diff --git a/src/kit/shell/src/shellWindows.c b/src/kit/shell/src/shellWindows.c
index ce986813918249ebe501e92d3af307a67c296907..a92831de25cad262365e2a95163d83aa8fc8355f 100644
--- a/src/kit/shell/src/shellWindows.c
+++ b/src/kit/shell/src/shellWindows.c
@@ -45,6 +45,10 @@ void printHelp() {
   printf("%s%s%s\n", indent, indent, "Database to use when connecting to the server.");
   printf("%s%s\n", indent, "-t");
   printf("%s%s%s\n", indent, indent, "Time zone of the shell, default is local.");
+  printf("%s%s\n", indent, "-n");
+  printf("%s%s%s\n", indent, indent, "Net role when network connectivity test, default is startup, options: client|server|rpc|startup.");
+  printf("%s%s\n", indent, "-l");
+  printf("%s%s%s\n", indent, indent, "Packet length used for net test, default is 1000 bytes.");
 
   exit(EXIT_SUCCESS);
 }
@@ -137,6 +141,24 @@ void shellParseArgument(int argc, char *argv[], SShellArguments *arguments) {
         exit(EXIT_FAILURE);
       }
     }
+    // For time zone
+    else if (strcmp(argv[i], "-n") == 0) {
+      if (i < argc - 1) {
+        arguments->netTestRole = argv[++i];
+      } else {
+        fprintf(stderr, "option -n requires an argument\n");
+        exit(EXIT_FAILURE);
+      }
+    }
+    // For time zone
+    else if (strcmp(argv[i], "-l") == 0) {
+      if (i < argc - 1) {
+        arguments->pktLen = atoi(argv[++i]);
+      } else {
+        fprintf(stderr, "option -l requires an argument\n");
+        exit(EXIT_FAILURE);
+      }
+    }
     // For temperory command TODO
     else if (strcmp(argv[i], "--help") == 0) {
       printHelp();
diff --git a/src/util/src/tnettest.c b/src/util/src/tnettest.c
index c269d9a1ffe07c162123c44c397aba0da9593068..89601147a5923ac413800bdb6d134b266f0663b9 100644
--- a/src/util/src/tnettest.c
+++ b/src/util/src/tnettest.c
@@ -43,12 +43,13 @@ static void *taosNetBindUdpPort(void *sarg) {
   char       buffer[BUFFER_SIZE];
   int32_t    iDataNum;
   socklen_t  sin_size;
+  int32_t bufSize = 1024000;
 
   struct sockaddr_in server_addr;
   struct sockaddr_in clientAddr;
 
   if ((serverSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
-    uError("failed to create udp socket since %s", strerror(errno));
+    uError("failed to create UDP socket since %s", strerror(errno));
     return NULL;
   }
 
@@ -58,11 +59,23 @@ static void *taosNetBindUdpPort(void *sarg) {
   server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
 
   if (bind(serverSocket, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0) {
-    uError("failed to bind udp port:%d since %s", port, strerror(errno));
+    uError("failed to bind UDP port:%d since %s", port, strerror(errno));
     return NULL;
   }
 
-  uInfo("udp server at port:%d is listening", port);
+  if (taosSetSockOpt(serverSocket, SOL_SOCKET, SO_SNDBUF, (void *)&bufSize, sizeof(bufSize)) != 0) {
+    uError("failed to set the send buffer size for UDP socket\n");
+    taosCloseSocket(serverSocket);
+    return NULL;
+  }
+
+  if (taosSetSockOpt(serverSocket, SOL_SOCKET, SO_RCVBUF, (void *)&bufSize, sizeof(bufSize)) != 0) {
+    uError("failed to set the receive buffer size for UDP socket\n");
+    taosCloseSocket(serverSocket);
+    return NULL;
+  }
+
+  uInfo("UDP server at port:%d is listening", port);
 
   while (1) {
     memset(buffer, 0, BUFFER_SIZE);
@@ -74,10 +87,13 @@ static void *taosNetBindUdpPort(void *sarg) {
       continue;
     }
 
