diff --git a/src/client/src/tscSubquery.c b/src/client/src/tscSubquery.c
index 880e475498d0ff5908f1ca0b6922c7597d72642f..cf9670d3d254f8056cd8c4ab3cb6de24e8db5780 100644
--- a/src/client/src/tscSubquery.c
+++ b/src/client/src/tscSubquery.c
@@ -1778,7 +1778,6 @@ static SSqlObj *tscCreateSqlObjForSubquery(SSqlObj *pSql, SRetrieveSupport *trsu
     pSql->pSubs[trsupport->subqueryIndex] = pNew;
   }
   
-  printf("------------alloc:%p\n", pNew);
   return pNew;
 }
 
diff --git a/src/common/inc/tglobal.h b/src/common/inc/tglobal.h
index da42c064ec9a34c7ffb30299e879a55024bcec39..fbdfc84f5ffc26815c8318ff93f494af7801b6d9 100644
--- a/src/common/inc/tglobal.h
+++ b/src/common/inc/tglobal.h
@@ -69,6 +69,7 @@ extern int64_t tsMaxRetentWindow;
 extern int32_t tsCacheBlockSize;
 extern int32_t tsBlocksPerVnode;
 extern int32_t tsMaxTablePerVnode;
+extern int32_t tsMaxVgroupsPerDb;
 extern int16_t tsDaysPerFile;
 extern int32_t tsDaysToKeep;
 extern int32_t tsMinRowsInFileBlock;
diff --git a/src/common/src/tglobal.c b/src/common/src/tglobal.c
index 3aa30074c55f450ee69fc9b4f3561fa384e7367d..40c1ee4280e68098f51140b61798fd931a770857 100644
--- a/src/common/src/tglobal.c
+++ b/src/common/src/tglobal.c
@@ -111,13 +111,8 @@ int32_t tsTimePrecision = TSDB_DEFAULT_PRECISION;
 int16_t tsCompression   = TSDB_DEFAULT_COMP_LEVEL;
 int16_t tsWAL           = TSDB_DEFAULT_WAL_LEVEL;
 int32_t tsReplications  = TSDB_DEFAULT_REPLICA_NUM;
-
-#ifdef _TD_ARM_32_
-  int32_t tsMaxTablePerVnode = 100;
-#else
-  int32_t tsMaxTablePerVnode = TSDB_DEFAULT_TABLES;
-#endif
-
+int32_t tsMaxVgroupsPerDb  = 0;
+int32_t tsMaxTablePerVnode = TSDB_DEFAULT_TABLES;
 // balance
 int32_t tsEnableBalance = 1;
 int32_t tsAlternativeRole = 0;
@@ -606,8 +601,18 @@ static void doInitGlobalConfig() {
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);
 
+  cfg.option = "maxVgroupsPerDb";
+  cfg.ptr = &tsMaxVgroupsPerDb;
+  cfg.valType = TAOS_CFG_VTYPE_INT32;
+  cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG | TSDB_CFG_CTYPE_B_SHOW;
+  cfg.minValue = 0;
+  cfg.maxValue = 8192;
+  cfg.ptrLength = 0;
+  cfg.unitType = TAOS_CFG_UTYPE_NONE;
+  taosInitConfigOption(cfg);
+
   // database configs
-  cfg.option = "maxtablesPerVnode";
+  cfg.option = "maxTablesPerVnode";
   cfg.ptr = &tsMaxTablePerVnode;
   cfg.valType = TAOS_CFG_VTYPE_INT32;
   cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG | TSDB_CFG_CTYPE_B_SHOW;
diff --git a/src/dnode/src/dnodeMgmt.c b/src/dnode/src/dnodeMgmt.c
index b1c93d7195be386a478e48af8bcd9bc7d85b0628..d0c42c4412f8430856fb044b662ac930f8be8bd1 100644
--- a/src/dnode/src/dnodeMgmt.c
+++ b/src/dnode/src/dnodeMgmt.c
@@ -698,10 +698,12 @@ static void dnodeSendStatusMsg(void *handle, void *tmrId) {
   pStatus->alternativeRole  = (uint8_t) tsAlternativeRole;
 
   // fill cluster cfg parameters
-  pStatus->clusterCfg.numOfMnodes        = tsNumOfMnodes;
-  pStatus->clusterCfg.mnodeEqualVnodeNum = tsMnodeEqualVnodeNum;
-  pStatus->clusterCfg.offlineThreshold   = tsOfflineThreshold;
-  pStatus->clusterCfg.statusInterval     = tsStatusInterval;
+  pStatus->clusterCfg.numOfMnodes        = htonl(tsNumOfMnodes);
+  pStatus->clusterCfg.mnodeEqualVnodeNum = htonl(tsMnodeEqualVnodeNum);
+  pStatus->clusterCfg.offlineThreshold   = htonl(tsOfflineThreshold);
+  pStatus->clusterCfg.statusInterval     = htonl(tsStatusInterval);
+  pStatus->clusterCfg.maxtablesPerVnode  = htonl(tsMaxTablePerVnode);
+  pStatus->clusterCfg.maxVgroupsPerDb    = htonl(tsMaxVgroupsPerDb);
   strcpy(pStatus->clusterCfg.arbitrator, tsArbitrator);
   strcpy(pStatus->clusterCfg.timezone, tsTimezone);
   strcpy(pStatus->clusterCfg.locale, tsLocale);
diff --git a/src/inc/taosdef.h b/src/inc/taosdef.h
index ac5b92b4abb25d37af1fac7ecb47855a50fe80e4..8e4d8c4253fec81b8bc9b2c5ec83f10f799b7dcc 100644
--- a/src/inc/taosdef.h
+++ b/src/inc/taosdef.h
@@ -296,8 +296,9 @@ void tsDataSwap(void *pLeft, void *pRight, int32_t type, int32_t size);
 #define TSDB_DEFAULT_TOTAL_BLOCKS       4
 
