diff --git a/include/common/tep.h b/include/common/tep.h
index 6ca180667b82b919a6eed693c312a0278e2cb4e2..584b8a5a71fb7833ea78c9991933c042099b237f 100644
--- a/include/common/tep.h
+++ b/include/common/tep.h
@@ -23,7 +23,7 @@ typedef struct SBlockOrderInfo {
 //  bool             hasNull;
 } SBlockOrderInfo;
 
-int  taosGetFqdnPortFromEp(const char *ep, uint16_t defaultPort, SEp *pEp);
+int  taosGetFqdnPortFromEp(const char *ep, SEp *pEp);
 void addEpIntoEpSet(SEpSet *pEpSet, const char *fqdn, uint16_t port);
 
 bool isEpsetEqual(const SEpSet *s1, const SEpSet *s2);
diff --git a/include/common/tglobal.h b/include/common/tglobal.h
index e7f39f048d97e41c23894c7cf53aeb752079d2c5..1358bba2e23a52ae63ee1a54abbc6dfcef93e5bd 100644
--- a/include/common/tglobal.h
+++ b/include/common/tglobal.h
@@ -24,9 +24,14 @@ extern "C" {
 #include "tdef.h"
 
 // cluster
-extern int32_t tsVersion;
-extern int32_t tsStatusInterval;
-extern bool    tsEnableTelemetryReporting;
+extern char     tsFirst[];
+extern char     tsSecond[];
+extern char     tsLocalFqdn[];
+extern char     tsLocalEp[];
+extern uint16_t tsServerPort;
+extern int32_t  tsVersion;
+extern int32_t  tsStatusInterval;
+extern bool     tsEnableTelemetryReporting;
 
 // common
 extern int32_t tsRpcTimer;
diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index 9ba2e2faef01de9959111ee178869e8a3bf26b9b..523921634bf548e8c0de1cd22b7ce8a75894f67f 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -253,13 +253,6 @@ int hbAddConnInfo(SAppHbMgr* pAppHbMgr, SClientHbKey connKey, void* key, void* v
 // --- mq
 void hbMgrInitMqHbRspHandle();
 
-
-// config
-int32_t tscInitLog(const char *cfgDir, const char *envFile, const char *apolloUrl);
-int32_t tscInitCfg(const char *cfgDir, const char *envFile, const char *apolloUrl);
-
-extern SConfig *tscCfg;
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/client/src/clientCfg.c b/source/client/src/clientCfg.c
deleted file mode 100644
index fb0b28a3ca181e4b372845ea6ecba80075e64f1d..0000000000000000000000000000000000000000
--- a/source/client/src/clientCfg.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#define _DEFAULT_SOURCE
-#include "clientInt.h"
-#include "ulog.h"
-
-
-int32_t tscCheckCfg(SConfig *pCfg) {
-  bool enableCore = cfgGetItem(pCfg, "enableCoreFile")->bval;
-  taosSetCoreDump(enableCore);
-
-  return 0;
-}
-
-SConfig *tscInitCfgImp(const char *cfgDir, const char *envFile, const char *apolloUrl) {
-  SConfig *pCfg = cfgInit();
-  if (pCfg == NULL) return NULL;
-
-  if (tscAddCfg(pCfg) != 0) {
-    uError("failed to init tsc cfg since %s", terrstr());
-    cfgCleanup(pCfg);
-    return NULL;
-  }
-
-  if (tscLoadCfg(pCfg, cfgDir, envFile, apolloUrl) != 0) {
-    printf("failed to load tsc cfg since %s\n", terrstr());
-    cfgCleanup(pCfg);
-    return NULL;
-  }
-
-  if (tscCheckCfg(pCfg) != 0) {
-    uError("failed to check cfg since %s", terrstr());
-    cfgCleanup(pCfg);
-    return NULL;
-  }
-
-  cfgDumpCfg(pCfg);
-  return pCfg;
-}
-
-int32_t tscInitCfg(const char *cfgDir, const char *envFile, const char *apolloUrl) {
-  tscCfg = tscInitCfgImp(cfgDir, envFile, apolloUrl);
-  if (tscCfg == NULL) return -1;
-
-  return 0;
-}
\ No newline at end of file
diff --git a/source/client/src/clientEnv.c b/source/client/src/clientEnv.c
index c8b0785a3a43ab14387eca524bda947399bc0c7d..7ffb5dcd44c4e624939aec724a75bdeb7de43219 100644
--- a/source/client/src/clientEnv.c
+++ b/source/client/src/clientEnv.c
@@ -93,10 +93,10 @@ void *openTransporter(const char *user, const char *auth, int32_t numOfThread) {
   rpcInit.numOfThreads = numOfThread;
   rpcInit.cfp = processMsgFromServer;
   rpcInit.pfp = persistConnForSpecificMsg;
-  rpcInit.sessions = cfgGetItem(tscCfg, "maxConnections")->i32;
+  rpcInit.sessions = tsMaxConnections;
   rpcInit.connType = TAOS_CONN_CLIENT;
   rpcInit.user = (char *)user;
-  rpcInit.idleTime = cfgGetItem(tscCfg, "shellActivityTimer")->i32 * 1000;
+  rpcInit.idleTime = tsShellActivityTimer * 1000;
   rpcInit.ckey = "key";
   rpcInit.spi = 1;
   rpcInit.secret = (char *)auth;
@@ -212,12 +212,12 @@ void taos_init_imp(void) {
 
