diff --git a/include/util/tconfig.h b/include/util/tconfig.h
index 64a1a408279d7abf86bfb31ef8aa82d4f922aad4..8275054a64f188c6f30a70a481f9ff9f9ab95d2b 100644
--- a/include/util/tconfig.h
+++ b/include/util/tconfig.h
@@ -75,7 +75,10 @@ typedef struct {
   const char *value;
 } SConfigPair;
 
-typedef struct SConfig SConfig;
+typedef struct SConfig {
+  ECfgSrcType stype;
+  SArray     *array;
+} SConfig;
 
 SConfig *cfgInit();
 int32_t  cfgLoad(SConfig *pCfg, ECfgSrcType cfgType, const char *sourceStr);
@@ -83,8 +86,6 @@ int32_t  cfgLoadArray(SConfig *pCfg, SArray *pArgs);  // SConfigPair
 void     cfgCleanup(SConfig *pCfg);
 
 int32_t      cfgGetSize(SConfig *pCfg);
-SConfigItem *cfgIterate(SConfig *pCfg, SConfigItem *pIter);
-void         cfgCancelIterate(SConfig *pCfg, SConfigItem *pIter);
 SConfigItem *cfgGetItem(SConfig *pCfg, const char *name);
 int32_t      cfgSetItem(SConfig *pCfg, const char *name, const char *value, ECfgSrcType stype);
 
diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index 6d0dd3f00d9ff69d8a95ca3b8ca527ce51df7278..38685855df2f3dd5aed31ba862dd646aa2b941cb 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -207,6 +207,8 @@ static int32_t taosLoadCfg(SConfig *pCfg, const char *inputCfgDir, const char *e
 }
 
 static int32_t taosAddClientLogCfg(SConfig *pCfg) {
+  if (cfgAddDir(pCfg, "configDir", configDir, 1) != 0) return -1;
+  if (cfgAddDir(pCfg, "scriptDir", configDir, 1) != 0) return -1;
   if (cfgAddDir(pCfg, "logDir", tsLogDir, 1) != 0) return -1;
   if (cfgAddFloat(pCfg, "minimalLogDirGB", 1.0f, 0.001f, 10000000, 1) != 0) return -1;
   if (cfgAddInt32(pCfg, "numOfLogLines", tsNumOfLogLines, 1000, 2000000000, 1) != 0) return -1;
@@ -218,8 +220,6 @@ static int32_t taosAddClientLogCfg(SConfig *pCfg) {
   if (cfgAddInt32(pCfg, "tmrDebugFlag", tmrDebugFlag, 0, 255, 1) != 0) return -1;
   if (cfgAddInt32(pCfg, "jniDebugFlag", jniDebugFlag, 0, 255, 1) != 0) return -1;
   if (cfgAddInt32(pCfg, "simDebugFlag", 143, 0, 255, 1) != 0) return -1;
-  if (cfgAddDir(pCfg, "configDir", configDir, 1) != 0) return -1;
-  if (cfgAddDir(pCfg, "scriptDir", configDir, 1) != 0) return -1;
   if (cfgAddInt32(pCfg, "debugFlag", 0, 0, 255, 1) != 0) return -1;
   return 0;
 }
@@ -488,10 +488,10 @@ int32_t taosInitCfg(const char *cfgDir, const char *envFile, const char *apolloU
     if (taosAddClientLogCfg(tsCfg) != 0) return -1;
     if (taosAddClientCfg(tsCfg) != 0) return -1;
   } else {
-    if (taosAddClientLogCfg(tsCfg) != 0) return -1;
-    if (taosAddServerLogCfg(tsCfg) != 0) return -1;
     if (taosAddClientCfg(tsCfg) != 0) return -1;
     if (taosAddServerCfg(tsCfg) != 0) return -1;
+    if (taosAddClientLogCfg(tsCfg) != 0) return -1;
+    if (taosAddServerLogCfg(tsCfg) != 0) return -1;
   }
   taosAddSystemCfg(tsCfg);
 
diff --git a/source/util/src/tconfig.c b/source/util/src/tconfig.c
index 98e5bf1346b38ca8cd8c3e1504c8832cb04e82af..b495e1ade187f20ecc33964492bdb4f04e9d7381 100644
--- a/source/util/src/tconfig.c
+++ b/source/util/src/tconfig.c
@@ -16,18 +16,12 @@
 #define _DEFAULT_SOURCE
 #include "tconfig.h"
 #include "taoserror.h"
-#include "thash.h"
 #include "tlog.h"
 #include "tutil.h"
 
