop(srv->loop);
 }
 
@@ -491,7 +512,7 @@ void uvOnConnectionCb(uv_stream_t* q, ssize_t nread, const uv_buf_t* buf) {
   uv_handle_type pending = uv_pipe_pending_type(pipe);
   assert(pending == UV_TCP);
 
-  SSrvConn* pConn = createConn();
+  SSrvConn* pConn = createConn(pThrd);
 
   pConn->pTransInst = pThrd->pTransInst;
   /* init conn timer*/
@@ -507,6 +528,9 @@ void uvOnConnectionCb(uv_stream_t* q, ssize_t nread, const uv_buf_t* buf) {
   uv_tcp_init(pThrd->loop, pConn->pTcp);
   pConn->pTcp->data = pConn;
 
+  uv_tcp_nodelay(pConn->pTcp, 1);
+  uv_tcp_keepalive(pConn->pTcp, 1, 1);
+
   // init write request, just
   pConn->pWriter = calloc(1, sizeof(uv_write_t));
   pConn->pWriter->data = pConn;
@@ -560,6 +584,9 @@ static bool addHandleToWorkloop(void* arg) {
   QUEUE_INIT(&pThrd->msg);
   pthread_mutex_init(&pThrd->msgMtx, NULL);
 
+  // conn set
+  QUEUE_INIT(&pThrd->conn);
+
   pThrd->asyncPool = transCreateAsyncPool(pThrd->loop, 4, pThrd, uvWorkerAsyncCb);
   uv_read_start((uv_stream_t*)pThrd->pipe, uvAllocConnBufferCb, uvOnConnectionCb);
   return true;
@@ -598,8 +625,13 @@ void* workerThread(void* arg) {
   uv_run(pThrd->loop, UV_RUN_DEFAULT);
 }
 
-static SSrvConn* createConn() {
+static SSrvConn* createConn(void* hThrd) {
+  SWorkThrdObj* pThrd = hThrd;
+
   SSrvConn* pConn = (SSrvConn*)calloc(1, sizeof(SSrvConn));
+  QUEUE_INIT(&pConn->queue);
+
+  QUEUE_PUSH(&pThrd->conn, &pConn->queue);
   pConn->srvMsgs = taosArrayInit(2, sizeof(void*));  //
   tTrace("conn %p created", pConn);
   ++pConn->ref;
@@ -610,7 +642,7 @@ static void destroyConn(SSrvConn* conn, bool clear) {
   if (conn == NULL) {
     return;
   }
-  tTrace("server conn %p try to destroy", conn);
+  tTrace("server conn %p try to destroy, ref: %d", conn, conn->ref);
   if (--conn->ref > 0) {
     return;
   }
@@ -621,19 +653,18 @@ static void destroyConn(SSrvConn* conn, bool clear) {
     destroySmsg(msg);
   }
   taosArrayDestroy(conn->srvMsgs);
-
-  // destroySmsg(conn->pSrvMsg);
-  // conn->pSrvMsg = NULL;
+  QUEUE_REMOVE(&conn->queue);
 
   if (clear) {
-    uv_close((uv_handle_t*)conn->pTcp, uvDestroyConn);
+    uv_tcp_close_reset(conn->pTcp, uvDestroyConn);
+    // uv_close((uv_handle_t*)conn->pTcp, uvDestroyConn);
   }
 }
 static void uvDestroyConn(uv_handle_t* handle) {
   SSrvConn* conn = handle->data;
   tDebug("server conn %p destroy", conn);
   uv_timer_stop(conn->pTimer);
-  free(conn->pTimer);
+  // free(conn->pTimer);
   // free(conn->pTcp);
   free(conn->pWriter);
   free(conn);
diff --git a/source/os/src/osTimer.c b/source/os/src/osTimer.c
index 7e542ef80f..bb526e0ba0 100644
--- a/source/os/src/osTimer.c
+++ b/source/os/src/osTimer.c
@@ -22,13 +22,12 @@
  * windows implementation
  */
 
-
-#include <Windows.h>
 #include <Mmsystem.h>
-#include <stdio.h>
+#include <Windows.h>
 #include <stdint.h>
+#include <stdio.h>
 
-#pragma warning( disable : 4244 )
+#pragma warning(disable : 4244)
 
 typedef void (*win_timer_f)(int signo);
 
@@ -40,8 +39,8 @@ void WINAPI taosWinOnTimer(UINT wTimerID, UINT msg, DWORD_PTR dwUser, DWORD_PTR
 }
 
 static MMRESULT timerId;
-int taosInitTimer(win_timer_f callback, int ms) {
-  DWORD_PTR param = *((int64_t *) & callback);
+int             taosInitTimer(win_timer_f callback, int ms) {
+  DWORD_PTR param = *((int64_t *)&callback);
 
   timerId = timeSetEvent(ms, 1, (LPTIMECALLBACK)taosWinOnTimer, param, TIME_PERIODIC);
   if (timerId == 0) {
@@ -50,9 +49,7 @@ int taosInitTimer(win_timer_f callback, int ms) {
   return 0;
 }
 
-void taosUninitTimer() {
-  timeKillEvent(timerId);
-}
+void taosUninitTimer() { timeKillEvent(timerId); }
 
 #elif defined(_TD_DARWIN_64)
 
@@ -60,32 +57,32 @@ void taosUninitTimer() {
  * darwin implementation
  */
 
-#include <sys/syscall.h>
 #include <sys/event.h>
+#include <sys/syscall.h>
 #include <unistd.h>
 
 static void (*timer_callback)(int);
-static int           timer_ms = 0;
-static pthread_t     timer_thread;
-static int           timer_kq = -1;
-static volatile int  timer_stop = 0;
+static int          timer_ms = 0;
+static pthread_t    timer_thread;
+static int          timer_kq = -1;
+static volatile int timer_stop = 0;
 
-static void* timer_routine(void *arg) {
+static void* timer_routine(void* arg) {
   (void)arg;
   setThreadName("timer");
 
-  int r = 0;
+  int             r = 0;
   struct timespec to = {0};
-  to.tv_sec    = timer_ms / 1000;
-  to.tv_nsec   = (timer_ms % 1000) * 1000000;
+  to.tv_sec = timer_ms / 1000;
+  to.tv_nsec = (timer_ms % 1000) * 1000000;
   while (!timer_stop) {
     struct kevent64_s kev[10] = {0};
-    r = kevent64(timer_kq, NULL, 0, kev, sizeof(kev)/sizeof(kev[0]), 0, &to);
-    if (r!=0) {
+    r = kevent64(timer_kq, NULL, 0, kev, sizeof(kev) / sizeof(kev[0]), 0, &to);
+    if (r != 0) {
       fprintf(stderr, "==%s[%d]%s()==kevent64 failed\n", basename(__FILE__), __LINE__, __func__);
       abort();
     }
-    timer_callback(SIGALRM); // just mock
+    timer_callback(SIGALRM);  // just mock
   }
 
   return NULL;
@@ -93,11 +90,13 @@ static void* timer_routine(void *arg) {
 
 int taosInitTimer(void (*callback)(int), int ms) {
   int r = 0;
-  timer_ms       = ms;
+  timer_kq = -1;
+  timer_stop = 0;
+  timer_ms = ms;
   timer_callback = callback;
 
   timer_kq = kqueue();
-  if (timer_kq==-1) {
+  if (timer_kq == -1) {
     fprintf(stderr, "==%s[%d]%s()==failed to create timer kq\n", basename(__FILE__), __LINE__, __func__);
     // since no caller of this func checks the return value for the moment
     abort();
@@ -144,10 +143,10 @@ static void taosDeleteTimer(void *tharg) {
   timer_delete(*pTimer);
 }
 
-static pthread_t timerThread;
-static timer_t         timerId;
+static pthread_t     timerThread;
+static timer_t       timerId;
 static volatile bool stopTimer = false;
-static void *taosProcessAlarmSignal(void *tharg) {
+static void *        taosProcessAlarmSignal(void *tharg) {
   // Block the signal
   sigset_t sigset;
   sigemptyset(&sigset);
@@ -159,18 +158,18 @@ static void *taosProcessAlarmSignal(void *tharg) {
 
   setThreadName("tmr");
 
-  #ifdef _ALPINE
-    sevent.sigev_notify = SIGEV_THREAD;
-    sevent.sigev_value.sival_int = syscall(__NR_gettid);
-  #else
-    sevent.sigev_notify = SIGEV_THREAD_ID;
-    sevent._sigev_un._tid = syscall(__NR_gettid);
-  #endif
-  
+#ifdef _ALPINE
+  sevent.sigev_notify = SIGEV_THREAD;
+  sevent.sigev_value.sival_int = syscall(__NR_gettid);
+#else
+  sevent.sigev_notify = SIGEV_THREAD_ID;
+  sevent._sigev_un._tid = syscall(__NR_gettid);
+#endif
+
   sevent.sigev_signo = SIGALRM;
 
   if (timer_create(CLOCK_REALTIME, &sevent, &timerId) == -1) {
-    //printf("Failed to create timer");
+    // printf("Failed to create timer");
   }
 
   pthread_cleanup_push(taosDeleteTimer, &timerId);
@@ -182,36 +181,37 @@ static void *taosProcessAlarmSignal(void *tharg) {
   ts.it_interval.tv_nsec = 1000000 * MSECONDS_PER_TICK;
 
   if (timer_settime(timerId, 0, &ts, NULL)) {
-    //printf("Failed to init timer");
+    // printf("Failed to init timer");
     return NULL;
   }
 
   int signo;
   while (!stopTimer) {
     if (sigwait(&sigset, &signo)) {
-      //printf("Failed to wait signal: number %d", signo);
+      // printf("Failed to wait signal: number %d", signo);
       continue;
     }
     /* //printf("Signal handling: number %d ......\n", signo); */
 
     callback(0);
   }
-  
+
   pthread_cleanup_pop(1);
 
   return NULL;
 }
 
 int taosInitTimer(void (*callback)(int), int ms) {
+  stopTimer = false;
   pthread_attr_t tattr;
   pthread_attr_init(&tattr);
   int code = pthread_create(&timerThread, &tattr, taosProcessAlarmSignal, callback);
   pthread_attr_destroy(&tattr);
   if (code != 0) {
-    //printf("failed to create timer thread");
+    // printf("failed to create timer thread");
     return -1;
   } else {
-    //printf("timer thread:0x%08" PRIx64 " is created", taosGetPthreadId(timerThread));
+    // printf("timer thread:0x%08" PRIx64 " is created", taosGetPthreadId(timerThread));
   }
 
   return 0;
@@ -220,7 +220,7 @@ int taosInitTimer(void (*callback)(int), int ms) {
 void taosUninitTimer() {
   stopTimer = true;
 
-  //printf("join timer thread:0x%08" PRIx64, taosGetPthreadId(timerThread));
+  // printf("join timer thread:0x%08" PRIx64, taosGetPthreadId(timerThread));
   pthread_join(timerThread, NULL);
 }
 
diff --git a/source/util/src/ttimer.c b/source/util/src/ttimer.c
index 1fdc2257d7..65101a5e07 100644
--- a/source/util/src/ttimer.c
+++ b/source/util/src/ttimer.c
@@ -13,19 +13,49 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "ttimer.h"
 #include "os.h"
+#include "taoserror.h"
 #include "tlog.h"
 #include "tsched.h"
-#include "ttimer.h"
 #include "tutil.h"
-#include "taoserror.h"
 
-#define tmrFatal(...) { if (tmrDebugFlag & DEBUG_FATAL) { taosPrintLog("TMR FATAL ", tmrDebugFlag, __VA_ARGS__); }}
-#define tmrError(...) { if (tmrDebugFlag & DEBUG_ERROR) { taosPrintLog("TMR ERROR ", tmrDebugFlag, __VA_ARGS__); }}
-#define tmrWarn(...)  { if (tmrDebugFlag & DEBUG_WARN)  { taosPrintLog("TMR WARN ", tmrDebugFlag, __VA_ARGS__); }}
-#define tmrInfo(...)  { if (tmrDebugFlag & DEBUG_INFO)  { taosPrintLog("TMR ", tmrDebugFlag, __VA_ARGS__); }}
-#define tmrDebug(...) { if (tmrDebugFlag & DEBUG_DEBUG) { taosPrintLog("TMR ", tmrDebugFlag, __VA_ARGS__); }}
-#define tmrTrace(...) { if (tmrDebugFlag & DEBUG_TRACE) { taosPrintLog("TMR ", tmrDebugFlag, __VA_ARGS__); }}
+#define tmrFatal(...)                                        \
+  {                                                          \
+    if (tmrDebugFlag & DEBUG_FATAL) {                        \
+      taosPrintLog("TMR FATAL ", tmrDebugFlag, __VA_ARGS__); \
+    }                                                        \
+  }
+#define tmrError(...)                                        \
+  {                                                          \
+    if (tmrDebugFlag & DEBUG_ERROR) {                        \
+      taosPrintLog("TMR ERROR ", tmrDebugFlag, __VA_ARGS__); \
+    }                                                        \
+  }
+#define tmrWarn(...)                                        \
+  {                                                         \
+    if (tmrDebugFlag & DEBUG_WARN) {                        \
+      taosPrintLog("TMR WARN ", tmrDebugFlag, __VA_ARGS__); \
+    }                                                       \
+  }
+#define tmrInfo(...)                                   \
+  {                                                    \
+    if (tmrDebugFlag & DEBUG_INFO) {                   \
+      taosPrintLog("TMR ", tmrDebugFlag, __VA_ARGS__); \
+    }                                                  \
+  }
+#define tmrDebug(...)                                  \
+  {                                                    \
+    if (tmrDebugFlag & DEBUG_DEBUG) {                  \
+      taosPrintLog("TMR ", tmrDebugFlag, __VA_ARGS__); \
+    }                                                  \
+  }
+#define tmrTrace(...)                                  \
+  {                                                    \
+    if (tmrDebugFlag & DEBUG_TRACE) {                  \
+      taosPrintLog("TMR ", tmrDebugFlag, __VA_ARGS__); \
+    }                                                  \
+  }
 
 #define TIMER_STATE_WAITING 0
 #define TIMER_STATE_EXPIRED 1
@@ -81,7 +111,7 @@ typedef struct time_wheel_t {
   tmr_obj_t**     slots;
 } time_wheel_t;
 
-int32_t tmrDebugFlag = 131;
+int32_t  tmrDebugFlag = 131;
 uint32_t tsMaxTmrCtrl = 512;
 
 static pthread_once_t  tmrModuleInit = PTHREAD_ONCE_INIT;
@@ -91,7 +121,7 @@ static tmr_ctrl_t*     unusedTmrCtrl = NULL;
 static void*           tmrQhandle;
 static int             numOfTmrCtrl = 0;
 
-int taosTmrThreads = 1;
+int              taosTmrThreads = 1;
 static uintptr_t nextTimerId = 0;
 
 static time_wheel_t wheels[] = {
@@ -119,7 +149,7 @@ static void timerDecRef(tmr_obj_t* timer) {
 
 static void lockTimerList(timer_list_t* list) {
   int64_t tid = taosGetSelfPthreadId();
-  int       i = 0;
+  int     i = 0;
   while (atomic_val_compare_exchange_64(&(list->lockedBy), 0, tid) != 0) {
     if (++i % 1000 == 0) {
       sched_yield();
@@ -276,11 +306,11 @@ static void addToExpired(tmr_obj_t* head) {
   const char* fmt = "%s adding expired timer[id=%" PRIuPTR ", fp=%p, param=%p] to queue.";
 
   while (head != NULL) {
-    uintptr_t id = head->id;
+    uintptr_t  id = head->id;
     tmr_obj_t* next = head->next;
     tmrDebug(fmt, head->ctrl->label, id, head->fp, head->param);
 
-    SSchedMsg  schedMsg;
+    SSchedMsg schedMsg;
     schedMsg.fp = NULL;
     schedMsg.tfp = processExpiredTimer;
     schedMsg.msg = NULL;
@@ -491,6 +521,8 @@ static void taosTmrModuleInit(void) {
     return;
   }
 
+  memset(&timerMap, 0, sizeof(timerMap));
+
   for (uint32_t i = 0; i < tsMaxTmrCtrl - 1; ++i) {
     tmr_ctrl_t* ctrl = tmrCtrls + i;
     ctrl->next = ctrl + 1;
@@ -570,7 +602,8 @@ void taosTmrCleanUp(void* handle) {
   unusedTmrCtrl = ctrl;
   pthread_mutex_unlock(&tmrCtrlMutex);
 
-  if (numOfTmrCtrl <=0) {
+  tmrDebug("time controller's tmr ctrl size:  %d", numOfTmrCtrl);
+  if (numOfTmrCtrl <= 0) {
     taosUninitTimer();
 
     taosCleanUpScheduler(tmrQhandle);
@@ -585,7 +618,7 @@ void taosTmrCleanUp(void* handle) {
 
     for (size_t i = 0; i < timerMap.size; i++) {
       timer_list_t* list = timerMap.slots + i;
-      tmr_obj_t* t = list->timers;
+      tmr_obj_t*    t = list->timers;
       while (t != NULL) {
         tmr_obj_t* next = t->mnext;
         free(t);
@@ -595,6 +628,8 @@ void taosTmrCleanUp(void* handle) {
     free(timerMap.slots);
     free(tmrCtrls);
 
-    tmrDebug("timer module is cleaned up");
+    tmrCtrls = NULL;
+    unusedTmrCtrl = NULL;
+    tmrModuleInit = PTHREAD_ONCE_INIT;  // to support restart
   }
 }

From 7ee6657cf72ec203281d409580ebc7709339bcb7 Mon Sep 17 00:00:00 2001
From: Liu Jicong <liujicong@qq.com>
Date: Mon, 21 Feb 2022 10:48:23 +0800
Subject: [PATCH 04/12] extract convert to set msg

---
 include/util/tdef.h                 | 518 ++++++++++++++--------------
 source/client/src/tmq.c             |   6 +-
 source/common/src/tmsg.c            |   2 +
 source/dnode/vnode/inc/vnode.h      |   6 +-
 source/dnode/vnode/src/tq/tqRead.c  |  33 +-
 source/libs/executor/src/executor.c |  11 +-
 6 files changed, 296 insertions(+), 280 deletions(-)

diff --git a/include/util/tdef.h b/include/util/tdef.h
index 9b18c2dfb8..c46469a8c2 100644
--- a/include/util/tdef.h
+++ b/include/util/tdef.h
@@ -24,369 +24,367 @@ extern "C" {
 
 #define TSDB__packed
 
-#define TSKEY int64_t
-#define TSKEY_MIN INT64_MIN
-#define TSKEY_MAX (INT64_MAX - 1)
+#define TSKEY             int64_t
+#define TSKEY_MIN         INT64_MIN
+#define TSKEY_MAX         (INT64_MAX - 1)
 #define TSKEY_INITIAL_VAL TSKEY_MIN
 
 // Bytes for each type.
 extern const int32_t TYPE_BYTES[15];
 
 // TODO: replace and remove code below
-#define CHAR_BYTES              sizeof(char)
-#define SHORT_BYTES             sizeof(int16_t)
-#define INT_BYTES               sizeof(int32_t)
-#define LONG_BYTES              sizeof(int64_t)
-#define FLOAT_BYTES             sizeof(float)
-#define DOUBLE_BYTES            sizeof(double)
-#define POINTER_BYTES           sizeof(void *)  // 8 by default  assert(sizeof(ptrdiff_t) == sizseof(void*)
-#define TSDB_KEYSIZE            sizeof(TSKEY)
-#define TSDB_NCHAR_SIZE         sizeof(int32_t)
+#define CHAR_BYTES      sizeof(char)
+#define SHORT_BYTES     sizeof(int16_t)
+#define INT_BYTES       sizeof(int32_t)
+#define LONG_BYTES      sizeof(int64_t)
+#define FLOAT_BYTES     sizeof(float)
+#define DOUBLE_BYTES    sizeof(double)
+#define POINTER_BYTES   sizeof(void *)  // 8 by default  assert(sizeof(ptrdiff_t) == sizseof(void*)
+#define TSDB_KEYSIZE    sizeof(TSKEY)
+#define TSDB_NCHAR_SIZE sizeof(int32_t)
 
 // NULL definition
-#define TSDB_DATA_BOOL_NULL             0x02
-#define TSDB_DATA_TINYINT_NULL          0x80
-#define TSDB_DATA_SMALLINT_NULL         0x8000
-#define TSDB_DATA_INT_NULL              0x80000000L
-#define TSDB_DATA_BIGINT_NULL           0x8000000000000000L
-#define TSDB_DATA_TIMESTAMP_NULL        TSDB_DATA_BIGINT_NULL
+#define TSDB_DATA_BOOL_NULL      0x02
+#define TSDB_DATA_TINYINT_NULL   0x80
+#define TSDB_DATA_SMALLINT_NULL  0x8000
+#define TSDB_DATA_INT_NULL       0x80000000L
+#define TSDB_DATA_BIGINT_NULL    0x8000000000000000L
+#define TSDB_DATA_TIMESTAMP_NULL TSDB_DATA_BIGINT_NULL
 
-#define TSDB_DATA_FLOAT_NULL            0x7FF00000              // it is an NAN
-#define TSDB_DATA_DOUBLE_NULL           0x7FFFFF0000000000L     // an NAN
-#define TSDB_DATA_NCHAR_NULL            0xFFFFFFFF
-#define TSDB_DATA_BINARY_NULL           0xFF
+#define TSDB_DATA_FLOAT_NULL  0x7FF00000           // it is an NAN
+#define TSDB_DATA_DOUBLE_NULL 0x7FFFFF0000000000L  // an NAN
+#define TSDB_DATA_NCHAR_NULL  0xFFFFFFFF
+#define TSDB_DATA_BINARY_NULL 0xFF
 
-#define TSDB_DATA_UTINYINT_NULL         0xFF
-#define TSDB_DATA_USMALLINT_NULL        0xFFFF
-#define TSDB_DATA_UINT_NULL             0xFFFFFFFF
-#define TSDB_DATA_UBIGINT_NULL          0xFFFFFFFFFFFFFFFFL
+#define TSDB_DATA_UTINYINT_NULL  0xFF
+#define TSDB_DATA_USMALLINT_NULL 0xFFFF
+#define TSDB_DATA_UINT_NULL      0xFFFFFFFF
+#define TSDB_DATA_UBIGINT_NULL   0xFFFFFFFFFFFFFFFFL
 
-#define TSDB_DATA_NULL_STR              "NULL"
-#define TSDB_DATA_NULL_STR_L            "null"
+#define TSDB_DATA_NULL_STR   "NULL"
+#define TSDB_DATA_NULL_STR_L "null"
 
-#define TSDB_NETTEST_USER               "nettestinternal"
-#define TSDB_DEFAULT_USER               "root"
+#define TSDB_NETTEST_USER "nettestinternal"
+#define TSDB_DEFAULT_USER "root"
 #ifdef _TD_POWER_
-#define TSDB_DEFAULT_PASS               "powerdb"
+#define TSDB_DEFAULT_PASS "powerdb"
 #elif (_TD_TQ_ == true)
-#define TSDB_DEFAULT_PASS               "tqueue"
+#define TSDB_DEFAULT_PASS "tqueue"
 #elif (_TD_PRO_ == true)
-#define TSDB_DEFAULT_PASS               "prodb"
+#define TSDB_DEFAULT_PASS "prodb"
 #else
-#define TSDB_DEFAULT_PASS               "taosdata"
+#define TSDB_DEFAULT_PASS "taosdata"
 #endif
 
-#define SHELL_MAX_PASSWORD_LEN          20
+#define SHELL_MAX_PASSWORD_LEN 20
 
-#define TSDB_TRUE   1
-#define TSDB_FALSE  0
-#define TSDB_OK     0
+#define TSDB_TRUE  1
+#define TSDB_FALSE 0
+#define TSDB_OK    0
 #define TSDB_ERR   -1
 
 #define TS_PATH_DELIMITER "."
 #define TS_ESCAPE_CHAR    '`'
 
-#define TSDB_TIME_PRECISION_MILLI      0
-#define TSDB_TIME_PRECISION_MICRO      1
-#define TSDB_TIME_PRECISION_NANO       2
+#define TSDB_TIME_PRECISION_MILLI 0
+#define TSDB_TIME_PRECISION_MICRO 1
+#define TSDB_TIME_PRECISION_NANO  2
 
 #define TSDB_TIME_PRECISION_MILLI_STR "ms"
 #define TSDB_TIME_PRECISION_MICRO_STR "us"
 #define TSDB_TIME_PRECISION_NANO_STR  "ns"
 
-#define TSDB_TICK_PER_SECOND(precision) ((int64_t)((precision)==TSDB_TIME_PRECISION_MILLI ? 1e3L : ((precision)==TSDB_TIME_PRECISION_MICRO ? 1e6L : 1e9L)))
+#define TSDB_TICK_PER_SECOND(precision)                      \
+  ((int64_t)((precision) == TSDB_TIME_PRECISION_MILLI ? 1e3L \
+                                                      : ((precision) == TSDB_TIME_PRECISION_MICRO ? 1e6L : 1e9L)))
 
 #define T_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
-#define T_APPEND_MEMBER(dst, ptr, type, member) \
-do {\
-  memcpy((void *)(dst), (void *)(&((ptr)->member)), T_MEMBER_SIZE(type, member));\
-  dst = (void *)((char *)(dst) + T_MEMBER_SIZE(type, member));\
-} while(0)
-#define T_READ_MEMBER(src, type, target) \
-do { \
-  (target) = *(type *)(src); \
-  (src) = (void *)((char *)src + sizeof(type));\
-} while(0)
-
+#define T_APPEND_MEMBER(dst, ptr, type, member)                                     \
+  do {                                                                              \
+    memcpy((void *)(dst), (void *)(&((ptr)->member)), T_MEMBER_SIZE(type, member)); \
+    dst = (void *)((char *)(dst) + T_MEMBER_SIZE(type, member));                    \
+  } while (0)
+#define T_READ_MEMBER(src, type, target)          \
+  do {                                            \
+    (target) = *(type *)(src);                    \
+    (src) = (void *)((char *)src + sizeof(type)); \
+  } while (0)
 
 // TODO: check if below is necessary
-#define TSDB_RELATION_INVALID     0
-#define TSDB_RELATION_LESS        1
-#define TSDB_RELATION_GREATER     2
-#define TSDB_RELATION_EQUAL       3
-#define TSDB_RELATION_LESS_EQUAL  4
+#define TSDB_RELATION_INVALID       0
+#define TSDB_RELATION_LESS          1
+#define TSDB_RELATION_GREATER       2
+#define TSDB_RELATION_EQUAL         3
+#define TSDB_RELATION_LESS_EQUAL    4
 #define TSDB_RELATION_GREATER_EQUAL 5
-#define TSDB_RELATION_NOT_EQUAL   6
-#define TSDB_RELATION_LIKE        7
-#define TSDB_RELATION_ISNULL      8
-#define TSDB_RELATION_NOTNULL     9
-#define TSDB_RELATION_IN          10
+#define TSDB_RELATION_NOT_EQUAL     6
+#define TSDB_RELATION_LIKE          7
+#define TSDB_RELATION_ISNULL        8
+#define TSDB_RELATION_NOTNULL       9
+#define TSDB_RELATION_IN            10
 
-#define TSDB_RELATION_AND         11
-#define TSDB_RELATION_OR          12
-#define TSDB_RELATION_NOT         13
+#define TSDB_RELATION_AND 11
+#define TSDB_RELATION_OR  12
+#define TSDB_RELATION_NOT 13
 
-#define TSDB_RELATION_MATCH       14
-#define TSDB_RELATION_NMATCH      15
+#define TSDB_RELATION_MATCH  14
+#define TSDB_RELATION_NMATCH 15
 
-#define TSDB_BINARY_OP_ADD        4000
-#define TSDB_BINARY_OP_SUBTRACT   4001
-#define TSDB_BINARY_OP_MULTIPLY   4002
-#define TSDB_BINARY_OP_DIVIDE     4003
-#define TSDB_BINARY_OP_REMAINDER  4004
-#define TSDB_BINARY_OP_CONCAT     4005
+#define TSDB_BINARY_OP_ADD       4000
+#define TSDB_BINARY_OP_SUBTRACT  4001
+#define TSDB_BINARY_OP_MULTIPLY  4002
+#define TSDB_BINARY_OP_DIVIDE    4003
+#define TSDB_BINARY_OP_REMAINDER 4004
+#define TSDB_BINARY_OP_CONCAT    4005
 
-#define FUNCTION_CEIL        4500
-#define FUNCTION_FLOOR       4501
-#define FUNCTION_ABS         4502
-#define FUNCTION_ROUND       4503
+#define FUNCTION_CEIL  4500
+#define FUNCTION_FLOOR 4501
+#define FUNCTION_ABS   4502
+#define FUNCTION_ROUND 4503
 
-#define FUNCTION_LENGTH      4800
-#define FUNCTION_CONCAT      4801
-#define FUNCTION_LTRIM       4802
-#define FUNCTION_RTRIM       4803
+#define FUNCTION_LENGTH 4800
+#define FUNCTION_CONCAT 4801
+#define FUNCTION_LTRIM  4802
+#define FUNCTION_RTRIM  4803
 
-#define IS_RELATION_OPTR(op) (((op) >= TSDB_RELATION_LESS) && ((op) < TSDB_RELATION_IN))
+#define IS_RELATION_OPTR(op)   (((op) >= TSDB_RELATION_LESS) && ((op) < TSDB_RELATION_IN))
 #define IS_ARITHMETIC_OPTR(op) (((op) >= TSDB_BINARY_OP_ADD) && ((op) <= TSDB_BINARY_OP_REMAINDER))
 
-#define TSDB_NAME_DELIMITER_LEN   1
+#define TSDB_NAME_DELIMITER_LEN 1
 
-#define TSDB_UNI_LEN              24
-#define TSDB_USER_LEN             TSDB_UNI_LEN
+#define TSDB_UNI_LEN  24
+#define TSDB_USER_LEN TSDB_UNI_LEN
 
 // ACCOUNT is a 32 bit positive integer
 // this is the length of its string representation, including the terminator zero
-#define TSDB_ACCT_ID_LEN          11
+#define TSDB_ACCT_ID_LEN 11
 
-#define TSDB_MAX_COLUMNS          4096
-#define TSDB_MIN_COLUMNS          2       //PRIMARY COLUMN(timestamp) + other columns
+#define TSDB_MAX_COLUMNS 4096
+#define TSDB_MIN_COLUMNS 2  // PRIMARY COLUMN(timestamp) + other columns
 
-#define TSDB_NODE_NAME_LEN        64
-#define TSDB_TABLE_NAME_LEN       193     // it is a null-terminated string
-#define TSDB_TOPIC_NAME_LEN       193     // it is a null-terminated string
-#define TSDB_DB_NAME_LEN          65
-#define TSDB_DB_FNAME_LEN        (TSDB_ACCT_ID_LEN + TSDB_DB_NAME_LEN + TSDB_NAME_DELIMITER_LEN)
+#define TSDB_NODE_NAME_LEN  64
+#define TSDB_TABLE_NAME_LEN 193  // it is a null-terminated string
+#define TSDB_TOPIC_NAME_LEN 193  // it is a null-terminated string
+#define TSDB_DB_NAME_LEN    65
+#define TSDB_DB_FNAME_LEN   (TSDB_ACCT_ID_LEN + TSDB_DB_NAME_LEN + TSDB_NAME_DELIMITER_LEN)
 