+    uInfo("UDP: recv:%d bytes from %s at %d", iDataNum, taosInetNtoa(clientAddr.sin_addr), port);
+
     if (iDataNum > 0) {
-      uInfo("UDP: recv:%d bytes from %s:%d", iDataNum, taosInetNtoa(clientAddr.sin_addr), port);
-      sendto(serverSocket, buffer, iDataNum, 0, (struct sockaddr *)&clientAddr, (int32_t)sin_size);
+      iDataNum = taosSendto(serverSocket, buffer, iDataNum, 0, (struct sockaddr *)&clientAddr, (int32_t)sin_size);
     }
+
+    uInfo("UDP: send:%d bytes to %s at %d", iDataNum, taosInetNtoa(clientAddr.sin_addr), port);
   }
 
   taosCloseSocket(serverSocket);
@@ -94,10 +110,9 @@ static void *taosNetBindTcpPort(void *sarg) {
   int32_t    addr_len = sizeof(clientAddr);
   SOCKET     client;
   char       buffer[BUFFER_SIZE];
-  int32_t    iDataNum = 0;
 
   if ((serverSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) {
-    uError("failed to create tcp socket since %s", strerror(errno));
+    uError("failed to create TCP socket since %s", strerror(errno));
     return NULL;
   }
 
@@ -106,130 +121,103 @@ static void *taosNetBindTcpPort(void *sarg) {
   server_addr.sin_port = htons(port);
   server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
 
+  int32_t reuse = 1;
+  if (taosSetSockOpt(serverSocket, SOL_SOCKET, SO_REUSEADDR, (void *)&reuse, sizeof(reuse)) < 0) {
+    uError("setsockopt SO_REUSEADDR failed: %d (%s)", errno, strerror(errno));
+    taosCloseSocket(serverSocket);
+    return NULL;
+  }
+
   if (bind(serverSocket, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0) {
-    uError("failed to bind tcp port:%d since %s", port, strerror(errno));
+    uError("failed to bind TCP port:%d since %s", port, strerror(errno));
     return NULL;
   }
 
-  if (listen(serverSocket, 5) < 0) {
-    uError("failed to listen tcp port:%d since %s", port, strerror(errno));
+  
+  if (taosKeepTcpAlive(serverSocket) < 0) {
+    uError("failed to set tcp server keep-alive option since %s", strerror(errno));
+    taosCloseSocket(serverSocket);
     return NULL;
   }
 
-  uInfo("tcp server at port:%d is listening", port);
+  if (listen(serverSocket, 10) < 0) {
+    uError("failed to listen TCP port:%d since %s", port, strerror(errno));
+    return NULL;
+  }
+
+  uInfo("TCP server at port:%d is listening", port);
 
   while (1) {
     client = accept(serverSocket, (struct sockaddr *)&clientAddr, (socklen_t *)&addr_len);
     if (client < 0) {
-      uDebug("failed to accept from tcp port:%d since %s", port, strerror(errno));
+      uDebug("TCP: failed to accept at port:%d since %s", port, strerror(errno));
       continue;
     }
 
-    iDataNum = 0;
-    memset(buffer, 0, BUFFER_SIZE);
-    int32_t nleft, nread;
-    char *  ptr = buffer;
-    nleft = pinfo->pktLen;
-
-    while (nleft > 0) {
-      nread = recv(client, ptr, BUFFER_SIZE, 0);
-
-      if (nread == 0) {
-        break;
-      } else if (nread < 0) {
-        if (errno == EINTR) {
-          continue;
-        } else {
-          uError("failed to perform recv func at %d since %s", port, strerror(errno));
-          taosCloseSocket(serverSocket);
-          return NULL;
-        }
-      } else {
-        nleft -= nread;
-        ptr += nread;
-        iDataNum += nread;
-      }
+    int32_t ret = taosReadMsg(client, buffer, pinfo->pktLen);
+    if (ret < 0 || ret != pinfo->pktLen) {
+      uError("TCP: failed to read %d bytes at port:%d since %s", pinfo->pktLen, port, strerror(errno));
+      taosCloseSocket(serverSocket);
+      return NULL;
     }
 
-    if (iDataNum > 0) {
-      uInfo("TCP: recv:%d bytes from %s:%d", iDataNum, taosInetNtoa(clientAddr.sin_addr), port);
-      send(client, buffer, iDataNum, 0);
+    uInfo("TCP: read:%d bytes from %s at %d", pinfo->pktLen, taosInetNtoa(clientAddr.sin_addr), port);
+
+    ret = taosWriteMsg(client, buffer, pinfo->pktLen);
+    if (ret < 0) {
+      uError("TCP: failed to write %d bytes at %d since %s", pinfo->pktLen, port, strerror(errno));
+      taosCloseSocket(serverSocket);
+      return NULL;
     }
+
+    uInfo("TCP: write:%d bytes to %s at %d", pinfo->pktLen, taosInetNtoa(clientAddr.sin_addr), port);
   }
-  
+
   taosCloseSocket(serverSocket);
   return NULL;
 }
 
 static int32_t taosNetCheckTcpPort(STestInfo *info) {
-  SOCKET  clientSocket;
-  char    sendbuf[BUFFER_SIZE];
-  char    recvbuf[BUFFER_SIZE];
-  int32_t iDataNum = 0;
+  SOCKET clientSocket;
+  char   buffer[BUFFER_SIZE] = {0};
 
