diff --git a/src/common/src/tglobal.c b/src/common/src/tglobal.c
index bf824f0dbd6106d9c6cb4caffcb32cd16815ce9f..4fa66ffab046317bc880e4b4649091bf4130ce3b 100644
--- a/src/common/src/tglobal.c
+++ b/src/common/src/tglobal.c
@@ -321,22 +321,27 @@ void taosAddDataDir(int index, char *v1, int level, int primary) {
 
 #ifndef _STORAGE
 void taosReadDataDirCfg(char *v1, char *v2, char *v3) {
-  taosAddDataDir(0, tsDataDir, 0, 1);
-  tstrncpy(tsDiskCfg[0].dir, tsDataDir, TSDB_FILENAME_LEN);
+  if (tsDiskCfgNum == 1) {
+    SDiskCfg *cfg = &tsDiskCfg[0];
+    uInfo("dataDir:%s, level:%d primary:%d is replaced by %s", cfg->dir, cfg->level, cfg->primary, v1);
+  }
+  taosAddDataDir(0, v1, 0, 1);
+  tsDiskCfgNum = 1;
 }
-#endif
 
 void taosPrintDataDirCfg() {
   for (int i = 0; i < tsDiskCfgNum; ++i) {
     SDiskCfg *cfg = &tsDiskCfg[i];
-    uInfo(" dataDir:%s level:%d primary:%d", cfg->dir, cfg->level, cfg->primary);
+    uInfo(" dataDir: %s", cfg->dir);
   }
 }
+#endif
 
 static void taosCheckDataDirCfg() {
   if (tsDiskCfgNum <= 0) {
     taosAddDataDir(0, tsDataDir, 0, 1);
     tsDiskCfgNum = 1;
+    uTrace("dataDir:%s, level:0 primary:1 is configured by default", tsDataDir);
   }
 }
 
diff --git a/src/dnode/src/dnodeMain.c b/src/dnode/src/dnodeMain.c
index c4cdf7bee50b736266fd9fc9a4a92351bcd19ea2..16a7e09c993abbab6bb72cc2a20d32f7e900a4bd 100644
--- a/src/dnode/src/dnodeMain.c
+++ b/src/dnode/src/dnodeMain.c
@@ -104,7 +104,7 @@ int32_t dnodeInitSystem() {
   signal(SIGPIPE, SIG_IGN);
 
   if (dnodeCreateDir(tsLogDir) < 0) {
-   printf("failed to create dir: %s, reason: %s\n", tsLogDir, strerror(errno));
+   printf("failed to create log dir: %s, reason: %s\n", tsLogDir, strerror(errno));
    return -1;
   }
 
@@ -186,13 +186,13 @@ static int32_t dnodeInitStorage() {
   //TODO(dengyihao): no need to init here 
   tdGetMnodeRootDir(tsDataDir, tsMnodeDir);
   if (dnodeCreateDir(tsMnodeDir) < 0) {
-   dError("failed to create dir: %s, reason: %s", tsMnodeDir, strerror(errno));
+   dError("failed to create mnode dir: %s, reason: %s", tsMnodeDir, strerror(errno));
    return -1;
   } 
 
   tdGetDnodeRootDir(tsDataDir, tsDnodeDir);
   if (dnodeCreateDir(tsDnodeDir) < 0) {
-   dError("failed to create dir: %s, reason: %s", tsDnodeDir, strerror(errno));
+   dError("failed to create dnode dir: %s, reason: %s", tsDnodeDir, strerror(errno));
    return -1;
   }
 