-#define TSDB_FUNC_NAME_LEN        65
-#define TSDB_FUNC_COMMENT_LEN     4096
-#define TSDB_FUNC_CODE_LEN        (65535 - 512)
-#define TSDB_FUNC_BUF_SIZE        512
-#define TSDB_FUNC_TYPE_SCALAR     1
-#define TSDB_FUNC_TYPE_AGGREGATE  2
-#define TSDB_FUNC_MAX_RETRIEVE    1024
+#define TSDB_FUNC_NAME_LEN       65
+#define TSDB_FUNC_COMMENT_LEN    4096
+#define TSDB_FUNC_CODE_LEN       (65535 - 512)
+#define TSDB_FUNC_BUF_SIZE       512
+#define TSDB_FUNC_TYPE_SCALAR    1
+#define TSDB_FUNC_TYPE_AGGREGATE 2
+#define TSDB_FUNC_MAX_RETRIEVE   1024
 
-#define TSDB_TYPE_STR_MAX_LEN     32
-#define TSDB_TABLE_FNAME_LEN      (TSDB_DB_FNAME_LEN + TSDB_TABLE_NAME_LEN + TSDB_NAME_DELIMITER_LEN)
-#define TSDB_TOPIC_FNAME_LEN      TSDB_TABLE_FNAME_LEN
-#define TSDB_CONSUMER_GROUP_LEN   192
-#define TSDB_SUBSCRIBE_KEY_LEN    (TSDB_CONSUMER_GROUP_LEN + TSDB_TOPIC_FNAME_LEN + 2)
-#define TSDB_COL_NAME_LEN         65
-#define TSDB_MAX_SAVED_SQL_LEN    TSDB_MAX_COLUMNS * 64
-#define TSDB_MAX_SQL_LEN          TSDB_PAYLOAD_SIZE
-#define TSDB_MAX_SQL_SHOW_LEN     1024
-#define TSDB_MAX_ALLOWED_SQL_LEN  (1*1024*1024u)          // sql length should be less than 1mb
+#define TSDB_TYPE_STR_MAX_LEN    32
+#define TSDB_TABLE_FNAME_LEN     (TSDB_DB_FNAME_LEN + TSDB_TABLE_NAME_LEN + TSDB_NAME_DELIMITER_LEN)
+#define TSDB_TOPIC_FNAME_LEN     TSDB_TABLE_FNAME_LEN
+#define TSDB_CONSUMER_GROUP_LEN  192
+#define TSDB_SUBSCRIBE_KEY_LEN   (TSDB_CONSUMER_GROUP_LEN + TSDB_TOPIC_FNAME_LEN + 2)
+#define TSDB_COL_NAME_LEN        65
+#define TSDB_MAX_SAVED_SQL_LEN   TSDB_MAX_COLUMNS * 64
+#define TSDB_MAX_SQL_LEN         TSDB_PAYLOAD_SIZE
+#define TSDB_MAX_SQL_SHOW_LEN    1024
+#define TSDB_MAX_ALLOWED_SQL_LEN (1 * 1024 * 1024u)  // sql length should be less than 1mb
 
-#define TSDB_APP_NAME_LEN         TSDB_UNI_LEN
-#define TSDB_STB_COMMENT_LEN      1024
-  /**
-   *  In some scenarios uint16_t (0~65535) is used to store the row len.
-   *  - Firstly, we use 65531(65535 - 4), as the SDataRow/SKVRow contains 4 bits header.
-   *  - Secondly, if all cols are VarDataT type except primary key, we need 4 bits to store the offset, thus
-   *    the final value is 65531-(4096-1)*4 = 49151.
-   */
-#define TSDB_MAX_BYTES_PER_ROW    49151
-#define TSDB_MAX_TAGS_LEN         16384
-#define TSDB_MAX_TAGS             128
-#define TSDB_MAX_TAG_CONDITIONS   1024
+#define TSDB_APP_NAME_LEN    TSDB_UNI_LEN
+#define TSDB_STB_COMMENT_LEN 1024
+/**
+ *  In some scenarios uint16_t (0~65535) is used to store the row len.
+ *  - Firstly, we use 65531(65535 - 4), as the SDataRow/SKVRow contains 4 bits header.
+ *  - Secondly, if all cols are VarDataT type except primary key, we need 4 bits to store the offset, thus
+ *    the final value is 65531-(4096-1)*4 = 49151.
+ */
+#define TSDB_MAX_BYTES_PER_ROW  49151
+#define TSDB_MAX_TAGS_LEN       16384
+#define TSDB_MAX_TAGS           128
+#define TSDB_MAX_TAG_CONDITIONS 1024
 
-#define TSDB_AUTH_LEN             16
-#define TSDB_PASSWORD_LEN         32
-#define TSDB_USET_PASSWORD_LEN    129
-#define TSDB_VERSION_LEN          12
-#define TSDB_LABEL_LEN            8 
+#define TSDB_AUTH_LEN          16
+#define TSDB_PASSWORD_LEN      32
+#define TSDB_USET_PASSWORD_LEN 129
+#define TSDB_VERSION_LEN       12
+#define TSDB_LABEL_LEN         8
 
-#define TSDB_CLUSTER_ID_LEN       40
-#define TSDB_FQDN_LEN             128
-#define TSDB_EP_LEN               (TSDB_FQDN_LEN + 6)
-#define TSDB_IPv4ADDR_LEN      	  16
-#define TSDB_FILENAME_LEN         128
-#define TSDB_SHOW_SQL_LEN         512
-#define TSDB_SHOW_SUBQUERY_LEN    1000
-#define TSDB_SLOW_QUERY_SQL_LEN   512
+#define TSDB_CLUSTER_ID_LEN     40
+#define TSDB_FQDN_LEN           128
+#define TSDB_EP_LEN             (TSDB_FQDN_LEN + 6)
+#define TSDB_IPv4ADDR_LEN       16
+#define TSDB_FILENAME_LEN       128
+#define TSDB_SHOW_SQL_LEN       512
+#define TSDB_SHOW_SUBQUERY_LEN  1000
+#define TSDB_SLOW_QUERY_SQL_LEN 512
 
-#define TSDB_TRANS_STAGE_LEN      12
-#define TSDB_TRANS_DESC_LEN       16
-#define TSDB_TRANS_ERROR_LEN      128
+#define TSDB_TRANS_STAGE_LEN 12
+#define TSDB_TRANS_DESC_LEN  16
+#define TSDB_TRANS_ERROR_LEN 128
 
-#define TSDB_STEP_NAME_LEN        32
-#define TSDB_STEP_DESC_LEN        128
+#define TSDB_STEP_NAME_LEN 32
+#define TSDB_STEP_DESC_LEN 128
 
-#define TSDB_ERROR_MSG_LEN        1024
-#define TSDB_DNODE_CONFIG_LEN     128
-#define TSDB_DNODE_VALUE_LEN      256
+#define TSDB_ERROR_MSG_LEN    1024
+#define TSDB_DNODE_CONFIG_LEN 128
+#define TSDB_DNODE_VALUE_LEN  256
 
-#define TSDB_MQTT_HOSTNAME_LEN    64
-#define TSDB_MQTT_PORT_LEN        8
-#define TSDB_MQTT_USER_LEN        24
-#define TSDB_MQTT_PASS_LEN        24
-#define TSDB_MQTT_TOPIC_LEN       64
-#define TSDB_MQTT_CLIENT_ID_LEN   32
+#define TSDB_MQTT_HOSTNAME_LEN  64
+#define TSDB_MQTT_PORT_LEN      8
+#define TSDB_MQTT_USER_LEN      24
+#define TSDB_MQTT_PASS_LEN      24
+#define TSDB_MQTT_TOPIC_LEN     64
+#define TSDB_MQTT_CLIENT_ID_LEN 32
 
-#define TSDB_DB_TYPE_DEFAULT      0
-#define TSDB_DB_TYPE_TOPIC        1
+#define TSDB_DB_TYPE_DEFAULT 0
+#define TSDB_DB_TYPE_TOPIC   1
 
-#define TSDB_DEFAULT_PKT_SIZE     65480  //same as RPC_MAX_UDP_SIZE
+#define TSDB_DEFAULT_PKT_SIZE 65480  // same as RPC_MAX_UDP_SIZE
 
 #define TSDB_PAYLOAD_SIZE         TSDB_DEFAULT_PKT_SIZE
-#define TSDB_DEFAULT_PAYLOAD_SIZE 5120   // default payload size, greater than PATH_MAX value
-#define TSDB_EXTRA_PAYLOAD_SIZE   128    // extra bytes for auth
+#define TSDB_DEFAULT_PAYLOAD_SIZE 5120  // default payload size, greater than PATH_MAX value
+#define TSDB_EXTRA_PAYLOAD_SIZE   128   // extra bytes for auth
 #define TSDB_CQ_SQL_SIZE          1024
 #define TSDB_MIN_VNODES           16
 #define TSDB_MAX_VNODES           512
 #define TSDB_MIN_VNODES_PER_DB    1
 #define TSDB_MAX_VNODES_PER_DB    4096
-#define TSDB_DEFAULT_VN_PER_DB    2 
+#define TSDB_DEFAULT_VN_PER_DB    2
 
-#define TSDB_DNODE_ROLE_ANY       0
-#define TSDB_DNODE_ROLE_MGMT      1
-#define TSDB_DNODE_ROLE_VNODE     2
+#define TSDB_DNODE_ROLE_ANY   0
+#define TSDB_DNODE_ROLE_MGMT  1
+#define TSDB_DNODE_ROLE_VNODE 2
 
-#define TSDB_MAX_REPLICA          5
+#define TSDB_MAX_REPLICA 5
 
-#define TSDB_TBNAME_COLUMN_INDEX        (-1)
-#define TSDB_UD_COLUMN_INDEX            (-1000)
-#define TSDB_RES_COL_ID                 (-5000)
+#define TSDB_TBNAME_COLUMN_INDEX (-1)
+#define TSDB_UD_COLUMN_INDEX     (-1000)
+#define TSDB_RES_COL_ID          (-5000)
 
-#define TSDB_MULTI_TABLEMETA_MAX_NUM    100000  // maximum batch size allowed to load table meta
-     
-#define TSDB_MIN_CACHE_BLOCK_SIZE       1
-#define TSDB_MAX_CACHE_BLOCK_SIZE       128     // 128MB for each vnode
-#define TSDB_DEFAULT_CACHE_BLOCK_SIZE   16
+#define TSDB_MULTI_TABLEMETA_MAX_NUM 100000  // maximum batch size allowed to load table meta
 
-#define TSDB_MIN_TOTAL_BLOCKS           3
-#define TSDB_MAX_TOTAL_BLOCKS           10000
-#define TSDB_DEFAULT_TOTAL_BLOCKS       6
+#define TSDB_MIN_CACHE_BLOCK_SIZE     1
+#define TSDB_MAX_CACHE_BLOCK_SIZE     128  // 128MB for each vnode
+#define TSDB_DEFAULT_CACHE_BLOCK_SIZE 16
 
-#define TSDB_MIN_DAYS_PER_FILE          1
-#define TSDB_MAX_DAYS_PER_FILE          3650 
-#define TSDB_DEFAULT_DAYS_PER_FILE      10
+#define TSDB_MIN_TOTAL_BLOCKS     3
+#define TSDB_MAX_TOTAL_BLOCKS     10000
+#define TSDB_DEFAULT_TOTAL_BLOCKS 6
 
-#define TSDB_MIN_KEEP                   1        // data in db to be reserved.
-#define TSDB_MAX_KEEP                   365000   // data in db to be reserved.
-#define TSDB_DEFAULT_KEEP               3650     // ten years
+#define TSDB_MIN_DAYS_PER_FILE     1
+#define TSDB_MAX_DAYS_PER_FILE     3650
+#define TSDB_DEFAULT_DAYS_PER_FILE 10
 
-#define TSDB_MIN_MIN_ROW_FBLOCK         10
-#define TSDB_MAX_MIN_ROW_FBLOCK         1000
-#define TSDB_DEFAULT_MIN_ROW_FBLOCK     100
+#define TSDB_MIN_KEEP     1       // data in db to be reserved.
+#define TSDB_MAX_KEEP     365000  // data in db to be reserved.
+#define TSDB_DEFAULT_KEEP 3650    // ten years
 
-#define TSDB_MIN_MAX_ROW_FBLOCK         200
-#define TSDB_MAX_MAX_ROW_FBLOCK         10000
-#define TSDB_DEFAULT_MAX_ROW_FBLOCK     4096
+#define TSDB_MIN_MIN_ROW_FBLOCK     10
+#define TSDB_MAX_MIN_ROW_FBLOCK     1000
+#define TSDB_DEFAULT_MIN_ROW_FBLOCK 100
 
-#define TSDB_MIN_COMMIT_TIME            30
-#define TSDB_MAX_COMMIT_TIME            40960
-#define TSDB_DEFAULT_COMMIT_TIME        3600
+#define TSDB_MIN_MAX_ROW_FBLOCK     200
+#define TSDB_MAX_MAX_ROW_FBLOCK     10000
+#define TSDB_DEFAULT_MAX_ROW_FBLOCK 4096
 
-#define TSDB_MIN_FSYNC_PERIOD           0
-#define TSDB_MAX_FSYNC_PERIOD           180000   // millisecond
-#define TSDB_DEFAULT_FSYNC_PERIOD       3000     // three second
+#define TSDB_MIN_COMMIT_TIME     30
+#define TSDB_MAX_COMMIT_TIME     40960
+#define TSDB_DEFAULT_COMMIT_TIME 3600
 
-#define TSDB_MIN_WAL_LEVEL              0
-#define TSDB_MAX_WAL_LEVEL              2
-#define TSDB_DEFAULT_WAL_LEVEL          1
+#define TSDB_MIN_FSYNC_PERIOD     0
+#define TSDB_MAX_FSYNC_PERIOD     180000  // millisecond
+#define TSDB_DEFAULT_FSYNC_PERIOD 3000    // three second
 
-#define TSDB_MIN_PRECISION              TSDB_TIME_PRECISION_MILLI
-#define TSDB_MAX_PRECISION              TSDB_TIME_PRECISION_NANO
-#define TSDB_DEFAULT_PRECISION          TSDB_TIME_PRECISION_MILLI
+#define TSDB_MIN_WAL_LEVEL     0
+#define TSDB_MAX_WAL_LEVEL     2
+#define TSDB_DEFAULT_WAL_LEVEL 1
 
-#define TSDB_MIN_COMP_LEVEL             0
-#define TSDB_MAX_COMP_LEVEL             2
-#define TSDB_DEFAULT_COMP_LEVEL         2
+#define TSDB_MIN_PRECISION     TSDB_TIME_PRECISION_MILLI
+#define TSDB_MAX_PRECISION     TSDB_TIME_PRECISION_NANO
+#define TSDB_DEFAULT_PRECISION TSDB_TIME_PRECISION_MILLI
 
-#define TSDB_MIN_DB_REPLICA_OPTION      1
-#define TSDB_MAX_DB_REPLICA_OPTION      3
-#define TSDB_DEFAULT_DB_REPLICA_OPTION  1
+#define TSDB_MIN_COMP_LEVEL     0
+#define TSDB_MAX_COMP_LEVEL     2
+#define TSDB_DEFAULT_COMP_LEVEL 2
 
-#define TSDB_MIN_DB_QUORUM_OPTION       1
-#define TSDB_MAX_DB_QUORUM_OPTION       2
-#define TSDB_DEFAULT_DB_QUORUM_OPTION   1
+#define TSDB_MIN_DB_REPLICA_OPTION     1
+#define TSDB_MAX_DB_REPLICA_OPTION     3
+#define TSDB_DEFAULT_DB_REPLICA_OPTION 1
 
-#define TSDB_MIN_DB_UPDATE              0
-#define TSDB_MAX_DB_UPDATE              2
-#define TSDB_DEFAULT_DB_UPDATE_OPTION   0
+#define TSDB_MIN_DB_QUORUM_OPTION     1
+#define TSDB_MAX_DB_QUORUM_OPTION     2
+#define TSDB_DEFAULT_DB_QUORUM_OPTION 1
 
-#define TSDB_MIN_DB_CACHE_LAST_ROW      0
-#define TSDB_MAX_DB_CACHE_LAST_ROW      3
-#define TSDB_DEFAULT_CACHE_LAST_ROW     0
+#define TSDB_MIN_DB_UPDATE            0
+#define TSDB_MAX_DB_UPDATE            2
+#define TSDB_DEFAULT_DB_UPDATE_OPTION 0
 
-#define TSDB_MAX_JOIN_TABLE_NUM         10
-#define TSDB_MAX_UNION_CLAUSE           5
+#define TSDB_MIN_DB_CACHE_LAST_ROW  0
+#define TSDB_MAX_DB_CACHE_LAST_ROW  3
+#define TSDB_DEFAULT_CACHE_LAST_ROW 0
 
-#define TSDB_MAX_FIELD_LEN              16384
-#define TSDB_MAX_BINARY_LEN            (TSDB_MAX_FIELD_LEN-TSDB_KEYSIZE) // keep 16384
-#define TSDB_MAX_NCHAR_LEN             (TSDB_MAX_FIELD_LEN-TSDB_KEYSIZE) // keep 16384
-#define PRIMARYKEY_TIMESTAMP_COL_ID     1
-#define COL_REACH_END(colId, maxColId)  ((colId) > (maxColId))
+#define TSDB_MAX_JOIN_TABLE_NUM 10
+#define TSDB_MAX_UNION_CLAUSE   5
 
-#define TSDB_MAX_RPC_THREADS            5
+#define TSDB_MAX_FIELD_LEN             16384
+#define TSDB_MAX_BINARY_LEN            (TSDB_MAX_FIELD_LEN - TSDB_KEYSIZE)  // keep 16384
+#define TSDB_MAX_NCHAR_LEN             (TSDB_MAX_FIELD_LEN - TSDB_KEYSIZE)  // keep 16384
+#define PRIMARYKEY_TIMESTAMP_COL_ID    1
+#define COL_REACH_END(colId, maxColId) ((colId) > (maxColId))
 
-#define TSDB_QUERY_TYPE_NON_TYPE        0x00u     // none type
-#define TSDB_QUERY_TYPE_FREE_RESOURCE   0x01u     // free qhandle at vnode
-
-
-#define TSDB_META_COMPACT_RATIO         0       // disable tsdb meta compact by default
+#define TSDB_MAX_RPC_THREADS 5
 
+#define TSDB_QUERY_TYPE_NON_TYPE      0x00u  // none type
+#define TSDB_QUERY_TYPE_FREE_RESOURCE 0x01u  // free qhandle at vnode
 
+#define TSDB_META_COMPACT_RATIO 0  // disable tsdb meta compact by default
 
 /*
  * 1. ordinary sub query for select * from super_table
  * 2. all sqlobj generated by createSubqueryObj with this flag
  */
-#define TSDB_QUERY_TYPE_SUBQUERY               0x02u
-#define TSDB_QUERY_TYPE_STABLE_SUBQUERY        0x04u     // two-stage subquery for super table
+#define TSDB_QUERY_TYPE_SUBQUERY        0x02u
+#define TSDB_QUERY_TYPE_STABLE_SUBQUERY 0x04u  // two-stage subquery for super table
 
-#define TSDB_QUERY_TYPE_TABLE_QUERY            0x08u    // query ordinary table; below only apply to client side
-#define TSDB_QUERY_TYPE_STABLE_QUERY           0x10u    // query on super table
-#define TSDB_QUERY_TYPE_JOIN_QUERY             0x20u    // join query
-#define TSDB_QUERY_TYPE_PROJECTION_QUERY       0x40u    // select *,columns... query
-#define TSDB_QUERY_TYPE_JOIN_SEC_STAGE         0x80u    // join sub query at the second stage
+#define TSDB_QUERY_TYPE_TABLE_QUERY      0x08u  // query ordinary table; below only apply to client side
+#define TSDB_QUERY_TYPE_STABLE_QUERY     0x10u  // query on super table
+#define TSDB_QUERY_TYPE_JOIN_QUERY       0x20u  // join query
+#define TSDB_QUERY_TYPE_PROJECTION_QUERY 0x40u  // select *,columns... query
+#define TSDB_QUERY_TYPE_JOIN_SEC_STAGE   0x80u  // join sub query at the second stage
 
-#define TSDB_QUERY_TYPE_TAG_FILTER_QUERY       0x400u
-#define TSDB_QUERY_TYPE_INSERT                 0x100u    // insert type
-#define TSDB_QUERY_TYPE_MULTITABLE_QUERY       0x200u
-#define TSDB_QUERY_TYPE_FILE_INSERT            0x400u    // insert data from file
-#define TSDB_QUERY_TYPE_STMT_INSERT            0x800u    // stmt insert type
-#define TSDB_QUERY_TYPE_NEST_SUBQUERY          0x1000u   // nested sub query
+#define TSDB_QUERY_TYPE_TAG_FILTER_QUERY 0x400u
+#define TSDB_QUERY_TYPE_INSERT           0x100u  // insert type
+#define TSDB_QUERY_TYPE_MULTITABLE_QUERY 0x200u
+#define TSDB_QUERY_TYPE_FILE_INSERT      0x400u   // insert data from file
+#define TSDB_QUERY_TYPE_STMT_INSERT      0x800u   // stmt insert type
+#define TSDB_QUERY_TYPE_NEST_SUBQUERY    0x1000u  // nested sub query
 
-#define TSDB_QUERY_HAS_TYPE(x, _type)          (((x) & (_type)) != 0)
-#define TSDB_QUERY_SET_TYPE(x, _type)          ((x) |= (_type))
-#define TSDB_QUERY_CLEAR_TYPE(x, _type)        ((x) &= (~_type))
-#define TSDB_QUERY_RESET_TYPE(x)               ((x) = TSDB_QUERY_TYPE_NON_TYPE)
+#define TSDB_QUERY_HAS_TYPE(x, _type)   (((x) & (_type)) != 0)
+#define TSDB_QUERY_SET_TYPE(x, _type)   ((x) |= (_type))
+#define TSDB_QUERY_CLEAR_TYPE(x, _type) ((x) &= (~_type))
+#define TSDB_QUERY_RESET_TYPE(x)        ((x) = TSDB_QUERY_TYPE_NON_TYPE)
 
-#define TSDB_ORDER_ASC                         1
-#define TSDB_ORDER_DESC                        2
-                                               
-#define TSDB_DEFAULT_CLUSTER_HASH_SIZE         1
-#define TSDB_DEFAULT_MNODES_HASH_SIZE          5
-#define TSDB_DEFAULT_DNODES_HASH_SIZE          10
-#define TSDB_DEFAULT_ACCOUNTS_HASH_SIZE        10
-#define TSDB_DEFAULT_USERS_HASH_SIZE           20
-#define TSDB_DEFAULT_DBS_HASH_SIZE             100
-#define TSDB_DEFAULT_VGROUPS_HASH_SIZE         100
-#define TSDB_DEFAULT_STABLES_HASH_SIZE         100
-#define TSDB_DEFAULT_CTABLES_HASH_SIZE         20000
+#define TSDB_ORDER_ASC  1
+#define TSDB_ORDER_DESC 2
 
-#define TSDB_MAX_WAL_SIZE    (1024*1024*3)
+#define TSDB_DEFAULT_CLUSTER_HASH_SIZE  1
+#define TSDB_DEFAULT_MNODES_HASH_SIZE   5
+#define TSDB_DEFAULT_DNODES_HASH_SIZE   10
+#define TSDB_DEFAULT_ACCOUNTS_HASH_SIZE 10
+#define TSDB_DEFAULT_USERS_HASH_SIZE    20
+#define TSDB_DEFAULT_DBS_HASH_SIZE      100
+#define TSDB_DEFAULT_VGROUPS_HASH_SIZE  100
+#define TSDB_DEFAULT_STABLES_HASH_SIZE  100
+#define TSDB_DEFAULT_CTABLES_HASH_SIZE  20000
 
-#define TSDB_ARB_DUMMY_TIME                    4765104000000 // 2121-01-01 00:00:00.000, :P
+#define TSDB_MAX_WAL_SIZE (1024 * 1024 * 3)
 
-#define TFS_MAX_TIERS 3
+#define TSDB_ARB_DUMMY_TIME 4765104000000  // 2121-01-01 00:00:00.000, :P
+
+#define TFS_MAX_TIERS          3
 #define TFS_MAX_DISKS_PER_TIER 16
-#define TFS_MAX_DISKS (TFS_MAX_TIERS * TFS_MAX_DISKS_PER_TIER)
-#define TFS_MIN_LEVEL 0
-#define TFS_MAX_LEVEL (TFS_MAX_TIERS - 1)
-#define TFS_PRIMARY_LEVEL 0
-#define TFS_PRIMARY_ID 0
+#define TFS_MAX_DISKS          (TFS_MAX_TIERS * TFS_MAX_DISKS_PER_TIER)
+#define TFS_MIN_LEVEL          0
+#define TFS_MAX_LEVEL          (TFS_MAX_TIERS - 1)
+#define TFS_PRIMARY_LEVEL      0
+#define TFS_PRIMARY_ID         0
 #define TFS_MIN_DISK_FREE_SIZE 50 * 1024 * 1024
 
 enum { TRANS_STAT_INIT = 0, TRANS_STAT_EXECUTING, TRANS_STAT_EXECUTED, TRANS_STAT_ROLLBACKING, TRANS_STAT_ROLLBACKED };
diff --git a/source/client/src/tmq.c b/source/client/src/tmq.c
index 9855a65b0b..229d3a9ec3 100644
--- a/source/client/src/tmq.c
+++ b/source/client/src/tmq.c
@@ -75,7 +75,7 @@ struct tmq_message_t {
   SMqConsumeRsp rsp;
 };
 
-typedef struct SMqClientVg {
+typedef struct {
   // statistics
   int64_t pollCnt;
   // offset
@@ -86,7 +86,7 @@ typedef struct SMqClientVg {
   SEpSet  epSet;
 } SMqClientVg;
 
-typedef struct SMqClientTopic {
+typedef struct {
   // subscribe info
   int32_t sqlLen;
   char*   sql;
@@ -779,11 +779,9 @@ tmq_message_t* tmq_consumer_poll(tmq_t* tmq, int64_t blocking_time) {
     param->pVg = pVg;
     tsem_init(&param->rspSem, 0, 0);
 
-
     SRequestObj* pRequest = createRequest(tmq->pTscObj, NULL, NULL, TDMT_VND_CONSUME);
     pRequest->body.requestMsg = (SDataBuf){.pData = pReq, .len = sizeof(SMqConsumeReq), .handle = NULL};
 
-
     SMsgSendInfo* sendInfo = buildMsgInfoImpl(pRequest);
     sendInfo->requestObjRefId = 0;
     sendInfo->param = param;
diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index ac46c0c48c..46feab7791 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -34,6 +34,7 @@ int32_t tInitSubmitMsgIter(SSubmitReq *pMsg, SSubmitMsgIter *pIter) {
   }
 
   pIter->totalLen = pMsg->length;
+  ASSERT(pIter->totalLen > 0);
   pIter->len = 0;
   pIter->pMsg = pMsg;
   if (pMsg->length <= sizeof(SSubmitReq)) {
@@ -52,6 +53,7 @@ int32_t tGetSubmitMsgNext(SSubmitMsgIter *pIter, SSubmitBlk **pPBlock) {
   } else {
     SSubmitBlk *pSubmitBlk = (SSubmitBlk *)POINTER_SHIFT(pIter->pMsg, pIter->len);
     pIter->len += (sizeof(SSubmitBlk) + pSubmitBlk->dataLen + pSubmitBlk->schemaLen);
+    ASSERT(pIter->len > 0);
   }
 
   if (pIter->len > pIter->totalLen) {
diff --git a/source/dnode/vnode/inc/vnode.h b/source/dnode/vnode/inc/vnode.h
index 1fb0b05f9e..3a06674e3c 100644
--- a/source/dnode/vnode/inc/vnode.h
+++ b/source/dnode/vnode/inc/vnode.h
@@ -226,9 +226,9 @@ static FORCE_INLINE int tqReadHandleSetTbUidList(STqReadHandle *pHandle, const S
   return 0;
 }
 
-void tqReadHandleSetMsg(STqReadHandle *pHandle, SSubmitReq *pMsg, int64_t ver);
-bool tqNextDataBlock(STqReadHandle *pHandle);
-int  tqRetrieveDataBlockInfo(STqReadHandle *pHandle, SDataBlockInfo *pBlockInfo);
+int32_t tqReadHandleSetMsg(STqReadHandle *pHandle, SSubmitReq *pMsg, int64_t ver);
+bool    tqNextDataBlock(STqReadHandle *pHandle);
+int     tqRetrieveDataBlockInfo(STqReadHandle *pHandle, SDataBlockInfo *pBlockInfo);
 // return SArray<SColumnInfoData>
 SArray *tqRetrieveDataBlock(STqReadHandle *pHandle);
 
diff --git a/source/dnode/vnode/src/tq/tqRead.c b/source/dnode/vnode/src/tq/tqRead.c
index e76d43becd..bfa811feec 100644
--- a/source/dnode/vnode/src/tq/tqRead.c
+++ b/source/dnode/vnode/src/tq/tqRead.c
@@ -31,13 +31,28 @@ STqReadHandle* tqInitSubmitMsgScanner(SMeta* pMeta) {
   return pReadHandle;
 }
 
-void tqReadHandleSetMsg(STqReadHandle* pReadHandle, SSubmitReq* pMsg, int64_t ver) {
+int32_t tqReadHandleSetMsg(STqReadHandle* pReadHandle, SSubmitReq* pMsg, int64_t ver) {
   pReadHandle->pMsg = pMsg;
   pMsg->length = htonl(pMsg->length);
   pMsg->numOfBlocks = htonl(pMsg->numOfBlocks);
-  tInitSubmitMsgIter(pMsg, &pReadHandle->msgIter);
+
+  if (tInitSubmitMsgIter(pMsg, &pReadHandle->msgIter) < 0) return -1;
+  while (true) {
+    if (tGetSubmitMsgNext(&pReadHandle->msgIter, &pReadHandle->pBlock) < 0) return -1;
+    if (pReadHandle->pBlock == NULL) break;
+
+    pReadHandle->pBlock->uid = htobe64(pReadHandle->pBlock->uid);
+    pReadHandle->pBlock->tid = htonl(pReadHandle->pBlock->tid);
+    pReadHandle->pBlock->sversion = htonl(pReadHandle->pBlock->sversion);
+    pReadHandle->pBlock->dataLen = htonl(pReadHandle->pBlock->dataLen);
+    pReadHandle->pBlock->schemaLen = htonl(pReadHandle->pBlock->schemaLen);
+    pReadHandle->pBlock->numOfRows = htons(pReadHandle->pBlock->numOfRows);
+  }
+
+  if (tInitSubmitMsgIter(pMsg, &pReadHandle->msgIter) < 0) return -1;
   pReadHandle->ver = ver;
   memset(&pReadHandle->blkIter, 0, sizeof(SSubmitBlkIter));
+  return 0;
 }
 
 bool tqNextDataBlock(STqReadHandle* pHandle) {
@@ -47,19 +62,19 @@ bool tqNextDataBlock(STqReadHandle* pHandle) {
     }
     if (pHandle->pBlock == NULL) return false;
 