-  struct sockaddr_in serverAddr;
   if ((clientSocket = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
-    uError("failed to create tcp client socket since %s", strerror(errno));
+    uError("failed to create TCP client socket since %s", strerror(errno));
     return -1;
   }
 
-  // set send and recv overtime
-  struct timeval timeout;
-  timeout.tv_sec = 2;   // s
-  timeout.tv_usec = 0;  // us
-  if (setsockopt(clientSocket, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout, sizeof(struct timeval)) == -1) {
-    uError("failed to setsockopt send timer since %s", strerror(errno));
-  }
-  if (setsockopt(clientSocket, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(struct timeval)) == -1) {
-    uError("failed to setsockopt recv timer since %s", strerror(errno));
+  int32_t reuse = 1;
+  if (taosSetSockOpt(clientSocket, SOL_SOCKET, SO_REUSEADDR, (void *)&reuse, sizeof(reuse)) < 0) {
+    uError("setsockopt SO_REUSEADDR failed: %d (%s)", errno, strerror(errno));
+    taosCloseSocket(clientSocket);
+    return -1;
   }
 
+  struct sockaddr_in serverAddr;
+  memset((char *)&serverAddr, 0, sizeof(serverAddr));
   serverAddr.sin_family = AF_INET;
-  serverAddr.sin_port = htons(info->port);
+  serverAddr.sin_port = (uint16_t)htons((uint16_t)info->port);
   serverAddr.sin_addr.s_addr = info->hostIp;
 
   if (connect(clientSocket, (struct sockaddr *)&serverAddr, sizeof(serverAddr)) < 0) {
-    uError("failed to connect port:%d since %s", info->port, strerror(errno));
+    uError("TCP: failed to connect port %s:%d since %s", taosIpStr(info->hostIp), info->port, strerror(errno));
     return -1;
   }
 
-  memset(sendbuf, 0, BUFFER_SIZE);
-  memset(recvbuf, 0, BUFFER_SIZE);
-
-  struct in_addr ipStr;
-  memcpy(&ipStr, &info->hostIp, 4);
-  sprintf(sendbuf, "client send tcp pkg to %s:%d, content: 1122334455", taosInetNtoa(ipStr), info->port);
-  sprintf(sendbuf + info->pktLen - 16, "1122334455667788");
-
-  send(clientSocket, sendbuf, info->pktLen, 0);
+  taosKeepTcpAlive(clientSocket);
 
-  memset(recvbuf, 0, BUFFER_SIZE);
-  int32_t nleft, nread;
-  char *  ptr = recvbuf;
-  nleft = info->pktLen;
+  sprintf(buffer, "client send TCP pkg to %s:%d, content: 1122334455", taosIpStr(info->hostIp), info->port);
+  sprintf(buffer + info->pktLen - 16, "1122334455667788");
 
-  while (nleft > 0) {
-    nread = recv(clientSocket, ptr, BUFFER_SIZE, 0);;
-  
-    if (nread == 0) {
-      break;
-    } else if (nread < 0) {
-      if (errno == EINTR) {
-        continue;
-      } else {
-        uError("faild to recv pkg from TCP port:%d since %s", info->port, strerror(errno));
-        taosCloseSocket(clientSocket);
-        return -1;
-      }
-    } else {
-      nleft -= nread;
-      ptr += nread;
-      iDataNum += nread;
-    }
+  int32_t ret = taosWriteMsg(clientSocket, buffer, info->pktLen);
+  if (ret < 0) {
+    uError("TCP: failed to write msg to %s:%d since %s", taosIpStr(info->hostIp), info->port, strerror(errno));
+    return -1;
   }
 
-  if (iDataNum < info->pktLen) {
-    uError("TCP: received ack:%d bytes, less than send:%d bytes from port:%d", iDataNum, info->pktLen, info->port);
+  ret = taosReadMsg(clientSocket, buffer, info->pktLen);
+  if (ret < 0) {
+    uError("TCP: failed to read msg from %s:%d since %s", taosIpStr(info->hostIp), info->port, strerror(errno));
     return -1;
   }
 
@@ -239,9 +227,9 @@ static int32_t taosNetCheckTcpPort(STestInfo *info) {
 
 static int32_t taosNetCheckUdpPort(STestInfo *info) {
   SOCKET  clientSocket;
-  char    sendbuf[BUFFER_SIZE];
-  char    recvbuf[BUFFER_SIZE];
+  char    buffer[BUFFER_SIZE] = {0};
   int32_t iDataNum = 0;
+  int32_t bufSize = 1024000;
 
   struct sockaddr_in serverAddr;
 