   deltaToUtcInitOnce();
 
-  if (tscInitLog(configDir, NULL, NULL) != 0) {
+  if (taosCreateLog("taoslog", 10, configDir, NULL, NULL, 1) != 0) {
     tscInitRes = -1;
     return;
   }
 
-  if (tscInitCfg(configDir, NULL, NULL) != 0) {
+  if (taosInitCfg(configDir, NULL, NULL, 1) != 0) {
     tscInitRes = -1;
     return;
   }
diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index c9b2e371a232d1bdaedf84d9f2a94a838d5f8830..f256feb2510b0a2c08b63afd7477dc9083208662 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -11,7 +11,7 @@
 #include "tpagedbuf.h"
 #include "tref.h"
 
-static int32_t       initEpSetFromCfg(const char* ip, uint16_t port, SCorEpSet* pEpSet);
+static int32_t       initEpSetFromCfg(const char* firstEp, const char* secondEp, SCorEpSet* pEpSet);
 static SMsgSendInfo* buildConnectMsg(SRequestObj* pRequest);
 static void          destroySendMsgInfo(SMsgSendInfo* pMsgBody);
 static void          setQueryResultFromRsp(SReqResultInfo* pResultInfo, const SRetrieveTableRsp* pRsp);
@@ -80,7 +80,19 @@ TAOS* taos_connect_internal(const char* ip, const char* user, const char* pass,
   }
 
   SCorEpSet epSet = {0};
-  initEpSetFromCfg(ip, port, &epSet);
+  if (ip) {
+    if (initEpSetFromCfg(ip, NULL, &epSet) < 0) {
+      return NULL;
+    }
+
+    if (port) {
+      epSet.epSet.eps[0].port = port;
+    }
+  } else {
+    if (initEpSetFromCfg(tsFirst, tsSecond, &epSet) < 0) {
+      return NULL;
+    }
+  }
 
   char*          key = getClusterKey(user, secretEncrypt, ip, port);
   SAppInstInfo** pInst = NULL;
@@ -267,40 +279,32 @@ _return:
   return pRequest;
 }
 
-int initEpSetFromCfg(const char* ip, uint16_t port, SCorEpSet* pEpSet) {
-  SConfigItem* pFirst = cfgGetItem(tscCfg, "firstEp");
-  SConfigItem* pSecond = cfgGetItem(tscCfg, "secondEp");
-  SConfigItem* pPort = cfgGetItem(tscCfg, "serverPort");
+int initEpSetFromCfg(const char* firstEp, const char* secondEp, SCorEpSet* pEpSet) {
+  pEpSet->version = 0;
 
   // init mnode ip set
   SEpSet* mgmtEpSet = &(pEpSet->epSet);
   mgmtEpSet->numOfEps = 0;
   mgmtEpSet->inUse = 0;
-  pEpSet->version = 0;
 