-    pHandle->pBlock->uid = htobe64(pHandle->pBlock->uid);
+    /*pHandle->pBlock->uid = htobe64(pHandle->pBlock->uid);*/
     /*if (pHandle->tbUid == pHandle->pBlock->uid) {*/
     ASSERT(pHandle->tbIdHash);
     void* ret = taosHashGet(pHandle->tbIdHash, &pHandle->pBlock->uid, sizeof(int64_t));
     if (ret != NULL) {
       /*printf("retrieve one tb %ld\n", pHandle->pBlock->uid);*/
-      pHandle->pBlock->tid = htonl(pHandle->pBlock->tid);
-      pHandle->pBlock->sversion = htonl(pHandle->pBlock->sversion);
-      pHandle->pBlock->dataLen = htonl(pHandle->pBlock->dataLen);
-      pHandle->pBlock->schemaLen = htonl(pHandle->pBlock->schemaLen);
-      pHandle->pBlock->numOfRows = htons(pHandle->pBlock->numOfRows);
+      /*pHandle->pBlock->tid = htonl(pHandle->pBlock->tid);*/
+      /*pHandle->pBlock->sversion = htonl(pHandle->pBlock->sversion);*/
+      /*pHandle->pBlock->dataLen = htonl(pHandle->pBlock->dataLen);*/
+      /*pHandle->pBlock->schemaLen = htonl(pHandle->pBlock->schemaLen);*/
+      /*pHandle->pBlock->numOfRows = htons(pHandle->pBlock->numOfRows);*/
       return true;
-    } else {
+      /*} else {*/
       /*printf("skip one tb %ld\n", pHandle->pBlock->uid);*/
     }
   }
diff --git a/source/libs/executor/src/executor.c b/source/libs/executor/src/executor.c
index c47c83ba29..18485249b3 100644
--- a/source/libs/executor/src/executor.c
+++ b/source/libs/executor/src/executor.c
@@ -14,9 +14,9 @@
  */
 
 #include "executor.h"
-#include "tq.h"
 #include "executorimpl.h"
 #include "planner.h"
+#include "tq.h"
 
 static int32_t doSetStreamBlock(SOperatorInfo* pOperator, void* input, char* id) {
   ASSERT(pOperator != NULL);
@@ -34,7 +34,10 @@ static int32_t doSetStreamBlock(SOperatorInfo* pOperator, void* input, char* id)
     return doSetStreamBlock(pOperator->pDownstream[0], input, id);
   } else {
     SStreamBlockScanInfo* pInfo = pOperator->info;
-    tqReadHandleSetMsg(pInfo->readerHandle, input, 0);
+    if (tqReadHandleSetMsg(pInfo->readerHandle, input, 0) < 0) {
+      qError("submit msg error while set stream msg, %s" PRIx64, id);
+      return TSDB_CODE_QRY_APP_ERROR;
+    }
     return TSDB_CODE_SUCCESS;
   }
 }
@@ -48,9 +51,9 @@ int32_t qSetStreamInput(qTaskInfo_t tinfo, const void* input) {
     return TSDB_CODE_SUCCESS;
   }
 
-  SExecTaskInfo* pTaskInfo = (SExecTaskInfo*) tinfo;
+  SExecTaskInfo* pTaskInfo = (SExecTaskInfo*)tinfo;
 
-  int32_t code = doSetStreamBlock(pTaskInfo->pRoot, (void*) input, GET_TASKID(pTaskInfo));
+  int32_t code = doSetStreamBlock(pTaskInfo->pRoot, (void*)input, GET_TASKID(pTaskInfo));
   if (code != TSDB_CODE_SUCCESS) {
     qError("%s failed to set the stream block data", GET_TASKID(pTaskInfo));
   } else {

From bad804e38dba4e6b6fe08d439fecafa2a2570253 Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Mon, 21 Feb 2022 11:44:09 +0800
Subject: [PATCH 05/12] handle query crash

---
 source/libs/transport/src/transCli.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 4ed1cc2e73..a89b3d7139 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -137,7 +137,7 @@ static void clientHandleResp(SCliConn* conn) {
   rpcMsg.ahandle = pCtx->ahandle;
 
   if (rpcMsg.msgType == TDMT_VND_QUERY_RSP || rpcMsg.msgType == TDMT_VND_FETCH_RSP ||
-      rpcMsg.msgType == TDMT_VND_RES_READY) {
+      rpcMsg.msgType == TDMT_VND_RES_READY_RSP) {
     rpcMsg.handle = conn;
     conn->persist = 1;
     tDebug("client conn %p persist by app", conn);

From 6f555efeb1112d80c0928b3da619b4f078f74a12 Mon Sep 17 00:00:00 2001
From: Xiaoyu Wang <xiaoyuwang@taosdata.com>
Date: Mon, 21 Feb 2022 04:35:30 -0500
Subject: [PATCH 06/12] TD-13495 logic plan UT

---
 include/libs/nodes/nodes.h                  |   2 +-
 include/util/tjson.h                        |   2 +
 source/libs/nodes/src/nodesCloneFuncs.c     |  26 +-
 source/libs/nodes/src/nodesCodeFuncs.c      | 322 +++++++++++++++++++-
 source/libs/nodes/src/nodesUtilFuncs.c      |  19 +-
 source/libs/parser/src/parserImpl.c         |   8 +-
 source/libs/parser/test/mockCatalog.cpp     |   4 +-
 source/libs/planner/src/plannerImpl.c       | 149 ++++++---
 source/libs/planner/test/newPlannerTest.cpp |  55 +++-
 source/util/src/tjson.c                     |   8 +
 10 files changed, 509 insertions(+), 86 deletions(-)

diff --git a/include/libs/nodes/nodes.h b/include/libs/nodes/nodes.h
index 6a0422cd80..3ef832a69b 100644
--- a/include/libs/nodes/nodes.h
+++ b/include/libs/nodes/nodes.h
@@ -132,7 +132,7 @@ bool nodesEqualNode(const SNode* a, const SNode* b);
 SNode* nodesCloneNode(const SNode* pNode);
 SNodeList* nodesCloneList(const SNodeList* pList);
 
-int32_t nodesNodeToString(const SNode* pNode, char** pStr, int32_t* pLen);
+int32_t nodesNodeToString(const SNode* pNode, bool format, char** pStr, int32_t* pLen);
 int32_t nodesStringToNode(const char* pStr, SNode** pNode);
 
 #ifdef __cplusplus
diff --git a/include/util/tjson.h b/include/util/tjson.h
index a4eb6e5385..a0c2fef05b 100644
--- a/include/util/tjson.h
+++ b/include/util/tjson.h
@@ -30,6 +30,7 @@ void tjsonDelete(SJson* pJson);
 SJson* tjsonAddArrayToObject(SJson* pJson, const char* pName);
 
 int32_t tjsonAddIntegerToObject(SJson* pJson, const char* pName, const uint64_t number);
+int32_t tjsonAddDoubleToObject(SJson* pJson, const char* pName, const double number);
 int32_t tjsonAddStringToObject(SJson* pJson, const char* pName, const char* pVal);
 int32_t tjsonAddItemToObject(SJson* pJson, const char* pName, SJson* pItem);
 int32_t tjsonAddItemToArray(SJson* pJson, SJson* pItem);
@@ -42,6 +43,7 @@ int32_t tjsonAddItem(SJson* pJson, FToJson func, const void* pObj);
 typedef int32_t (*FFromJson)(const SJson* pJson, void* pObj);
 
 char* tjsonToString(const SJson* pJson);
+char* tjsonToUnformattedString(const SJson* pJson);
 
 #ifdef __cplusplus
 }
diff --git a/source/libs/nodes/src/nodesCloneFuncs.c b/source/libs/nodes/src/nodesCloneFuncs.c
index 63bb11a821..78606cd7a2 100644
--- a/source/libs/nodes/src/nodesCloneFuncs.c
+++ b/source/libs/nodes/src/nodesCloneFuncs.c
@@ -15,6 +15,7 @@
 
 #include "querynodes.h"
 #include "taos.h"
+#include "taoserror.h"
 
 #define COPY_SCALAR_FIELD(fldname) \
 	do { \
@@ -57,14 +58,13 @@ static void dataTypeCopy(const SDataType* pSrc, SDataType* pDst) {
 }
 
 static void exprNodeCopy(const SExprNode* pSrc, SExprNode* pDst) {
-  COPY_SCALAR_FIELD(type);
   dataTypeCopy(&pSrc->resType, &pDst->resType);
   COPY_CHAR_ARRAY_FIELD(aliasName);
   // COPY_NODE_LIST_FIELD(pAssociationList);
 }
 
 static SNode* columnNodeCopy(const SColumnNode* pSrc, SColumnNode* pDst) {
-  exprNodeCopy((const SExprNode*)&pSrc, (SExprNode*)&pDst);
+  exprNodeCopy((const SExprNode*)pSrc, (SExprNode*)pDst);
   COPY_SCALAR_FIELD(colId);
   COPY_SCALAR_FIELD(colType);
   COPY_CHAR_ARRAY_FIELD(dbName);
@@ -76,7 +76,7 @@ static SNode* columnNodeCopy(const SColumnNode* pSrc, SColumnNode* pDst) {
 }
 
 static SNode* valueNodeCopy(const SValueNode* pSrc, SValueNode* pDst) {
-  exprNodeCopy((const SExprNode*)&pSrc, (SExprNode*)&pDst);
+  exprNodeCopy((const SExprNode*)pSrc, (SExprNode*)pDst);
   COPY_CHAR_POINT_FIELD(literal);
   COPY_SCALAR_FIELD(isDuration);
   switch (pSrc->node.resType.type) {
@@ -119,7 +119,7 @@ static SNode* valueNodeCopy(const SValueNode* pSrc, SValueNode* pDst) {
 }
 
 static SNode* operatorNodeCopy(const SOperatorNode* pSrc, SOperatorNode* pDst) {
-  exprNodeCopy((const SExprNode*)&pSrc, (SExprNode*)&pDst);
+  exprNodeCopy((const SExprNode*)pSrc, (SExprNode*)pDst);
   COPY_SCALAR_FIELD(opType);
   COPY_NODE_FIELD(pLeft);
   COPY_NODE_FIELD(pRight);
@@ -127,14 +127,14 @@ static SNode* operatorNodeCopy(const SOperatorNode* pSrc, SOperatorNode* pDst) {
 }
 
 static SNode* logicConditionNodeCopy(const SLogicConditionNode* pSrc, SLogicConditionNode* pDst) {
-  exprNodeCopy((const SExprNode*)&pSrc, (SExprNode*)&pDst);
+  exprNodeCopy((const SExprNode*)pSrc, (SExprNode*)pDst);
   COPY_SCALAR_FIELD(condType);
   COPY_NODE_LIST_FIELD(pParameterList);
   return (SNode*)pDst;
 }
 
 static SNode* functionNodeCopy(const SFunctionNode* pSrc, SFunctionNode* pDst) {
-  exprNodeCopy((const SExprNode*)&pSrc, (SExprNode*)&pDst);
+  exprNodeCopy((const SExprNode*)pSrc, (SExprNode*)pDst);
   COPY_CHAR_ARRAY_FIELD(functionName);
   COPY_SCALAR_FIELD(funcId);
   COPY_SCALAR_FIELD(funcType);
@@ -142,12 +142,19 @@ static SNode* functionNodeCopy(const SFunctionNode* pSrc, SFunctionNode* pDst) {
   return (SNode*)pDst;
 }
 
+static SNode* groupingSetNodeCopy(const SGroupingSetNode* pSrc, SGroupingSetNode* pDst) {
+  COPY_SCALAR_FIELD(groupingSetType);
+  COPY_NODE_LIST_FIELD(pParameterList);
+  return (SNode*)pDst;
+}
+
 SNode* nodesCloneNode(const SNode* pNode) {
   if (NULL == pNode) {
     return NULL;
   }
   SNode* pDst = nodesMakeNode(nodeType(pNode));
   if (NULL == pDst) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
     return NULL;
   }
   switch (nodeType(pNode)) {
@@ -164,7 +171,9 @@ SNode* nodesCloneNode(const SNode* pNode) {
     case QUERY_NODE_REAL_TABLE:
     case QUERY_NODE_TEMP_TABLE:
     case QUERY_NODE_JOIN_TABLE:
+      break;
     case QUERY_NODE_GROUPING_SET:
+      return groupingSetNodeCopy((const SGroupingSetNode*)pNode, (SGroupingSetNode*)pDst);
     case QUERY_NODE_ORDER_BY_EXPR:
     case QUERY_NODE_LIMIT:
     default:
@@ -174,8 +183,13 @@ SNode* nodesCloneNode(const SNode* pNode) {
 }
 
 SNodeList* nodesCloneList(const SNodeList* pList) {
+  if (NULL == pList) {
+    return NULL;
+  }
+
   SNodeList* pDst = nodesMakeList();
   if (NULL == pDst) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
     return NULL;
   }
   SNode* pNode;
diff --git a/source/libs/nodes/src/nodesCodeFuncs.c b/source/libs/nodes/src/nodesCodeFuncs.c
index d1f32ae314..8968f0579d 100644
--- a/source/libs/nodes/src/nodesCodeFuncs.c
+++ b/source/libs/nodes/src/nodesCodeFuncs.c
@@ -26,27 +26,47 @@ static char* nodeName(ENodeType type) {
     case QUERY_NODE_COLUMN:
       return "Column";    
     case QUERY_NODE_VALUE:
+      return "Value";
     case QUERY_NODE_OPERATOR:
+      return "Operator";
     case QUERY_NODE_LOGIC_CONDITION:
+      return "LogicCondition";
     case QUERY_NODE_FUNCTION:
+      return "Function";
     case QUERY_NODE_REAL_TABLE:
+      return "RealTable";
     case QUERY_NODE_TEMP_TABLE:
+      return "TempTable";
     case QUERY_NODE_JOIN_TABLE:
+      return "JoinTable";
     case QUERY_NODE_GROUPING_SET:
+      return "GroupingSet";
     case QUERY_NODE_ORDER_BY_EXPR:
+      return "OrderByExpr";
     case QUERY_NODE_LIMIT:
+      return "Limit";
     case QUERY_NODE_STATE_WINDOW:
+      return "StateWindow";
     case QUERY_NODE_SESSION_WINDOW:
+      return "SessionWinow";
     case QUERY_NODE_INTERVAL_WINDOW:
+      return "IntervalWindow";
     case QUERY_NODE_NODE_LIST:
+      return "NodeList";
     case QUERY_NODE_FILL:
+      return "Fill";
     case QUERY_NODE_COLUMN_REF:
+      return "ColumnRef";
     case QUERY_NODE_TARGET:
+      return "Target";
     case QUERY_NODE_RAW_EXPR:
+      return "RawExpr";
     case QUERY_NODE_SET_OPERATOR:
+      return "SetOperator";
     case QUERY_NODE_SELECT_STMT:
+      return "SelectStmt";
     case QUERY_NODE_SHOW_STMT:
-      break;
+      return "ShowStmt";
     case QUERY_NODE_LOGIC_PLAN_SCAN:
       return "LogicScan";
     case QUERY_NODE_LOGIC_PLAN_JOIN:
@@ -119,7 +139,7 @@ static int32_t logicPlanNodeToJson(const void* pObj, SJson* pJson) {
 static const char* jkScanLogicPlanScanCols = "ScanCols";
 static const char* jkScanLogicPlanTableMeta = "TableMeta";
 
-static int32_t logicScanToJson(const void* pObj, SJson* pJson) {
+static int32_t logicScanNodeToJson(const void* pObj, SJson* pJson) {
   const SScanLogicNode* pNode = (const SScanLogicNode*)pObj;
 
   int32_t code = logicPlanNodeToJson(pObj, pJson);
@@ -135,7 +155,7 @@ static int32_t logicScanToJson(const void* pObj, SJson* pJson) {
 
 static const char* jkProjectLogicPlanProjections = "Projections";
 
-static int32_t logicProjectToJson(const void* pObj, SJson* pJson) {
+static int32_t logicProjectNodeToJson(const void* pObj, SJson* pJson) {
   const SProjectLogicNode* pNode = (const SProjectLogicNode*)pObj;
 
   int32_t code = logicPlanNodeToJson(pObj, pJson);
@@ -149,7 +169,7 @@ static int32_t logicProjectToJson(const void* pObj, SJson* pJson) {
 static const char* jkJoinLogicPlanJoinType = "JoinType";
 static const char* jkJoinLogicPlanOnConditions = "OnConditions";
 
-static int32_t logicJoinToJson(const void* pObj, SJson* pJson) {
+static int32_t logicJoinNodeToJson(const void* pObj, SJson* pJson) {
   const SJoinLogicNode* pNode = (const SJoinLogicNode*)pObj;
 
   int32_t code = logicPlanNodeToJson(pObj, pJson);
@@ -163,14 +183,14 @@ static int32_t logicJoinToJson(const void* pObj, SJson* pJson) {
   return code;
 }
 
-static int32_t logicFilterToJson(const void* pObj, SJson* pJson) {
+static int32_t logicFilterNodeToJson(const void* pObj, SJson* pJson) {
   return logicPlanNodeToJson(pObj, pJson);
 }
 
 static const char* jkAggLogicPlanGroupKeys = "GroupKeys";
 static const char* jkAggLogicPlanAggFuncs = "AggFuncs";
 
-static int32_t logicAggToJson(const void* pObj, SJson* pJson) {
+static int32_t logicAggNodeToJson(const void* pObj, SJson* pJson) {
   const SAggLogicNode* pNode = (const SAggLogicNode*)pObj;
 
   int32_t code = logicPlanNodeToJson(pObj, pJson);
@@ -184,17 +204,291 @@ static int32_t logicAggToJson(const void* pObj, SJson* pJson) {
   return code;
 }
 
+static const char* jkDataTypeType = "Type";
+static const char* jkDataTypePrecision = "Precision";
+static const char* jkDataTypeScale = "Scale";
+static const char* jkDataTypeDataBytes = "Bytes";
+
+static int32_t dataTypeToJson(const void* pObj, SJson* pJson) {
+  const SDataType* pNode = (const SDataType*)pObj;
+
+  int32_t code = tjsonAddIntegerToObject(pJson, jkDataTypeType, pNode->type);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkDataTypePrecision, pNode->precision);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkDataTypeScale, pNode->scale);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkDataTypeDataBytes, pNode->bytes);
+  }
+
+  return code;
+}
+
+static const char* jkExprDataType = "DataType";
+static const char* jkExprAliasName = "AliasName";
+
+static int32_t exprNodeToJson(const void* pObj, SJson* pJson) {
+  const SExprNode* pNode = (const SExprNode*)pObj;
+
+  int32_t code = tjsonAddObject(pJson, jkExprDataType, dataTypeToJson, &pNode->resType);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddStringToObject(pJson, jkExprAliasName, pNode->aliasName);
+  }
+
+  return code;
+}
+
+static const char* jkColumnTableId = "TableId";
+static const char* jkColumnColId = "ColId";
+static const char* jkColumnColType = "ColType";
+static const char* jkColumnDbName = "DbName";
+static const char* jkColumnTableName = "TableName";
+static const char* jkColumnTableAlias = "TableAlias";
+static const char* jkColumnColName = "ColName";
+
+static int32_t columnNodeToJson(const void* pObj, SJson* pJson) {
+  const SColumnNode* pNode = (const SColumnNode*)pObj;
+
+  int32_t code = exprNodeToJson(pObj, pJson);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkColumnTableId, pNode->tableId);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkColumnColId, pNode->colId);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkColumnColType, pNode->colType);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddStringToObject(pJson, jkColumnDbName, pNode->dbName);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddStringToObject(pJson, jkColumnTableName, pNode->tableName);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddStringToObject(pJson, jkColumnTableAlias, pNode->tableAlias);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddStringToObject(pJson, jkColumnColName, pNode->colName);
+  }
+
+  return code;
+}
+
+// typedef struct SValueNode {
+//   SExprNode node; // QUERY_NODE_VALUE
+//   char* ;
+//   bool ;
+//   union {
+//     bool b;
+//     int64_t i;
+//     uint64_t u;
+//     double d;
+//     char* p;
+//   } datum;
+// } SValueNode;
+
+static const char* jkValueLiteral = "Literal";
+static const char* jkValueDuration = "Duration";
+static const char* jkValueDatum = "Datum";
+
+static int32_t valueNodeToJson(const void* pObj, SJson* pJson) {
+  const SValueNode* pNode = (const SValueNode*)pObj;
+
+  int32_t code = exprNodeToJson(pObj, pJson);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddStringToObject(pJson, jkValueLiteral, pNode->literal);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkValueDuration, pNode->isDuration);
+  }
+  switch (pNode->node.resType.type) {
+    case TSDB_DATA_TYPE_NULL:
+      break;
+    case TSDB_DATA_TYPE_BOOL:
+      code = tjsonAddIntegerToObject(pJson, jkValueDuration, pNode->datum.b);
+      break;
+    case TSDB_DATA_TYPE_TINYINT:
+    case TSDB_DATA_TYPE_SMALLINT:
+    case TSDB_DATA_TYPE_INT:
+    case TSDB_DATA_TYPE_BIGINT:
+    case TSDB_DATA_TYPE_TIMESTAMP:
+      code = tjsonAddIntegerToObject(pJson, jkValueDuration, pNode->datum.i);
+      break;
+    case TSDB_DATA_TYPE_UTINYINT:
+    case TSDB_DATA_TYPE_USMALLINT:
+    case TSDB_DATA_TYPE_UINT:
+    case TSDB_DATA_TYPE_UBIGINT:
+      code = tjsonAddIntegerToObject(pJson, jkValueDuration, pNode->datum.u);
+      break;
+    case TSDB_DATA_TYPE_FLOAT:
+    case TSDB_DATA_TYPE_DOUBLE:
+      code = tjsonAddDoubleToObject(pJson, jkValueDuration, pNode->datum.d);
+      break;
+    case TSDB_DATA_TYPE_BINARY:
+    case TSDB_DATA_TYPE_NCHAR:
+    case TSDB_DATA_TYPE_VARCHAR:
+    case TSDB_DATA_TYPE_VARBINARY:
+      code = tjsonAddStringToObject(pJson, jkValueLiteral, pNode->datum.p);
+      break;
+    case TSDB_DATA_TYPE_JSON:
+    case TSDB_DATA_TYPE_DECIMAL:
+    case TSDB_DATA_TYPE_BLOB:
+      // todo
+    default:
+      break;
+  }
+
+  return code;
+}
+
+static const char* jkOperatorType = "OpType";
+static const char* jkOperatorLeft = "Left";
+static const char* jkOperatorRight = "Right";
+
+static int32_t operatorNodeToJson(const void* pObj, SJson* pJson) {
+  const SOperatorNode* pNode = (const SOperatorNode*)pObj;
+
+  int32_t code = exprNodeToJson(pObj, pJson);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkOperatorType, pNode->opType);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddObject(pJson, jkOperatorLeft, nodeToJson, pNode->pLeft);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddObject(pJson, jkOperatorRight, nodeToJson, pNode->pRight);
+  }
+
+  return code;
+}
+
+static const char* jkLogicCondType = "CondType";
+static const char* jkLogicCondParameters = "Parameters";
+
+static int32_t logicConditionNodeToJson(const void* pObj, SJson* pJson) {
+  const SLogicConditionNode* pNode = (const SLogicConditionNode*)pObj;
+
+  int32_t code = exprNodeToJson(pObj, pJson);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkLogicCondType, pNode->condType);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = addNodeList(pJson, jkLogicCondParameters, nodeToJson, pNode->pParameterList);
+  }
+
+  return code;
+}
+
+static const char* jkFunctionName = "Name";
+static const char* jkFunctionId = "Id";
+static const char* jkFunctionType = "Type";
+static const char* jkFunctionParameter = "Parameters";
+
+static int32_t functionNodeToJson(const void* pObj, SJson* pJson) {
+  const SFunctionNode* pNode = (const SFunctionNode*)pObj;
+
+  int32_t code = exprNodeToJson(pObj, pJson);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddStringToObject(pJson, jkFunctionName, pNode->functionName);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkFunctionId, pNode->funcId);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkFunctionType, pNode->funcType);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = addNodeList(pJson, jkFunctionParameter, nodeToJson, pNode->pParameterList);
+  }
+
+  return code;
+}
+
+static const char* jkGroupingSetType = "GroupingSetType";
+static const char* jkGroupingSetParameter = "Parameters";
+
+static int32_t groupingSetNodeToJson(const void* pObj, SJson* pJson) {
+  const SGroupingSetNode* pNode = (const SGroupingSetNode*)pObj;
+
+  int32_t code = tjsonAddIntegerToObject(pJson, jkGroupingSetType, pNode->groupingSetType);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = addNodeList(pJson, jkGroupingSetParameter, nodeToJson, pNode->pParameterList);
+  }
+
+  return code;
+}
+
+static const char* jkSelectStmtDistinct = "Distinct";
+static const char* jkSelectStmtProjections = "Projections";
+static const char* jkSelectStmtFrom = "From";
+static const char* jkSelectStmtWhere = "Where";
+static const char* jkSelectStmtPartitionBy = "PartitionBy";
+static const char* jkSelectStmtWindow = "Window";
+static const char* jkSelectStmtGroupBy = "GroupBy";
+static const char* jkSelectStmtHaving = "Having";
+static const char* jkSelectStmtOrderBy = "OrderBy";
+static const char* jkSelectStmtLimit = "Limit";
+static const char* jkSelectStmtSlimit = "Slimit";
+
+static int32_t selectStmtTojson(const void* pObj, SJson* pJson) {
+  const SSelectStmt* pNode = (const SSelectStmt*)pObj;
+
+  int32_t code = tjsonAddIntegerToObject(pJson, jkSelectStmtDistinct, pNode->isDistinct);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = addNodeList(pJson, jkSelectStmtProjections, nodeToJson, pNode->pProjectionList);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddObject(pJson, jkSelectStmtFrom, nodeToJson, pNode->pFromTable);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddObject(pJson, jkSelectStmtWhere, nodeToJson, pNode->pWhere);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = addNodeList(pJson, jkSelectStmtPartitionBy, nodeToJson, pNode->pPartitionByList);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddObject(pJson, jkSelectStmtWindow, nodeToJson, pNode->pWindow);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = addNodeList(pJson, jkSelectStmtGroupBy, nodeToJson, pNode->pGroupByList);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddObject(pJson, jkSelectStmtHaving, nodeToJson, pNode->pHaving);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = addNodeList(pJson, jkSelectStmtOrderBy, nodeToJson, pNode->pOrderByList);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddObject(pJson, jkSelectStmtLimit, nodeToJson, pNode->pLimit);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddObject(pJson, jkSelectStmtSlimit, nodeToJson, pNode->pSlimit);
+  }
+
+  return code;
+}
+
 static int32_t specificNodeToJson(const void* pObj, SJson* pJson) {
   switch (nodeType(pObj)) {
     case QUERY_NODE_COLUMN:
+      return columnNodeToJson(pObj, pJson);
     case QUERY_NODE_VALUE:
+      return valueNodeToJson(pObj, pJson);
     case QUERY_NODE_OPERATOR:
+      return operatorNodeToJson(pObj, pJson);
     case QUERY_NODE_LOGIC_CONDITION:
+      return logicConditionNodeToJson(pObj, pJson);
     case QUERY_NODE_FUNCTION:
+      return functionNodeToJson(pObj, pJson);
     case QUERY_NODE_REAL_TABLE:
     case QUERY_NODE_TEMP_TABLE:
     case QUERY_NODE_JOIN_TABLE:
+      break;
     case QUERY_NODE_GROUPING_SET:
+      return groupingSetNodeToJson(pObj, pJson);
     case QUERY_NODE_ORDER_BY_EXPR:
     case QUERY_NODE_LIMIT:
     case QUERY_NODE_STATE_WINDOW:
@@ -206,19 +500,21 @@ static int32_t specificNodeToJson(const void* pObj, SJson* pJson) {
     case QUERY_NODE_TARGET:
     case QUERY_NODE_RAW_EXPR:
     case QUERY_NODE_SET_OPERATOR:
+      break;
     case QUERY_NODE_SELECT_STMT:
+      return selectStmtTojson(pObj, pJson);
     case QUERY_NODE_SHOW_STMT:
       break;
     case QUERY_NODE_LOGIC_PLAN_SCAN:
-      return logicScanToJson(pObj, pJson);
+      return logicScanNodeToJson(pObj, pJson);
     case QUERY_NODE_LOGIC_PLAN_JOIN:
-      return logicJoinToJson(pObj, pJson);
+      return logicJoinNodeToJson(pObj, pJson);
     case QUERY_NODE_LOGIC_PLAN_FILTER:
-      return logicFilterToJson(pObj, pJson);
+      return logicFilterNodeToJson(pObj, pJson);
     case QUERY_NODE_LOGIC_PLAN_AGG:
-      return logicAggToJson(pObj, pJson);
+      return logicAggNodeToJson(pObj, pJson);
     case QUERY_NODE_LOGIC_PLAN_PROJECT:
-      return logicProjectToJson(pObj, pJson);
+      return logicProjectNodeToJson(pObj, pJson);
     default:
       break;
   }
@@ -238,7 +534,7 @@ static int32_t nodeToJson(const void* pObj, SJson* pJson) {
   return code;
 }
 
-int32_t nodesNodeToString(const SNode* pNode, char** pStr, int32_t* pLen) {
+int32_t nodesNodeToString(const SNode* pNode, bool format, char** pStr, int32_t* pLen) {
   if (NULL == pNode || NULL == pStr || NULL == pLen) {
     return TSDB_CODE_SUCCESS;
   }
@@ -255,7 +551,7 @@ int32_t nodesNodeToString(const SNode* pNode, char** pStr, int32_t* pLen) {
     return code;
   }
 
-  *pStr = tjsonToString(pJson);
+  *pStr = format ? tjsonToString(pJson) : tjsonToUnformattedString(pJson);
   tjsonDelete(pJson);
 
   *pLen = strlen(*pStr) + 1;
diff --git a/source/libs/nodes/src/nodesUtilFuncs.c b/source/libs/nodes/src/nodesUtilFuncs.c
index 868af93c92..e637822fd3 100644
--- a/source/libs/nodes/src/nodesUtilFuncs.c
+++ b/source/libs/nodes/src/nodesUtilFuncs.c
@@ -132,11 +132,22 @@ int32_t nodesListAppend(SNodeList* pList, SNode* pNode) {
 }
 
 int32_t nodesListAppendList(SNodeList* pTarget, SNodeList* pSrc) {
-  pTarget->pTail->pNext = pSrc->pHead;
-  pSrc->pHead->pPrev = pTarget->pTail;
+  if (NULL == pTarget || NULL == pSrc) {
+    return TSDB_CODE_SUCCESS;
+  }
+
+  if (NULL == pTarget->pHead) {
+    pTarget->pHead = pSrc->pHead;
+  } else {
+    pTarget->pTail->pNext = pSrc->pHead;
+    if (NULL != pSrc->pHead) {
+      pSrc->pHead->pPrev = pTarget->pTail;
+    }
+  }
   pTarget->pTail = pSrc->pTail;
   pTarget->length += pSrc->length;
   tfree(pSrc);
+
   return TSDB_CODE_SUCCESS;
 }
 