 #define TSDB_MIN_TABLES                 4
-#define TSDB_MAX_TABLES                 200000
-#define TSDB_DEFAULT_TABLES             1000
+#define TSDB_MAX_TABLES                 5000000
+#define TSDB_DEFAULT_TABLES             200000
+#define TSDB_TABLES_STEP                10000
 
 #define TSDB_MIN_DAYS_PER_FILE          1
 #define TSDB_MAX_DAYS_PER_FILE          3650 
diff --git a/src/inc/taosmsg.h b/src/inc/taosmsg.h
index ac89d1dabb44705711bdc4e2468e4d0ec330aa54..f05392b10a67046e97b67c7e548290455e6d428f 100644
--- a/src/inc/taosmsg.h
+++ b/src/inc/taosmsg.h
@@ -569,6 +569,8 @@ typedef struct {
   char     timezone[64];              // tsTimezone
   char     locale[TSDB_LOCALE_LEN];   // tsLocale
   char     charset[TSDB_LOCALE_LEN];  // tsCharset
+  int32_t  maxtablesPerVnode;
+  int32_t  maxVgroupsPerDb;
 } SClusterCfg;
 
 typedef struct {
diff --git a/src/mnode/inc/mnodeDb.h b/src/mnode/inc/mnodeDb.h
index c8557af1667016c9f5bc455175a195651fd77532..ca6c2a86a255b93a7d7af55d3bf01f126a6bc6ba 100644
--- a/src/mnode/inc/mnodeDb.h
+++ b/src/mnode/inc/mnodeDb.h
@@ -44,10 +44,7 @@ void mnodeRemoveSuperTableFromDb(SDbObj *pDb);
 void mnodeAddTableIntoDb(SDbObj *pDb);
 void mnodeRemoveTableFromDb(SDbObj *pDb);
 void mnodeAddVgroupIntoDb(SVgObj *pVgroup);
-void mnodeAddVgroupIntoDbTail(SVgObj *pVgroup);
 void mnodeRemoveVgroupFromDb(SVgObj *pVgroup);
-void mnodeMoveVgroupToTail(SVgObj *pVgroup);
-void mnodeMoveVgroupToHead(SVgObj *pVgroup);
 
 #ifdef __cplusplus
 }
diff --git a/src/mnode/inc/mnodeDef.h b/src/mnode/inc/mnodeDef.h
index b40080759f4167f634bff29480b6acb46e685e1f..90c2ff9e66d01a7fc89f4a1d8861025bc7668e7b 100644
--- a/src/mnode/inc/mnodeDef.h
+++ b/src/mnode/inc/mnodeDef.h
@@ -145,10 +145,8 @@ typedef struct SVgObj {
   int64_t        totalStorage;
   int64_t        compStorage;
   int64_t        pointsWritten;
-  struct SVgObj *prev, *next;
   struct SDbObj *pDb;
   void *         idPool;
-  SChildTableObj **tableList;
 } SVgObj;
 
 typedef struct {
@@ -183,9 +181,11 @@ typedef struct SDbObj {
   int32_t numOfVgroups;
   int32_t numOfTables;
   int32_t numOfSuperTables;
-  SVgObj *pHead;
-  SVgObj *pTail;
+  int32_t vgListSize; 
+  int32_t vgListIndex;
+  SVgObj **vgList;
   struct SAcctObj *pAcct;
+  pthread_mutex_t  mutex;
 } SDbObj;
 
 typedef struct SUserObj {
@@ -246,7 +246,8 @@ typedef struct {
   int16_t  offset[TSDB_MAX_COLUMNS];
   int16_t  bytes[TSDB_MAX_COLUMNS];
   int32_t  numOfReads;
-  int8_t   reserved0[2];
+  int8_t   maxReplica;
+  int8_t   reserved0[0];
   uint16_t payloadLen;
   char     payload[];
 } SShowObj;
diff --git a/src/mnode/inc/mnodeDnode.h b/src/mnode/inc/mnodeDnode.h
index 9e21f8f56ae5942382a162a9a2c9a4eac12f5908..f37178652472940f047e1444999f9643f7ab7311 100644
--- a/src/mnode/inc/mnodeDnode.h
+++ b/src/mnode/inc/mnodeDnode.h
@@ -40,6 +40,7 @@ char*   mnodeGetDnodeStatusStr(int32_t dnodeStatus);
 void    mgmtMonitorDnodeModule();
 
 int32_t mnodeGetDnodesNum();
+int32_t mnodeGetOnlinDnodesCpuCoreNum();
 int32_t mnodeGetOnlinDnodesNum();
 void *  mnodeGetNextDnode(void *pIter, SDnodeObj **pDnode);
 void    mnodeIncDnodeRef(SDnodeObj *pDnode);
diff --git a/src/mnode/inc/mnodeVgroup.h b/src/mnode/inc/mnodeVgroup.h
index 29a0fe1799a0f31e4697ecc2bde57e8dcd230a13..6ddf8e44b9e7ccc17254ef872457def94f331173 100644
--- a/src/mnode/inc/mnodeVgroup.h
+++ b/src/mnode/inc/mnodeVgroup.h
@@ -30,17 +30,17 @@ void    mnodeDecVgroupRef(SVgObj *pVgroup);
 void    mnodeDropAllDbVgroups(SDbObj *pDropDb);
 void    mnodeSendDropAllDbVgroupsMsg(SDbObj *pDropDb);
 void    mnodeDropAllDnodeVgroups(SDnodeObj *pDropDnode);
-void    mnodeUpdateAllDbVgroups(SDbObj *pAlterDb);
+//void  mnodeUpdateAllDbVgroups(SDbObj *pAlterDb);
 
 void *  mnodeGetNextVgroup(void *pIter, SVgObj **pVgroup);
 void    mnodeUpdateVgroup(SVgObj *pVgroup);
 void    mnodeUpdateVgroupStatus(SVgObj *pVgroup, SDnodeObj *pDnode, SVnodeLoad *pVload);
 void    mnodeCheckUnCreatedVgroup(SDnodeObj *pDnode, SVnodeLoad *pVloads, int32_t openVnodes);
 