@@ -250,41 +238,39 @@ static int32_t taosNetCheckUdpPort(STestInfo *info) {
     return -1;
   }
 
-  // set overtime
-  struct timeval timeout;
-  timeout.tv_sec = 2;   // s
-  timeout.tv_usec = 0;  // us
-  if (setsockopt(clientSocket, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout, sizeof(struct timeval)) == -1) {
-    uError("failed to setsockopt send timer since %s", strerror(errno));
+  if (taosSetSockOpt(clientSocket, SOL_SOCKET, SO_SNDBUF, (void *)&bufSize, sizeof(bufSize)) != 0) {
+    uError("failed to set the send buffer size for UDP socket\n");
+    return -1;
   }
-  if (setsockopt(clientSocket, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(struct timeval)) == -1) {
-    uError("failed to setsockopt recv timer since %s", strerror(errno));
+
+  if (taosSetSockOpt(clientSocket, SOL_SOCKET, SO_RCVBUF, (void *)&bufSize, sizeof(bufSize)) != 0) {
+    uError("failed to set the receive buffer size for UDP socket\n");
+    return -1;
   }
 
   serverAddr.sin_family = AF_INET;
   serverAddr.sin_port = htons(info->port);
   serverAddr.sin_addr.s_addr = info->hostIp;
 
-  memset(sendbuf, 0, BUFFER_SIZE);
-  memset(recvbuf, 0, BUFFER_SIZE);
-
   struct in_addr ipStr;
   memcpy(&ipStr, &info->hostIp, 4);
-  sprintf(sendbuf, "client send udp pkg to %s:%d, content: 1122334455", taosInetNtoa(ipStr), info->port);
-  sprintf(sendbuf + info->pktLen - 16, "1122334455667788");
+  sprintf(buffer, "client send udp pkg to %s:%d, content: 1122334455", taosInetNtoa(ipStr), info->port);
+  sprintf(buffer + info->pktLen - 16, "1122334455667788");
 
   socklen_t sin_size = sizeof(*(struct sockaddr *)&serverAddr);
 
-  int32_t code = sendto(clientSocket, sendbuf, info->pktLen, 0, (struct sockaddr *)&serverAddr, (int32_t)sin_size);
-  if (code < 0) {
-    uError("failed to perform sendto func since %s", strerror(errno));
+  iDataNum = taosSendto(clientSocket, buffer, info->pktLen, 0, (struct sockaddr *)&serverAddr, (int32_t)sin_size);
+  if (iDataNum < 0 || iDataNum != info->pktLen) {
+    uError("UDP: failed to perform sendto func since %s", strerror(errno));
     return -1;
   }
 
-  iDataNum = recvfrom(clientSocket, recvbuf, BUFFER_SIZE, 0, (struct sockaddr *)&serverAddr, &sin_size);
+  memset(buffer, 0, BUFFER_SIZE);
+  sin_size = sizeof(*(struct sockaddr *)&serverAddr);
+  iDataNum = recvfrom(clientSocket, buffer, BUFFER_SIZE, 0, (struct sockaddr *)&serverAddr, &sin_size);
 
-  if (iDataNum < info->pktLen) {
-    uError("UDP: received ack:%d bytes, less than send:%d bytes from port:%d", iDataNum, info->pktLen, info->port);
+  if (iDataNum < 0 || iDataNum != info->pktLen) {
+    uError("UDP: received ack:%d bytes(expect:%d) from port:%d since %s", iDataNum, info->pktLen, info->port, strerror(errno));
     return -1;
   }
 
@@ -304,19 +290,18 @@ static void taosNetCheckPort(uint32_t hostIp, int32_t startPort, int32_t endPort
     info.port = port;
     ret = taosNetCheckTcpPort(&info);
     if (ret != 0) {
-      uError("failed to test tcp port:%d", port);
+      uError("failed to test TCP port:%d", port);
     } else {
-      uInfo("successed to test tcp port:%d", port);
+      uInfo("successed to test TCP port:%d", port);
     }
 
     ret = taosNetCheckUdpPort(&info);
     if (ret != 0) {
-      uError("failed to test udp port:%d", port);
+      uError("failed to test UDP port:%d", port);
     } else {
-      uInfo("successed to test udp port:%d", port);
+      uInfo("successed to test UDP port:%d", port);
     }
   }
-  return;
 }
 
 void *taosNetInitRpc(char *secretEncrypt, char spi) {
@@ -440,9 +425,9 @@ static void taosNetTestRpc(char *host, int32_t startPort, int32_t pkgLen) {
 