@@ -290,6 +301,10 @@ int32_t nodesCollectColumns(SSelectStmt* pSelect, ESqlClause clause, const char*
     nodesDestroyList(cxt.pCols);
     return cxt.errCode;
   }
+  if (0 == LIST_LENGTH(cxt.pCols)) {
+    nodesDestroyList(cxt.pCols);
+    cxt.pCols = NULL;
+  }
   *pCols = cxt.pCols;
   return TSDB_CODE_SUCCESS;
 }
diff --git a/source/libs/parser/src/parserImpl.c b/source/libs/parser/src/parserImpl.c
index d353c245cb..cf8d05975b 100644
--- a/source/libs/parser/src/parserImpl.c
+++ b/source/libs/parser/src/parserImpl.c
@@ -349,7 +349,7 @@ static SNodeList* getProjectList(SNode* pNode) {
   return NULL;
 }
 
-static void setColumnInfoBySchema(const SRealTableNode* pTable, const SSchema* pColSchema, SColumnNode* pCol) {
+static void setColumnInfoBySchema(const SRealTableNode* pTable, const SSchema* pColSchema, bool isTag, SColumnNode* pCol) {
   strcpy(pCol->dbName, pTable->table.dbName);
   strcpy(pCol->tableAlias, pTable->table.tableAlias);
   strcpy(pCol->tableName, pTable->table.tableName);
@@ -359,7 +359,7 @@ static void setColumnInfoBySchema(const SRealTableNode* pTable, const SSchema* p
   }
   pCol->tableId = pTable->pMeta->uid;
   pCol->colId = pColSchema->colId;
-  // pCol->colType = pColSchema->type;
+  pCol->colType = isTag ? COLUMN_TYPE_TAG : COLUMN_TYPE_COLUMN;
   pCol->node.resType.type = pColSchema->type;
   pCol->node.resType.bytes = pColSchema->bytes;
 }
@@ -383,7 +383,7 @@ static int32_t createColumnNodeByTable(STranslateContext* pCxt, const STableNode
       if (NULL == pCol) {
         return generateSyntaxErrMsg(pCxt, TSDB_CODE_OUT_OF_MEMORY);
       }
-      setColumnInfoBySchema((SRealTableNode*)pTable, pMeta->schema + i, pCol);
+      setColumnInfoBySchema((SRealTableNode*)pTable, pMeta->schema + i, (i < pMeta->tableInfo.numOfTags), pCol);
       nodesListAppend(pList, (SNode*)pCol);
     }
   } else {
@@ -408,7 +408,7 @@ static bool findAndSetColumn(SColumnNode* pCol, const STableNode* pTable) {
     int32_t nums = pMeta->tableInfo.numOfTags + pMeta->tableInfo.numOfColumns;
     for (int32_t i = 0; i < nums; ++i) {
       if (0 == strcmp(pCol->colName, pMeta->schema[i].name)) {
-        setColumnInfoBySchema((SRealTableNode*)pTable, pMeta->schema + i, pCol);
+        setColumnInfoBySchema((SRealTableNode*)pTable, pMeta->schema + i, (i < pMeta->tableInfo.numOfTags), pCol);
         found = true;
         break;
       }
diff --git a/source/libs/parser/test/mockCatalog.cpp b/source/libs/parser/test/mockCatalog.cpp
index d68b04a384..8ed67d7f2f 100644
--- a/source/libs/parser/test/mockCatalog.cpp
+++ b/source/libs/parser/test/mockCatalog.cpp
@@ -29,9 +29,9 @@
 namespace {
 
 void generateTestT1(MockCatalogService* mcs) {
-  ITableBuilder& builder = mcs->createTableBuilder("test", "t1", TSDB_NORMAL_TABLE, 3)
+  ITableBuilder& builder = mcs->createTableBuilder("test", "t1", TSDB_NORMAL_TABLE, 4)
       .setPrecision(TSDB_TIME_PRECISION_MILLI).setVgid(1).addColumn("ts", TSDB_DATA_TYPE_TIMESTAMP)
-      .addColumn("c1", TSDB_DATA_TYPE_INT).addColumn("c2", TSDB_DATA_TYPE_BINARY, 20);
+      .addColumn("c1", TSDB_DATA_TYPE_INT).addColumn("c2", TSDB_DATA_TYPE_BINARY, 20).addColumn("c3", TSDB_DATA_TYPE_BIGINT);
   builder.done();
 }
 
diff --git a/source/libs/planner/src/plannerImpl.c b/source/libs/planner/src/plannerImpl.c
index 40a82f4175..54a7330667 100644
--- a/source/libs/planner/src/plannerImpl.c
+++ b/source/libs/planner/src/plannerImpl.c
@@ -18,20 +18,20 @@
 
 #define CHECK_ALLOC(p, res) \
   do { \
-    if (NULL == p) { \
+    if (NULL == (p)) { \
       printf("%s : %d\n", __FUNCTION__, __LINE__); \
       pCxt->errCode = TSDB_CODE_OUT_OF_MEMORY; \
-      return res; \
+      return (res); \
     } \
   } while (0)
 
 #define CHECK_CODE(exec, res) \
   do { \
-    int32_t code = exec; \
+    int32_t code = (exec); \
     if (TSDB_CODE_SUCCESS != code) { \
       printf("%s : %d\n", __FUNCTION__, __LINE__); \
       pCxt->errCode = code; \
-      return res; \
+      return (res); \
     } \
   } while (0)
 
@@ -83,14 +83,30 @@ static EDealRes doRewriteExpr(SNode** pNode, void* pContext) {
   return DEAL_RES_CONTINUE;
 }
 
-static int32_t rewriteExpr(int32_t planNodeId, int32_t rewriteId, SNodeList* pExprs, SSelectStmt* pSelect, ESqlClause clause) {
-  SNode* pNode;
-  FOREACH(pNode, pExprs) {
-    if (QUERY_NODE_COLUMN == nodeType(pNode) || QUERY_NODE_VALUE == nodeType(pNode)) {
-      continue;
+typedef struct SNameExprCxt {
+  int32_t planNodeId;
+  int32_t rewriteId;
+} SNameExprCxt;
+
+static EDealRes doNameExpr(SNode* pNode, void* pContext) {
+  switch (nodeType(pNode)) {
+    case QUERY_NODE_OPERATOR:
+    case QUERY_NODE_LOGIC_CONDITION:
+    case QUERY_NODE_FUNCTION: {
+      SNameExprCxt* pCxt = (SNameExprCxt*)pContext;
+      sprintf(((SExprNode*)pNode)->aliasName, "#expr_%d_%d", pCxt->planNodeId, pCxt->rewriteId++);
+      return DEAL_RES_IGNORE_CHILD;
     }
-    sprintf(((SExprNode*)pNode)->aliasName, "#expr_%d_%d", planNodeId, rewriteId);
+    default:
+      break;
   }
+
+  return DEAL_RES_CONTINUE;
+}
+
+static int32_t rewriteExpr(int32_t planNodeId, int32_t rewriteId, SNodeList* pExprs, SSelectStmt* pSelect, ESqlClause clause) {
+  SNameExprCxt nameCxt = { .planNodeId = planNodeId, .rewriteId = rewriteId };
+  nodesWalkList(pExprs, doNameExpr, &nameCxt);
   SRewriteExprCxt cxt = { .errCode = TSDB_CODE_SUCCESS, .pExprs = pExprs };
   nodesRewriteSelectStmt(pSelect, clause, doRewriteExpr, &cxt);
   return cxt.errCode;
@@ -135,12 +151,16 @@ static SLogicNode* createScanLogicNode(SPlanContext* pCxt, SSelectStmt* pSelect,
   // set columns to scan
   SNodeList* pCols = NULL;
   CHECK_CODE(nodesCollectColumns(pSelect, SQL_CLAUSE_FROM, pRealTable->table.tableAlias, &pCols), (SLogicNode*)pScan);
-  pScan->pScanCols = nodesCloneList(pCols);
-  CHECK_ALLOC(pScan->pScanCols, (SLogicNode*)pScan);
+  if (NULL != pCols) {
+    pScan->pScanCols = nodesCloneList(pCols);
+    CHECK_ALLOC(pScan->pScanCols, (SLogicNode*)pScan);
+  }
 
   // set output
-  pScan->node.pTargets = nodesCloneList(pCols);
-  CHECK_ALLOC(pScan->node.pTargets, (SLogicNode*)pScan);
+  if (NULL != pCols) {
+    pScan->node.pTargets = nodesCloneList(pCols);
+    CHECK_ALLOC(pScan->node.pTargets, (SLogicNode*)pScan);
+  }
 
   return (SLogicNode*)pScan;
 }
@@ -173,8 +193,10 @@ static SLogicNode* createJoinLogicNode(SPlanContext* pCxt, SSelectStmt* pSelect,
   CHECK_CODE(nodesListAppend(pJoin->node.pChildren, (SNode*)pRight), (SLogicNode*)pJoin);
 
   // set on conditions
-  pJoin->pOnConditions = nodesCloneNode(pJoinTable->pOnCond);
-  CHECK_ALLOC(pJoin->pOnConditions, (SLogicNode*)pJoin);
+  if (NULL != pJoinTable->pOnCond) {
+    pJoin->pOnConditions = nodesCloneNode(pJoinTable->pOnCond);
+    CHECK_ALLOC(pJoin->pOnConditions, (SLogicNode*)pJoin);
+  }
 
   // set the output
   pJoin->node.pTargets = nodesCloneList(pLeft->pTargets);
@@ -220,35 +242,57 @@ static SLogicNode* createWhereFilterLogicNode(SPlanContext* pCxt, SLogicNode* pC
   return (SLogicNode*)pFilter;
 }
 
-static SNodeList* createColumnByRewriteExps(SPlanContext* pCxt, SNodeList* pExprs) {
-  SNodeList* pList = nodesMakeList();
-  CHECK_ALLOC(pList, NULL);
-  SNode* pNode;
-  FOREACH(pNode, pExprs) {
-    if (QUERY_NODE_VALUE == nodeType(pNode)) {
-      continue;
-    } else if (QUERY_NODE_COLUMN == nodeType(pNode)) {
+typedef struct SCreateColumnCxt {
+  int32_t errCode;
+  SNodeList* pList;
+} SCreateColumnCxt;
+
+static EDealRes doCreateColumn(SNode* pNode, void* pContext) {
+  SCreateColumnCxt* pCxt = (SCreateColumnCxt*)pContext;
+  switch (nodeType(pNode)) {
+    case QUERY_NODE_COLUMN: {
       SNode* pCol = nodesCloneNode(pNode);
-      if (NULL == pCol) {
-        goto error;
+      if (NULL == pCol || TSDB_CODE_SUCCESS != nodesListAppend(pCxt->pList, pCol)) {
+        pCxt->errCode = TSDB_CODE_OUT_OF_MEMORY;
+        return DEAL_RES_ERROR;
       }
-      if (TSDB_CODE_SUCCESS != nodesListAppend(pList, pCol)) {
-        goto error;
-      }
-    } else {
+      return DEAL_RES_IGNORE_CHILD;
+    }
+    case QUERY_NODE_OPERATOR:
+    case QUERY_NODE_LOGIC_CONDITION:
+    case QUERY_NODE_FUNCTION: {
       SExprNode* pExpr = (SExprNode*)pNode;
       SColumnNode* pCol = (SColumnNode*)nodesMakeNode(QUERY_NODE_COLUMN);
       if (NULL == pCol) {
-        goto error;
+        pCxt->errCode = TSDB_CODE_OUT_OF_MEMORY;
+        return DEAL_RES_ERROR;
       }
       pCol->node.resType = pExpr->resType;
       strcpy(pCol->colName, pExpr->aliasName);
+      if (TSDB_CODE_SUCCESS != nodesListAppend(pCxt->pList, (SNode*)pCol)) {
+        pCxt->errCode = TSDB_CODE_OUT_OF_MEMORY;
+        return DEAL_RES_ERROR;
+      }
+      return DEAL_RES_IGNORE_CHILD;
     }
+    default:
+      break;
   }
-  return pList;
-error:
-  nodesDestroyList(pList);
-  return NULL;
+
+  return DEAL_RES_CONTINUE;
+}
+
+static SNodeList* createColumnByRewriteExps(SPlanContext* pCxt, SNodeList* pExprs) {
+  SCreateColumnCxt cxt = { .errCode = TSDB_CODE_SUCCESS, .pList = nodesMakeList() };
+  if (NULL == cxt.pList) {
+    return NULL;
+  }
+  nodesWalkList(pExprs, doCreateColumn, &cxt);
+  if (TSDB_CODE_SUCCESS != cxt.errCode) {
+    nodesDestroyList(cxt.pList);
+    return NULL;
+  }
+  return cxt.pList;
 }
 
 static SLogicNode* createAggLogicNode(SPlanContext* pCxt, SSelectStmt* pSelect) {
@@ -263,24 +307,37 @@ static SLogicNode* createAggLogicNode(SPlanContext* pCxt, SSelectStmt* pSelect)
   pAgg->node.id = pCxt->planNodeId++;
 
   // set grouyp keys, agg funcs and having conditions
-  pAgg->pGroupKeys = nodesCloneList(pSelect->pGroupByList);
-  CHECK_ALLOC(pAgg->pGroupKeys, (SLogicNode*)pAgg);
-  pAgg->pAggFuncs = nodesCloneList(pAggFuncs);
-  CHECK_ALLOC(pAgg->pAggFuncs, (SLogicNode*)pAgg);
+  if (NULL != pSelect->pGroupByList) {
+    pAgg->pGroupKeys = nodesCloneList(pSelect->pGroupByList);
+    CHECK_ALLOC(pAgg->pGroupKeys, (SLogicNode*)pAgg);
+  }
+  if (NULL != pAggFuncs) {
+    pAgg->pAggFuncs = nodesCloneList(pAggFuncs);
+    CHECK_ALLOC(pAgg->pAggFuncs, (SLogicNode*)pAgg);
+  }
 
   // rewrite the expression in subsequent clauses
   CHECK_CODE(rewriteExpr(pAgg->node.id, 1, pAgg->pGroupKeys, pSelect, SQL_CLAUSE_GROUP_BY), (SLogicNode*)pAgg);
   CHECK_CODE(rewriteExpr(pAgg->node.id, 1 + LIST_LENGTH(pAgg->pGroupKeys), pAgg->pAggFuncs, pSelect, SQL_CLAUSE_GROUP_BY), (SLogicNode*)pAgg);
 
-  pAgg->node.pConditions = nodesCloneNode(pSelect->pHaving);
-  CHECK_ALLOC(pAgg->node.pConditions, (SLogicNode*)pAgg);
+  if (NULL != pSelect->pHaving) {
+    pAgg->node.pConditions = nodesCloneNode(pSelect->pHaving);
+    CHECK_ALLOC(pAgg->node.pConditions, (SLogicNode*)pAgg);
+  }
 
   // set the output
-  pAgg->node.pTargets = createColumnByRewriteExps(pCxt, pAgg->pGroupKeys);
+  pAgg->node.pTargets = nodesMakeList();
   CHECK_ALLOC(pAgg->node.pTargets, (SLogicNode*)pAgg);
-  SNodeList* pTargets = createColumnByRewriteExps(pCxt, pAgg->pAggFuncs);
-  CHECK_ALLOC(pTargets, (SLogicNode*)pAgg);
-  nodesListAppendList(pAgg->node.pTargets, pTargets);
+  if (NULL != pAgg->pGroupKeys) {
+    SNodeList* pTargets = createColumnByRewriteExps(pCxt, pAgg->pGroupKeys);
+    CHECK_ALLOC(pAgg->node.pTargets, (SLogicNode*)pAgg);
+    nodesListAppendList(pAgg->node.pTargets, pTargets);
+  }
+  if (NULL != pAgg->pAggFuncs) {
+    SNodeList* pTargets = createColumnByRewriteExps(pCxt, pAgg->pAggFuncs);
+    CHECK_ALLOC(pTargets, (SLogicNode*)pAgg);
+    nodesListAppendList(pAgg->node.pTargets, pTargets);
+  }
   
   return (SLogicNode*)pAgg;
 }
@@ -344,7 +401,7 @@ static SLogicNode* createQueryLogicNode(SPlanContext* pCxt, SNode* pStmt) {
 }
 
 int32_t createLogicPlan(SNode* pNode, SLogicNode** pLogicNode) {
-  SPlanContext cxt = { .errCode = TSDB_CODE_SUCCESS, .planNodeId = 0 };
+  SPlanContext cxt = { .errCode = TSDB_CODE_SUCCESS, .planNodeId = 1 };
   SLogicNode* pRoot = createQueryLogicNode(&cxt, pNode);
   if (TSDB_CODE_SUCCESS != cxt.errCode) {
     nodesDestroyNode((SNode*)pRoot);
diff --git a/source/libs/planner/test/newPlannerTest.cpp b/source/libs/planner/test/newPlannerTest.cpp
index c227bf88ba..c3ee4fb9a8 100644
--- a/source/libs/planner/test/newPlannerTest.cpp
+++ b/source/libs/planner/test/newPlannerTest.cpp
@@ -42,26 +42,28 @@ protected:
 
   bool run() {
     int32_t code = parser(&cxt_, &query_);
-    // cout << "parser return " << code << endl;
+
     if (code != TSDB_CODE_SUCCESS) {
-      cout << "sql:[" << cxt_.pSql << "] parser code:" << tstrerror(code) << ", msg:" << errMagBuf_ << endl;
+      cout << "sql:[" << cxt_.pSql << "] parser code:" << code << ", strerror:" << tstrerror(code) << ", msg:" << errMagBuf_ << endl;
       return false;
     }
+
+    const string syntaxTreeStr = toString(query_.pRoot, false);
+  
     SLogicNode* pLogicPlan = nullptr;
     code = createLogicPlan(query_.pRoot, &pLogicPlan);
     if (code != TSDB_CODE_SUCCESS) {
-      cout << "sql:[" << cxt_.pSql << "] plan code:" << tstrerror(code) << endl;
+      cout << "sql:[" << cxt_.pSql << "] plan code:" << code << ", strerror:" << tstrerror(code) << endl;
       return false;
     }
-    char* pStr = NULL;
-    int32_t len = 0;
-    code = nodesNodeToString((const SNode*)pLogicPlan, &pStr, &len);
-    if (code != TSDB_CODE_SUCCESS) {
-      cout << "sql:[" << cxt_.pSql << "] toString code:" << tstrerror(code) << endl;
-      return false;
-    }
-    cout << "logic plan : " << endl;
-    cout << pStr << endl;
+  
+    cout << "sql : [" << cxt_.pSql << "]" << endl;
+    cout << "syntax test : " << endl;
+    cout << syntaxTreeStr << endl;
+    // cout << "logic plan : " << endl;
+    // cout << toString((const SNode*)pLogicPlan) << endl;
+    cout << "unformatted logic plan : " << endl;
+    cout << toString((const SNode*)pLogicPlan, false) << endl;
     return true;
   }
 
@@ -75,6 +77,19 @@ private:
     cxt_.msgLen = max_err_len;
   }
 
+  string toString(const SNode* pRoot, bool format = true) {
+    char* pStr = NULL;
+    int32_t len = 0;
+    int32_t code = nodesNodeToString(pRoot, format, &pStr, &len);
+    if (code != TSDB_CODE_SUCCESS) {
+      cout << "sql:[" << cxt_.pSql << "] toString code:" << code << ", strerror:" << tstrerror(code) << endl;
+      return string();
+    }
+    string str(pStr);
+    tfree(pStr);
+    return str;
+  }
+
   string acctId_;
   string db_;
   char errMagBuf_[max_err_len];
@@ -89,3 +104,19 @@ TEST_F(NewPlannerTest, simple) {
   bind("SELECT * FROM t1");
   ASSERT_TRUE(run());
 }
+
+TEST_F(NewPlannerTest, groupBy) {
+  setDatabase("root", "test");
+
+  bind("SELECT count(*) FROM t1");
+  ASSERT_TRUE(run());
+
+  bind("SELECT c1, count(*) FROM t1 GROUP BY c1");
+  ASSERT_TRUE(run());
+
+  bind("SELECT c1 + c3, c1 + count(*) FROM t1 where c2 = 'abc' GROUP BY c1, c3");
+  ASSERT_TRUE(run());
+
+  bind("SELECT c1 + c3, count(*) FROM t1 where concat(c2, 'wwww') = 'abcwww' GROUP BY c1 + c3");
+  ASSERT_TRUE(run());
+}
diff --git a/source/util/src/tjson.c b/source/util/src/tjson.c
index 556e8f8060..13367843fc 100644
--- a/source/util/src/tjson.c
+++ b/source/util/src/tjson.c
@@ -32,6 +32,10 @@ int32_t tjsonAddIntegerToObject(SJson* pJson, const char* pName, const uint64_t
   return tjsonAddStringToObject(pJson, pName, tmp);
 }
 
+int32_t tjsonAddDoubleToObject(SJson* pJson, const char* pName, const double number) {
+  return (NULL == cJSON_AddNumberToObject((cJSON*)pJson, pName, number) ? TSDB_CODE_FAILED : TSDB_CODE_SUCCESS);
+}
+
 int32_t tjsonAddStringToObject(SJson* pJson, const char* pName, const char* pVal) {
   return (NULL == cJSON_AddStringToObject((cJSON*)pJson, pName, pVal) ? TSDB_CODE_FAILED : TSDB_CODE_SUCCESS);
 }
@@ -74,3 +78,7 @@ int32_t tjsonAddItem(SJson* pJson, FToJson func, const void* pObj) {
 char* tjsonToString(const SJson* pJson) {
   return cJSON_Print((cJSON*)pJson);
 }
+
+char* tjsonToUnformattedString(const SJson* pJson) {
+  return cJSON_PrintUnformatted((cJSON*)pJson);
+}
\ No newline at end of file

From d687393bf8f575db72c23c9fddd03c7406e987a6 Mon Sep 17 00:00:00 2001
From: dapan <wpan@taosdata.com>
Date: Mon, 21 Feb 2022 19:01:23 +0800
Subject: [PATCH 07/12] fix catalog issue

---
 source/libs/catalog/src/catalog.c | 60 ++++++++++++++++---------------
 1 file changed, 32 insertions(+), 28 deletions(-)

diff --git a/source/libs/catalog/src/catalog.c b/source/libs/catalog/src/catalog.c
index b5c7f44f98..d4da79f968 100644
--- a/source/libs/catalog/src/catalog.c
+++ b/source/libs/catalog/src/catalog.c
@@ -1556,39 +1556,43 @@ int32_t ctgGetTableMeta(SCatalog* pCtg, void *pRpc, const SEpSet* pMgmtEps, cons
 
   STableMetaOutput *output = NULL;
 
-  CTG_ERR_JRET(ctgRefreshTblMeta(pCtg, pRpc, pMgmtEps, pTableName, isSTable, &output));
+  while (true) {
+    CTG_ERR_JRET(ctgRefreshTblMeta(pCtg, pRpc, pMgmtEps, pTableName, isSTable, &output));
 
-  if (CTG_IS_META_TABLE(output->metaType)) {
-    *pTableMeta = output->tbMeta;
-    goto _return;
-  }
+    if (CTG_IS_META_TABLE(output->metaType)) {
+      *pTableMeta = output->tbMeta;
+      goto _return;
+    }
 
-  if (CTG_IS_META_BOTH(output->metaType)) {
-    memcpy(output->tbMeta, &output->ctbMeta, sizeof(output->ctbMeta));
+    if (CTG_IS_META_BOTH(output->metaType)) {
+      memcpy(output->tbMeta, &output->ctbMeta, sizeof(output->ctbMeta));
+      
+      *pTableMeta = output->tbMeta;
+      goto _return;
+    }
+
+    if ((!CTG_IS_META_CTABLE(output->metaType)) || output->tbMeta) {
+      ctgError("invalid metaType:%d", output->metaType);
+      tfree(output->tbMeta);
+      CTG_ERR_JRET(TSDB_CODE_CTG_INTERNAL_ERROR);
+    }
+
+    // HANDLE ONLY CHILD TABLE META
+
+    SName stbName = *pTableName;
+    strcpy(stbName.tname, output->tbName);
     
-    *pTableMeta = output->tbMeta;
-    goto _return;
+    CTG_ERR_JRET(ctgGetTableMetaFromCache(pCtg, &stbName, pTableMeta, &exist));
+    if (0 == exist) {
+      ctgDebug("stb no longer exist, dbFName:%s, tbName:%s", output->dbFName, pTableName->tname);
+      continue;
+    }
+
+    memcpy(*pTableMeta, &output->ctbMeta, sizeof(output->ctbMeta));
+
+    break;
   }
 
-  if ((!CTG_IS_META_CTABLE(output->metaType)) || output->tbMeta) {
-    ctgError("invalid metaType:%d", output->metaType);
-    tfree(output->tbMeta);
-    CTG_ERR_JRET(TSDB_CODE_CTG_INTERNAL_ERROR);
-  }
-
-  // HANDLE ONLY CHILD TABLE META
-
-  SName stbName = *pTableName;
-  strcpy(stbName.tname, output->tbName);
-  
-  CTG_ERR_JRET(ctgGetTableMetaFromCache(pCtg, &stbName, pTableMeta, &exist));
-  if (0 == exist) {
-    ctgDebug("stb no longer exist, dbFName:%s, tbName:%s", output->dbFName, pTableName->tname);
-    CTG_ERR_JRET(TSDB_CODE_VND_TB_NOT_EXIST);
-  }
-
-  memcpy(*pTableMeta, &output->ctbMeta, sizeof(output->ctbMeta));
-
 _return:
 
   tfree(output);

From 9cf07ff8f09bb091845e6acf6f1cc23e01f1cf15 Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Mon, 21 Feb 2022 22:36:00 +0800
Subject: [PATCH 08/12] add more UT test

---
 source/libs/transport/src/transCli.c  |   1 -
 source/libs/transport/src/transSrv.c  |  19 ++-
 source/libs/transport/test/transUT.cc | 214 ++++++++++++++++++++------
 3 files changed, 184 insertions(+), 50 deletions(-)

diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 4ed1cc2e73..f29c47c21e 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -350,7 +350,6 @@ static void clientReadCb(uv_stream_t* handle, ssize_t nread, const uv_buf_t* buf
   if (nread > 0) {
     pBuf->len += nread;
     if (clientReadComplete(pBuf)) {
-      // uv_read_stop((uv_stream_t*)conn->stream);
       tTrace("client conn %p read complete", conn);
       clientHandleResp(conn);
     } else {
diff --git a/source/libs/transport/src/transSrv.c b/source/libs/transport/src/transSrv.c
index 5292bad209..a038f72adc 100644
--- a/source/libs/transport/src/transSrv.c
+++ b/source/libs/transport/src/transSrv.c
@@ -96,6 +96,7 @@ static void uvOnAcceptCb(uv_stream_t* stream, int status);
 static void uvOnConnectionCb(uv_stream_t* q, ssize_t nread, const uv_buf_t* buf);
 static void uvWorkerAsyncCb(uv_async_t* handle);
 static void uvAcceptAsyncCb(uv_async_t* handle);
+static void uvShutDownCb(uv_shutdown_t* req, int status);
 
 static void uvStartSendRespInternal(SSrvMsg* smsg);
 static void uvPrepareSendData(SSrvMsg* msg, uv_buf_t* wb);
@@ -446,6 +447,8 @@ void uvWorkerAsyncCb(uv_async_t* handle) {
       free(msg);
 
       destroyAllConn(pThrd);
+
+      uv_loop_close(pThrd->loop);
       uv_stop(pThrd->loop);
     } else {
       uvStartSendResp(msg);
@@ -463,6 +466,12 @@ static void uvAcceptAsyncCb(uv_async_t* async) {
   uv_stop(srv->loop);
 }
 
+static void uvShutDownCb(uv_shutdown_t* req, int status) {
+  tDebug("conn failed to shut down: %s", uv_err_name(status));
+  uv_close((uv_handle_t*)req->handle, uvDestroyConn);
+  free(req);
+}
+
 void uvOnAcceptCb(uv_stream_t* stream, int status) {
   if (status == -1) {
     return;
@@ -528,8 +537,8 @@ void uvOnConnectionCb(uv_stream_t* q, ssize_t nread, const uv_buf_t* buf) {
   uv_tcp_init(pThrd->loop, pConn->pTcp);
   pConn->pTcp->data = pConn;
 
-  uv_tcp_nodelay(pConn->pTcp, 1);
-  uv_tcp_keepalive(pConn->pTcp, 1, 1);
+  // uv_tcp_nodelay(pConn->pTcp, 1);
+  // uv_tcp_keepalive(pConn->pTcp, 1, 1);
 
   // init write request, just
   pConn->pWriter = calloc(1, sizeof(uv_write_t));
@@ -656,7 +665,11 @@ static void destroyConn(SSrvConn* conn, bool clear) {
   QUEUE_REMOVE(&conn->queue);
 
   if (clear) {
+    tTrace("try to destroy conn %p", conn);
     uv_tcp_close_reset(conn->pTcp, uvDestroyConn);
+    // uv_shutdown_t* req = malloc(sizeof(uv_shutdown_t));
+    // uv_shutdown(req, (uv_stream_t*)conn->pTcp, uvShutDownCb);
+    // uv_unref((uv_handle_t*)conn->pTcp);
     // uv_close((uv_handle_t*)conn->pTcp, uvDestroyConn);
   }
 }
@@ -665,7 +678,7 @@ static void uvDestroyConn(uv_handle_t* handle) {
   tDebug("server conn %p destroy", conn);
   uv_timer_stop(conn->pTimer);
   // free(conn->pTimer);
-  // free(conn->pTcp);
+  free(conn->pTcp);
   free(conn->pWriter);
   free(conn);
 }
diff --git a/source/libs/transport/test/transUT.cc b/source/libs/transport/test/transUT.cc
index 6f80ea42ac..d1fefe2c72 100644
--- a/source/libs/transport/test/transUT.cc
+++ b/source/libs/transport/test/transUT.cc
@@ -16,69 +16,168 @@
 #include <cstdio>
 #include <cstring>
 #include "tep.h"
+#include "tglobal.h"
 #include "trpc.h"
+#include "ulog.h"
 using namespace std;
 
-class TransObj {
- public:
-  TransObj() {
-    const char *label = "APP";
-    const char *secret = "secret";
-    const char *user = "user";
-    const char *ckey = "ckey";
+const char *label = "APP";
+const char *secret = "secret";
+const char *user = "user";
+const char *ckey = "ckey";
 