-int32_t mnodeCreateVgroup(struct SMnodeMsg *pMsg, SDbObj *pDb);
+int32_t mnodeCreateVgroup(struct SMnodeMsg *pMsg);
 void    mnodeDropVgroup(SVgObj *pVgroup, void *ahandle);
 void    mnodeAlterVgroup(SVgObj *pVgroup, void *ahandle);
-SVgObj *mnodeGetAvailableVgroup(SDbObj *pDb);
+int32_t mnodeGetAvailableVgroup(struct SMnodeMsg *pMsg, SVgObj **pVgroup, int32_t *sid);
 
 void    mnodeAddTableIntoVgroup(SVgObj *pVgroup, SChildTableObj *pTable);
 void    mnodeRemoveTableFromVgroup(SVgObj *pVgroup, SChildTableObj *pTable);
diff --git a/src/mnode/src/mnodeDb.c b/src/mnode/src/mnodeDb.c
index 8c74c9413d9eb07dcf4420c6c9e223ffd28a6247..497d64eabf82f8b10a87e97809d84ab0158eda19 100644
--- a/src/mnode/src/mnodeDb.c
+++ b/src/mnode/src/mnodeDb.c
@@ -38,6 +38,7 @@
 #include "mnodeUser.h"
 #include "mnodeVgroup.h"
 
+#define VG_LIST_SIZE 8
 static void *  tsDbSdb = NULL;
 static int32_t tsDbUpdateSize;
 
@@ -50,8 +51,14 @@ static int32_t mnodeProcessCreateDbMsg(SMnodeMsg *pMsg);
 static int32_t mnodeProcessAlterDbMsg(SMnodeMsg *pMsg);
 static int32_t mnodeProcessDropDbMsg(SMnodeMsg *pMsg);
 
+static void mnodeDestroyDb(SDbObj *pDb) {
+  pthread_mutex_destroy(&pDb->mutex);
+  tfree(pDb->vgList);
+  tfree(pDb);
+}
+
 static int32_t mnodeDbActionDestroy(SSdbOper *pOper) {
-  tfree(pOper->pObj);
+  mnodeDestroyDb(pOper->pObj);
   return TSDB_CODE_SUCCESS;
 }
 
@@ -59,8 +66,9 @@ static int32_t mnodeDbActionInsert(SSdbOper *pOper) {
   SDbObj *pDb = pOper->pObj;
   SAcctObj *pAcct = mnodeGetAcct(pDb->acct);
 
-  pDb->pHead = NULL;
-  pDb->pTail = NULL;
+  pthread_mutex_init(&pDb->mutex, NULL);
+  pDb->vgListSize = VG_LIST_SIZE;
+  pDb->vgList = calloc(pDb->vgListSize, sizeof(SVgObj *));
   pDb->numOfVgroups = 0;
   pDb->numOfTables = 0;
   pDb->numOfSuperTables = 0;
@@ -94,14 +102,15 @@ static int32_t mnodeDbActionDelete(SSdbOper *pOper) {
 }
 
 static int32_t mnodeDbActionUpdate(SSdbOper *pOper) {
-  SDbObj *pDb = pOper->pObj;
-  SDbObj *pSaved = mnodeGetDb(pDb->name);
-  if (pDb != pSaved) {
-    memcpy(pSaved, pDb, pOper->rowSize);
-    free(pDb);
+  SDbObj *pNew = pOper->pObj;
+  SDbObj *pDb = mnodeGetDb(pNew->name);
+  if (pDb != NULL && pNew != pDb) {
+    memcpy(pDb, pNew, pOper->rowSize);
+    free(pNew->vgList);
+    free(pNew);
   }
-  mnodeUpdateAllDbVgroups(pSaved);
-  mnodeDecDbRef(pSaved);
+  //mnodeUpdateAllDbVgroups(pDb);
+  mnodeDecDbRef(pDb);
   return TSDB_CODE_SUCCESS;
 }
 
@@ -384,7 +393,7 @@ static int32_t mnodeCreateDb(SAcctObj *pAcct, SCMCreateDbMsg *pCreate, void *pMs
 
   code = sdbInsertRow(&oper);
   if (code != TSDB_CODE_SUCCESS) {
-    tfree(pDb);
+    mnodeDestroyDb(pDb);
     mLInfo("db:%s, failed to create, reason:%s", pDb->name, tstrerror(code));
     return code;
   } else {
@@ -421,45 +430,33 @@ void mnodePrintVgroups(SDbObj *pDb, char *oper) {
 void mnodeAddVgroupIntoDb(SVgObj *pVgroup) {
   SDbObj *pDb = pVgroup->pDb;
 
-  pVgroup->next = pDb->pHead;
-  pVgroup->prev = NULL;
-
-  if (pDb->pHead) pDb->pHead->prev = pVgroup;
-  if (pDb->pTail == NULL) pDb->pTail = pVgroup;
-
-  pDb->pHead = pVgroup;
-  pDb->numOfVgroups++;
-}
-
-void mnodeAddVgroupIntoDbTail(SVgObj *pVgroup) {
-  SDbObj *pDb = pVgroup->pDb;
-  pVgroup->next = NULL;
-  pVgroup->prev = pDb->pTail;
-
-  if (pDb->pTail) pDb->pTail->next = pVgroup;
-  if (pDb->pHead == NULL) pDb->pHead = pVgroup;
+  pthread_mutex_lock(&pDb->mutex);
+  int32_t vgPos = pDb->numOfVgroups++;
+  if (vgPos >= pDb->vgListSize) {
+    pDb->vgList = realloc(pDb->vgList, pDb->vgListSize * 2 * sizeof(SVgObj *));
+    memset(pDb->vgList + pDb->vgListSize, 0, pDb->vgListSize * sizeof(SVgObj *));
+    pDb->vgListSize *= 2;
+  }
 