-  if (ip != NULL) {
-    taosGetFqdnPortFromEp(ip, (uint16_t)pPort->i32, &mgmtEpSet->eps[0]);
-    mgmtEpSet->numOfEps++;
-    if (port) {
-      mgmtEpSet->eps[0].port = port;
-    }
-  } else {
-    if (pFirst->str[0] != 0) {
-      if (strlen(pFirst->str) >= TSDB_EP_LEN) {
-        terrno = TSDB_CODE_TSC_INVALID_FQDN;
-        return -1;
-      }
-      taosGetFqdnPortFromEp(pFirst->str, (uint16_t)pPort->i32, &mgmtEpSet->eps[0]);
-      mgmtEpSet->numOfEps++;
+  if (firstEp && firstEp[0] != 0) {
+    if (strlen(firstEp) >= TSDB_EP_LEN) {
+      terrno = TSDB_CODE_TSC_INVALID_FQDN;
+      return -1;
     }
-    if (pSecond->str[0] != 0) {
-      if (strlen(pSecond->str) >= TSDB_EP_LEN) {
-        terrno = TSDB_CODE_TSC_INVALID_FQDN;
-        return -1;
-      }
-      taosGetFqdnPortFromEp(pSecond->str, (uint16_t)pPort->i32, &mgmtEpSet->eps[1]);
-      mgmtEpSet->numOfEps++;
+
+    taosGetFqdnPortFromEp(firstEp, &mgmtEpSet->eps[0]);
+    mgmtEpSet->numOfEps++;
+  }
+
+  if (secondEp && secondEp[0] != 0) {
+    if (strlen(secondEp) >= TSDB_EP_LEN) {
+      terrno = TSDB_CODE_TSC_INVALID_FQDN;
+      return -1;
     }
+
+    taosGetFqdnPortFromEp(secondEp, &mgmtEpSet->eps[mgmtEpSet->numOfEps]);
+    mgmtEpSet->numOfEps++;
   }
 
   if (mgmtEpSet->numOfEps == 0) {
diff --git a/source/common/src/tep.c b/source/common/src/tep.c
index 3e98cae27923d7c845503e35f8fd0846440fd38e..970b6d954f1faa4f1f439f1f415e0d7059852311 100644
--- a/source/common/src/tep.c
+++ b/source/common/src/tep.c
@@ -4,7 +4,7 @@
 #include "tglobal.h"
 #include "tlockfree.h"
 
-int taosGetFqdnPortFromEp(const char *ep, uint16_t defaultPort, SEp* pEp) {
+int taosGetFqdnPortFromEp(const char *ep, SEp* pEp) {
   pEp->port = 0;
   strcpy(pEp->fqdn, ep);
 
@@ -15,7 +15,7 @@ int taosGetFqdnPortFromEp(const char *ep, uint16_t defaultPort, SEp* pEp) {
   }
 
   if (pEp->port == 0) {
-    pEp->port = defaultPort;
+    pEp->port = tsServerPort;
     return -1;
   }
 
diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index 66ed0cf8870531d9bdbd817083edc80c67d7a0c4..5200474cbd70a2d9d561e1f9852b665e5c791169 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -29,9 +29,14 @@
 SConfig *tsCfg = NULL;
 
 // cluster
-int32_t tsVersion = 30000000;
-int32_t tsStatusInterval = 1;  // second
-bool    tsEnableTelemetryReporting = 0;
+char     tsFirst[TSDB_EP_LEN] = {0};
+char     tsSecond[TSDB_EP_LEN] = {0};
+char     tsLocalFqdn[TSDB_FQDN_LEN] = {0};
+char     tsLocalEp[TSDB_EP_LEN] = {0};  // Local End Point, hostname:port
+uint16_t tsServerPort = 6030;
+int32_t  tsVersion = 30000000;
+int32_t  tsStatusInterval = 1;  // second
+bool     tsEnableTelemetryReporting = 0;
 
 // common
 int32_t tsRpcTimer = 300;
@@ -321,11 +326,19 @@ static void taosSetServerLogCfg(SConfig *pCfg) {
 static void taosSetClientCfg(SConfig *pCfg) {
   osSetTempDir(cfgGetItem(pCfg, "tempDir")->str);
   osSetDataReservedSpace(cfgGetItem(pCfg, "minimalTempDirGB")->fval);
+  tstrncpy(tsFirst, cfgGetItem(pCfg, "firstEp")->str, TSDB_EP_LEN);
+  tstrncpy(tsSecond, cfgGetItem(pCfg, "secondEp")->str, TSDB_EP_LEN);
+  tstrncpy(tsLocalFqdn, cfgGetItem(pCfg, "fqdn")->str, TSDB_EP_LEN);
+  tsServerPort = (uint16_t)cfgGetItem(pCfg, "serverPort")->i32;
+  snprintf(tsLocalEp, sizeof(tsLocalEp), "%s:%u", tsLocalFqdn, tsServerPort);
 
   taosGetSystemInfo();
   if (tsNumOfCores <= 0) {
     tsNumOfCores = 1;
   }
+
+  bool enableCore = cfgGetItem(pCfg, "enableCoreFile")->bval;
+  taosSetCoreDump(enableCore);
 }
 