+class Server;
+int port = 7000;
+// server process
+static void processReq(void *parent, SRpcMsg *pMsg, SEpSet *pEpSet);
+// client process;
+static void processResp(void *parent, SRpcMsg *pMsg, SEpSet *pEpSet);
+class Client {
+ public:
+  void Init(int nThread) {
     memset(&rpcInit, 0, sizeof(rpcInit));
     rpcInit.localPort = 0;
     rpcInit.label = (char *)label;
-    rpcInit.numOfThreads = 5;
-    rpcInit.cfp = NULL;
-    rpcInit.sessions = 100;
-    rpcInit.idleTime = 100;
+    rpcInit.numOfThreads = nThread;
+    rpcInit.cfp = processResp;
     rpcInit.user = (char *)user;
     rpcInit.secret = (char *)secret;
     rpcInit.ckey = (char *)ckey;
     rpcInit.spi = 1;
-  }
-  bool startCli() {
-    trans = NULL;
+    rpcInit.parent = this;
     rpcInit.connType = TAOS_CONN_CLIENT;
-    trans = rpcOpen(&rpcInit);
-    return trans != NULL ? true : false;
+    this->transCli = rpcOpen(&rpcInit);
+    tsem_init(&this->sem, 0, 0);
   }
-  bool startSrv() {
-    trans = NULL;
-    rpcInit.connType = TAOS_CONN_SERVER;
-    trans = rpcOpen(&rpcInit);
-    return trans != NULL ? true : false;
+  void SetResp(SRpcMsg *pMsg) {
+    // set up resp;
+    this->resp = *pMsg;
+  }
+  SRpcMsg *Resp() { return &this->resp; }
+
+  void Restart() {
+    rpcClose(this->transCli);
+    this->transCli = rpcOpen(&rpcInit);
   }
 
-  bool sendAndRecv() {
+  void SendAndRecv(SRpcMsg *req, SRpcMsg *resp) {
     SEpSet epSet = {0};
     epSet.inUse = 0;
-    addEpIntoEpSet(&epSet, "192.168.1.1", 7000);
-    addEpIntoEpSet(&epSet, "192.168.0.1", 7000);
+    addEpIntoEpSet(&epSet, "127.0.0.1", 7000);
 
-    if (trans == NULL) {
-      return false;
-    }
-    SRpcMsg rpcMsg = {0}, reqMsg = {0};
-    reqMsg.pCont = rpcMallocCont(10);
-    reqMsg.contLen = 10;
-    reqMsg.ahandle = NULL;
-    rpcSendRecv(trans, &epSet, &reqMsg, &rpcMsg);
-    int code = rpcMsg.code;
-    std::cout << tstrerror(code) << std::endl;
-    return true;
+    rpcSendRequest(this->transCli, &epSet, req, NULL);
+    SemWait();
+    *resp = this->resp;
   }
-  bool stop() {
-    rpcClose(trans);
-    trans = NULL;
-    return true;
+  void SemWait() { tsem_wait(&this->sem); }
+  void SemPost() { tsem_post(&this->sem); }
+  void Reset() {}
+
+  ~Client() {
+    if (this->transCli) rpcClose(this->transCli);
   }
 
  private:
-  void *   trans;
+  tsem_t   sem;
   SRpcInit rpcInit;
+  void *   transCli;
+  SRpcMsg  resp;
+};
+class Server {
+ public:
+  Server() {
+    memset(&rpcInit, 0, sizeof(rpcInit));
+    rpcInit.localPort = port;
+    rpcInit.label = (char *)label;
+    rpcInit.numOfThreads = 5;
+    rpcInit.cfp = processReq;
+    rpcInit.user = (char *)user;
+    rpcInit.secret = (char *)secret;
+    rpcInit.ckey = (char *)ckey;
+    rpcInit.spi = 1;
+    rpcInit.connType = TAOS_CONN_SERVER;
+  }
+  void Start() {
+    this->transSrv = rpcOpen(&this->rpcInit);
+    taosMsleep(1000);
+  }
+  void Stop() {
+    if (this->transSrv == NULL) return;
+    rpcClose(this->transSrv);
+    this->transSrv = NULL;
+  }
+  void Restart() {
+    this->Stop();
+    this->Start();
+  }
+  ~Server() {
+    if (this->transSrv) rpcClose(this->transSrv);
+    this->transSrv = NULL;
+  }
+
+ private:
+  SRpcInit rpcInit;
+  void *   transSrv;
+};
+static void processReq(void *parent, SRpcMsg *pMsg, SEpSet *pEpSet) {
+  SRpcMsg rpcMsg = {0};
+  rpcMsg.pCont = rpcMallocCont(100);
+  rpcMsg.contLen = 100;
+  rpcMsg.handle = pMsg->handle;
+  rpcMsg.code = 0;
+  rpcSendResponse(&rpcMsg);
+}
+// client process;
+static void processResp(void *parent, SRpcMsg *pMsg, SEpSet *pEpSet) {
+  Client *client = (Client *)parent;
+  client->SetResp(pMsg);
+  client->SemPost();
+}
+class TransObj {
+ public:
+  TransObj() {
+    dDebugFlag = 143;
+    vDebugFlag = 0;
+    mDebugFlag = 143;
+    cDebugFlag = 0;
+    jniDebugFlag = 0;
+    tmrDebugFlag = 143;
+    uDebugFlag = 143;
+    rpcDebugFlag = 143;
+    qDebugFlag = 0;
+    wDebugFlag = 0;
+    sDebugFlag = 0;
+    tsdbDebugFlag = 0;
+    cqDebugFlag = 0;
+    tscEmbeddedInUtil = 1;
+    tsAsyncLog = 0;
+
+    std::string path = "/tmp/transport";
+    taosRemoveDir(path.c_str());
+    taosMkDir(path.c_str());
+
+    char temp[PATH_MAX];
+    snprintf(temp, PATH_MAX, "%s/taosdlog", path.c_str());
+    if (taosInitLog(temp, tsNumOfLogLines, 1) != 0) {
+      printf("failed to init log file\n");
+    }
+    cli = new Client;
+    cli->Init(1);
+    srv = new Server;
+    srv->Start();
+  }
+  void RestartCli() { cli->Restart(); }
+  void StopSrv() { srv->Stop(); }
+  void RestartSrv() { srv->Restart(); }
+  void cliSendAndRecv(SRpcMsg *req, SRpcMsg *resp) { cli->SendAndRecv(req, resp); }
+  ~TransObj() {
+    delete cli;
+    delete srv;
+  }
+
+ private:
+  Client *cli;
+  Server *srv;
 };
 class TransEnv : public ::testing::Test {
  protected:
@@ -93,11 +192,34 @@ class TransEnv : public ::testing::Test {
 
   TransObj *tr = NULL;
 };
-TEST_F(TransEnv, test_start_stop) {
-  assert(tr->startCli());
-  assert(tr->sendAndRecv());
-  assert(tr->stop());
 
-  assert(tr->startSrv());
-  assert(tr->stop());
+// TEST_F(TransEnv, 01sendAndRec) {
+//  for (int i = 0; i < 1; i++) {
+//    SRpcMsg req = {0}, resp = {0};
+//    req.msgType = 0;
+//    req.pCont = rpcMallocCont(10);
+//    req.contLen = 10;
+//    tr->cliSendAndRecv(&req, &resp);
+//    assert(resp.code == 0);
+//  }
+//}
+
+TEST_F(TransEnv, 02StopServer) {
+  for (int i = 0; i < 1; i++) {
+    SRpcMsg req = {0}, resp = {0};
+    req.msgType = 0;
+    req.pCont = rpcMallocCont(10);
+    req.contLen = 10;
+    tr->cliSendAndRecv(&req, &resp);
+    assert(resp.code == 0);
+  }
+  SRpcMsg req = {0}, resp = {0};
+  req.msgType = 1;
+  req.pCont = rpcMallocCont(10);
+  req.contLen = 10;
+  tr->StopSrv();
+  // tr->RestartSrv();
+  tr->cliSendAndRecv(&req, &resp);
+
+  assert(resp.code != 0);
 }

From 74ccfaec3fbcab0bfd293c5cf5de741cb4b449f5 Mon Sep 17 00:00:00 2001
From: dapan <wpan@taosdata.com>
Date: Tue, 22 Feb 2022 11:22:13 +0800
Subject: [PATCH 09/12] fix dbid issue

---
 source/dnode/vnode/src/vnd/vnodeQuery.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/dnode/vnode/src/vnd/vnodeQuery.c b/source/dnode/vnode/src/vnd/vnodeQuery.c
index f779949f14..4b47413715 100644
--- a/source/dnode/vnode/src/vnd/vnodeQuery.c
+++ b/source/dnode/vnode/src/vnd/vnodeQuery.c
@@ -126,7 +126,7 @@ static int vnodeGetTableMeta(SVnode *pVnode, SRpcMsg *pMsg) {
     goto _exit;
   }
 
-  metaRsp.dbId = htobe64(pVnode->config.dbId);
+  metaRsp.dbId = pVnode->config.dbId;
   memcpy(metaRsp.dbFName, infoReq.dbFName, sizeof(metaRsp.dbFName));
   strcpy(metaRsp.tbName, infoReq.tbName);
   if (pTbCfg->type == META_CHILD_TABLE) {

From be375fa143252f755e29e8b408ac5ad742078861 Mon Sep 17 00:00:00 2001
From: Minghao Li <castermode@gmail.com>
Date: Tue, 22 Feb 2022 11:28:15 +0800
Subject: [PATCH 10/12] add sync code

---
 include/libs/sync/sync.h                      |  11 +-
 source/libs/sync/CMakeLists.txt               |   1 -
 source/libs/sync/inc/syncAppendEntries.h      |  38 ++++++
 source/libs/sync/inc/syncAppendEntriesReply.h |  36 ++++++
 source/libs/sync/inc/syncElection.h           |  32 +++++
 source/libs/sync/inc/syncInt.h                |  79 ++++++++++++
 source/libs/sync/inc/syncMessage.h            | 105 ++++++++++++++++
 source/libs/sync/inc/syncOnMessage.h          |  35 ++++++
 source/libs/sync/inc/syncRaft.h               |  47 +++++++
 source/libs/sync/inc/syncRaftEntry.h          |  40 ++++++
 source/libs/sync/inc/syncRaftLog.h            |  53 ++++++++
 source/libs/sync/inc/syncRaftStore.h          |  42 +++++++
 source/libs/sync/inc/syncReplication.h        |  32 +++++
 source/libs/sync/inc/syncRequestVote.h        |  38 ++++++
 source/libs/sync/inc/syncRequestVoteReply.h   |  36 ++++++
 source/libs/sync/inc/syncSnapshot.h           |  38 ++++++
 source/libs/sync/inc/syncTimeout.h            |  36 ++++++
 source/libs/sync/src/sync.c                   |   1 -
 source/libs/sync/src/syncAppendEntries.c      | 117 ++++++++++++++++++
 source/libs/sync/src/syncAppendEntriesReply.c |  34 +++++
 source/libs/sync/src/syncElection.c           |  16 +++
 source/libs/sync/src/syncMain.c               |  34 +++++
 source/libs/sync/src/syncMessage.c            |  20 +++
 source/libs/sync/src/syncOnMessage.c          |  16 +++
 source/libs/sync/src/syncRaft.c               |  21 ++++
 source/libs/sync/src/syncRaftEntry.c          |  16 +++
 source/libs/sync/src/syncRaftLog.c            |  37 ++++++
 source/libs/sync/src/syncRaftStore.c          |  25 ++++
 source/libs/sync/src/syncReplication.c        |  16 +++
 source/libs/sync/src/syncRequestVote.c        |  59 +++++++++
 source/libs/sync/src/syncRequestVoteReply.c   |  38 ++++++
 source/libs/sync/src/syncSnapshot.c           |  22 ++++
 source/libs/sync/src/syncTimeout.c            |  19 +++
 source/libs/sync/test/syncTest.cpp            |   7 ++
 34 files changed, 1189 insertions(+), 8 deletions(-)
 create mode 100644 source/libs/sync/inc/syncAppendEntries.h
 create mode 100644 source/libs/sync/inc/syncAppendEntriesReply.h
 create mode 100644 source/libs/sync/inc/syncElection.h
 create mode 100644 source/libs/sync/inc/syncInt.h
 create mode 100644 source/libs/sync/inc/syncMessage.h
 create mode 100644 source/libs/sync/inc/syncOnMessage.h
 create mode 100644 source/libs/sync/inc/syncRaft.h
 create mode 100644 source/libs/sync/inc/syncRaftEntry.h
 create mode 100644 source/libs/sync/inc/syncRaftLog.h
 create mode 100644 source/libs/sync/inc/syncRaftStore.h
 create mode 100644 source/libs/sync/inc/syncReplication.h
 create mode 100644 source/libs/sync/inc/syncRequestVote.h
 create mode 100644 source/libs/sync/inc/syncRequestVoteReply.h
 create mode 100644 source/libs/sync/inc/syncSnapshot.h
 create mode 100644 source/libs/sync/inc/syncTimeout.h
 delete mode 100644 source/libs/sync/src/sync.c
 create mode 100644 source/libs/sync/src/syncAppendEntries.c
 create mode 100644 source/libs/sync/src/syncAppendEntriesReply.c
 create mode 100644 source/libs/sync/src/syncElection.c
 create mode 100644 source/libs/sync/src/syncMain.c
 create mode 100644 source/libs/sync/src/syncMessage.c
 create mode 100644 source/libs/sync/src/syncOnMessage.c
 create mode 100644 source/libs/sync/src/syncRaft.c
 create mode 100644 source/libs/sync/src/syncRaftEntry.c
 create mode 100644 source/libs/sync/src/syncRaftLog.c
 create mode 100644 source/libs/sync/src/syncRaftStore.c
 create mode 100644 source/libs/sync/src/syncReplication.c
 create mode 100644 source/libs/sync/src/syncRequestVote.c
 create mode 100644 source/libs/sync/src/syncRequestVoteReply.c
 create mode 100644 source/libs/sync/src/syncSnapshot.c
 create mode 100644 source/libs/sync/src/syncTimeout.c
 create mode 100644 source/libs/sync/test/syncTest.cpp

diff --git a/include/libs/sync/sync.h b/include/libs/sync/sync.h
index 00ba1120e7..0ec741ec3e 100644
--- a/include/libs/sync/sync.h
+++ b/include/libs/sync/sync.h
@@ -137,22 +137,21 @@ typedef struct {
 
 } SSyncInfo;
 
-// will be defined in syncInt.h, here just for complie
-typedef struct SSyncNode {
-} SSyncNode;
+struct SSyncNode;
+typedef struct SSyncNode SSyncNode;
 
 int32_t syncInit();
 void    syncCleanUp();
 
-int64_t syncStart(const SSyncInfo*);
+int64_t syncStart(const SSyncInfo* pSyncInfo);
 void    syncStop(int64_t rid);
-int32_t syncReconfig(int64_t rid, const SSyncCfg*);
+int32_t syncReconfig(int64_t rid, const SSyncCfg* pSyncCfg);
 
 // int32_t syncForwardToPeer(int64_t rid, const SRpcMsg* pBuf, bool isWeak);
 int32_t syncForwardToPeer(int64_t rid, const SSyncBuffer* pBuf, bool isWeak);
 
 ESyncState syncGetMyRole(int64_t rid);
-void       syncGetNodesRole(int64_t rid, SNodesRole*);
+void       syncGetNodesRole(int64_t rid, SNodesRole* pNodeRole);
 
 extern int32_t sDebugFlag;
 
diff --git a/source/libs/sync/CMakeLists.txt b/source/libs/sync/CMakeLists.txt
index 784a864451..37ee5194c8 100644
--- a/source/libs/sync/CMakeLists.txt
+++ b/source/libs/sync/CMakeLists.txt
@@ -1,4 +1,3 @@
-
 aux_source_directory(src SYNC_SRC)
 add_library(sync ${SYNC_SRC})
 
diff --git a/source/libs/sync/inc/syncAppendEntries.h b/source/libs/sync/inc/syncAppendEntries.h
new file mode 100644
index 0000000000..9ca0de19c5
--- /dev/null
+++ b/source/libs/sync/inc/syncAppendEntries.h
@@ -0,0 +1,38 @@
+/*
+ * 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_APPEND_ENTRIES_H
+#define _TD_LIBS_SYNC_APPEND_ENTRIES_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "syncMessage.h"
+#include "syncRaft.h"
+#include "taosdef.h"
+
+void appendEntries(SRaft *pRaft, const SyncAppendEntries *pMsg);
+
+void onAppendEntries(SRaft *pRaft, const SyncAppendEntries *pMsg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_APPEND_ENTRIES_H*/
diff --git a/source/libs/sync/inc/syncAppendEntriesReply.h b/source/libs/sync/inc/syncAppendEntriesReply.h
new file mode 100644
index 0000000000..8b5cbf1da5
--- /dev/null
+++ b/source/libs/sync/inc/syncAppendEntriesReply.h
@@ -0,0 +1,36 @@
+/*
+ * 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_APPEND_ENTRIES_REPLY_H
+#define _TD_LIBS_SYNC_APPEND_ENTRIES_REPLY_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "syncMessage.h"
+#include "syncRaft.h"
+#include "taosdef.h"
+
+void onAppendEntriesReply(SRaft *pRaft, const SyncAppendEntriesReply *pMsg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_APPEND_ENTRIES_REPLY_H*/
diff --git a/source/libs/sync/inc/syncElection.h b/source/libs/sync/inc/syncElection.h
new file mode 100644
index 0000000000..34dfdb3d09
--- /dev/null
+++ b/source/libs/sync/inc/syncElection.h
@@ -0,0 +1,32 @@
+/*
+ * 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_ELECTION_H
+#define _TD_LIBS_SYNC_ELECTION_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "taosdef.h"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_ELECTION_H*/
diff --git a/source/libs/sync/inc/syncInt.h b/source/libs/sync/inc/syncInt.h
new file mode 100644
index 0000000000..551ce83122
--- /dev/null
+++ b/source/libs/sync/inc/syncInt.h
@@ -0,0 +1,79 @@
+/*
+ * 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_INT_H
+#define _TD_LIBS_SYNC_INT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "taosdef.h"
+
+#define sFatal(...)                                        \
+  {                                                        \
+    if (sDebugFlag & DEBUG_FATAL) {                        \
+      taosPrintLog("SYN FATAL ", sDebugFlag, __VA_ARGS__); \
+    }                                                      \
+  }
+#define sError(...)                                        \
+  {                                                        \
+    if (sDebugFlag & DEBUG_ERROR) {                        \
+      taosPrintLog("SYN ERROR ", sDebugFlag, __VA_ARGS__); \
+    }                                                      \
+  }
+#define sWarn(...)                                        \
+  {                                                       \
+    if (sDebugFlag & DEBUG_WARN) {                        \
+      taosPrintLog("SYN WARN ", sDebugFlag, __VA_ARGS__); \
+    }                                                     \
+  }
+#define sInfo(...)                                   \
+  {                                                  \
+    if (sDebugFlag & DEBUG_INFO) {                   \
+      taosPrintLog("SYN ", sDebugFlag, __VA_ARGS__); \
+    }                                                \
+  }
+#define sDebug(...)                                  \
+  {                                                  \
+    if (sDebugFlag & DEBUG_DEBUG) {                  \
+      taosPrintLog("SYN ", sDebugFlag, __VA_ARGS__); \
+    }                                                \
+  }
+#define sTrace(...)                                  \
+  {                                                  \
+    if (sDebugFlag & DEBUG_TRACE) {                  \
+      taosPrintLog("SYN ", sDebugFlag, __VA_ARGS__); \
+    }                                                \
+  }
+
+typedef struct SSyncNode {
+  char     path[TSDB_FILENAME_LEN];
+  int8_t   replica;
+  int8_t   quorum;
+  int8_t   selfIndex;
+  uint32_t vgId;
+  int32_t  refCount;
+  int64_t  rid;
+} SSyncNode;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_INT_H*/
diff --git a/source/libs/sync/inc/syncMessage.h b/source/libs/sync/inc/syncMessage.h
new file mode 100644
index 0000000000..f410c8cf6e
--- /dev/null
+++ b/source/libs/sync/inc/syncMessage.h
@@ -0,0 +1,105 @@
+/*
+ * 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_MESSAGE_H
+#define _TD_LIBS_SYNC_MESSAGE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "sync.h"
+#include "syncRaftEntry.h"
+#include "taosdef.h"
+
+typedef enum ESyncMessageType {
+  SYNC_PING = 0,
+  SYNC_PING_REPLY,
+  SYNC_CLIENT_REQUEST,
+  SYNC_CLIENT_REQUEST_REPLY,
+  SYNC_REQUEST_VOTE,
+  SYNC_REQUEST_VOTE_REPLY,
+  SYNC_APPEND_ENTRIES,
+  SYNC_APPEND_ENTRIES_REPLY,
+} ESyncMessageType;
+
+typedef struct SyncPing {
+  ESyncMessageType   msgType;
+  const SSyncBuffer *pData;
+} SyncPing;
+
+typedef struct SyncPingReply {
+  ESyncMessageType   msgType;
+  const SSyncBuffer *pData;
+} SyncPingReply;
+
+typedef struct SyncClientRequest {
+  ESyncMessageType   msgType;
+  const SSyncBuffer *pData;
+  int64_t            seqNum;
+  bool               isWeak;
+} SyncClientRequest;
+
+typedef struct SyncClientRequestReply {
+  ESyncMessageType   msgType;
+  int32_t            errCode;
+  const SSyncBuffer *pErrMsg;
+  const SSyncBuffer *pLeaderHint;
+} SyncClientRequestReply;
+
+typedef struct SyncRequestVote {
+  ESyncMessageType msgType;
+  SyncTerm         currentTerm;
+  SyncNodeId       nodeId;
+  SyncGroupId      vgId;
+  SyncIndex        lastLogIndex;
+  SyncTerm         lastLogTerm;
+} SyncRequestVote;
+
+typedef struct SyncRequestVoteReply {
+  ESyncMessageType msgType;
+  SyncTerm         currentTerm;
+  SyncNodeId       nodeId;
+  SyncGroupId      vgId;
+  bool             voteGranted;
+} SyncRequestVoteReply;
+
+typedef struct SyncAppendEntries {
+  ESyncMessageType msgType;
+  SyncTerm         currentTerm;
+  SyncNodeId       nodeId;
+  SyncIndex        prevLogIndex;
+  SyncTerm         prevLogTerm;
+  int32_t          entryCount;
+  SSyncRaftEntry * logEntries;
+  SyncIndex        commitIndex;
+} SyncAppendEntries;
+
+typedef struct SyncAppendEntriesReply {
+  ESyncMessageType msgType;
+  SyncTerm         currentTerm;
+  SyncNodeId       nodeId;
+  bool             success;
+  SyncIndex        matchIndex;
+} SyncAppendEntriesReply;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_MESSAGE_H*/
diff --git a/source/libs/sync/inc/syncOnMessage.h b/source/libs/sync/inc/syncOnMessage.h
new file mode 100644
index 0000000000..07c44b6199
--- /dev/null
+++ b/source/libs/sync/inc/syncOnMessage.h
@@ -0,0 +1,35 @@
+/*
+ * 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_ON_MESSAGE_H
+#define _TD_LIBS_SYNC_ON_MESSAGE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "syncRaft.h"
+#include "taosdef.h"
+
+void onMessage(SRaft *pRaft, void *pMsg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_ON_MESSAGE_H*/
diff --git a/source/libs/sync/inc/syncRaft.h b/source/libs/sync/inc/syncRaft.h
new file mode 100644
index 0000000000..0c7e573572
--- /dev/null
+++ b/source/libs/sync/inc/syncRaft.h
@@ -0,0 +1,47 @@
+/*
+ * 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_RAFT_H
+#define _TD_LIBS_SYNC_RAFT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "sync.h"
+#include "syncMessage.h"
+#include "taosdef.h"
+
+typedef struct SRaftId {
+  SyncNodeId  nodeId;
+  SyncGroupId vgId;
+} SRaftId;
+
+typedef struct SRaft {
+  SRaftId id;
+} SRaft;
+
+int32_t raftPropose(SRaft* pRaft, const SSyncBuffer* pBuf, bool isWeak);
+
+static int raftSendMsg(SRaftId destRaftId, const void* pMsg, const SRaft* pRaft);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_RAFT_H*/
diff --git a/source/libs/sync/inc/syncRaftEntry.h b/source/libs/sync/inc/syncRaftEntry.h
new file mode 100644
index 0000000000..adc82f2c5d
--- /dev/null
+++ b/source/libs/sync/inc/syncRaftEntry.h
@@ -0,0 +1,40 @@
+/*
+ * 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_TPL_H
+#define _TD_LIBS_TPL_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "sync.h"
+#include "taosdef.h"
+
+typedef struct SSyncRaftEntry {
+  SyncTerm    term;
+  SyncIndex   index;
+  SSyncBuffer data;
+  int8_t      flag;
+} SSyncRaftEntry;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_TPL_H*/
diff --git a/source/libs/sync/inc/syncRaftLog.h b/source/libs/sync/inc/syncRaftLog.h
new file mode 100644
index 0000000000..8c4b5116ea
--- /dev/null
+++ b/source/libs/sync/inc/syncRaftLog.h
@@ -0,0 +1,53 @@
+/*
+ * 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_RAFT_LOG_H
+#define _TD_LIBS_SYNC_RAFT_LOG_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "sync.h"
+#include "taosdef.h"
+
+int32_t raftLogAppendEntry(struct SSyncLogStore* pLogStore, SSyncBuffer* pBuf);
+
+// get one log entry, user need to free pBuf->data
+int32_t raftLogGetEntry(struct SSyncLogStore* pLogStore, SyncIndex index, SSyncBuffer* pBuf);
+
+// update log store commit index with "index"
+int32_t raftLogUpdateCommitIndex(struct SSyncLogStore* pLogStore, SyncIndex index);
+
+// truncate log with index, entries after the given index (>index) will be deleted
+int32_t raftLogTruncate(struct SSyncLogStore* pLogStore, SyncIndex index);
+
+// return commit index of log
+SyncIndex raftLogGetCommitIndex(struct SSyncLogStore* pLogStore);
+
+// return index of last entry
+SyncIndex raftLogGetLastIndex(struct SSyncLogStore* pLogStore);
+
+// return term of last entry
+SyncTerm raftLogGetLastTerm(struct SSyncLogStore* pLogStore);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_RAFT_LOG_H*/
diff --git a/source/libs/sync/inc/syncRaftStore.h b/source/libs/sync/inc/syncRaftStore.h
new file mode 100644
index 0000000000..4cb852f34a
--- /dev/null
+++ b/source/libs/sync/inc/syncRaftStore.h
@@ -0,0 +1,42 @@
+/*
+ * 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_RAFT_STORE_H
+#define _TD_LIBS_SYNC_RAFT_STORE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "sync.h"
+#include "syncRaft.h"
+#include "taosdef.h"
+
+int32_t currentTerm(SyncTerm *pCurrentTerm);
+
+int32_t persistCurrentTerm(SyncTerm currentTerm);
+
+int32_t voteFor(SRaftId *pRaftId);
+
+int32_t persistVoteFor(SRaftId *pRaftId);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_RAFT_STORE_H*/
diff --git a/source/libs/sync/inc/syncReplication.h b/source/libs/sync/inc/syncReplication.h
new file mode 100644
index 0000000000..40c5ff790b
--- /dev/null
+++ b/source/libs/sync/inc/syncReplication.h
@@ -0,0 +1,32 @@
+/*
+ * 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_REPLICATION_H
+#define _TD_LIBS_SYNC_REPLICATION_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "taosdef.h"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_REPLICATION_H*/
diff --git a/source/libs/sync/inc/syncRequestVote.h b/source/libs/sync/inc/syncRequestVote.h
new file mode 100644
index 0000000000..3ff96bbe8f
--- /dev/null
+++ b/source/libs/sync/inc/syncRequestVote.h
@@ -0,0 +1,38 @@
+/*
+ * 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_REQUEST_VOTE_H
+#define _TD_LIBS_SYNC_REQUEST_VOTE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "syncMessage.h"
+#include "syncRaft.h"
+#include "taosdef.h"
+
+void requestVote(SRaft *pRaft, const SyncRequestVote *pMsg);
+
+void onRequestVote(SRaft *pRaft, const SyncRequestVote *pMsg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_REQUEST_VOTE_H*/
diff --git a/source/libs/sync/inc/syncRequestVoteReply.h b/source/libs/sync/inc/syncRequestVoteReply.h
new file mode 100644
index 0000000000..033ac89bc2
--- /dev/null
+++ b/source/libs/sync/inc/syncRequestVoteReply.h
@@ -0,0 +1,36 @@
+/*
+ * 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_REQUEST_VOTE_REPLY_H
+#define _TD_LIBS_SYNC_REQUEST_VOTE_REPLY_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "syncMessage.h"
+#include "syncRaft.h"
+#include "taosdef.h"
+
+void onRequestVoteReply(SRaft *pRaft, const SyncRequestVoteReply *pMsg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_REQUEST_VOTE_REPLY_H*/
diff --git a/source/libs/sync/inc/syncSnapshot.h b/source/libs/sync/inc/syncSnapshot.h
new file mode 100644
index 0000000000..3b6121578a
--- /dev/null
+++ b/source/libs/sync/inc/syncSnapshot.h
@@ -0,0 +1,38 @@
+/*
+ * 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_SNAPSHOT_H
+#define _TD_LIBS_SYNC_SNAPSHOT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "sync.h"
+#include "syncRaft.h"
+#include "taosdef.h"
+
+int32_t takeSnapshot(SSyncFSM *pFsm, SSnapshot *pSnapshot);
+
+int32_t restoreSnapshot(SSyncFSM *pFsm, SSnapshot *pSnapshot);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_SNAPSHOT_H*/
diff --git a/source/libs/sync/inc/syncTimeout.h b/source/libs/sync/inc/syncTimeout.h
new file mode 100644
index 0000000000..8159d2566c
--- /dev/null
+++ b/source/libs/sync/inc/syncTimeout.h
@@ -0,0 +1,36 @@
+/*
+ * 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_TIMEOUT_H
+#define _TD_LIBS_SYNC_TIMEOUT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "syncMessage.h"
+#include "syncRaft.h"
+#include "taosdef.h"
+
+void onTimeout(SRaft *pRaft, void *pMsg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_LIBS_SYNC_TIMEOUT_H*/
diff --git a/source/libs/sync/src/sync.c b/source/libs/sync/src/sync.c
deleted file mode 100644
index 7ded53b6e6..0000000000
--- a/source/libs/sync/src/sync.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "sync.h"
\ No newline at end of file
diff --git a/source/libs/sync/src/syncAppendEntries.c b/source/libs/sync/src/syncAppendEntries.c
new file mode 100644
index 0000000000..1286108664
--- /dev/null
+++ b/source/libs/sync/src/syncAppendEntries.c
@@ -0,0 +1,117 @@
+/*
+ * 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 "syncAppendEntries.h"
+#include "sync.h"
+
+void appendEntries(SRaft *pRaft, const SyncAppendEntries *pMsg) {
+
+// TLA+ Spec
+//AppendEntries(i, j) ==
+//    /\ i /= j
+//    /\ state[i] = Leader
+//    /\ LET prevLogIndex == nextIndex[i][j] - 1
+//           prevLogTerm == IF prevLogIndex > 0 THEN
+//                              log[i][prevLogIndex].term
+//                          ELSE
+//                              0
+//           \* Send up to 1 entry, constrained by the end of the log.
+//           lastEntry == Min({Len(log[i]), nextIndex[i][j]})
+//           entries == SubSeq(log[i], nextIndex[i][j], lastEntry)
+//       IN Send([mtype          |-> AppendEntriesRequest,
+//                mterm          |-> currentTerm[i],
+//                mprevLogIndex  |-> prevLogIndex,
+//                mprevLogTerm   |-> prevLogTerm,
+//                mentries       |-> entries,
+//                \* mlog is used as a history variable for the proof.
+//                \* It would not exist in a real implementation.
+//                mlog           |-> log[i],
+//                mcommitIndex   |-> Min({commitIndex[i], lastEntry}),
+//                msource        |-> i,
+//                mdest          |-> j])
+//    /\ UNCHANGED <<serverVars, candidateVars, leaderVars, logVars>>
+
+}
+
+void onAppendEntries(SRaft *pRaft, const SyncAppendEntries *pMsg) {
+
+// TLA+ Spec
+//HandleAppendEntriesRequest(i, j, m) ==
+//    LET logOk == \/ m.mprevLogIndex = 0
+//                 \/ /\ m.mprevLogIndex > 0
+//                    /\ m.mprevLogIndex <= Len(log[i])
+//                    /\ m.mprevLogTerm = log[i][m.mprevLogIndex].term
+//    IN /\ m.mterm <= currentTerm[i]
+//       /\ \/ /\ \* reject request
+//                \/ m.mterm < currentTerm[i]
+//                \/ /\ m.mterm = currentTerm[i]
+//                   /\ state[i] = Follower
+//                   /\ \lnot logOk
+//             /\ Reply([mtype           |-> AppendEntriesResponse,
+//                       mterm           |-> currentTerm[i],
+//                       msuccess        |-> FALSE,
+//                       mmatchIndex     |-> 0,
+//                       msource         |-> i,
+//                       mdest           |-> j],
+//                       m)
+//             /\ UNCHANGED <<serverVars, logVars>>
+//          \/ \* return to follower state
+//             /\ m.mterm = currentTerm[i]
+//             /\ state[i] = Candidate
+//             /\ state' = [state EXCEPT ![i] = Follower]
+//             /\ UNCHANGED <<currentTerm, votedFor, logVars, messages>>
+//          \/ \* accept request
+//             /\ m.mterm = currentTerm[i]
+//             /\ state[i] = Follower
+//             /\ logOk
+//             /\ LET index == m.mprevLogIndex + 1
+//                IN \/ \* already done with request
+//                       /\ \/ m.mentries = << >>
+//                          \/ /\ m.mentries /= << >>
+//                             /\ Len(log[i]) >= index
+//                             /\ log[i][index].term = m.mentries[1].term
+//                          \* This could make our commitIndex decrease (for
+//                          \* example if we process an old, duplicated request),
+//                          \* but that doesn't really affect anything.
+//                       /\ commitIndex' = [commitIndex EXCEPT ![i] =
+//                                              m.mcommitIndex]
+//                       /\ Reply([mtype           |-> AppendEntriesResponse,
+//                                 mterm           |-> currentTerm[i],
+//                                 msuccess        |-> TRUE,
+//                                 mmatchIndex     |-> m.mprevLogIndex +
+//                                                     Len(m.mentries),
+//                                 msource         |-> i,
+//                                 mdest           |-> j],
+//                                 m)
+//                       /\ UNCHANGED <<serverVars, log>>
+//                   \/ \* conflict: remove 1 entry
+//                       /\ m.mentries /= << >>
+//                       /\ Len(log[i]) >= index
+//                       /\ log[i][index].term /= m.mentries[1].term
+//                       /\ LET new == [index2 \in 1..(Len(log[i]) - 1) |->
+//                                          log[i][index2]]
+//                          IN log' = [log EXCEPT ![i] = new]
+//                       /\ UNCHANGED <<serverVars, commitIndex, messages>>
+//                   \/ \* no conflict: append entry
+//                       /\ m.mentries /= << >>
+//                       /\ Len(log[i]) = m.mprevLogIndex
+//                       /\ log' = [log EXCEPT ![i] =
+//                                      Append(log[i], m.mentries[1])]
+//                       /\ UNCHANGED <<serverVars, commitIndex, messages>>
+//       /\ UNCHANGED <<candidateVars, leaderVars>>
+//
+
+
+}
diff --git a/source/libs/sync/src/syncAppendEntriesReply.c b/source/libs/sync/src/syncAppendEntriesReply.c
new file mode 100644
index 0000000000..4a9055e172
--- /dev/null
+++ b/source/libs/sync/src/syncAppendEntriesReply.c
@@ -0,0 +1,34 @@
+/*
+ * 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 "syncAppendEntriesReply.h"
+#include "sync.h"
+
+void onAppendEntriesReply(SRaft *pRaft, const SyncAppendEntriesReply *pMsg) {
+
+// TLA+ Spec
+//HandleAppendEntriesResponse(i, j, m) ==
+//    /\ m.mterm = currentTerm[i]
+//    /\ \/ /\ m.msuccess \* successful
+//          /\ nextIndex'  = [nextIndex  EXCEPT ![i][j] = m.mmatchIndex + 1]
+//          /\ matchIndex' = [matchIndex EXCEPT ![i][j] = m.mmatchIndex]
+//       \/ /\ \lnot m.msuccess \* not successful
+//          /\ nextIndex' = [nextIndex EXCEPT ![i][j] =
+//                               Max({nextIndex[i][j] - 1, 1})]
+//          /\ UNCHANGED <<matchIndex>>
+//    /\ Discard(m)
+//    /\ UNCHANGED <<serverVars, candidateVars, logVars, elections>>
+
+}
diff --git a/source/libs/sync/src/syncElection.c b/source/libs/sync/src/syncElection.c
new file mode 100644
index 0000000000..738fc4c5e1
--- /dev/null
+++ b/source/libs/sync/src/syncElection.c
@@ -0,0 +1,16 @@
+/*
+ * 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 "sync.h"
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
new file mode 100644
index 0000000000..fbb969eb1c
--- /dev/null
+++ b/source/libs/sync/src/syncMain.c
@@ -0,0 +1,34 @@
+/*
+ * 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 <stdint.h>
+#include "sync.h"
+#include "syncInt.h"
+
+int32_t syncInit() { return 0; }
+
+void syncCleanUp() {}
+
+int64_t syncStart(const SSyncInfo* pSyncInfo) { return 0; }
+
+void syncStop(int64_t rid) {}
+
+int32_t syncReconfig(int64_t rid, const SSyncCfg* pSyncCfg) { return 0; }
+
+int32_t syncForwardToPeer(int64_t rid, const SSyncBuffer* pBuf, bool isWeak) { return 0; }
+
+ESyncState syncGetMyRole(int64_t rid) { return TAOS_SYNC_STATE_LEADER; }
+
+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
new file mode 100644
index 0000000000..dcfc940f76
--- /dev/null
+++ b/source/libs/sync/src/syncMessage.c
@@ -0,0 +1,20 @@
+/*
+ * 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 "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
new file mode 100644
index 0000000000..738fc4c5e1
--- /dev/null
+++ b/source/libs/sync/src/syncOnMessage.c
@@ -0,0 +1,16 @@
+/*
+ * 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 "sync.h"
diff --git a/source/libs/sync/src/syncRaft.c b/source/libs/sync/src/syncRaft.c
new file mode 100644
index 0000000000..85c2c6fe27
--- /dev/null
+++ b/source/libs/sync/src/syncRaft.c
@@ -0,0 +1,21 @@
+/*
+ * 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 "syncRaft.h"
+#include "sync.h"
+
+int32_t raftPropose(SRaft* pRaft, const SSyncBuffer* pBuf, bool isWeak) { return 0; }
+
+static int raftSendMsg(SRaftId destRaftId, const void* pMsg, const SRaft* pRaft) { return 0; }
diff --git a/source/libs/sync/src/syncRaftEntry.c b/source/libs/sync/src/syncRaftEntry.c
new file mode 100644
index 0000000000..738fc4c5e1
--- /dev/null
+++ b/source/libs/sync/src/syncRaftEntry.c
@@ -0,0 +1,16 @@
+/*
+ * 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 "sync.h"
diff --git a/source/libs/sync/src/syncRaftLog.c b/source/libs/sync/src/syncRaftLog.c
new file mode 100644
index 0000000000..4a5fc201b0
--- /dev/null
+++ b/source/libs/sync/src/syncRaftLog.c
@@ -0,0 +1,37 @@
+/*
+ * 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 "syncRaftLog.h"
+#include "sync.h"
+
+int32_t raftLogAppendEntry(struct SSyncLogStore* pLogStore, SSyncBuffer* pBuf) { return 0; }
+
+// get one log entry, user need to free pBuf->data
+int32_t raftLogGetEntry(struct SSyncLogStore* pLogStore, SyncIndex index, SSyncBuffer* pBuf) { return 0; }
+
+// update log store commit index with "index"
+int32_t raftLogupdateCommitIndex(struct SSyncLogStore* pLogStore, SyncIndex index) { return 0; }
+
+// truncate log with index, entries after the given index (>index) will be deleted
+int32_t raftLogTruncate(struct SSyncLogStore* pLogStore, SyncIndex index) { return 0; }
+
+// return commit index of log
+SyncIndex raftLogGetCommitIndex(struct SSyncLogStore* pLogStore) { return 0; }
+
+// return index of last entry
+SyncIndex raftLogGetLastIndex(struct SSyncLogStore* pLogStore) { return 0; }
+
+// return term of last entry
+SyncTerm raftLogGetLastTerm(struct SSyncLogStore* pLogStore) { return 0; }
\ No newline at end of file
diff --git a/source/libs/sync/src/syncRaftStore.c b/source/libs/sync/src/syncRaftStore.c
new file mode 100644
index 0000000000..d45e53132c
--- /dev/null
+++ b/source/libs/sync/src/syncRaftStore.c
@@ -0,0 +1,25 @@
+/*
+ * 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 "syncRaftStore.h"
+#include "sync.h"
+
+int32_t currentTerm(SyncTerm *pCurrentTerm) { return 0; }
+
+int32_t persistCurrentTerm(SyncTerm currentTerm) { return 0; }
+
+int32_t voteFor(SRaftId *pRaftId) { return 0; }
+
+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
new file mode 100644
index 0000000000..738fc4c5e1
--- /dev/null
+++ b/source/libs/sync/src/syncReplication.c
@@ -0,0 +1,16 @@
+/*
+ * 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 "sync.h"
diff --git a/source/libs/sync/src/syncRequestVote.c b/source/libs/sync/src/syncRequestVote.c
new file mode 100644
index 0000000000..c31ec0f34d
--- /dev/null
+++ b/source/libs/sync/src/syncRequestVote.c
@@ -0,0 +1,59 @@
+/*
+ * 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 "syncRequestVote.h"
+#include "sync.h"
+
+void requestVote(SRaft *pRaft, const SyncRequestVote *pMsg) {
+
+// TLA+ Spec
+//RequestVote(i, j) ==
+//    /\ state[i] = Candidate
+//    /\ j \notin votesResponded[i]
+//    /\ Send([mtype         |-> RequestVoteRequest,
+//             mterm         |-> currentTerm[i],
+//             mlastLogTerm  |-> LastTerm(log[i]),
+//             mlastLogIndex |-> Len(log[i]),
+//             msource       |-> i,
+//             mdest         |-> j])
+//    /\ UNCHANGED <<serverVars, candidateVars, leaderVars, logVars>>
+
+}
+
+void onRequestVote(SRaft *pRaft, const SyncRequestVote *pMsg) {
+
+// TLA+ Spec
+//HandleRequestVoteRequest(i, j, m) ==
+//    LET logOk == \/ m.mlastLogTerm > LastTerm(log[i])
+//                 \/ /\ m.mlastLogTerm = LastTerm(log[i])
+//                    /\ m.mlastLogIndex >= Len(log[i])
+//        grant == /\ m.mterm = currentTerm[i]
+//                 /\ logOk
+//                 /\ votedFor[i] \in {Nil, j}
+//    IN /\ m.mterm <= currentTerm[i]
+//       /\ \/ grant  /\ votedFor' = [votedFor EXCEPT ![i] = j]
+//          \/ ~grant /\ UNCHANGED votedFor
+//       /\ Reply([mtype        |-> RequestVoteResponse,
+//                 mterm        |-> currentTerm[i],
+//                 mvoteGranted |-> grant,
+//                 \* mlog is used just for the `elections' history variable for
+//                 \* the proof. It would not exist in a real implementation.
+//                 mlog         |-> log[i],
+//                 msource      |-> i,
+//                 mdest        |-> j],
+//                 m)
+//       /\ UNCHANGED <<state, currentTerm, candidateVars, leaderVars, logVars>>
+
+}
diff --git a/source/libs/sync/src/syncRequestVoteReply.c b/source/libs/sync/src/syncRequestVoteReply.c
new file mode 100644
index 0000000000..ba9787f00c
--- /dev/null
+++ b/source/libs/sync/src/syncRequestVoteReply.c
@@ -0,0 +1,38 @@
+/*
+ * 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 "syncRequestVoteReply.h"
+#include "sync.h"
+
+void onRequestVoteReply(SRaft *pRaft, const SyncRequestVoteReply *pMsg) {
+
+// TLA+ Spec
+//HandleRequestVoteResponse(i, j, m) ==
+//    \* This tallies votes even when the current state is not Candidate, but
+//    \* they won't be looked at, so it doesn't matter.
+//    /\ m.mterm = currentTerm[i]
+//    /\ votesResponded' = [votesResponded EXCEPT ![i] =
+//                              votesResponded[i] \cup {j}]
+//    /\ \/ /\ m.mvoteGranted
+//          /\ votesGranted' = [votesGranted EXCEPT ![i] =
+//                                  votesGranted[i] \cup {j}]
+//          /\ voterLog' = [voterLog EXCEPT ![i] =
+//                              voterLog[i] @@ (j :> m.mlog)]
+//       \/ /\ ~m.mvoteGranted
+//          /\ UNCHANGED <<votesGranted, voterLog>>
+//    /\ Discard(m)
+//    /\ UNCHANGED <<serverVars, votedFor, leaderVars, logVars>>
+
+}
diff --git a/source/libs/sync/src/syncSnapshot.c b/source/libs/sync/src/syncSnapshot.c
new file mode 100644
index 0000000000..8a27f097d1
--- /dev/null
+++ b/source/libs/sync/src/syncSnapshot.c
@@ -0,0 +1,22 @@
+/*
+ * 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 "syncSnapshot.h"
+#include "sync.h"
+#include "syncRaft.h"
+
+int32_t takeSnapshot(SSyncFSM *pFsm, SSnapshot *pSnapshot) { return 0; }
+
+int32_t restoreSnapshot(SSyncFSM *pFsm, SSnapshot *pSnapshot) { return 0; }
\ No newline at end of file
diff --git a/source/libs/sync/src/syncTimeout.c b/source/libs/sync/src/syncTimeout.c
new file mode 100644
index 0000000000..206dd70046
--- /dev/null
+++ b/source/libs/sync/src/syncTimeout.c
@@ -0,0 +1,19 @@
+/*
+ * 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 "syncTimeout.h"
+#include "sync.h"
+
+void onTimeout(SRaft *pRaft, void *pMsg) {}
\ No newline at end of file
diff --git a/source/libs/sync/test/syncTest.cpp b/source/libs/sync/test/syncTest.cpp
new file mode 100644
index 0000000000..47566d537e
--- /dev/null
+++ b/source/libs/sync/test/syncTest.cpp
@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main() {
+    printf("test \n");
+    return 0;
+}
+