-  pDb->pTail = pVgroup;
-  pDb->numOfVgroups++;
+  pDb->vgList[vgPos] = pVgroup;
+  pthread_mutex_unlock(&pDb->mutex);
 }
 
 void mnodeRemoveVgroupFromDb(SVgObj *pVgroup) {
   SDbObj *pDb = pVgroup->pDb;
-  if (pVgroup->prev) pVgroup->prev->next = pVgroup->next;
-  if (pVgroup->next) pVgroup->next->prev = pVgroup->prev;
-  if (pVgroup->prev == NULL) pDb->pHead = pVgroup->next;
-  if (pVgroup->next == NULL) pDb->pTail = pVgroup->prev;
-  pDb->numOfVgroups--;
-}
 
-void mnodeMoveVgroupToTail(SVgObj *pVgroup) {
-  mnodeRemoveVgroupFromDb(pVgroup);
-  mnodeAddVgroupIntoDbTail(pVgroup);
-}
+  pthread_mutex_lock(&pDb->mutex);
+  for (int32_t v1 = 0; v1 < pDb->numOfVgroups; ++v1) {
+    if (pDb->vgList[v1] == pVgroup) {
+      for (int32_t v2 = v1; v2 < pDb->numOfVgroups - 1; ++v2) {
+        pDb->vgList[v2] = pDb->vgList[v2 + 1];
+      }
+      pDb->numOfVgroups--;
+      break;
+    }
+  }
 
-void mnodeMoveVgroupToHead(SVgObj *pVgroup) {
-  mnodeRemoveVgroupFromDb(pVgroup);
-  mnodeAddVgroupIntoDb(pVgroup);
+  pthread_mutex_unlock(&pDb->mutex);
 }
 
 void mnodeCleanupDbs() {
@@ -531,11 +528,6 @@ static int32_t mnodeGetDbMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn
 #ifndef __CLOUD_VERSION__
   if (strcmp(pUser->user, TSDB_DEFAULT_USER) == 0) {
 #endif
-    pShow->bytes[cols] = 4;
-    pSchema[cols].type = TSDB_DATA_TYPE_INT;
-    strcpy(pSchema[cols].name, "maxtables");
-    pSchema[cols].bytes = htons(pShow->bytes[cols]);
-    cols++;
 
     pShow->bytes[cols] = 4;
     pSchema[cols].type = TSDB_DATA_TYPE_INT;
@@ -561,12 +553,6 @@ static int32_t mnodeGetDbMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn
     pSchema[cols].bytes = htons(pShow->bytes[cols]);
     cols++;
 
-    pShow->bytes[cols] = 4;
-    pSchema[cols].type = TSDB_DATA_TYPE_INT;
-    strcpy(pSchema[cols].name, "ctime(Sec.)");
-    pSchema[cols].bytes = htons(pShow->bytes[cols]);
-    cols++;
-
     pShow->bytes[cols] = 1;
     pSchema[cols].type = TSDB_DATA_TYPE_TINYINT;
     strcpy(pSchema[cols].name, "wallevel");
@@ -676,10 +662,6 @@ static int32_t mnodeRetrieveDbs(SShowObj *pShow, char *data, int32_t rows, void
 #ifndef __CLOUD_VERSION__
     if (strcmp(pUser->user, TSDB_DEFAULT_USER) == 0) {
 #endif
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-      *(int32_t *)pWrite = pDb->cfg.maxTables;  // table num can be created should minus 1
-      cols++;
-
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
       *(int32_t *)pWrite = pDb->cfg.cacheBlockSize;
       cols++;
@@ -696,10 +678,6 @@ static int32_t mnodeRetrieveDbs(SShowObj *pShow, char *data, int32_t rows, void
       *(int32_t *)pWrite = pDb->cfg.maxRowsPerFileBlock;
       cols++;
       
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-      *(int32_t *)pWrite = pDb->cfg.commitTime;
-      cols++;
-
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
       *(int8_t *)pWrite = pDb->cfg.walLevel;
       cols++;
diff --git a/src/mnode/src/mnodeDnode.c b/src/mnode/src/mnodeDnode.c
index 29272fbd4f339ca7bf6a28f0e336eb9497a94da6..a65f54cd8bd186adaf67bc5c45ebe3ea933a4c75 100644
--- a/src/mnode/src/mnodeDnode.c
+++ b/src/mnode/src/mnodeDnode.c
@@ -69,6 +69,7 @@ static int32_t mnodeDnodeActionInsert(SSdbOper *pOper) {
   SDnodeObj *pDnode = pOper->pObj;
   if (pDnode->status != TAOS_DN_STATUS_DROPPING) {
     pDnode->status = TAOS_DN_STATUS_OFFLINE;
+    pDnode->lastAccess = tsAccessSquence;
   }
 
   return TSDB_CODE_SUCCESS;
@@ -187,7 +188,27 @@ int32_t mnodeGetDnodesNum() {
   return sdbGetNumOfRows(tsDnodeSdb);
 }
 
-int32_t mnodeGetOnlinDnodesNum(char *ep) {
+int32_t mnodeGetOnlinDnodesCpuCoreNum() {
+  SDnodeObj *pDnode = NULL;
+  void *     pIter = NULL;
+  int32_t    cpuCores = 0;
+
+  while (1) {
+    pIter = mnodeGetNextDnode(pIter, &pDnode);
+    if (pDnode == NULL) break;
+    if (pDnode->status != TAOS_DN_STATUS_OFFLINE) {
+      cpuCores += pDnode->numOfCores;
+    }
+    mnodeDecDnodeRef(pDnode);
+  }
+
+  sdbFreeIter(pIter);
+
+  if (cpuCores < 2) cpuCores = 2;
+  return cpuCores;
+}
+
+int32_t mnodeGetOnlinDnodesNum() {
   SDnodeObj *pDnode = NULL;
   void *     pIter = NULL;
   int32_t    onlineDnodes = 0;
@@ -283,15 +304,17 @@ static void mnodeProcessCfgDnodeMsgRsp(SRpcMsg *rpcMsg) {
 }
 