 static void taosSetServerCfg(SConfig *pCfg) {
diff --git a/source/dnode/mgmt/daemon/src/dmnLog.c b/source/dnode/mgmt/daemon/src/dmnLog.c
deleted file mode 100644
index bd4a283ada5844ef2d147289798168d37174a904..0000000000000000000000000000000000000000
--- a/source/dnode/mgmt/daemon/src/dmnLog.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#define _DEFAULT_SOURCE
-#include "dmnInt.h"
-
-int32_t dmnAddLogCfg(SConfig *pCfg) {
-  if (cfgAddDir(pCfg, "logDir", osLogDir()) != 0) return -1;
-  if (cfgAddFloat(pCfg, "minimalLogDirGB", 1.0f, 0.001f, 10000000) != 0) return -1;
-  if (cfgAddBool(pCfg, "asyncLog", 1) != 0) return -1;
-  if (cfgAddInt32(pCfg, "numOfLogLines", 10000000, 1000, 2000000000) != 0) return -1;
-  if (cfgAddInt32(pCfg, "logKeepDays", 0, -365000, 365000) != 0) return -1;
-  if (cfgAddInt32(pCfg, "debugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "dDebugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "vDebugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "mDebugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "cDebugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "jniDebugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "tmrDebugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "uDebugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "rpcDebugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "qDebugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "wDebugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "sDebugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "tsdbDebugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "tqDebugFlag", 0, 0, 255) != 0) return -1;
-  if (cfgAddInt32(pCfg, "fsDebugFlag", 0, 0, 255) != 0) return -1;
-  return 0;
-}
-
-int32_t dmnSetLogCfg(SConfig *pCfg) {
-  osSetLogDir(cfgGetItem(pCfg, "logDir")->str);
-  osSetLogReservedSpace(cfgGetItem(pCfg, "minimalLogDirGB")->fval);
-  tsAsyncLog = cfgGetItem(pCfg, "asyncLog")->bval;
-  tsNumOfLogLines = cfgGetItem(pCfg, "numOfLogLines")->i32;
-  tsLogKeepDays = cfgGetItem(pCfg, "logKeepDays")->i32;
-  cDebugFlag = cfgGetItem(pCfg, "cDebugFlag")->i32;
-  jniDebugFlag = cfgGetItem(pCfg, "jniDebugFlag")->i32;
-  tmrDebugFlag = cfgGetItem(pCfg, "tmrDebugFlag")->i32;
-  uDebugFlag = cfgGetItem(pCfg, "uDebugFlag")->i32;
-  rpcDebugFlag = cfgGetItem(pCfg, "rpcDebugFlag")->i32;
-  qDebugFlag = cfgGetItem(pCfg, "qDebugFlag")->i32;
-  wDebugFlag = cfgGetItem(pCfg, "wDebugFlag")->i32;
-  sDebugFlag = cfgGetItem(pCfg, "sDebugFlag")->i32;
-  tsdbDebugFlag = cfgGetItem(pCfg, "tsdbDebugFlag")->i32;
-  tqDebugFlag = cfgGetItem(pCfg, "tqDebugFlag")->i32;
-  fsDebugFlag = cfgGetItem(pCfg, "fsDebugFlag")->i32;
-
-  int32_t debugFlag = cfgGetItem(pCfg, "debugFlag")->i32;
-  taosSetAllDebugFlag(debugFlag);
-
-  return 0;
-}
-
-int32_t dmnInitLog(const char *cfgDir, const char *envFile, const char *apolloUrl) {
-  SConfig *pCfg = cfgInit();
-  if (pCfg == NULL) return -1;
-
-  if (dmnAddLogCfg(pCfg) != 0) {
-    printf("failed to add log cfg since %s\n", terrstr());
-    cfgCleanup(pCfg);
-    return -1;
-  }
-
-  if (dmnLoadCfg(pCfg, cfgDir, envFile, apolloUrl) != 0) {
-    printf("failed to load log cfg since %s\n", terrstr());
-    cfgCleanup(pCfg);
-    return -1;
-  }
-
-  if (dmnSetLogCfg(pCfg) != 0) {
-    printf("failed to set log cfg since %s\n", terrstr());
-    cfgCleanup(pCfg);
-    return -1;
-  }
-
-  if (taosInitLog("taosdlog", 1) != 0) {
-    printf("failed to init log file since %s\n", terrstr());
-    cfgCleanup(pCfg);
-    return -1;
-  }
-
-  cfgCleanup(pCfg);
-  return 0;
-}
-
-int32_t dmnLoadCfg(SConfig *pConfig, const char *inputCfgDir, const char *envFile, const char *apolloUrl) {
-  char configDir[PATH_MAX] = {0};
-  char configFile[PATH_MAX + 100] = {0};
-
-  taosExpandDir(inputCfgDir, configDir, PATH_MAX);
-  snprintf(configFile, sizeof(configFile), "%s" TD_DIRSEP "taos.cfg", configDir);
-
-  if (cfgLoad(pConfig, CFG_STYPE_APOLLO_URL, apolloUrl) != 0) {
-    uError("failed to load from apollo url:%s since %s\n", apolloUrl, terrstr());
-    return -1;
-  }
-
-  if (cfgLoad(pConfig, CFG_STYPE_CFG_FILE, configFile) != 0) {
-    if (cfgLoad(pConfig, CFG_STYPE_CFG_FILE, configDir) != 0) {
-      uError("failed to load from config file:%s since %s\n", configFile, terrstr());
-      return -1;
-    }
-  }
-
-  if (cfgLoad(pConfig, CFG_STYPE_ENV_FILE, envFile) != 0) {
-    uError("failed to load from env file:%s since %s\n", envFile, terrstr());
-    return -1;
-  }
-
-  if (cfgLoad(pConfig, CFG_STYPE_ENV_VAR, NULL) != 0) {
-    uError("failed to load from global env variables since %s\n", terrstr());
-    return -1;
-  }
-
-  return 0;
-}
diff --git a/source/dnode/mgmt/impl/src/dndMgmt.c b/source/dnode/mgmt/impl/src/dndMgmt.c
index 9c08cd64cf072f3d03de1610ef78616d123d116f..421a6e659faa50980a7238de0d25b67d77fd0e8b 100644
--- a/source/dnode/mgmt/impl/src/dndMgmt.c
+++ b/source/dnode/mgmt/impl/src/dndMgmt.c
@@ -296,7 +296,7 @@ PRASE_DNODE_OVER:
   if (taosArrayGetSize(pMgmt->pDnodeEps) == 0) {
     SDnodeEp dnodeEp = {0};
     dnodeEp.isMnode = 1;
-    taosGetFqdnPortFromEp(pDnode->cfg.firstEp, pDnode->cfg.serverPort, &dnodeEp.ep);
+    taosGetFqdnPortFromEp(pDnode->cfg.firstEp, &dnodeEp.ep);
     taosArrayPush(pMgmt->pDnodeEps, &dnodeEp);
   }
 
diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index cc05d433eb013b32abaed70290fbdeb0b7208584..8200ab049c7819a060e139b8f76aa5aaca564084 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -132,8 +132,7 @@ do {                                       \
 } while (0)
 
 int32_t getMaximumIdleDurationSec() {
-  // todo
-  return 6; //tsShellActivityTimer * 2;
+  return tsShellActivityTimer * 2;
 }
 
 static int32_t getExprFunctionId(SExprInfo *pExprInfo) {
@@ -5302,12 +5301,10 @@ SOperatorInfo* createExchangeOperatorInfo(const SArray* pSources, const SArray*
     rpcInit.label = "EX";
     rpcInit.numOfThreads = 1;
     rpcInit.cfp = qProcessFetchRsp;
-    // todo
-    rpcInit.sessions = 50000; //tsMaxConnections;
+    rpcInit.sessions = tsMaxConnections;
     rpcInit.connType = TAOS_CONN_CLIENT;
     rpcInit.user = (char *)"root";
-    // todo 
-    rpcInit.idleTime = 6; //tsShellActivityTimer * 1000;
+    rpcInit.idleTime = tsShellActivityTimer * 1000;
     rpcInit.ckey = "key";
     rpcInit.spi = 1;
     rpcInit.secret = (char *)"dcc5bed04851fec854c035b2e40263b6";
diff --git a/source/libs/qcom/src/queryUtil.c b/source/libs/qcom/src/queryUtil.c
index b29817a3187e83c545140f44bf06f988d8b8b1a4..a2165453d55820078292eedb7085f7877f459092 100644
--- a/source/libs/qcom/src/queryUtil.c
+++ b/source/libs/qcom/src/queryUtil.c
@@ -85,11 +85,10 @@ static void* pTaskQueue = NULL;
 
 int32_t initTaskQueue() {
   double factor = 4.0;
-  // todo
-  // int32_t numOfThreads = TMAX((int)(tsNumOfCores * tsNumOfThreadsPerCore / factor), 2);
-  int32_t numOfThreads = TMAX((int)(tsNumOfCores * 1.0f / factor), 2);
 
-  int32_t queueSize = 25000; //tsMaxConnections * 2;
+  int32_t numOfThreads = TMAX((int)(tsNumOfCores * tsNumOfThreadsPerCore / factor), 2);
+  
+  int32_t queueSize = tsMaxConnections * 2;
   pTaskQueue = taosInitScheduler(queueSize, numOfThreads, "tsc");
   if (NULL == pTaskQueue) {
     qError("failed to init task queue");