diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index a11af4ba3791f76201775666bc8f008f43e28222..3be8141bfe0d62af79aceba74cd50ea0bed591a5 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -717,9 +717,19 @@ static void parse_args(int argc, char *argv[], SArguments *arguments) {
     if (strcmp(argv[i], "-f") == 0) {
       arguments->metaFile = argv[++i];
     } else if (strcmp(argv[i], "-c") == 0) {
+      if (argc == i+1) {
+        printHelp();
+        errorPrint("%s", "\n\t-c need a valid path following!\n");
+        exit(EXIT_FAILURE);
+      }
       tstrncpy(configDir, argv[++i], MAX_FILE_NAME_LEN);
 
     } else if (strcmp(argv[i], "-h") == 0) {
+      if (argc == i+1) {
+        printHelp();
+        errorPrint("%s", "\n\t-h need a valid string following!\n");
+        exit(EXIT_FAILURE);
+      }
       arguments->host = argv[++i];
     } else if (strcmp(argv[i], "-p") == 0) {
       if ((argc == i+1) ||
@@ -730,12 +740,32 @@ static void parse_args(int argc, char *argv[], SArguments *arguments) {
       }
       arguments->port = atoi(argv[++i]);
     } else if (strcmp(argv[i], "-u") == 0) {
+      if (argc == i+1) {
+        printHelp();
+        errorPrint("%s", "\n\t-u need a valid string following!\n");
+        exit(EXIT_FAILURE);
+      }
       arguments->user = argv[++i];
     } else if (strcmp(argv[i], "-P") == 0) {
+      if (argc == i+1) {
+        printHelp();
+        errorPrint("%s", "\n\t-P need a valid string following!\n");
+        exit(EXIT_FAILURE);
+      }
       arguments->password = argv[++i];
     } else if (strcmp(argv[i], "-o") == 0) {
+      if (argc == i+1) {
+        printHelp();
+        errorPrint("%s", "\n\t-o need a valid string following!\n");
+        exit(EXIT_FAILURE);
+      }
       arguments->output_file = argv[++i];
     } else if (strcmp(argv[i], "-s") == 0) {
+      if (argc == i+1) {
+        printHelp();
+        errorPrint("%s", "\n\t-s need a valid string following!\n");
+        exit(EXIT_FAILURE);
+      }
       arguments->sqlFile = argv[++i];
     } else if (strcmp(argv[i], "-q") == 0) {
       if ((argc == i+1) ||
@@ -762,8 +792,20 @@ static void parse_args(int argc, char *argv[], SArguments *arguments) {
       }
       arguments->insert_interval = atoi(argv[++i]);
     } else if (strcmp(argv[i], "-qt") == 0) {
+      if ((argc == i+1) ||
+        (!isStringNumber(argv[i+1]))) {
+        printHelp();
+        errorPrint("%s", "\n\t-qt need a number following!\n");
+        exit(EXIT_FAILURE);
+      }
       arguments->query_times = atoi(argv[++i]);
     } else if (strcmp(argv[i], "-B") == 0) {
+      if ((argc == i+1) ||
+        (!isStringNumber(argv[i+1]))) {
+        printHelp();
+        errorPrint("%s", "\n\t-B need a number following!\n");
+        exit(EXIT_FAILURE);
+      }
       arguments->interlace_rows = atoi(argv[++i]);
     } else if (strcmp(argv[i], "-r") == 0) {
       if ((argc == i+1) ||
@@ -790,6 +832,11 @@ static void parse_args(int argc, char *argv[], SArguments *arguments) {
       }
       arguments->num_of_DPT = atoi(argv[++i]);
     } else if (strcmp(argv[i], "-d") == 0) {
+      if (argc == i+1) {
+        printHelp();
+        errorPrint("%s", "\n\t-d need a valid string following!\n");
+        exit(EXIT_FAILURE);
+      }
       arguments->database = argv[++i];
     } else if (strcmp(argv[i], "-l") == 0) {
       if ((argc == i+1) ||
@@ -855,6 +902,12 @@ static void parse_args(int argc, char *argv[], SArguments *arguments) {
       }
       arguments->len_of_binary = atoi(argv[++i]);
     } else if (strcmp(argv[i], "-m") == 0) {
+      if ((argc == i+1) ||
+        (!isStringNumber(argv[i+1]))) {
+        printHelp();
+        errorPrint("%s", "\n\t-m need a number following!\n");
+        exit(EXIT_FAILURE);
+      }
       arguments->tb_prefix = argv[++i];
     } else if (strcmp(argv[i], "-N") == 0) {
       arguments->use_metric = false;
diff --git a/src/util/src/tlog.c b/src/util/src/tlog.c
index 448bb3ecd1bfa8ef17bd7c87a464c095e1093d6d..7f127fc396a13f0a7796dcb4ce1dd63ce96cb951 100644
--- a/src/util/src/tlog.c
+++ b/src/util/src/tlog.c
@@ -416,7 +416,8 @@ void taosPrintLog(const char *flags, int32_t dflag, const char *format, ...) {
     }
   }
 