 static bool mnodeCheckClusterCfgPara(const SClusterCfg *clusterCfg) {
-  if (clusterCfg->numOfMnodes        != tsNumOfMnodes)        return false;
-  if (clusterCfg->mnodeEqualVnodeNum != tsMnodeEqualVnodeNum) return false;
-  if (clusterCfg->offlineThreshold   != tsOfflineThreshold)   return false;
-  if (clusterCfg->statusInterval     != tsStatusInterval)     return false;
+  if (clusterCfg->numOfMnodes        != htonl(tsNumOfMnodes))        return false;
+  if (clusterCfg->mnodeEqualVnodeNum != htonl(tsMnodeEqualVnodeNum)) return false;
+  if (clusterCfg->offlineThreshold   != htonl(tsOfflineThreshold))   return false;
+  if (clusterCfg->statusInterval     != htonl(tsStatusInterval))     return false;
+  if (clusterCfg->maxtablesPerVnode  != htonl(tsMaxTablePerVnode))   return false;
+  if (clusterCfg->maxVgroupsPerDb    != htonl(tsMaxVgroupsPerDb))    return false;
 
   if (0 != strncasecmp(clusterCfg->arbitrator, tsArbitrator, strlen(tsArbitrator))) return false;
   if (0 != strncasecmp(clusterCfg->timezone, tsTimezone, strlen(tsTimezone)))       return false;
-  if (0 != strncasecmp(clusterCfg->locale, tsLocale, strlen(tsLocale)))              return false;
-  if (0 != strncasecmp(clusterCfg->charset, tsCharset, strlen(tsCharset)))           return false;
+  if (0 != strncasecmp(clusterCfg->locale, tsLocale, strlen(tsLocale)))             return false;
+  if (0 != strncasecmp(clusterCfg->charset, tsCharset, strlen(tsCharset)))          return false;
     
   return true;
 }
@@ -376,7 +399,7 @@ static int32_t mnodeProcessDnodeStatusMsg(SMnodeMsg *pMsg) {
     if (false == ret) {
       mnodeDecDnodeRef(pDnode);
       rpcFreeCont(pRsp);
-      mError("dnode %s cluster cfg parameters inconsistent", pStatus->dnodeEp);
+      mError("dnode:%d, %s cluster cfg parameters inconsistent", pDnode->dnodeId, pStatus->dnodeEp);
       return TSDB_CODE_MND_CLUSTER_CFG_INCONSISTENT;
     }
     
@@ -468,18 +491,22 @@ static int32_t mnodeDropDnodeByEp(char *ep, SMnodeMsg *pMsg) {
     return TSDB_CODE_MND_DNODE_NOT_EXIST;
   }
 
-  mnodeDecDnodeRef(pDnode);
   if (strcmp(pDnode->dnodeEp, mnodeGetMnodeMasterEp()) == 0) {
     mError("dnode:%d, can't drop dnode:%s which is master", pDnode->dnodeId, ep);
+    mnodeDecDnodeRef(pDnode);
     return TSDB_CODE_MND_NO_REMOVE_MASTER;
   }
 
   mInfo("dnode:%d, start to drop it", pDnode->dnodeId);
+
 #ifndef _SYNC
-  return mnodeDropDnode(pDnode, pMsg);
+  int32_t code = mnodeDropDnode(pDnode, pMsg);
 #else
-  return balanceDropDnode(pDnode);
+  int32_t code = balanceDropDnode(pDnode);
 #endif
+
+  mnodeDecDnodeRef(pDnode);
+  return code;
 }
 
 static int32_t mnodeProcessCreateDnodeMsg(SMnodeMsg *pMsg) {
diff --git a/src/mnode/src/mnodeSdb.c b/src/mnode/src/mnodeSdb.c
index cdcb7357f1a88c9a21097a9c1532e129cf0473db..46678cb133d54992593017198915114cdc932384 100644
--- a/src/mnode/src/mnodeSdb.c
+++ b/src/mnode/src/mnodeSdb.c
@@ -264,8 +264,12 @@ static void sdbConfirmForward(void *ahandle, void *param, int32_t code) {
   if (pOper->cb != NULL) {
     pOper->retCode = (*pOper->cb)(pMsg, pOper->retCode);
   }
-
   dnodeSendRpcMnodeWriteRsp(pMsg, pOper->retCode);
+
+  // if ahandle, means this func is called by sdb write
+  if (ahandle == NULL) {
+    sdbDecRef(pOper->table, pOper->pObj);
+  }
   taosFreeQitem(pOper);
 }
 
@@ -581,16 +585,26 @@ static int sdbWrite(void *param, void *data, int type) {
     return sdbInsertHash(pTable, &oper);
   } else if (action == SDB_ACTION_DELETE) {
     SSdbRow *rowMeta = sdbGetRowMeta(pTable, pHead->cont);
-    assert(rowMeta != NULL && rowMeta->row != NULL);
+    if (rowMeta == NULL || rowMeta->row == NULL) {
+      sdbError("table:%s, failed to get object:%s from wal while dispose delete action", pTable->tableName,
+               pHead->cont);
+      return TSDB_CODE_SUCCESS;
+    }
     SSdbOper oper = {.table = pTable, .pObj = rowMeta->row};
     return sdbDeleteHash(pTable, &oper);
   } else if (action == SDB_ACTION_UPDATE) {
     SSdbRow *rowMeta = sdbGetRowMeta(pTable, pHead->cont);
-    assert(rowMeta != NULL && rowMeta->row != NULL);
+    if (rowMeta == NULL || rowMeta->row == NULL) {
+      sdbError("table:%s, failed to get object:%s from wal while dispose update action", pTable->tableName,
+               pHead->cont);
+      return TSDB_CODE_SUCCESS;
+    }
     SSdbOper oper = {.rowSize = pHead->len, .rowData = pHead->cont, .table = pTable};
     code = (*pTable->decodeFp)(&oper);
     return sdbUpdateHash(pTable, &oper);
-  } else { return TSDB_CODE_MND_INVALID_MSG_TYPE; }
+  } else {
+    return TSDB_CODE_MND_INVALID_MSG_TYPE;
+  }
 }
 
 int32_t sdbInsertRow(SSdbOper *pOper) {
@@ -663,14 +677,18 @@ int32_t sdbDeleteRow(SSdbOper *pOper) {
     return TSDB_CODE_MND_SDB_INVAID_META_ROW;
   }
 