From 5941437be1beff0ef47193c217607baa40b3f2f9 Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Tue, 22 Feb 2022 12:51:34 +0800
Subject: [PATCH 11/12] refactor code

---
 .../dnode/mgmt/impl/test/sut/src/client.cpp   |  5 ++-
 source/libs/transport/inc/transComm.h         |  9 ++--
 source/libs/transport/src/transCli.c          | 30 +------------
 source/libs/transport/src/transComm.c         | 22 ++++++----
 source/libs/transport/src/transSrv.c          | 42 +------------------
 5 files changed, 26 insertions(+), 82 deletions(-)

diff --git a/source/dnode/mgmt/impl/test/sut/src/client.cpp b/source/dnode/mgmt/impl/test/sut/src/client.cpp
index 589c015013..b89cb02834 100644
--- a/source/dnode/mgmt/impl/test/sut/src/client.cpp
+++ b/source/dnode/mgmt/impl/test/sut/src/client.cpp
@@ -24,6 +24,9 @@ static void processClientRsp(void* parent, SRpcMsg* pRsp, SEpSet* pEpSet) {
 }
 
 void TestClient::SetRpcRsp(SRpcMsg* rsp) {
+  if (this->pRsp) {
+    free(this->pRsp);
+  }
   this->pRsp = (SRpcMsg*)calloc(1, sizeof(SRpcMsg));
   this->pRsp->msgType = rsp->msgType;
   this->pRsp->code = rsp->code;
@@ -60,7 +63,7 @@ bool TestClient::Init(const char* user, const char* pass, const char* fqdn, uint
   strcpy(this->user, user);
   strcpy(this->pass, pass);
   this->port = port;
-  // this->pRsp = NULL;
+  this->pRsp = NULL;
   this->DoInit();
   return true;
 }
diff --git a/source/libs/transport/inc/transComm.h b/source/libs/transport/inc/transComm.h
index 2078a218ee..d4d9bff56c 100644
--- a/source/libs/transport/inc/transComm.h
+++ b/source/libs/transport/inc/transComm.h
@@ -238,10 +238,11 @@ SAsyncPool* transCreateAsyncPool(uv_loop_t* loop, int sz, void* arg, AsyncCB cb)
 void        transDestroyAsyncPool(SAsyncPool* pool);
 int         transSendAsync(SAsyncPool* pool, queue* mq);
 
-int transInitBuffer(SConnBuffer* buf);
-int transClearBuffer(SConnBuffer* buf);
-int transDestroyBuffer(SConnBuffer* buf);
-int transAllocBuffer(SConnBuffer* connBuf, uv_buf_t* uvBuf);
+int  transInitBuffer(SConnBuffer* buf);
+int  transClearBuffer(SConnBuffer* buf);
+int  transDestroyBuffer(SConnBuffer* buf);
+int  transAllocBuffer(SConnBuffer* connBuf, uv_buf_t* uvBuf);
+bool transReadComplete(SConnBuffer* connBuf);
 
 // int transPackMsg(SRpcMsg *rpcMsg, bool sercured, bool auth, char **msg, int32_t *msgLen);
 
diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index c70cd933d5..8312c0217c 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -84,8 +84,6 @@ static void      addConnToPool(void* pool, char* ip, uint32_t port, SCliConn* co
 
 // register timer in each thread to clear expire conn
 static void clientTimeoutCb(uv_timer_t* handle);
-// check whether already read complete packet from server
-static bool clientReadComplete(SConnBuffer* pBuf);
 // alloc buf for read
 static void clientAllocBufferCb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf);
 // callback after read nbytes from socket
@@ -309,32 +307,6 @@ static void addConnToPool(void* pool, char* ip, uint32_t port, SCliConn* conn) {
   assert(plist != NULL);
   QUEUE_PUSH(&plist->conn, &conn->conn);
 }
-static bool clientReadComplete(SConnBuffer* data) {
-  if (data->len >= sizeof(STransMsgHead)) {
-    STransMsgHead head;
-    memcpy((char*)&head, data->buf, sizeof(head));
-    int32_t msgLen = (int32_t)htonl(head.msgLen);
-    data->total = msgLen;
-  }
-
-  if (data->len == data->cap && data->total == data->cap) {
-    return true;
-  }
-  return false;
-  // if (data->len >= headLen) {
-  //  memcpy((char*)&head, data->buf, headLen);
-  //  int32_t msgLen = (int32_t)htonl((uint32_t)head.msgLen);
-  //  if (msgLen > data->len) {
-  //    data->left = msgLen - data->len;
-  //    return false;
-  //  } else if (msgLen == data->len) {
-  //    data->left = 0;
-  //    return true;
-  //  }
-  //} else {
-  //  return false;
-  //}
-}
 static void clientAllocBufferCb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf) {
   SCliConn*    conn = handle->data;
   SConnBuffer* pBuf = &conn->readBuf;
@@ -349,7 +321,7 @@ static void clientReadCb(uv_stream_t* handle, ssize_t nread, const uv_buf_t* buf
   SConnBuffer* pBuf = &conn->readBuf;
   if (nread > 0) {
     pBuf->len += nread;
-    if (clientReadComplete(pBuf)) {
+    if (transReadComplete(pBuf)) {
       tTrace("client conn %p read complete", conn);
       clientHandleResp(conn);
     } else {
diff --git a/source/libs/transport/src/transComm.c b/source/libs/transport/src/transComm.c
index 388e0da4e0..9a8607b0ed 100644
--- a/source/libs/transport/src/transComm.c
+++ b/source/libs/transport/src/transComm.c
@@ -222,23 +222,31 @@ int transAllocBuffer(SConnBuffer* connBuf, uv_buf_t* uvBuf) {
     p->buf = (char*)calloc(CAPACITY, sizeof(char));
     p->len = 0;
     p->cap = CAPACITY;
-    p->total = 0;
+    p->total = -1;
 
     uvBuf->base = p->buf;
     uvBuf->len = CAPACITY;
   } else {
-    STransMsgHead head;
-    memcpy((char*)&head, p->buf, sizeof(head));
-    int32_t msgLen = (int32_t)htonl(head.msgLen);
-
-    p->total = msgLen;
-    p->cap = msgLen;
+    p->cap = p->total;
     p->buf = realloc(p->buf, p->cap);
     uvBuf->base = p->buf + p->len;
     uvBuf->len = p->cap - p->len;
   }
   return 0;
 }
+// check whether already read complete
+bool transReadComplete(SConnBuffer* connBuf) {
+  if (connBuf->total == -1 && connBuf->len >= sizeof(STransMsgHead)) {
+    STransMsgHead head;
+    memcpy((char*)&head, connBuf->buf, sizeof(head));
+    int32_t msgLen = (int32_t)htonl(head.msgLen);
+    connBuf->total = msgLen;
+  }
+  if (connBuf->len == connBuf->cap && connBuf->total == connBuf->cap) {
+    return true;
+  }
+  return false;
+}
 int transPackMsg(STransMsgHead* msgHead, bool sercured, bool auth) {}
 
 int transUnpackMsg(STransMsgHead* msgHead) {}
diff --git a/source/libs/transport/src/transSrv.c b/source/libs/transport/src/transSrv.c
index a038f72adc..9fca371bf3 100644
--- a/source/libs/transport/src/transSrv.c
+++ b/source/libs/transport/src/transSrv.c
@@ -104,7 +104,6 @@ static void uvStartSendResp(SSrvMsg* msg);
 
 static void destroySmsg(SSrvMsg* smsg);
 // check whether already read complete packet
-static bool      readComplete(SConnBuffer* buf);
 static SSrvConn* createConn(void* hThrd);
 static void      destroyConn(SSrvConn* conn, bool clear /*clear handle or not*/);
 
@@ -124,45 +123,6 @@ void uvAllocReadBufferCb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* b
   transAllocBuffer(pBuf, buf);
 }
 
-// check data read from socket complete or not
-//
-static bool readComplete(SConnBuffer* data) {
-  // TODO(yihao): handle pipeline later
-  if (data->len == data->cap && data->total == data->cap) {
-    return true;
-  }
-  return false;
-  // STransMsgHead head;
-  // int32_t       headLen = sizeof(head);
-  // if (data->len >= headLen) {
-  //  memcpy((char*)&head, data->buf, headLen);
-  //  int32_t msgLen = (int32_t)htonl((uint32_t)head.msgLen);
-  //  if (msgLen > data->len) {
-  //    data->left = msgLen - data->len;
-  //    return false;
-  //  } else if (msgLen == data->len) {
-  //    return true;
-  //  } else if (msgLen < data->len) {
-  //    return false;
-  //    // handle other packet later
-  //  }
-  //} else {
-  //  return false;
-  //}
-}
-
-// static void uvDoProcess(SRecvInfo* pRecv) {
-//  // impl later
-//  STransMsgHead* pHead = (STransMsgHead*)pRecv->msg;
-//  SRpcInfo*      pRpc = (SRpcInfo*)pRecv->shandle;
-//  SSrvConn*         pConn = pRecv->thandle;
-//  tDump(pRecv->msg, pRecv->msgLen);
-//  terrno = 0;
-//  // SRpcReqContext* pContest;
-//
-//  // do auth and check
-//}
-
 static int uvAuthMsg(SSrvConn* pConn, char* msg, int len) {
   STransMsgHead* pHead = (STransMsgHead*)msg;
 
@@ -283,7 +243,7 @@ void uvOnReadCb(uv_stream_t* cli, ssize_t nread, const uv_buf_t* buf) {
   if (nread > 0) {
     pBuf->len += nread;
     tTrace("server conn %p read summary, total read: %d, current read: %d", conn, pBuf->len, (int)nread);
-    if (readComplete(pBuf)) {
+    if (transReadComplete(pBuf)) {
       tTrace("server conn %p alread read complete packet", conn);
       uvHandleReq(conn);
     } else {

From 9233663a985c4aca1bfd925d006320ebce0da156 Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Tue, 22 Feb 2022 22:02:28 +0800
Subject: [PATCH 12/12] add index test U

---
 source/libs/index/src/index.c                |  56 +++--
 source/libs/index/src/index_cache.c          |  69 ++++--
 source/libs/index/src/index_fst.c            | 198 +++++++++++-----
 source/libs/index/src/index_fst_automation.c |  24 +-
 source/libs/index/src/index_fst_util.c       |  25 +-
 source/libs/index/src/index_tfile.c          | 126 +++++++---
 source/libs/index/test/CMakeLists.txt        |  20 ++
 source/libs/index/test/fstTest.cc            |  11 +-
 source/libs/index/test/fstUT.cc              | 232 +++++++++++++++++++
 9 files changed, 602 insertions(+), 159 deletions(-)
 create mode 100644 source/libs/index/test/fstUT.cc

diff --git a/source/libs/index/src/index.c b/source/libs/index/src/index.c
index 0c222eae1a..9287a91828 100644
--- a/source/libs/index/src/index.c
+++ b/source/libs/index/src/index.c
@@ -66,7 +66,9 @@ static void indexMergeSameKey(SArray* result, TFileValue* tv);
 int indexOpen(SIndexOpts* opts, const char* path, SIndex** index) {
   pthread_once(&isInit, indexInit);
   SIndex* sIdx = calloc(1, sizeof(SIndex));
-  if (sIdx == NULL) { return -1; }
+  if (sIdx == NULL) {
+    return -1;
+  }
 
 #ifdef USE_LUCENE
   index_t* index = index_open(path);
@@ -76,7 +78,9 @@ int indexOpen(SIndexOpts* opts, const char* path, SIndex** index) {
 #ifdef USE_INVERTED_INDEX
   // sIdx->cache = (void*)indexCacheCreate(sIdx);
   sIdx->tindex = indexTFileCreate(path);
-  if (sIdx->tindex == NULL) { goto END; }
+  if (sIdx->tindex == NULL) {
+    goto END;
+  }
 
   sIdx->colObj = taosHashInit(8, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_ENTRY_LOCK);
   sIdx->cVersion = 1;
@@ -87,7 +91,9 @@ int indexOpen(SIndexOpts* opts, const char* path, SIndex** index) {
 #endif
 
 END:
-  if (sIdx != NULL) { indexClose(sIdx); }
+  if (sIdx != NULL) {
+    indexClose(sIdx);
+  }
 
   *index = NULL;
   return -1;
@@ -103,7 +109,9 @@ void indexClose(SIndex* sIdx) {
   void* iter = taosHashIterate(sIdx->colObj, NULL);
   while (iter) {
     IndexCache** pCache = iter;
-    if (*pCache) { indexCacheUnRef(*pCache); }
+    if (*pCache) {
+      indexCacheUnRef(*pCache);
+    }
     iter = taosHashIterate(sIdx->colObj, iter);
   }
   taosHashCleanup(sIdx->colObj);
@@ -161,7 +169,9 @@ int indexPut(SIndex* index, SIndexMultiTerm* fVals, uint64_t uid) {
     IndexCache** cache = taosHashGet(index->colObj, buf, sz);
     assert(*cache != NULL);
     int ret = indexCachePut(*cache, p, uid);
-    if (ret != 0) { return ret; }
+    if (ret != 0) {
+      return ret;
+    }
   }
 
 #endif
@@ -191,7 +201,9 @@ int indexSearch(SIndex* index, SIndexMultiTermQuery* multiQuerys, SArray* result
   int  tsz = 0;
   index_multi_search(index->index, (const char**)fields, (const char**)keys, types, nQuery, opera, &tResult, &tsz);
 
-  for (int i = 0; i < tsz; i++) { taosArrayPush(result, &tResult[i]); }
+  for (int i = 0; i < tsz; i++) {
+    taosArrayPush(result, &tResult[i]);
+  }
 
   for (int i = 0; i < nQuery; i++) {
     free(fields[i]);
@@ -248,7 +260,9 @@ void indexOptsDestroy(SIndexOpts* opts) {
  */
 SIndexMultiTermQuery* indexMultiTermQueryCreate(EIndexOperatorType opera) {
   SIndexMultiTermQuery* p = (SIndexMultiTermQuery*)malloc(sizeof(SIndexMultiTermQuery));
-  if (p == NULL) { return NULL; }
+  if (p == NULL) {
+    return NULL;
+  }
   p->opera = opera;
   p->query = taosArrayInit(4, sizeof(SIndexTermQuery));
   return p;
@@ -270,7 +284,9 @@ int indexMultiTermQueryAdd(SIndexMultiTermQuery* pQuery, SIndexTerm* term, EInde
 SIndexTerm* indexTermCreate(int64_t suid, SIndexOperOnColumn oper, uint8_t colType, const char* colName,
                             int32_t nColName, const char* colVal, int32_t nColVal) {
   SIndexTerm* t = (SIndexTerm*)calloc(1, (sizeof(SIndexTerm)));
-  if (t == NULL) { return NULL; }
+  if (t == NULL) {
+    return NULL;
+  }
 
   t->suid = suid;
   t->operType = oper;
@@ -343,7 +359,9 @@ static int indexTermSearch(SIndex* sIdx, SIndexTermQuery* query, SArray** result
   return 0;
 }
 static void indexInterResultsDestroy(SArray* results) {
-  if (results == NULL) { return; }
+  if (results == NULL) {
+    return;
+  }
 
   size_t sz = taosArrayGetSize(results);
   for (size_t i = 0; i < sz; i++) {
@@ -419,18 +437,24 @@ static void indexDestroyTempResult(SArray* result) {
   taosArrayDestroy(result);
 }
 int indexFlushCacheToTFile(SIndex* sIdx, void* cache) {
-  if (sIdx == NULL) { return -1; }
+  if (sIdx == NULL) {
+    return -1;
+  }
   indexInfo("suid %" PRIu64 " merge cache into tindex", sIdx->suid);
 
   int64_t st = taosGetTimestampUs();
 
   IndexCache*  pCache = (IndexCache*)cache;
   TFileReader* pReader = tfileGetReaderByCol(sIdx->tindex, pCache->suid, pCache->colName);
-  if (pReader == NULL) { indexWarn("empty tfile reader found"); }
+  if (pReader == NULL) {
+    indexWarn("empty tfile reader found");
+  }
   // handle flush
   Iterate* cacheIter = indexCacheIteratorCreate(pCache);
   Iterate* tfileIter = tfileIteratorCreate(pReader);
-  if (tfileIter == NULL) { indexWarn("empty tfile reader iterator"); }
+  if (tfileIter == NULL) {
+    indexWarn("empty tfile reader iterator");
+  }
 