@@ -205,13 +205,13 @@ static int32_t dnodeInitStorage() {
 
       tdGetVnodeRootDir(dirName, pDisk->dir);
       if (dnodeCreateDir(dirName) < 0) {
-        dError("failed to create dir: %s, reason: %s", dirName, strerror(errno));
+        dError("failed to create vnode dir: %s, reason: %s", dirName, strerror(errno));
         return -1;
       }
 
       tdGetVnodeBackRootDir(dirName, pDisk->dir);
       if (dnodeCreateDir(dirName) < 0) {
-        dError("failed to create dir: %s, reason: %s", dirName, strerror(errno));
+        dError("failed to create vnode back dir: %s, reason: %s", dirName, strerror(errno));
         return -1;
       }
     }
diff --git a/src/util/src/tconfig.c b/src/util/src/tconfig.c
index 80d911f3fc260e74f9643681774deaa1db4c24f9..c705848d5f53f9dffeea79e727e373996d8a608b 100644
--- a/src/util/src/tconfig.c
+++ b/src/util/src/tconfig.c
@@ -97,32 +97,34 @@ static void taosReadInt16Config(SGlobalCfg *cfg, char *input_value) {
   }
 }
 
-static void taosReadDirectoryConfig(SGlobalCfg *cfg, char *input_value) {
+static bool taosReadDirectoryConfig(SGlobalCfg *cfg, char *input_value) {
   int   length = (int)strlen(input_value);
   char *option = (char *)cfg->ptr;
   if (length <= 0 || length > cfg->ptrLength) {
-    uError("config option:%s, input value:%s, length out of range[0, %d], use default value:%s",
-           cfg->option, input_value, cfg->ptrLength, option);
+    uError("config option:%s, input value:%s, length out of range[0, %d], use default value:%s", cfg->option,
+           input_value, cfg->ptrLength, option);
+    return false;
   } else {
     if (cfg->cfgStatus <= TAOS_CFG_CSTATUS_FILE) {
       wordexp_t full_path;
       if (0 != wordexp(input_value, &full_path, 0)) {
         printf("\nconfig dir: %s wordexp fail! reason:%s\n", input_value, strerror(errno));
         wordfree(&full_path);
-        return;
+        return false;
       }
-      
+
       if (full_path.we_wordv != NULL && full_path.we_wordv[0] != NULL) {
         strcpy(option, full_path.we_wordv[0]);
       }
-      
+
       wordfree(&full_path);
 
       int code = taosMkDir(option, 0755);
       if (code != 0) {
         terrno = TAOS_SYSTEM_ERROR(errno);
-        uError("config option:%s, input value:%s, directory not exist, create fail:%s",
-             cfg->option, input_value, strerror(errno)); 
+        uError("config option:%s, input value:%s, directory not exist, create fail:%s", cfg->option, input_value,
+               strerror(errno));
+        return false;
       }
       cfg->cfgStatus = TAOS_CFG_CSTATUS_FILE;
     } else {
@@ -130,6 +132,8 @@ static void taosReadDirectoryConfig(SGlobalCfg *cfg, char *input_value) {
             tsCfgStatusStr[cfg->cfgStatus], option);
     }
   }
+
+  return true;
 }
 
 static void taosReadIpStrConfig(SGlobalCfg *cfg, char *input_value) {
@@ -225,8 +229,10 @@ static void taosReadConfigOption(const char *option, char *value, char *value2,
         taosReadDirectoryConfig(cfg, value);
         break;
       case TAOS_CFG_VTYPE_DATA_DIRCTORY:
-        taosReadDirectoryConfig(cfg, value);
-        taosReadDataDirCfg(value, value2, value3);
+        if (taosReadDirectoryConfig(cfg, value)) {
+          taosReadDataDirCfg(value, value2, value3);
+        }
+        break;
       default:
         uError("config option:%s, input value:%s, can't be recognized", option, value);
         break;
@@ -349,10 +355,11 @@ bool taosReadGlobalCfg() {
     value[vlen] = 0;
 
     paGetToken(value + vlen + 1, &value2, &vlen2);
-    if (vlen2 != 0) value2[vlen2] = 0;
-
-    paGetToken(value + vlen2 + 1, &value3, &vlen3);
-    if (vlen3 != 0) value3[vlen3] = 0;
+    if (vlen2 != 0) {
+      value2[vlen2] = 0;
+      paGetToken(value2 + vlen2 + 1, &value3, &vlen3);
+      if (vlen3 != 0) value3[vlen3] = 0;
+    }
 
     taosReadConfigOption(option, value, value2, value3);
   }