+  sdbIncRef(pTable, pOper->pObj);
+
   int32_t code = sdbDeleteHash(pTable, pOper);
   if (code != TSDB_CODE_SUCCESS) {
     sdbError("table:%s, failed to delete from hash", pTable->tableName);
+    sdbDecRef(pTable, pOper->pObj);
     return code;
   }
 
   // just delete data from memory
   if (pOper->type != SDB_OPER_GLOBAL) {
+    sdbDecRef(pTable, pOper->pObj);
     return TSDB_CODE_SUCCESS;
   }
 
@@ -692,7 +710,6 @@ int32_t sdbDeleteRow(SSdbOper *pOper) {
              pNewOper->pMsg, pTable->tableName, pOper->pObj, sdbGetKeyStrFromObj(pTable, pOper->pObj));
   }
 
-  sdbIncRef(pNewOper->table, pNewOper->pObj);
   taosWriteQitem(tsSdbWriteQueue, TAOS_QTYPE_RPC, pNewOper);
   return TSDB_CODE_SUCCESS;
 }
@@ -968,10 +985,11 @@ static void *sdbWorkerFp(void *param) {
 
       int32_t code = sdbWrite(pOper, pHead, type);
       if (code > 0) code = 0;
-      if (pOper)
+      if (pOper) {
         pOper->retCode = code;
-      else
+      } else {
         pHead->len = code;  // hackway
+      }
     }
 
     walFsync(tsSdbObj.wal);
@@ -983,7 +1001,6 @@ static void *sdbWorkerFp(void *param) {
 
       if (type == TAOS_QTYPE_RPC) {
         pOper = (SSdbOper *)item;
-        sdbDecRef(pOper->table, pOper->pObj);
         sdbConfirmForward(NULL, pOper, pOper->retCode);
       } else if (type == TAOS_QTYPE_FWD) {
         pHead = (SWalHead *)item;
diff --git a/src/mnode/src/mnodeTable.c b/src/mnode/src/mnodeTable.c
index 523d7001c22df9eec6fe5f32042ac8b7d41fb549..58eaecb20a3891f80099da45ea795d19f5f69499 100644
--- a/src/mnode/src/mnodeTable.c
+++ b/src/mnode/src/mnodeTable.c
@@ -319,15 +319,6 @@ static int32_t mnodeChildTableActionRestored() {
       continue;
     }
 
-    if (pVgroup->tableList == NULL) {
-      mError("ctable:%s, vgId:%d tableList is null", pTable->info.tableId, pTable->vgId);
-      pTable->vgId = 0;
-      SSdbOper desc = {.type = SDB_OPER_LOCAL, .pObj = pTable, .table = tsChildTableSdb};
-      sdbDeleteRow(&desc);
-      mnodeDecTableRef(pTable);
-      continue;
-    }
-
     if (pTable->info.type == TSDB_CHILD_TABLE) {
       SSuperTableObj *pSuperTable = mnodeGetSuperTableByUid(pTable->suid);
       if (pSuperTable == NULL) {
@@ -1600,8 +1591,8 @@ static int32_t mnodeDoCreateChildTableCb(SMnodeMsg *pMsg, int32_t code) {
   assert(pTable);
 
   if (code == TSDB_CODE_SUCCESS) {
-    mDebug("app:%p:%p, table:%s, create table in sid:%d, uid:%" PRIu64, pMsg->rpcMsg.ahandle, pMsg, pTable->info.tableId,
-           pTable->sid, pTable->uid);
+    mDebug("app:%p:%p, table:%s, created in mnode, vgId:%d sid:%d, uid:%" PRIu64 ", result:%s", pMsg->rpcMsg.ahandle,
+           pMsg, pTable->info.tableId, pTable->vgId, pTable->sid, pTable->uid, tstrerror(code));
   } else {
     mError("app:%p:%p, table:%s, failed to create table sid:%d, uid:%" PRIu64 ", reason:%s", pMsg->rpcMsg.ahandle, pMsg,
            pTable->info.tableId, pTable->sid, pTable->uid, tstrerror(code));
@@ -1730,19 +1721,15 @@ static int32_t mnodeProcessCreateChildTableMsg(SMnodeMsg *pMsg) {
     return code;
   }
 
-  SVgObj *pVgroup = mnodeGetAvailableVgroup(pMsg->pDb);
-  if (pVgroup == NULL) {
-    mDebug("app:%p:%p, table:%s, start to create a new vgroup", pMsg->rpcMsg.ahandle, pMsg, pCreate->tableId);
-    return mnodeCreateVgroup(pMsg, pMsg->pDb);
-  }
-
   if (pMsg->retry == 0) {
     if (pMsg->pTable == NULL) {
-      int32_t sid = taosAllocateId(pVgroup->idPool);
-      if (sid <= 0) {
-        mDebug("app:%p:%p, table:%s, no enough sid in vgId:%d", pMsg->rpcMsg.ahandle, pMsg, pCreate->tableId,
-               pVgroup->vgId);
-        return mnodeCreateVgroup(pMsg, pMsg->pDb);
+      SVgObj *pVgroup = NULL;
+      int32_t sid = 0;
+      code = mnodeGetAvailableVgroup(pMsg, &pVgroup, &sid);
+      if (code != TSDB_CODE_SUCCESS) {
+        mDebug("app:%p:%p, table:%s, failed to get available vgroup, reason:%s", pMsg->rpcMsg.ahandle, pMsg,
+               pCreate->tableId, tstrerror(code));
+        return code;
       }
 
       if (pMsg->pVgroup == NULL) {
@@ -1750,7 +1737,7 @@ static int32_t mnodeProcessCreateChildTableMsg(SMnodeMsg *pMsg) {
         mnodeIncVgroupRef(pVgroup);
       }
 