   SArray* result = taosArrayInit(1024, sizeof(void*));
 
@@ -484,7 +508,9 @@ void iterateValueDestroy(IterateValue* value, bool destroy) {
     taosArrayDestroy(value->val);
     value->val = NULL;
   } else {
-    if (value->val != NULL) { taosArrayClear(value->val); }
+    if (value->val != NULL) {
+      taosArrayClear(value->val);
+    }
   }
   free(value->colVal);
   value->colVal = NULL;
@@ -507,7 +533,9 @@ static int indexGenTFile(SIndex* sIdx, IndexCache* cache, SArray* batch) {
   tfileWriterClose(tw);
 
   TFileReader* reader = tfileReaderOpen(sIdx->path, cache->suid, version, cache->colName);
-  if (reader == NULL) { return -1; }
+  if (reader == NULL) {
+    return -1;
+  }
 
   TFileHeader* header = &reader->header;
   ICacheKey    key = {.suid = cache->suid, .colName = header->colName, .nColName = strlen(header->colName)};
diff --git a/source/libs/index/src/index_cache.c b/source/libs/index/src/index_cache.c
index 48566a8674..d6a7141825 100644
--- a/source/libs/index/src/index_cache.c
+++ b/source/libs/index/src/index_cache.c
@@ -119,13 +119,17 @@ void indexCacheDestroySkiplist(SSkipList* slt) {
   tSkipListDestroy(slt);
 }
 void indexCacheDestroyImm(IndexCache* cache) {
-  if (cache == NULL) { return; }
+  if (cache == NULL) {
+    return;
+  }
 
   MemTable* tbl = NULL;
   pthread_mutex_lock(&cache->mtx);
+
   tbl = cache->imm;
   cache->imm = NULL;  // or throw int bg thread
   pthread_cond_broadcast(&cache->finished);
+
   pthread_mutex_unlock(&cache->mtx);
 
   indexMemUnRef(tbl);
@@ -133,7 +137,9 @@ void indexCacheDestroyImm(IndexCache* cache) {
 }
 void indexCacheDestroy(void* cache) {
   IndexCache* pCache = cache;
-  if (pCache == NULL) { return; }
+  if (pCache == NULL) {
+    return;
+  }
   indexMemUnRef(pCache->mem);
   indexMemUnRef(pCache->imm);
   free(pCache->colName);
@@ -146,7 +152,9 @@ void indexCacheDestroy(void* cache) {
 
 Iterate* indexCacheIteratorCreate(IndexCache* cache) {
   Iterate* iiter = calloc(1, sizeof(Iterate));
-  if (iiter == NULL) { return NULL; }
+  if (iiter == NULL) {
+    return NULL;
+  }
 
   pthread_mutex_lock(&cache->mtx);
 
@@ -164,7 +172,9 @@ Iterate* indexCacheIteratorCreate(IndexCache* cache) {
   return iiter;
 }
 void indexCacheIteratorDestroy(Iterate* iter) {
-  if (iter == NULL) { return; }
+  if (iter == NULL) {
+    return;
+  }
   tSkipListDestroyIter(iter->iter);
   iterateValueDestroy(&iter->val, true);
   free(iter);
@@ -186,9 +196,6 @@ static void indexCacheMakeRoomForWrite(IndexCache* cache) {
     } else if (cache->imm != NULL) {
       // TODO: wake up by condition variable
       pthread_cond_wait(&cache->finished, &cache->mtx);
-      // pthread_mutex_unlock(&cache->mtx);
-      // taosMsleep(50);
-      // pthread_mutex_lock(&cache->mtx);
     } else {
       indexCacheRef(cache);
       cache->imm = cache->mem;
@@ -202,13 +209,17 @@ static void indexCacheMakeRoomForWrite(IndexCache* cache) {
 }
 
 int indexCachePut(void* cache, SIndexTerm* term, uint64_t uid) {
-  if (cache == NULL) { return -1; }
+  if (cache == NULL) {
+    return -1;
+  }
 
   IndexCache* pCache = cache;
   indexCacheRef(pCache);
   // encode data
   CacheTerm* ct = calloc(1, sizeof(CacheTerm));
-  if (cache == NULL) { return -1; }
+  if (cache == NULL) {
+    return -1;
+  }
   // set up key
   ct->colType = term->colType;
   ct->colVal = (char*)calloc(1, sizeof(char) * (term->nColVal + 1));
@@ -240,7 +251,9 @@ int indexCacheDel(void* cache, const char* fieldValue, int32_t fvlen, uint64_t u
 }
 
 static int indexQueryMem(MemTable* mem, CacheTerm* ct, EIndexQueryType qtype, SArray* result, STermValueType* s) {
-  if (mem == NULL) { return 0; }
+  if (mem == NULL) {
+    return 0;
+  }
   char* key = indexCacheTermGet(ct);
 
   SSkipListIterator* iter = tSkipListCreateIterFromVal(mem->mem, key, TSDB_DATA_TYPE_BINARY, TSDB_ORDER_ASC);
@@ -266,7 +279,9 @@ static int indexQueryMem(MemTable* mem, CacheTerm* ct, EIndexQueryType qtype, SA
   return 0;
 }
 int indexCacheSearch(void* cache, SIndexTermQuery* query, SArray* result, STermValueType* s) {
-  if (cache == NULL) { return 0; }
+  if (cache == NULL) {
+    return 0;
+  }
   IndexCache* pCache = cache;
 
   MemTable *mem = NULL, *imm = NULL;
@@ -294,23 +309,33 @@ int indexCacheSearch(void* cache, SIndexTermQuery* query, SArray* result, STermV
 }
 
 void indexCacheRef(IndexCache* cache) {
-  if (cache == NULL) { return; }
+  if (cache == NULL) {
+    return;
+  }
   int ref = T_REF_INC(cache);
   UNUSED(ref);
 }
 void indexCacheUnRef(IndexCache* cache) {
-  if (cache == NULL) { return; }
+  if (cache == NULL) {
+    return;
+  }
   int ref = T_REF_DEC(cache);
-  if (ref == 0) { indexCacheDestroy(cache); }
+  if (ref == 0) {
+    indexCacheDestroy(cache);
+  }
 }
 
 void indexMemRef(MemTable* tbl) {
-  if (tbl == NULL) { return; }
+  if (tbl == NULL) {
+    return;
+  }
   int ref = T_REF_INC(tbl);
   UNUSED(ref);
 }
 void indexMemUnRef(MemTable* tbl) {
-  if (tbl == NULL) { return; }
+  if (tbl == NULL) {
+    return;
+  }
   int ref = T_REF_DEC(tbl);
   if (ref == 0) {
     SSkipList* slt = tbl->mem;
@@ -320,7 +345,9 @@ void indexMemUnRef(MemTable* tbl) {
 }
 
 static void indexCacheTermDestroy(CacheTerm* ct) {
-  if (ct == NULL) { return; }
+  if (ct == NULL) {
+    return;
+  }
   free(ct->colVal);
   free(ct);
 }
@@ -333,7 +360,9 @@ static int32_t indexCacheTermCompare(const void* l, const void* r) {
   CacheTerm* rt = (CacheTerm*)r;
   // compare colVal
   int32_t cmp = strcmp(lt->colVal, rt->colVal);
-  if (cmp == 0) { return rt->version - lt->version; }
+  if (cmp == 0) {
+    return rt->version - lt->version;
+  }
   return cmp;
 }
 
@@ -354,7 +383,9 @@ static void doMergeWork(SSchedMsg* msg) {
 }
 static bool indexCacheIteratorNext(Iterate* itera) {
   SSkipListIterator* iter = itera->iter;
-  if (iter == NULL) { return false; }
+  if (iter == NULL) {
+    return false;
+  }
   IterateValue* iv = &itera->val;
   iterateValueDestroy(iv, false);
 
diff --git a/source/libs/index/src/index_fst.c b/source/libs/index/src/index_fst.c
index 46b4c9d7c6..3664bcfad0 100644
--- a/source/libs/index/src/index_fst.c
+++ b/source/libs/index/src/index_fst.c
@@ -31,20 +31,24 @@ static uint8_t fstPackDetla(FstCountingWriter* wrt, CompiledAddr nodeAddr, Compi
 
 FstUnFinishedNodes* fstUnFinishedNodesCreate() {
   FstUnFinishedNodes* nodes = malloc(sizeof(FstUnFinishedNodes));
-  if (nodes == NULL) { return NULL; }
+  if (nodes == NULL) {
+    return NULL;
+  }
 
   nodes->stack = (SArray*)taosArrayInit(64, sizeof(FstBuilderNodeUnfinished));
   fstUnFinishedNodesPushEmpty(nodes, false);
   return nodes;
 }
-void unFinishedNodeDestroyElem(void* elem) {
+static void unFinishedNodeDestroyElem(void* elem) {
   FstBuilderNodeUnfinished* b = (FstBuilderNodeUnfinished*)elem;
   fstBuilderNodeDestroy(b->node);
   free(b->last);
   b->last = NULL;
 }
 void fstUnFinishedNodesDestroy(FstUnFinishedNodes* nodes) {
-  if (nodes == NULL) { return; }
+  if (nodes == NULL) {
+    return;
+  }
 
   taosArrayDestroyEx(nodes->stack, unFinishedNodeDestroyElem);
   free(nodes);
@@ -92,7 +96,9 @@ void fstUnFinishedNodesTopLastFreeze(FstUnFinishedNodes* nodes, CompiledAddr add
 }
 void fstUnFinishedNodesAddSuffix(FstUnFinishedNodes* nodes, FstSlice bs, Output out) {
   FstSlice* s = &bs;
-  if (fstSliceIsEmpty(s)) { return; }
+  if (fstSliceIsEmpty(s)) {
+    return;
+  }
   size_t                    sz = taosArrayGetSize(nodes->stack) - 1;
   FstBuilderNodeUnfinished* un = taosArrayGet(nodes->stack, sz);
   assert(un->last == NULL);
@@ -172,7 +178,9 @@ uint64_t fstUnFinishedNodesFindCommPrefixAndSetOutput(FstUnFinishedNodes* node,
 
 FstState fstStateCreateFrom(FstSlice* slice, CompiledAddr addr) {
   FstState fs = {.state = EmptyFinal, .val = 0};
-  if (addr == EMPTY_ADDRESS) { return fs; }
+  if (addr == EMPTY_ADDRESS) {
+    return fs;
+  }
 
   uint8_t* data = fstSliceData(slice, NULL);
   uint8_t  v = data[addr];
@@ -229,7 +237,9 @@ void fstStateCompileForOneTrans(FstCountingWriter* w, CompiledAddr addr, FstTran
   fstStateSetCommInput(&st, trn->inp);
   bool    null = false;
   uint8_t inp = fstStateCommInput(&st, &null);
-  if (null == true) { fstCountingWriterWrite(w, (char*)&trn->inp, sizeof(trn->inp)); }
+  if (null == true) {
+    fstCountingWriterWrite(w, (char*)&trn->inp, sizeof(trn->inp));
+  }
   fstCountingWriterWrite(w, (char*)(&(st.val)), sizeof(st.val));
   return;
 }
@@ -263,7 +273,9 @@ void fstStateCompileForAnyTrans(FstCountingWriter* w, CompiledAddr addr, FstBuil
   fstStateSetStateNtrans(&st, (uint8_t)sz);
 
   if (anyOuts) {
-    if (FST_BUILDER_NODE_IS_FINAL(node)) { fstCountingWriterPackUintIn(w, node->finalOutput, oSize); }
+    if (FST_BUILDER_NODE_IS_FINAL(node)) {
+      fstCountingWriterPackUintIn(w, node->finalOutput, oSize);
+    }
     for (int32_t i = sz - 1; i >= 0; i--) {
       FstTransition* t = taosArrayGet(node->trans, i);
       fstCountingWriterPackUintIn(w, t->out, oSize);
@@ -428,7 +440,9 @@ Output fstStateOutput(FstState* s, FstNode* node) {
   assert(s->state == OneTrans);
 
   uint8_t oSizes = FST_GET_OUTPUT_PACK_SIZE(node->sizes);
-  if (oSizes == 0) { return 0; }
+  if (oSizes == 0) {
+    return 0;
+  }
   FstSlice* slice = &node->data;
   uint8_t   tSizes = FST_GET_TRANSITION_PACK_SIZE(node->sizes);
 
@@ -440,7 +454,9 @@ Output fstStateOutputForAnyTrans(FstState* s, FstNode* node, uint64_t i) {
   assert(s->state == AnyTrans);
 
   uint8_t oSizes = FST_GET_OUTPUT_PACK_SIZE(node->sizes);
-  if (oSizes == 0) { return 0; }
+  if (oSizes == 0) {
+    return 0;
+  }
   FstSlice* slice = &node->data;
   uint8_t*  data = fstSliceData(slice, NULL);
   uint64_t  at = node->start - fstStateNtransLen(s) - 1  // pack size
@@ -453,7 +469,9 @@ Output fstStateOutputForAnyTrans(FstState* s, FstNode* node, uint64_t i) {
 
 void fstStateSetFinalState(FstState* s, bool yes) {
   assert(s->state == AnyTrans);
-  if (yes) { s->val |= 0b01000000; }
+  if (yes) {
+    s->val |= 0b01000000;
+  }
   return;
 }
 bool fstStateIsFinalState(FstState* s) {
@@ -463,7 +481,9 @@ bool fstStateIsFinalState(FstState* s) {
 
 void fstStateSetStateNtrans(FstState* s, uint8_t n) {
   assert(s->state == AnyTrans);
-  if (n <= 0b00111111) { s->val = (s->val & 0b11000000) | n; }
+  if (n <= 0b00111111) {
+    s->val = (s->val & 0b11000000) | n;
+  }
   return;
 }
 // state_ntrans
@@ -495,7 +515,9 @@ uint64_t fstStateNtransLen(FstState* s) {
 uint64_t fstStateNtrans(FstState* s, FstSlice* slice) {
   bool    null = false;
   uint8_t n = fstStateStateNtrans(s, &null);
-  if (null != true) { return n; }
+  if (null != true) {
+    return n;
+  }
   int32_t  len;
   uint8_t* data = fstSliceData(slice, &len);
   n = data[len - 2];
@@ -505,7 +527,9 @@ uint64_t fstStateNtrans(FstState* s, FstSlice* slice) {
 }
 Output fstStateFinalOutput(FstState* s, uint64_t version, FstSlice* slice, PackSizes sizes, uint64_t nTrans) {
   uint8_t oSizes = FST_GET_OUTPUT_PACK_SIZE(sizes);
-  if (oSizes == 0 || !fstStateIsFinalState(s)) { return 0; }
+  if (oSizes == 0 || !fstStateIsFinalState(s)) {
+    return 0;
+  }
 
   uint64_t at = FST_SLICE_LEN(slice) - 1 - fstStateNtransLen(s) - 1  // pack size
                 - fstStateTotalTransSize(s, version, sizes, nTrans) - (nTrans * oSizes) - oSizes;
@@ -522,7 +546,9 @@ uint64_t fstStateFindInput(FstState* s, FstNode* node, uint8_t b, bool* null) {
     uint8_t* data = fstSliceData(slice, &dlen);
     uint64_t i = data[at + b];
     // uint64_t i = slice->data[slice->start + at + b];
-    if (i >= node->nTrans) { *null = true; }
+    if (i >= node->nTrans) {
+      *null = true;
+    }
     return i;
   } else {
     uint64_t start = node->start - fstStateNtransLen(s) - 1  // pack size
@@ -539,7 +565,9 @@ uint64_t fstStateFindInput(FstState* s, FstNode* node, uint8_t b, bool* null) {
         return node->nTrans - i - 1;  // bug
       }
     }
-    if (i == len) { *null = true; }
+    if (i == len) {
+      *null = true;
+    }
     fstSliceDestroy(&t);
   }
 }
@@ -548,7 +576,9 @@ uint64_t fstStateFindInput(FstState* s, FstNode* node, uint8_t b, bool* null) {
 
 FstNode* fstNodeCreate(int64_t version, CompiledAddr addr, FstSlice* slice) {
   FstNode* n = (FstNode*)malloc(sizeof(FstNode));
-  if (n == NULL) { return NULL; }
+  if (n == NULL) {
+    return NULL;
+  }
 
   FstState st = fstStateCreateFrom(slice, addr);
 
@@ -614,7 +644,9 @@ void fstNodeDestroy(FstNode* node) {
 }
 FstTransitions* fstNodeTransitions(FstNode* node) {
   FstTransitions* t = malloc(sizeof(FstTransitions));
-  if (NULL == t) { return NULL; }
+  if (NULL == t) {
+    return NULL;
+  }
   FstRange range = {.start = 0, .end = FST_NODE_LEN(node)};
   t->range = range;
   t->node = node;
@@ -721,7 +753,9 @@ bool fstBuilderNodeCompileTo(FstBuilderNode* b, FstCountingWriter* wrt, Compiled
 
 FstBuilder* fstBuilderCreate(void* w, FstType ty) {
   FstBuilder* b = malloc(sizeof(FstBuilder));
-  if (NULL == b) { return b; }
+  if (NULL == b) {
+    return b;
+  }
 
   b->wrt = fstCountingWriterCreate(w);
   b->unfinished = fstUnFinishedNodesCreate();
@@ -735,15 +769,17 @@ FstBuilder* fstBuilderCreate(void* w, FstType ty) {
   taosEncodeFixedU64(&pBuf64, VERSION);
   fstCountingWriterWrite(b->wrt, buf64, sizeof(buf64));
 
-  memset(buf64, 0, sizeof(buf64));
   pBuf64 = buf64;
+  memset(buf64, 0, sizeof(buf64));
   taosEncodeFixedU64(&pBuf64, ty);
   fstCountingWriterWrite(b->wrt, buf64, sizeof(buf64));
 
   return b;
 }
 void fstBuilderDestroy(FstBuilder* b) {
-  if (b == NULL) { return; }
+  if (b == NULL) {
+    return;
+  }
 
   fstCountingWriterDestroy(b->wrt);
   fstUnFinishedNodesDestroy(b->unfinished);
@@ -830,6 +866,7 @@ void fstBuilderCompileFrom(FstBuilder* b, uint64_t istate) {
   fstUnFinishedNodesTopLastFreeze(b->unfinished, addr);
   return;
 }
+
 CompiledAddr fstBuilderCompile(FstBuilder* b, FstBuilderNode* bn) {
   if (FST_BUILDER_NODE_IS_FINAL(bn) && FST_BUILDER_NODE_TRANS_ISEMPTY(bn) && FST_BUILDER_NODE_FINALOUTPUT_ISZERO(bn)) {
     return EMPTY_ADDRESS;
@@ -844,7 +881,9 @@ CompiledAddr fstBuilderCompile(FstBuilder* b, FstBuilderNode* bn) {
 
   fstBuilderNodeCompileTo(bn, b->wrt, b->lastAddr, startAddr);
   b->lastAddr = (CompiledAddr)(FST_WRITER_COUNT(b->wrt) - 1);
-  if (entry->state == NOTFOUND) { FST_REGISTRY_CELL_INSERT(entry->cell, b->lastAddr); }
+  if (entry->state == NOTFOUND) {
+    FST_REGISTRY_CELL_INSERT(entry->cell, b->lastAddr);
+  }
   fstRegistryEntryDestroy(entry);
 
   return b->lastAddr;
@@ -887,7 +926,9 @@ FstSlice fstNodeAsSlice(FstNode* node) {
 
 FstLastTransition* fstLastTransitionCreate(uint8_t inp, Output out) {
   FstLastTransition* trn = malloc(sizeof(FstLastTransition));
-  if (trn == NULL) { return NULL; }
+  if (trn == NULL) {
+    return NULL;
+  }
 
   trn->inp = inp;
   trn->out = out;
@@ -897,7 +938,9 @@ FstLastTransition* fstLastTransitionCreate(uint8_t inp, Output out) {
 void fstLastTransitionDestroy(FstLastTransition* trn) { free(trn); }
 void fstBuilderNodeUnfinishedLastCompiled(FstBuilderNodeUnfinished* unNode, CompiledAddr addr) {
   FstLastTransition* trn = unNode->last;
-  if (trn == NULL) { return; }
+  if (trn == NULL) {
+    return;
+  }
   FstTransition t = {.inp = trn->inp, .out = trn->out, .addr = addr};
   taosArrayPush(unNode->node->trans, &t);
   fstLastTransitionDestroy(trn);
@@ -906,27 +949,35 @@ void fstBuilderNodeUnfinishedLastCompiled(FstBuilderNodeUnfinished* unNode, Comp
 }
 
 void fstBuilderNodeUnfinishedAddOutputPrefix(FstBuilderNodeUnfinished* unNode, Output out) {
-  if (FST_BUILDER_NODE_IS_FINAL(unNode->node)) { unNode->node->finalOutput += out; }
+  if (FST_BUILDER_NODE_IS_FINAL(unNode->node)) {
+    unNode->node->finalOutput += out;
+  }
   size_t sz = taosArrayGetSize(unNode->node->trans);
   for (size_t i = 0; i < sz; i++) {
     FstTransition* trn = taosArrayGet(unNode->node->trans, i);
     trn->out += out;
   }
-  if (unNode->last) { unNode->last->out += out; }
+  if (unNode->last) {
+    unNode->last->out += out;
+  }
   return;
 }
 
 Fst* fstCreate(FstSlice* slice) {
   int32_t slen;
   char*   buf = fstSliceData(slice, &slen);
-  if (slen < 36) { return NULL; }
+  if (slen < 36) {
+    return NULL;
+  }
   uint64_t len = slen;
   uint64_t skip = 0;
 
   uint64_t version;
   taosDecodeFixedU64(buf, &version);
   skip += sizeof(version);
-  if (version == 0 || version > VERSION) { return NULL; }
+  if (version == 0 || version > VERSION) {
+    return NULL;
+  }
 
   uint64_t type;
   taosDecodeFixedU64(buf + skip, &type);
@@ -949,10 +1000,14 @@ Fst* fstCreate(FstSlice* slice) {
   taosDecodeFixedU64(buf + len, &fstLen);
   // TODO(validate root addr)
   Fst* fst = (Fst*)calloc(1, sizeof(Fst));
-  if (fst == NULL) { return NULL; }
+  if (fst == NULL) {
+    return NULL;
+  }
 
   fst->meta = (FstMeta*)malloc(sizeof(FstMeta));
-  if (NULL == fst->meta) { goto FST_CREAT_FAILED; }
+  if (NULL == fst->meta) {
+    goto FST_CREAT_FAILED;
+  }
 
   fst->meta->version = version;
   fst->meta->rootAddr = rootAddr;
@@ -983,7 +1038,7 @@ void fstDestroy(Fst* fst) {
 
 bool fstGet(Fst* fst, FstSlice* b, Output* out) {
   // dec lock range
-  pthread_mutex_lock(&fst->mtx);
+  // pthread_mutex_lock(&fst->mtx);
   FstNode* root = fstGetRoot(fst);
   Output   tOut = 0;
   int32_t  len;
@@ -996,7 +1051,7 @@ bool fstGet(Fst* fst, FstSlice* b, Output* out) {
     uint8_t inp = data[i];
     Output  res = 0;
     if (false == fstNodeFindInput(root, inp, &res)) {
-      pthread_mutex_unlock(&fst->mtx);
+      // pthread_mutex_unlock(&fst->mtx);
       return false;
     }
 
@@ -1007,7 +1062,7 @@ bool fstGet(Fst* fst, FstSlice* b, Output* out) {
     taosArrayPush(nodes, &root);
   }
   if (!FST_NODE_IS_FINAL(root)) {
-    pthread_mutex_unlock(&fst->mtx);
+    // pthread_mutex_unlock(&fst->mtx);
     return false;
   } else {
     tOut = tOut + FST_NODE_FINAL_OUTPUT(root);
@@ -1018,8 +1073,8 @@ bool fstGet(Fst* fst, FstSlice* b, Output* out) {
     fstNodeDestroy(*node);
   }
   taosArrayDestroy(nodes);
-  fst->root = NULL;
-  pthread_mutex_unlock(&fst->mtx);
+  // fst->root = NULL;
+  // pthread_mutex_unlock(&fst->mtx);
   *out = tOut;
   return true;
 }
@@ -1028,7 +1083,9 @@ FstStreamBuilder* fstSearch(Fst* fst, AutomationCtx* ctx) {
   return fstStreamBuilderCreate(fst, ctx);
 }
 StreamWithState* streamBuilderIntoStream(FstStreamBuilder* sb) {
-  if (sb == NULL) { return NULL; }
+  if (sb == NULL) {
+    return NULL;
+  }
   return streamWithStateCreate(sb->fst, sb->aut, sb->min, sb->max);
 }
 FstStreamWithStateBuilder* fstSearchWithState(Fst* fst, AutomationCtx* ctx) {
@@ -1039,15 +1096,6 @@ FstStreamWithStateBuilder* fstSearchWithState(Fst* fst, AutomationCtx* ctx) {
 FstNode* fstGetRoot(Fst* fst) {
   CompiledAddr rAddr = fstGetRootAddr(fst);
   return fstGetNode(fst, rAddr);
-  // pthread_mutex_lock(&fst->mtx);
-  // if (fst->root != NULL) {
-  //  // pthread_mutex_unlock(&fst->mtx);
-  //  return fst->root;
-  //}
-  // CompiledAddr rAddr = fstGetRootAddr(fst);
-  // fst->root = fstGetNode(fst, rAddr);
-  //// pthread_mutex_unlock(&fst->mtx);
-  // return fst->root;
 }
 
 FstNode* fstGetNode(Fst* fst, CompiledAddr addr) {
@@ -1074,14 +1122,18 @@ bool fstVerify(Fst* fst) {
   uint32_t len, checkSum = fst->meta->checkSum;
   uint8_t* data = fstSliceData(fst->data, &len);
   TSCKSUM  initSum = 0;
-  if (!taosCheckChecksumWhole(data, len)) { return false; }
+  if (!taosCheckChecksumWhole(data, len)) {
+    return false;
+  }
   return true;
 }
 
 // data bound function
 FstBoundWithData* fstBoundStateCreate(FstBound type, FstSlice* data) {
   FstBoundWithData* b = calloc(1, sizeof(FstBoundWithData));
-  if (b == NULL) { return NULL; }
+  if (b == NULL) {
+    return NULL;
+  }
 
   if (data != NULL) {
     b->data = fstSliceCopy(data, data->start, data->end);
@@ -1118,7 +1170,9 @@ void fstBoundDestroy(FstBoundWithData* bound) { free(bound); }
 StreamWithState* streamWithStateCreate(Fst* fst, AutomationCtx* automation, FstBoundWithData* min,
                                        FstBoundWithData* max) {
   StreamWithState* sws = calloc(1, sizeof(StreamWithState));
-  if (sws == NULL) { return NULL; }
+  if (sws == NULL) {
+    return NULL;
+  }
 
   sws->fst = fst;
   sws->aut = automation;
@@ -1134,7 +1188,9 @@ StreamWithState* streamWithStateCreate(Fst* fst, AutomationCtx* automation, FstB
   return sws;
 }
 void streamWithStateDestroy(StreamWithState* sws) {
-  if (sws == NULL) { return; }
+  if (sws == NULL) {
+    return;
+  }
 
   taosArrayDestroy(sws->inp);
   taosArrayDestroyEx(sws->stack, streamStateDestroy);
@@ -1200,7 +1256,9 @@ bool streamWithStateSeekMin(StreamWithState* sws, FstBoundWithData* min) {
       uint64_t        i = 0;
       for (i = trans->range.start; i < trans->range.end; i++) {
         FstTransition trn;
-        if (fstNodeGetTransitionAt(node, i, &trn) && trn.inp > b) { break; }
+        if (fstNodeGetTransitionAt(node, i, &trn) && trn.inp > b) {
+          break;
+        }
       }
 
       StreamState s = {.node = node, .trans = i, .out = {.null = false, .out = out}, .autState = autState};
@@ -1248,7 +1306,9 @@ StreamWithStateResult* streamWithStateNextWith(StreamWithState* sws, StreamCallb
   while (taosArrayGetSize(sws->stack) > 0) {
     StreamState* p = (StreamState*)taosArrayPop(sws->stack);
     if (p->trans >= FST_NODE_LEN(p->node) || !automFuncs[aut->type].canMatch(aut, p->autState)) {
-      if (FST_NODE_ADDR(p->node) != fstGetRootAddr(sws->fst)) { taosArrayPop(sws->inp); }
+      if (FST_NODE_ADDR(p->node) != fstGetRootAddr(sws->fst)) {
+        taosArrayPop(sws->inp);
+      }
       streamStateDestroy(p);
       continue;
     }
@@ -1267,7 +1327,9 @@ StreamWithStateResult* streamWithStateNextWith(StreamWithState* sws, StreamCallb
     if (FST_NODE_IS_FINAL(nextNode)) {
       // void *eofState = sws->aut->acceptEof(nextState);
       void* eofState = automFuncs[aut->type].acceptEof(aut, nextState);
-      if (eofState != NULL) { isMatch = automFuncs[aut->type].isMatch(aut, eofState); }
+      if (eofState != NULL) {
+        isMatch = automFuncs[aut->type].isMatch(aut, eofState);
+      }
     }
     StreamState s1 = {.node = p->node, .trans = p->trans + 1, .out = p->out, .autState = p->autState};
     taosArrayPush(sws->stack, &s1);
@@ -1277,24 +1339,26 @@ StreamWithStateResult* streamWithStateNextWith(StreamWithState* sws, StreamCallb
 
     size_t   isz = taosArrayGetSize(sws->inp);
     uint8_t* buf = (uint8_t*)malloc(isz * sizeof(uint8_t));
-    for (uint32_t i = 0; i < isz; i++) { buf[i] = *(uint8_t*)taosArrayGet(sws->inp, i); }
+    for (uint32_t i = 0; i < isz; i++) {
+      buf[i] = *(uint8_t*)taosArrayGet(sws->inp, i);
+    }
     FstSlice slice = fstSliceCreate(buf, taosArrayGetSize(sws->inp));
     if (fstBoundWithDataExceededBy(sws->endAt, &slice)) {
       taosArrayDestroyEx(sws->stack, streamStateDestroy);
       sws->stack = (SArray*)taosArrayInit(256, sizeof(StreamState));
-      free(buf);
+      tfree(buf);
       fstSliceDestroy(&slice);
       return NULL;
     }
     if (FST_NODE_IS_FINAL(nextNode) && isMatch) {
       FstOutput              fOutput = {.null = false, .out = out + FST_NODE_FINAL_OUTPUT(nextNode)};
       StreamWithStateResult* result = swsResultCreate(&slice, fOutput, tState);
-      free(buf);
+      tfree(buf);
       fstSliceDestroy(&slice);
       taosArrayDestroy(nodes);
       return result;
     }
-    free(buf);
+    tfree(buf);
     fstSliceDestroy(&slice);
   }
   for (size_t i = 0; i < taosArrayGetSize(nodes); i++) {
@@ -1307,16 +1371,19 @@ StreamWithStateResult* streamWithStateNextWith(StreamWithState* sws, StreamCallb
 