 #define CFG_NAME_PRINT_LEN 24
 #define CFG_SRC_PRINT_LEN  12
 
-typedef struct SConfig {
-  ECfgSrcType stype;
-  SHashObj   *hash;
-} SConfig;
-
 int32_t cfgLoadFromCfgFile(SConfig *pConfig, const char *filepath);
 int32_t cfgLoadFromEnvFile(SConfig *pConfig, const char *filepath);
 int32_t cfgLoadFromEnvVar(SConfig *pConfig);
@@ -41,8 +35,8 @@ SConfig *cfgInit() {
     return NULL;
   }
 
-  pCfg->hash = taosHashInit(16, MurmurHash3_32, false, HASH_NO_LOCK);
-  if (pCfg->hash == NULL) {
+  pCfg->array = taosArrayInit(32, sizeof(SConfigItem));
+  if (pCfg->array == NULL) {
     free(pCfg);
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     return NULL;
@@ -91,25 +85,18 @@ static void cfgFreeItem(SConfigItem *pItem) {
 
 void cfgCleanup(SConfig *pCfg) {
   if (pCfg != NULL) {
-    if (pCfg->hash != NULL) {
-      SConfigItem *pItem = taosHashIterate(pCfg->hash, NULL);
-      while (pItem != NULL) {
-        cfgFreeItem(pItem);
-        tfree(pItem->name);
-        pItem = taosHashIterate(pCfg->hash, pItem);
-      }
-      taosHashCleanup(pCfg->hash);
-      pCfg->hash == NULL;
+    int32_t size = taosArrayGetSize(pCfg->array);
+    for (int32_t i = 0; i < size; ++i) {
+      SConfigItem *pItem = taosArrayGet(pCfg->array, i);
+      cfgFreeItem(pItem);
+      tfree(pItem->name);
     }
+    taosArrayDestroy(pCfg->array);
     free(pCfg);
   }
 }
 
-int32_t cfgGetSize(SConfig *pCfg) { return taosHashGetSize(pCfg->hash); }
-
-SConfigItem *cfgIterate(SConfig *pCfg, SConfigItem *pIter) { return taosHashIterate(pCfg->hash, pIter); }
-
-void cfgCancelIterate(SConfig *pCfg, SConfigItem *pIter) { return taosHashCancelIterate(pCfg->hash, pIter); }
+int32_t cfgGetSize(SConfig *pCfg) { return taosArrayGetSize(pCfg->array); }
 
 static int32_t cfgCheckAndSetTimezone(SConfigItem *pItem, const char *timezone) {
   cfgFreeItem(pItem);
@@ -358,16 +345,16 @@ int32_t cfgSetItem(SConfig *pCfg, const char *name, const char *value, ECfgSrcTy
 }
 
 SConfigItem *cfgGetItem(SConfig *pCfg, const char *name) {
-  int32_t len = strlen(name);
-  char    lowcaseName[CFG_NAME_MAX_LEN + 1] = {0};
-  strntolower(lowcaseName, name, TMIN(CFG_NAME_MAX_LEN, len));
-
-  SConfigItem *pItem = taosHashGet(pCfg->hash, lowcaseName, len + 1);
-  if (pItem == NULL) {
-    terrno = TSDB_CODE_CFG_NOT_FOUND;
+  int32_t size = taosArrayGetSize(pCfg->array);
+  for (int32_t i = 0; i < size; ++i) {
+    SConfigItem *pItem = taosArrayGet(pCfg->array, i);
+    if (strcasecmp(pItem->name, name) == 0) {
+      return pItem;
+    }
   }
 
