Merge pull request #4876 from taosdata/hotfix/TD-2684

tuning tcp opt

src/rpc/src/rpcTcp.c

@@ -241,7 +241,7 @@ static void *taosAcceptTcpConnection(void *arg) {
     }
 
     taosKeepTcpAlive(connFd);
-    struct timeval to={1, 0};
+    struct timeval to={5, 0};
     int32_t ret = taosSetSockOpt(connFd, SOL_SOCKET, SO_RCVTIMEO, &to, sizeof(to));
     if (ret != 0) {
       taosCloseSocket(connFd);

src/util/src/tsocket.c

@@ -283,6 +283,7 @@ SOCKET taosOpenTcpClientSocket(uint32_t destIp, uint16_t destPort, uint32_t clie
   SOCKET  sockFd = 0;
   int32_t ret;
   struct sockaddr_in serverAddr, clientAddr;
+  int32_t bufSize = 1024 * 1024;
 
   sockFd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
 
@@ -300,6 +301,18 @@ SOCKET taosOpenTcpClientSocket(uint32_t destIp, uint16_t destPort, uint32_t clie
     return -1;
   }
 
+  if (taosSetSockOpt(sockFd, SOL_SOCKET, SO_SNDBUF, (void *)&bufSize, sizeof(bufSize)) != 0) {
+    uError("failed to set the send buffer size for TCP socket\n");
+    taosCloseSocket(sockFd);
+    return -1;
+  }
+
+  if (taosSetSockOpt(sockFd, SOL_SOCKET, SO_RCVBUF, (void *)&bufSize, sizeof(bufSize)) != 0) {
+    uError("failed to set the receive buffer size for TCP socket\n");
+    taosCloseSocket(sockFd);
+    return -1;
+  }
+
   if (clientIp != 0) {
     memset((char *)&clientAddr, 0, sizeof(clientAddr));
     clientAddr.sin_family = AF_INET;