-  if (dflag & DEBUG_SCREEN) taosWrite(1, buffer, (uint32_t)len);
+  if (dflag & DEBUG_SCREEN)
+      taosWrite(1, buffer, (uint32_t)len);
   if (dflag == 255) nInfo(buffer, len);
 }
 
diff --git a/src/util/src/tnettest.c b/src/util/src/tnettest.c
index 28abad356c156182b23feebd8d2e80ea4c914e52..131063b0de8b456ebd74011f74f95d199695b75b 100644
--- a/src/util/src/tnettest.c
+++ b/src/util/src/tnettest.c
@@ -291,16 +291,16 @@ 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);
+      printf("failed to test TCP port:%d\n", port);
     } else {
-      uInfo("successed to test TCP port:%d", port);
+      printf("successed to test TCP port:%d\n", port);
     }
 
     ret = taosNetCheckUdpPort(&info);
     if (ret != 0) {
-      uError("failed to test UDP port:%d", port);
+      printf("failed to test UDP port:%d\n", port);
     } else {
-      uInfo("successed to test UDP port:%d", port);
+      printf("successed to test UDP port:%d\n", port);
     }
   }
 }
@@ -464,9 +464,9 @@ 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);
+      printf("failed to test TCP port:%d\n", port);
     } else {
-      uInfo("successed to test TCP port:%d", port);
+      printf("successed to test TCP port:%d\n", port);
     }
 
     if (pkgLen >= tsRpcMaxUdpSize) {
@@ -477,9 +477,9 @@ 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);
+      printf("failed to test UDP port:%d\n", port);
     } else {
-      uInfo("successed to test UDP port:%d", port);
+      printf("successed to test UDP port:%d\n", port);
     }
   }
 
@@ -539,7 +539,7 @@ static void taosNetTestServer(char *host, int32_t startPort, int32_t pkgLen) {
 }
 
 void taosNetTest(char *role, char *host, int32_t port, int32_t pkgLen) {
-  tscEmbedded = 1;
+//  tscEmbedded = 1;
   if (host == NULL) host = tsLocalFqdn;
   if (port == 0) port = tsServerPort;
   if (pkgLen <= 10) pkgLen = 1000;
@@ -559,5 +559,5 @@ void taosNetTest(char *role, char *host, int32_t port, int32_t pkgLen) {
     taosNetTestStartup(host, port);
   }
 
-  tscEmbedded = 0;
+//  tscEmbedded = 0;
 }
diff --git a/src/util/src/ttimer.c b/src/util/src/ttimer.c
index 98334497772d60991a553b5d929404ce5e3437e4..865e1159c1995b2796682d64ee06de02442b7a25 100644
--- a/src/util/src/ttimer.c
+++ b/src/util/src/ttimer.c
@@ -538,7 +538,7 @@ static void taosTmrModuleInit(void) {
 
 void* taosTmrInit(int maxNumOfTmrs, int resolution, int longest, const char* label) {
   const char* ret = monotonicInit();
-  tmrInfo("ttimer monotonic clock source:%s", ret);
+  tmrDebug("ttimer monotonic clock source:%s", ret);
 
   pthread_once(&tmrModuleInit, taosTmrModuleInit);