-  return pItem;
+  terrno = TSDB_CODE_CFG_NOT_FOUND;
+  return NULL;
 }
 
 static int32_t cfgAddItem(SConfig *pCfg, SConfigItem *pItem, const char *name) {
@@ -382,7 +369,7 @@ static int32_t cfgAddItem(SConfig *pCfg, SConfigItem *pItem, const char *name) {
   char    lowcaseName[CFG_NAME_MAX_LEN + 1] = {0};
   strntolower(lowcaseName, name, TMIN(CFG_NAME_MAX_LEN, len));
 
-  if (taosHashPut(pCfg->hash, lowcaseName, len + 1, pItem, sizeof(SConfigItem)) != 0) {
+  if (taosArrayPush(pCfg->array, pItem) == NULL) {
     if (pItem->dtype == CFG_DTYPE_STRING) {
       free(pItem->str);
     }
@@ -535,8 +522,9 @@ void cfgDumpCfg(SConfig *pCfg, bool tsc, bool dump) {
   char src[CFG_SRC_PRINT_LEN + 1] = {0};
   char name[CFG_NAME_PRINT_LEN + 1] = {0};
 
-  SConfigItem *pItem = cfgIterate(pCfg, NULL);
-  while (pItem != NULL) {
+  int32_t size = taosArrayGetSize(pCfg->array);
+  for (int32_t i = 0; i < size; ++i) {
+    SConfigItem *pItem = taosArrayGet(pCfg->array, i);
     if (tsc && !pItem->tsc) continue;
     tstrncpy(src, cfgStypeStr(pItem->stype), CFG_SRC_PRINT_LEN);
     for (int32_t i = 0; i < CFG_SRC_PRINT_LEN; ++i) {
@@ -595,7 +583,6 @@ void cfgDumpCfg(SConfig *pCfg, bool tsc, bool dump) {
         }
         break;
     }
-    pItem = cfgIterate(pCfg, pItem);
   }
 
   if (dump) {
diff --git a/source/util/test/cfgTest.cpp b/source/util/test/cfgTest.cpp
index 800e261dcb308a09c45a0c8802b227446a94b7d0..818d2ada9ac3b6aac2fe4db137fa997c6639e8fd 100644
--- a/source/util/test/cfgTest.cpp
+++ b/source/util/test/cfgTest.cpp
@@ -62,9 +62,9 @@ TEST_F(CfgTest, 02_Basic) {
 
   EXPECT_EQ(cfgGetSize(pConfig), 6);
 
-  int32_t      size = 0;
-  SConfigItem *pItem = cfgIterate(pConfig, NULL);
-  while (pItem != NULL) {
+  int32_t size = taosArrayGetSize(pConfig->array);
+  for (int32_t i = 0; i < size; ++i) {
+    SConfigItem *pItem = (SConfigItem *)taosArrayGet(pConfig->array, i);
     switch (pItem->dtype) {
       case CFG_DTYPE_BOOL:
         printf("index:%d, cfg:%s value:%d\n", size, pItem->name, pItem->bval);
@@ -89,13 +89,10 @@ TEST_F(CfgTest, 02_Basic) {
         break;
     }
     size++;
-    pItem = cfgIterate(pConfig, pItem);
   }
-  cfgCancelIterate(pConfig, pItem);
-
   EXPECT_EQ(cfgGetSize(pConfig), 6);
 
-  pItem = cfgGetItem(pConfig, "test_bool");
+  SConfigItem *pItem = cfgGetItem(pConfig, "test_bool");
   EXPECT_EQ(pItem->stype, CFG_STYPE_DEFAULT);
   EXPECT_EQ(pItem->dtype, CFG_DTYPE_BOOL);
   EXPECT_STREQ(pItem->name, "test_bool");