     int32_t ret = taosNetCheckRpc(host, port, sendpkgLen, spi, NULL);
     if (ret < 0) {
-      uError("failed to test tcp port:%d", port);
+      uError("failed to test TCP port:%d", port);
     } else {
-      uInfo("successed to test tcp port:%d", port);
+      uInfo("successed to test TCP port:%d", port);
     }
 
     if (pkgLen >= tsRpcMaxUdpSize) {
@@ -453,9 +438,9 @@ static void taosNetTestRpc(char *host, int32_t startPort, int32_t pkgLen) {
 
     ret = taosNetCheckRpc(host, port, pkgLen, spi, NULL);
     if (ret < 0) {
-      uError("failed to test udp port:%d", port);
+      uError("failed to test UDP port:%d", port);
     } else {
-      uInfo("successed to test udp port:%d", port);
+      uInfo("successed to test UDP port:%d", port);
     }
   }
 }
@@ -492,14 +477,15 @@ static void taosNetTestServer(char *host, int32_t startPort, int32_t pkgLen) {
     tcpInfo->pktLen = pkgLen;
 
     if (pthread_create(pids + i, NULL, taosNetBindTcpPort, tcpInfo) != 0) {
-      uInfo("failed to create tcp test thread, %s:%d", tcpInfo->hostFqdn, tcpInfo->port);
+      uInfo("failed to create TCP test thread, %s:%d", tcpInfo->hostFqdn, tcpInfo->port);
       exit(-1);
     }
 
     STestInfo *udpInfo = uinfos + i;
-    udpInfo->port = (uint16_t)(port + i);
+    udpInfo->port = port + i;
+    tcpInfo->pktLen = pkgLen;
     if (pthread_create(pids + num + i, NULL, taosNetBindUdpPort, udpInfo) != 0) {
-      uInfo("failed to create udp test thread, %s:%d", tcpInfo->hostFqdn, tcpInfo->port);
+      uInfo("failed to create UDP test thread, %s:%d", tcpInfo->hostFqdn, tcpInfo->port);
       exit(-1);
     }
   }
diff --git a/src/util/src/tnote.c b/src/util/src/tnote.c
index 82ce2c314d5051492f056ebb539e55d7b37c9ebf..f2db0b331619cac89aae14fe38d9cb0e65f9c034 100644
--- a/src/util/src/tnote.c
+++ b/src/util/src/tnote.c
@@ -228,7 +228,7 @@ static int32_t taosOpenNoteWithMaxLines(char *fn, int32_t maxLines, int32_t maxN
 }
 
 void taosNotePrintBuffer(SNoteObj *pNote, char *buffer, int32_t len) {
-  if (pNote->fd < 0) return;
+  if (pNote->fd <= 0) return;
   taosWrite(pNote->fd, buffer, len);
 
   if (pNote->maxLines > 0) {
diff --git a/src/vnode/src/vnodeMain.c b/src/vnode/src/vnodeMain.c
index e286a972dc97f94613614fdefea273cae7459f26..36983c1cf0e4b7bc3f86eb11132cc844f2a7e9be 100644
--- a/src/vnode/src/vnodeMain.c
+++ b/src/vnode/src/vnodeMain.c
@@ -441,7 +441,6 @@ static int32_t vnodeProcessTsdbStatus(void *arg, int32_t status, int32_t eno) {
 
   if (status == TSDB_STATUS_COMMIT_START) {
     pVnode->isCommiting = 1;
-    pVnode->fversion = pVnode->version;
     vDebug("vgId:%d, start commit, fver:%" PRIu64 " vver:%" PRIu64, pVnode->vgId, pVnode->fversion, pVnode->version);
     if (!vnodeInInitStatus(pVnode)) {
       return walRenew(pVnode->wal);
@@ -450,9 +449,10 @@ static int32_t vnodeProcessTsdbStatus(void *arg, int32_t status, int32_t eno) {
   }
 
   if (status == TSDB_STATUS_COMMIT_OVER) {
-    vDebug("vgId:%d, commit over, fver:%" PRIu64 " vver:%" PRIu64, pVnode->vgId, pVnode->fversion, pVnode->version);
     pVnode->isCommiting = 0;
     pVnode->isFull = 0;
+    pVnode->fversion = pVnode->version;
+    vDebug("vgId:%d, commit over, fver:%" PRIu64 " vver:%" PRIu64, pVnode->vgId, pVnode->fversion, pVnode->version);
     if (!vnodeInInitStatus(pVnode)) {
       walRemoveOneOldFile(pVnode->wal);
     }