-      mDebug("app:%p:%p, table:%s, create table in vgroup, vgId:%d sid:%d", pMsg->rpcMsg.ahandle, pMsg, pCreate->tableId,
+      mDebug("app:%p:%p, table:%s, allocated in vgroup, vgId:%d sid:%d", pMsg->rpcMsg.ahandle, pMsg, pCreate->tableId,
              pVgroup->vgId, sid);
 
       return mnodeDoCreateChildTable(pMsg, sid);
@@ -2149,6 +2136,7 @@ static void mnodeDropAllChildTablesInStable(SSuperTableObj *pStable) {
   mInfo("stable:%s, all child tables:%d is dropped from sdb", pStable->info.tableId, numOfTables);
 }
 
+#if 0
 static SChildTableObj* mnodeGetTableByPos(int32_t vnode, int32_t sid) {
   SVgObj *pVgroup = mnodeGetVgroup(vnode);
   if (pVgroup == NULL) return NULL;
@@ -2159,8 +2147,11 @@ static SChildTableObj* mnodeGetTableByPos(int32_t vnode, int32_t sid) {
   mnodeDecVgroupRef(pVgroup);
   return pTable;
 }
+#endif
 
 static int32_t mnodeProcessTableCfgMsg(SMnodeMsg *pMsg) {
+  return TSDB_CODE_COM_OPS_NOT_SUPPORT;
+#if 0  
   SDMConfigTableMsg *pCfg = pMsg->rpcMsg.pCont;
   pCfg->dnodeId = htonl(pCfg->dnodeId);
   pCfg->vgId = htonl(pCfg->vgId);
@@ -2184,6 +2175,7 @@ static int32_t mnodeProcessTableCfgMsg(SMnodeMsg *pMsg) {
   pMsg->rpcRsp.rsp = pCreate;
   pMsg->rpcRsp.len = htonl(pCreate->contLen);
   return TSDB_CODE_SUCCESS;
+#endif  
 }
 
 // handle drop child response
diff --git a/src/mnode/src/mnodeVgroup.c b/src/mnode/src/mnodeVgroup.c
index 966d4b0dd807032baed7dcfd42a9008bb834c069..5658f4bcbf17ac2f6f0fa7981f6abf3c170dada7 100644
--- a/src/mnode/src/mnodeVgroup.c
+++ b/src/mnode/src/mnodeVgroup.c
@@ -46,6 +46,7 @@ typedef enum {
 static void   *tsVgroupSdb = NULL;
 static int32_t tsVgUpdateSize = 0;
 
+static int32_t mnodeAllocVgroupIdPool(SVgObj *pInputVgroup);
 static int32_t mnodeGetVgroupMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn);
 static int32_t mnodeRetrieveVgroups(SShowObj *pShow, char *data, int32_t rows, void *pConn);
 static void    mnodeProcessCreateVnodeRsp(SRpcMsg *rpcMsg);
@@ -53,17 +54,17 @@ static void    mnodeProcessDropVnodeRsp(SRpcMsg *rpcMsg);
 static int32_t mnodeProcessVnodeCfgMsg(SMnodeMsg *pMsg) ;
 static void    mnodeSendDropVgroupMsg(SVgObj *pVgroup, void *ahandle);
 
-static int32_t mnodeVgroupActionDestroy(SSdbOper *pOper) {
-  SVgObj *pVgroup = pOper->pObj;
+static void mnodeDestroyVgroup(SVgObj *pVgroup) {
   if (pVgroup->idPool) {
     taosIdPoolCleanUp(pVgroup->idPool);
     pVgroup->idPool = NULL;
   }
-  if (pVgroup->tableList) {
-    tfree(pVgroup->tableList);
-  }
 
-  tfree(pOper->pObj);
+  tfree(pVgroup);
+}
+
+static int32_t mnodeVgroupActionDestroy(SSdbOper *pOper) {
+  mnodeDestroyVgroup(pOper->pObj);
   return TSDB_CODE_SUCCESS;
 }
 
@@ -82,21 +83,9 @@ static int32_t mnodeVgroupActionInsert(SSdbOper *pOper) {
   }
 
   pVgroup->pDb = pDb;
-  pVgroup->prev = NULL;
-  pVgroup->next = NULL;
   pVgroup->accessState = TSDB_VN_ALL_ACCCESS;
-
-  int32_t size = sizeof(SChildTableObj *) * pDb->cfg.maxTables;
-  pVgroup->tableList = calloc(pDb->cfg.maxTables, sizeof(SChildTableObj *));
-  if (pVgroup->tableList == NULL) {
-    mError("vgId:%d, failed to malloc(size:%d) for the tableList of vgroups", pVgroup->vgId, size);
-    return -1;
-  }
-
-  pVgroup->idPool = taosInitIdPool(pDb->cfg.maxTables);
-  if (pVgroup->idPool == NULL) {
-    mError("vgId:%d, failed to taosInitIdPool for vgroups", pVgroup->vgId);
-    tfree(pVgroup->tableList);
+  if (mnodeAllocVgroupIdPool(pVgroup) < 0) {
+    mError("vgId:%d, failed to init idpool for vgroups", pVgroup->vgId);
     return -1;
   }
 
@@ -134,20 +123,6 @@ static int32_t mnodeVgroupActionDelete(SSdbOper *pOper) {
   return TSDB_CODE_SUCCESS;
 }
 
-static void mnodeVgroupUpdateIdPool(SVgObj *pVgroup) {
-  int32_t oldTables = taosIdPoolMaxSize(pVgroup->idPool);
-  SDbObj *pDb = pVgroup->pDb;
-  if (pDb != NULL) {
-    if (pDb->cfg.maxTables != oldTables) {
-      mInfo("vgId:%d tables change from %d to %d", pVgroup->vgId, oldTables, pDb->cfg.maxTables);
-      taosUpdateIdPool(pVgroup->idPool, pDb->cfg.maxTables);
-      int32_t size = sizeof(SChildTableObj *) * pDb->cfg.maxTables;
-      pVgroup->tableList = (SChildTableObj **)realloc(pVgroup->tableList, size);
-      memset(pVgroup->tableList + oldTables, 0, (pDb->cfg.maxTables - oldTables) * sizeof(SChildTableObj *));
-    }
-  }
-}
-
 static int32_t mnodeVgroupActionUpdate(SSdbOper *pOper) {
   SVgObj *pNew = pOper->pObj;
   SVgObj *pVgroup = mnodeGetVgroup(pNew->vgId);
@@ -174,7 +149,6 @@ static int32_t mnodeVgroupActionUpdate(SSdbOper *pOper) {
     free(pNew);
   }
 