 StreamWithStateResult* swsResultCreate(FstSlice* data, FstOutput fOut, void* state) {
   StreamWithStateResult* result = calloc(1, sizeof(StreamWithStateResult));
-  if (result == NULL) { return NULL; }
+  if (result == NULL) {
+    return NULL;
+  }
 
   result->data = fstSliceCopy(data, 0, FST_SLICE_LEN(data) - 1);
   result->out = fOut;
   result->state = state;
-
   return result;
 }
 void swsResultDestroy(StreamWithStateResult* result) {
-  if (NULL == result) { return; }
+  if (NULL == result) {
+    return;
+  }
 
   fstSliceDestroy(&result->data);
   startWithStateValueDestroy(result->state);
@@ -1324,16 +1391,18 @@ void swsResultDestroy(StreamWithStateResult* result) {
 }
 
 void streamStateDestroy(void* s) {
-  if (NULL == s) { return; }
+  if (NULL == s) {
+    return;
+  }
   StreamState* ss = (StreamState*)s;
-
   fstNodeDestroy(ss->node);
-  // free(s->autoState);
 }
 
 FstStreamBuilder* fstStreamBuilderCreate(Fst* fst, AutomationCtx* aut) {
   FstStreamBuilder* b = calloc(1, sizeof(FstStreamBuilder));
-  if (NULL == b) { return NULL; }
+  if (NULL == b) {
+    return NULL;
+  }
 
   b->fst = fst;
   b->aut = aut;
@@ -1349,8 +1418,9 @@ void fstStreamBuilderDestroy(FstStreamBuilder* b) {
   free(b);
 }
 FstStreamBuilder* fstStreamBuilderRange(FstStreamBuilder* b, FstSlice* val, RangeType type) {
-  if (b == NULL) { return NULL; }
-
+  if (b == NULL) {
+    return NULL;
+  }
   if (type == GE) {
     b->min->type = Included;
     fstSliceDestroy(&(b->min->data));
diff --git a/source/libs/index/src/index_fst_automation.c b/source/libs/index/src/index_fst_automation.c
index c6e3cee3e3..590ff294bf 100644
--- a/source/libs/index/src/index_fst_automation.c
+++ b/source/libs/index/src/index_fst_automation.c
@@ -17,7 +17,9 @@
 
 StartWithStateValue* startWithStateValueCreate(StartWithStateKind kind, ValueType ty, void* val) {
   StartWithStateValue* nsv = calloc(1, sizeof(StartWithStateValue));
-  if (nsv == NULL) { return NULL; }
+  if (nsv == NULL) {
+    return NULL;
+  }
 
   nsv->kind = kind;
   nsv->type = ty;
@@ -35,7 +37,9 @@ StartWithStateValue* startWithStateValueCreate(StartWithStateKind kind, ValueTyp
 }
 void startWithStateValueDestroy(void* val) {
   StartWithStateValue* sv = (StartWithStateValue*)val;
-  if (sv == NULL) { return; }
+  if (sv == NULL) {
+    return;
+  }
 
   if (sv->type == FST_INT) {
     //
@@ -48,7 +52,9 @@ void startWithStateValueDestroy(void* val) {
 }
 StartWithStateValue* startWithStateValueDump(StartWithStateValue* sv) {
   StartWithStateValue* nsv = calloc(1, sizeof(StartWithStateValue));
-  if (nsv == NULL) { return NULL; }
+  if (nsv == NULL) {
+    return NULL;
+  }
 
   nsv->kind = sv->kind;
   nsv->type = sv->type;
@@ -88,10 +94,14 @@ static bool prefixCanMatch(AutomationCtx* ctx, void* sv) {
 static bool  prefixWillAlwaysMatch(AutomationCtx* ctx, void* state) { return true; }
 static void* prefixAccept(AutomationCtx* ctx, void* state, uint8_t byte) {
   StartWithStateValue* ssv = (StartWithStateValue*)state;
-  if (ssv == NULL || ctx == NULL) { return NULL; }
+  if (ssv == NULL || ctx == NULL) {
+    return NULL;
+  }
 
   char* data = ctx->data;
-  if (ssv->kind == Done) { return startWithStateValueCreate(Done, FST_INT, &ssv->val); }
+  if (ssv->kind == Done) {
+    return startWithStateValueCreate(Done, FST_INT, &ssv->val);
+  }
   if ((strlen(data) > ssv->val) && data[ssv->val] == byte) {
     int val = ssv->val + 1;
 
@@ -128,7 +138,9 @@ AutomationFunc automFuncs[] = {
 
 AutomationCtx* automCtxCreate(void* data, AutomationType atype) {
   AutomationCtx* ctx = calloc(1, sizeof(AutomationCtx));
-  if (ctx == NULL) { return NULL; }
+  if (ctx == NULL) {
+    return NULL;
+  }
 
   StartWithStateValue* sv = NULL;
   if (atype == AUTOMATION_ALWAYS) {
diff --git a/source/libs/index/src/index_fst_util.c b/source/libs/index/src/index_fst_util.c
index da1e177a18..f08a48c34e 100644
--- a/source/libs/index/src/index_fst_util.c
+++ b/source/libs/index/src/index_fst_util.c
@@ -29,18 +29,6 @@ const uint64_t VERSION = 3;
 
 const uint64_t TRANS_INDEX_THRESHOLD = 32;
 
-// uint8_t commonInput(uint8_t idx) {
-//  if (idx == 0) { return -1; }
-//  else {
-//    return COMMON_INPUTS_INV[idx - 1];
-//  }
-//}
-//
-// uint8_t commonIdx(uint8_t v, uint8_t max) {
-//  uint8_t v = ((uint16_t)tCOMMON_INPUTS[v] + 1)%256;
-//  return v > max ? 0: v;
-//}
-
 uint8_t packSize(uint64_t n) {
   if (n < (1u << 8)) {
     return 1;
@@ -103,9 +91,6 @@ FstSlice fstSliceCreate(uint8_t* data, uint64_t len) {
 FstSlice fstSliceCopy(FstSlice* s, int32_t start, int32_t end) {
   FstString* str = s->str;
   str->ref++;
-  // uint8_t *buf = fstSliceData(s, &alen);
-  // start = buf + start - (buf - s->start);
-  // end   = buf + end - (buf - s->start);
 
   FstSlice t = {.str = str, .start = start + s->start, .end = end + s->start};
   return t;
@@ -130,19 +115,19 @@ FstSlice fstSliceDeepCopy(FstSlice* s, int32_t start, int32_t end) {
   ans.end = tlen - 1;
   return ans;
 }
-bool fstSliceIsEmpty(FstSlice* s) {
-  return s->str == NULL || s->str->len == 0 || s->start < 0 || s->end < 0;
-}
+bool fstSliceIsEmpty(FstSlice* s) { return s->str == NULL || s->str->len == 0 || s->start < 0 || s->end < 0; }
 
 uint8_t* fstSliceData(FstSlice* s, int32_t* size) {
   FstString* str = s->str;
-  if (size != NULL) { *size = s->end - s->start + 1; }
+  if (size != NULL) {
+    *size = s->end - s->start + 1;
+  }
   return str->data + s->start;
 }
 void fstSliceDestroy(FstSlice* s) {
   FstString* str = s->str;
   str->ref--;
-  if (str->ref <= 0) {
+  if (str->ref == 0) {
     free(str->data);
     free(str);
     s->str = NULL;
diff --git a/source/libs/index/src/index_tfile.c b/source/libs/index/src/index_tfile.c
index 98fede4f7b..87cc48146b 100644
--- a/source/libs/index/src/index_tfile.c
+++ b/source/libs/index/src/index_tfile.c
@@ -13,8 +13,6 @@ p *
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-//#include <sys/types.h>
-//#include <dirent.h>
 #include "index_tfile.h"
 #include "index.h"
 #include "index_fst.h"
@@ -61,7 +59,9 @@ static void    tfileGenFileFullName(char* fullname, const char* path, uint64_t s
 
 TFileCache* tfileCacheCreate(const char* path) {
   TFileCache* tcache = calloc(1, sizeof(TFileCache));
-  if (tcache == NULL) { return NULL; }
+  if (tcache == NULL) {
+    return NULL;
+  }
 
   tcache->tableCache = taosHashInit(8, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_ENTRY_LOCK);
   tcache->capacity = 64;
@@ -98,7 +98,9 @@ End:
   return NULL;
 }
 void tfileCacheDestroy(TFileCache* tcache) {
-  if (tcache == NULL) { return; }
+  if (tcache == NULL) {
+    return;
+  }
 
   // free table cache
   TFileReader** reader = taosHashIterate(tcache->tableCache, NULL);
@@ -119,7 +121,9 @@ TFileReader* tfileCacheGet(TFileCache* tcache, ICacheKey* key) {
   int32_t sz = indexSerialCacheKey(key, buf);
   assert(sz < sizeof(buf));
   TFileReader** reader = taosHashGet(tcache->tableCache, buf, sz);
-  if (reader == NULL) { return NULL; }
+  if (reader == NULL) {
+    return NULL;
+  }
   tfileReaderRef(*reader);
 
   return *reader;
@@ -142,7 +146,9 @@ void tfileCachePut(TFileCache* tcache, ICacheKey* key, TFileReader* reader) {
 }
 TFileReader* tfileReaderCreate(WriterCtx* ctx) {
   TFileReader* reader = calloc(1, sizeof(TFileReader));
-  if (reader == NULL) { return NULL; }
+  if (reader == NULL) {
+    return NULL;
+  }
 
   reader->ctx = ctx;
 
@@ -169,7 +175,9 @@ TFileReader* tfileReaderCreate(WriterCtx* ctx) {
   return reader;
 }
 void tfileReaderDestroy(TFileReader* reader) {
-  if (reader == NULL) { return; }
+  if (reader == NULL) {
+    return;
+  }
   // T_REF_INC(reader);
   fstDestroy(reader->fst);
   writerCtxDestroy(reader->ctx, reader->remove);
@@ -209,7 +217,9 @@ TFileWriter* tfileWriterOpen(char* path, uint64_t suid, int32_t version, const c
   tfileGenFileFullName(fullname, path, suid, colName, version);
   // indexInfo("open write file name %s", fullname);
   WriterCtx* wcx = writerCtxCreate(TFile, fullname, false, 1024 * 1024 * 64);
-  if (wcx == NULL) { return NULL; }
+  if (wcx == NULL) {
+    return NULL;
+  }
 
   TFileHeader tfh = {0};
   tfh.suid = suid;
@@ -225,7 +235,9 @@ TFileReader* tfileReaderOpen(char* path, uint64_t suid, int32_t version, const c
 
   WriterCtx* wc = writerCtxCreate(TFile, fullname, true, 1024 * 1024 * 1024);
   indexInfo("open read file name:%s, size: %d", wc->file.buf, wc->file.size);
-  if (wc == NULL) { return NULL; }
+  if (wc == NULL) {
+    return NULL;
+  }
 
   TFileReader* reader = tfileReaderCreate(wc);
   return reader;
@@ -316,19 +328,25 @@ int tfileWriterPut(TFileWriter* tw, void* data, bool order) {
   return 0;
 }
 void tfileWriterClose(TFileWriter* tw) {
-  if (tw == NULL) { return; }
+  if (tw == NULL) {
+    return;
+  }
   writerCtxDestroy(tw->ctx, false);
   free(tw);
 }
 void tfileWriterDestroy(TFileWriter* tw) {
-  if (tw == NULL) { return; }
+  if (tw == NULL) {
+    return;
+  }
   writerCtxDestroy(tw->ctx, false);
   free(tw);
 }
 
 IndexTFile* indexTFileCreate(const char* path) {
   TFileCache* cache = tfileCacheCreate(path);
-  if (cache == NULL) { return NULL; }
+  if (cache == NULL) {
+    return NULL;
+  }
 
   IndexTFile* tfile = calloc(1, sizeof(IndexTFile));
   if (tfile == NULL) {
@@ -340,21 +358,27 @@ IndexTFile* indexTFileCreate(const char* path) {
   return tfile;
 }
 void indexTFileDestroy(IndexTFile* tfile) {
-  if (tfile == NULL) { return; }
+  if (tfile == NULL) {
+    return;
+  }
   tfileCacheDestroy(tfile->cache);
   free(tfile);
 }
 
 int indexTFileSearch(void* tfile, SIndexTermQuery* query, SArray* result) {
   int ret = -1;
-  if (tfile == NULL) { return ret; }
+  if (tfile == NULL) {
+    return ret;
+  }
 
   IndexTFile* pTfile = (IndexTFile*)tfile;
 
   SIndexTerm* term = query->term;
   ICacheKey key = {.suid = term->suid, .colType = term->colType, .colName = term->colName, .nColName = term->nColName};
   TFileReader* reader = tfileCacheGet(pTfile->cache, &key);
-  if (reader == NULL) { return 0; }
+  if (reader == NULL) {
+    return 0;
+  }
 
   return tfileReaderSearch(reader, query, result);
 }
@@ -373,7 +397,9 @@ static bool tfileIteratorNext(Iterate* iiter) {
 
   TFileFstIter*          tIter = iiter->iter;
   StreamWithStateResult* rt = streamWithStateNextWith(tIter->st, NULL);
-  if (rt == NULL) { return false; }
+  if (rt == NULL) {
+    return false;
+  }
 
   int32_t sz = 0;
   char*   ch = (char*)fstSliceData(&rt->data, &sz);
@@ -383,7 +409,9 @@ static bool tfileIteratorNext(Iterate* iiter) {
   offset = (uint64_t)(rt->out.out);
   swsResultDestroy(rt);
   // set up iterate value
-  if (tfileReaderLoadTableIds(tIter->rdr, offset, iv->val) != 0) { return false; }
+  if (tfileReaderLoadTableIds(tIter->rdr, offset, iv->val) != 0) {
+    return false;
+  }
 
   iv->colVal = colVal;
   return true;
@@ -394,7 +422,9 @@ static IterateValue* tifileIterateGetValue(Iterate* iter) { return &iter->val; }
 
 static TFileFstIter* tfileFstIteratorCreate(TFileReader* reader) {
   TFileFstIter* tIter = calloc(1, sizeof(TFileFstIter));
-  if (tIter == NULL) { return NULL; }
+  if (tIter == NULL) {
+    return NULL;
+  }
 
   tIter->ctx = automCtxCreate(NULL, AUTOMATION_ALWAYS);
   tIter->fb = fstSearch(reader->fst, tIter->ctx);
@@ -404,7 +434,9 @@ static TFileFstIter* tfileFstIteratorCreate(TFileReader* reader) {
 }
 
 Iterate* tfileIteratorCreate(TFileReader* reader) {
-  if (reader == NULL) { return NULL; }
+  if (reader == NULL) {
+    return NULL;
+  }
 
   Iterate* iter = calloc(1, sizeof(Iterate));
   iter->iter = tfileFstIteratorCreate(reader);
@@ -419,7 +451,9 @@ Iterate* tfileIteratorCreate(TFileReader* reader) {
   return iter;
 }
 void tfileIteratorDestroy(Iterate* iter) {
-  if (iter == NULL) { return; }
+  if (iter == NULL) {
+    return;
+  }
 
   IterateValue* iv = &iter->val;
   iterateValueDestroy(iv, true);
@@ -434,7 +468,9 @@ void tfileIteratorDestroy(Iterate* iter) {
 }
 
 TFileReader* tfileGetReaderByCol(IndexTFile* tf, uint64_t suid, char* colName) {
-  if (tf == NULL) { return NULL; }
+  if (tf == NULL) {
+    return NULL;
+  }
   ICacheKey key = {.suid = suid, .colType = TSDB_DATA_TYPE_BINARY, .colName = colName, .nColName = strlen(colName)};
   return tfileCacheGet(tf->cache, &key);
 }
@@ -446,7 +482,9 @@ static int tfileUidCompare(const void* a, const void* b) {
 }
 static int tfileStrCompare(const void* a, const void* b) {
   int ret = strcmp((char*)a, (char*)b);
-  if (ret == 0) { return ret; }
+  if (ret == 0) {
+    return ret;
+  }
   return ret < 0 ? -1 : 1;
 }
 
@@ -461,13 +499,17 @@ static int tfileValueCompare(const void* a, const void* b, const void* param) {
 
 TFileValue* tfileValueCreate(char* val) {
   TFileValue* tf = calloc(1, sizeof(TFileValue));
-  if (tf == NULL) { return NULL; }
+  if (tf == NULL) {
+    return NULL;
+  }
   tf->colVal = tstrdup(val);
   tf->tableId = taosArrayInit(32, sizeof(uint64_t));
   return tf;
 }
 int tfileValuePush(TFileValue* tf, uint64_t val) {
-  if (tf == NULL) { return -1; }
+  if (tf == NULL) {
+    return -1;
+  }
   taosArrayPush(tf->tableId, &val);
   return 0;
 }
@@ -489,7 +531,9 @@ static int tfileWriteFstOffset(TFileWriter* tw, int32_t offset) {
   int32_t fstOffset = offset + sizeof(tw->header.fstOffset);
   tw->header.fstOffset = fstOffset;
 
-  if (sizeof(fstOffset) != tw->ctx->write(tw->ctx, (char*)&fstOffset, sizeof(fstOffset))) { return -1; }
+  if (sizeof(fstOffset) != tw->ctx->write(tw->ctx, (char*)&fstOffset, sizeof(fstOffset))) {
+    return -1;
+  }
   indexInfo("tfile write fst offset: %d", tw->ctx->size(tw->ctx));
   tw->offset += sizeof(fstOffset);
   return 0;
@@ -502,7 +546,9 @@ static int tfileWriteHeader(TFileWriter* writer) {
 
   indexInfo("tfile pre write header size: %d", writer->ctx->size(writer->ctx));
   int nwrite = writer->ctx->write(writer->ctx, buf, sizeof(buf));
-  if (sizeof(buf) != nwrite) { return -1; }
+  if (sizeof(buf) != nwrite) {
+    return -1;
+  }
 
   indexInfo("tfile after write header size: %d", writer->ctx->size(writer->ctx));
   writer->offset = nwrite;
@@ -556,7 +602,9 @@ static int tfileReaderLoadFst(TFileReader* reader) {
   static int FST_MAX_SIZE = 64 * 1024 * 1024;
 
   char* buf = calloc(1, sizeof(char) * FST_MAX_SIZE);
-  if (buf == NULL) { return -1; }
+  if (buf == NULL) {
+    return -1;
+  }
 
   WriterCtx* ctx = reader->ctx;
   int        size = ctx->size(ctx);
@@ -586,12 +634,16 @@ static int tfileReaderLoadTableIds(TFileReader* reader, int32_t offset, SArray*
 
   int32_t total = sizeof(uint64_t) * nid;
   char*   buf = calloc(1, total);
-  if (buf == NULL) { return -1; }
+  if (buf == NULL) {
+    return -1;
+  }
 
   nread = ctx->readFrom(ctx, buf, total, offset + sizeof(nid));
   assert(total == nread);
 
-  for (int32_t i = 0; i < nid; i++) { taosArrayPush(result, (uint64_t*)buf + i); }
+  for (int32_t i = 0; i < nid; i++) {
+    taosArrayPush(result, (uint64_t*)buf + i);
+  }
   free(buf);
   return 0;
 }
@@ -615,13 +667,17 @@ static int tfileReaderVerify(TFileReader* reader) {
 }
 
 void tfileReaderRef(TFileReader* reader) {
-  if (reader == NULL) { return; }
+  if (reader == NULL) {
+    return;
+  }
   int ref = T_REF_INC(reader);
   UNUSED(ref);
 }
 
 void tfileReaderUnRef(TFileReader* reader) {
-  if (reader == NULL) { return; }
+  if (reader == NULL) {
+    return;
+  }
   int ref = T_REF_DEC(reader);
   if (ref == 0) {
     // do nothing
@@ -637,11 +693,15 @@ static SArray* tfileGetFileList(const char* path) {
   uint32_t version;
 
   DIR* dir = opendir(path);
-  if (NULL == dir) { return NULL; }
+  if (NULL == dir) {
+    return NULL;
+  }
   struct dirent* entry;
   while ((entry = readdir(dir)) != NULL) {
     char* file = entry->d_name;
-    if (0 != tfileParseFileName(file, &suid, buf, &version)) { continue; }
+    if (0 != tfileParseFileName(file, &suid, buf, &version)) {
+      continue;
+    }
 
     size_t len = strlen(path) + 1 + strlen(file) + 1;
     char*  buf = calloc(1, len);
diff --git a/source/libs/index/test/CMakeLists.txt b/source/libs/index/test/CMakeLists.txt
index 3957554748..665dfd7318 100644
--- a/source/libs/index/test/CMakeLists.txt
+++ b/source/libs/index/test/CMakeLists.txt
@@ -1,5 +1,7 @@
 add_executable(indexTest "")
 add_executable(fstTest "")
+add_executable(fstUT "")
+
 target_sources(indexTest
   PRIVATE 
   "indexTests.cc" 
@@ -8,6 +10,11 @@ target_sources(fstTest
   PRIVATE 
   "fstTest.cc" 
 )
+
+target_sources(fstUT
+  PRIVATE 
+  "fstUT.cc" 
+)
 target_include_directories ( indexTest
   PUBLIC
   "${CMAKE_SOURCE_DIR}/include/libs/index" 
@@ -18,6 +25,12 @@ target_include_directories ( fstTest
   "${CMAKE_SOURCE_DIR}/include/libs/index" 
   "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 ) 
+
+target_include_directories ( fstUT 
+  PUBLIC
+  "${CMAKE_SOURCE_DIR}/include/libs/index" 
+  "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
+) 
 target_link_libraries (indexTest
   os  
   util
@@ -32,6 +45,13 @@ target_link_libraries (fstTest
   gtest_main
   index
 )
+target_link_libraries (fstUT
+  os  
+  util
+  common
+  gtest_main
+  index
+)
 
 
 #add_test(
diff --git a/source/libs/index/test/fstTest.cc b/source/libs/index/test/fstTest.cc
index a2c0046f9a..65118a2bce 100644
--- a/source/libs/index/test/fstTest.cc
+++ b/source/libs/index/test/fstTest.cc
@@ -58,7 +58,9 @@ class FstReadMemory {
   bool init() {
     char* buf = (char*)calloc(1, sizeof(char) * _size);
     int   nRead = fstCountingWriterRead(_w, (uint8_t*)buf, _size);
-    if (nRead <= 0) { return false; }
+    if (nRead <= 0) {
+      return false;
+    }
     _size = nRead;
     _s = fstSliceCreate((uint8_t*)buf, _size);
     _fst = fstCreate(&_s);
@@ -97,7 +99,8 @@ class FstReadMemory {
       printf("key: %s, val: %" PRIu64 "\n", key.c_str(), (uint64_t)(rt->out.out));
       swsResultDestroy(rt);
     }
-    for (size_t i = 0; i < result.size(); i++) {}
+    for (size_t i = 0; i < result.size(); i++) {
+    }
     std::cout << std::endl;
     return true;
   }
@@ -173,7 +176,9 @@ void checkMillonWriteAndReadOfFst() {
   delete fw;
   FstReadMemory* fr = new FstReadMemory(1024 * 64 * 1024);
 
-  if (fr->init()) { printf("success to init fst read"); }
+  if (fr->init()) {
+    printf("success to init fst read");
+  }
 
   Performance_fstReadRecords(fr);
   tfCleanup();
diff --git a/source/libs/index/test/fstUT.cc b/source/libs/index/test/fstUT.cc
new file mode 100644
index 0000000000..47215693bb
--- /dev/null
+++ b/source/libs/index/test/fstUT.cc
@@ -0,0 +1,232 @@
+
+#include <gtest/gtest.h>
+#include <algorithm>
+#include <iostream>
+#include <string>
+#include <thread>
+#include <vector>
+#include "index.h"
+#include "indexInt.h"
+#include "index_cache.h"
+#include "index_fst.h"
+#include "index_fst_counting_writer.h"
+#include "index_fst_util.h"
+#include "index_tfile.h"
+#include "tglobal.h"
+#include "tskiplist.h"
+#include "tutil.h"
+#include "ulog.h"
+
+static std::string dir = "/tmp/index";
+
+static char indexlog[PATH_MAX] = {0};
+static char tindex[PATH_MAX] = {0};
+static char tindexDir[PATH_MAX] = {0};
+
+static void EnvInit() {
+  tfInit();
+
+  std::string path = dir;
+  taosRemoveDir(path.c_str());
+  taosMkDir(path.c_str());
+  // init log file
+  snprintf(indexlog, PATH_MAX, "%s/tindex.idx", path.c_str());
+  if (taosInitLog(indexlog, tsNumOfLogLines, 1) != 0) {
+    printf("failed to init log");
+  }
+  // init index file
+  memset(tindex, 0, sizeof(tindex));
+  snprintf(tindex, PATH_MAX, "%s/tindex.idx", path.c_str());
+}
+static void EnvCleanup() {}
+class FstWriter {
+ public:
+  FstWriter() {
+    _wc = writerCtxCreate(TFile, tindex, false, 64 * 1024 * 1024);
+    _b = fstBuilderCreate(_wc, 0);
+  }
+  bool Put(const std::string& key, uint64_t val) {
+    // char buf[128] = {0};
+    // int  len = 0;
+    // taosMbsToUcs4(key.c_str(), key.size(), buf, 128, &len);
+    // FstSlice skey = fstSliceCreate((uint8_t*)buf, len);
+    FstSlice skey = fstSliceCreate((uint8_t*)key.c_str(), key.size());
+    bool     ok = fstBuilderInsert(_b, skey, val);
+
+    fstSliceDestroy(&skey);
+    return ok;
+  }
+  ~FstWriter() {
+    fstBuilderFinish(_b);
+    fstBuilderDestroy(_b);
+
+    writerCtxDestroy(_wc, false);
+  }
+
+ private:
+  FstBuilder* _b;
+  WriterCtx*  _wc;
+};
+
+class FstReadMemory {
+ public:
+  FstReadMemory(size_t size) {
+    _wc = writerCtxCreate(TFile, tindex, true, 64 * 1024);
+    _w = fstCountingWriterCreate(_wc);
+    _size = size;
+    memset((void*)&_s, 0, sizeof(_s));
+  }
+  bool init() {
+    char* buf = (char*)calloc(1, sizeof(char) * _size);
+    int   nRead = fstCountingWriterRead(_w, (uint8_t*)buf, _size);
+    if (nRead <= 0) {
+      return false;
+    }
+    _size = nRead;
+    _s = fstSliceCreate((uint8_t*)buf, _size);
+    _fst = fstCreate(&_s);
+    free(buf);
+    return _fst != NULL;
+  }
+  bool Get(const std::string& key, uint64_t* val) {
+    // char buf[128] = {0};
+    // int  len = 0;
+    // taosMbsToUcs4(key.c_str(), key.size(), buf, 128, &len);
+    // FstSlice skey = fstSliceCreate((uint8_t*)buf, len);
+
+    FstSlice skey = fstSliceCreate((uint8_t*)key.c_str(), key.size());
+    bool     ok = fstGet(_fst, &skey, val);
+    fstSliceDestroy(&skey);
+    return ok;
+  }
+  bool GetWithTimeCostUs(const std::string& key, uint64_t* val, uint64_t* elapse) {
+    int64_t s = taosGetTimestampUs();
+    bool    ok = this->Get(key, val);
+    int64_t e = taosGetTimestampUs();
+    *elapse = e - s;
+    return ok;
+  }
+  // add later
+  bool Search(AutomationCtx* ctx, std::vector<uint64_t>& result) {
+    FstStreamBuilder*      sb = fstSearch(_fst, ctx);
+    StreamWithState*       st = streamBuilderIntoStream(sb);
+    StreamWithStateResult* rt = NULL;
+    while ((rt = streamWithStateNextWith(st, NULL)) != NULL) {
+      // result.push_back((uint64_t)(rt->out.out));
+      FstSlice*   s = &rt->data;
+      int32_t     sz = 0;
+      char*       ch = (char*)fstSliceData(s, &sz);
+      std::string key(ch, sz);
+      printf("key: %s, val: %" PRIu64 "\n", key.c_str(), (uint64_t)(rt->out.out));
+      swsResultDestroy(rt);
+    }
+    for (size_t i = 0; i < result.size(); i++) {
+    }
+    std::cout << std::endl;
+    return true;
+  }
+  bool SearchWithTimeCostUs(AutomationCtx* ctx, std::vector<uint64_t>& result) {
+    int64_t s = taosGetTimestampUs();
+    bool    ok = this->Search(ctx, result);
+    int64_t e = taosGetTimestampUs();
+    return ok;
+  }
+
+  ~FstReadMemory() {
+    fstCountingWriterDestroy(_w);
+    fstDestroy(_fst);
+    fstSliceDestroy(&_s);
+    writerCtxDestroy(_wc, false);
+    tfCleanup();
+  }
+
+ private:
+  FstCountingWriter* _w;
+  Fst*               _fst;
+  FstSlice           _s;
+  WriterCtx*         _wc;
+  size_t             _size;
+};
+
+class FstWriterEnv : public ::testing::Test {
+ protected:
+  virtual void SetUp() { fw = new FstWriter(); }
+  virtual void TearDown() { delete fw; }
+  FstWriter*   fw = NULL;
+};
+
+class FstReadEnv : public ::testing::Test {
+ protected:
+  virtual void   SetUp() { fr = new FstReadMemory(1024); }
+  virtual void   TearDown() { delete fr; }
+  FstReadMemory* fr = NULL;
+};
+
+class TFst {
+ public:
+  void CreateWriter() { fw = new FstWriter; }
+  void ReCreateWriter() {
+    if (fw != NULL) delete fw;
+    fw = new FstWriter;
+  }
+  void DestroyWriter() {
+    if (fw != NULL) delete fw;
+  }
+  void CreateReader() {
+    fr = new FstReadMemory(1024);
+    fr->init();
+  }
+  void ReCreateReader() {
+    if (fr != NULL) delete fr;
+    fr = new FstReadMemory(1024);
+  }
+  void DestroyReader() {
+    delete fr;
+    fr = NULL;
+  }
+  bool Put(const std::string& k, uint64_t v) {
+    if (fw == NULL) {
+      return false;
+    }
+    return fw->Put(k, v);
+  }
+  bool Get(const std::string& k, uint64_t* v) {
+    if (fr == NULL) {
+      return false;
+    }
+    return fr->Get(k, v);
+  }
+
+ private:
+  FstWriter*     fw;
+  FstReadMemory* fr;
+};
+class FstEnv : public ::testing::Test {
+ protected:
+  virtual void SetUp() {
+    EnvInit();
+    fst = new TFst;
+  }
+  virtual void TearDown() { delete fst; }
+  TFst*        fst;
+};
+
+TEST_F(FstEnv, writeNormal) {
+  fst->CreateWriter();
+  std::string str("aa");
+  for (int i = 0; i < 10; i++) {
+    str[0] = 'a' + i;
+    str.resize(2);
+    assert(fst->Put(str, i) == true);
+  }
+  // order failed
+  assert(fst->Put("aa", 1) == false);
+
+  fst->DestroyWriter();
+
+  fst->CreateReader();
+  uint64_t val;
+  assert(fst->Get("a", &val) == false);
+  assert(fst->Get("aa", &val) == true);
+  assert(val == 0);
+}