-  mnodeVgroupUpdateIdPool(pVgroup);
 
   // reset vgid status on vgroup changed
   mDebug("vgId:%d, reset sync status to unsynced", pVgroup->vgId);
@@ -344,8 +318,132 @@ void mnodeUpdateVgroupStatus(SVgObj *pVgroup, SDnodeObj *pDnode, SVnodeLoad *pVl
   }
 }
 
-SVgObj *mnodeGetAvailableVgroup(SDbObj *pDb) {
-  return pDb->pHead;
+static int32_t mnodeAllocVgroupIdPool(SVgObj *pInputVgroup) {
+  SDbObj *pDb = pInputVgroup->pDb;
+  if (pDb == NULL) return TSDB_CODE_MND_APP_ERROR;
+
+  int32_t minIdPoolSize = TSDB_MAX_TABLES;
+  int32_t maxIdPoolSize = TSDB_MIN_TABLES;
+  for (int32_t v = 0; v < pDb->numOfVgroups; ++v) {
+    SVgObj *pVgroup = pDb->vgList[v];
+    if (pVgroup == NULL) continue;
+
+    int32_t idPoolSize = taosIdPoolMaxSize(pVgroup->idPool);
+    minIdPoolSize = MIN(minIdPoolSize, idPoolSize);
+    maxIdPoolSize = MAX(maxIdPoolSize, idPoolSize);
+  }
+
+  // new vgroup
+  if (pInputVgroup->idPool == NULL) {
+    pInputVgroup->idPool = taosInitIdPool(maxIdPoolSize);
+    if (pInputVgroup->idPool == NULL) {
+      mError("vgId:%d, failed to init idPool for vgroup, size:%d", pInputVgroup->vgId, maxIdPoolSize);
+      return TSDB_CODE_MND_OUT_OF_MEMORY;
+    } else {
+      mDebug("vgId:%d, init idPool for vgroup, size:%d", pInputVgroup->vgId, maxIdPoolSize);
+      return TSDB_CODE_SUCCESS;
+    }
+  }
+
+  // realloc all vgroups in db
+  int32_t newIdPoolSize;
+  if (minIdPoolSize * 4 < TSDB_TABLES_STEP) {
+    newIdPoolSize = minIdPoolSize * 4;
+  } else {
+    newIdPoolSize = ((minIdPoolSize / TSDB_TABLES_STEP) + 1) * TSDB_TABLES_STEP;
+  }
+
+  if (newIdPoolSize > tsMaxTablePerVnode) {
+    if (minIdPoolSize >= tsMaxTablePerVnode) {
+      mError("db:%s, minIdPoolSize:%d newIdPoolSize:%d larger than maxTablesPerVnode:%d", pDb->name, minIdPoolSize, newIdPoolSize,
+             tsMaxTablePerVnode);
+      return TSDB_CODE_MND_NO_ENOUGH_DNODES;
+    } else {
+      newIdPoolSize = tsMaxTablePerVnode;
+    }
+  }
+
+  for (int32_t v = 0; v < pDb->numOfVgroups; ++v) {
+    SVgObj *pVgroup = pDb->vgList[v];
+    if (pVgroup == NULL) continue;
+
+    int32_t oldIdPoolSize = taosIdPoolMaxSize(pVgroup->idPool);
+    if (newIdPoolSize == oldIdPoolSize) continue;
+
+    if (taosUpdateIdPool(pVgroup->idPool, newIdPoolSize) < 0) {
+      mError("vgId:%d, failed to update idPoolSize from %d to %d", pVgroup->vgId, oldIdPoolSize, newIdPoolSize);
+      return TSDB_CODE_MND_NO_ENOUGH_DNODES;
+    } else {
+      mDebug("vgId:%d, idPoolSize update from %d to %d", pVgroup->vgId, oldIdPoolSize, newIdPoolSize);
+    }
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t mnodeGetAvailableVgroup(SMnodeMsg *pMsg, SVgObj **ppVgroup, int32_t *pSid) {
+  SDbObj *pDb = pMsg->pDb;
+  pthread_mutex_lock(&pDb->mutex);
+  
+  for (int32_t v = 0; v < pDb->numOfVgroups; ++v) {
+    int vgIndex = (v + pDb->vgListIndex) % pDb->numOfVgroups;
+    SVgObj *pVgroup = pDb->vgList[vgIndex];
+    if (pVgroup == NULL) {
+      mError("db:%s, index:%d vgroup is null", pDb->name, vgIndex);
+      pthread_mutex_unlock(&pDb->mutex);
+      return TSDB_CODE_MND_APP_ERROR;
+    }
+
+    int32_t sid = taosAllocateId(pVgroup->idPool);
+    if (sid <= 0) {
+      mDebug("app:%p:%p, db:%s, no enough sid in vgId:%d", pMsg->rpcMsg.ahandle, pMsg, pDb->name, pVgroup->vgId);
+      continue;
+    }
+
+    *pSid = sid;
+    *ppVgroup = pVgroup;
+    pDb->vgListIndex = vgIndex;
+
+    pthread_mutex_unlock(&pDb->mutex);
+    return TSDB_CODE_SUCCESS;
+  }
+
+  int maxVgroupsPerDb = tsMaxVgroupsPerDb;
+  if (maxVgroupsPerDb <= 0) {
+    maxVgroupsPerDb = mnodeGetOnlinDnodesCpuCoreNum();
+    maxVgroupsPerDb = MAX(maxVgroupsPerDb, 2);
+  }
+
+  if (pDb->numOfVgroups < maxVgroupsPerDb) {
+    mDebug("app:%p:%p, db:%s, try to create a new vgroup, numOfVgroups:%d maxVgroupsPerDb:%d", pMsg->rpcMsg.ahandle, pMsg,
+           pDb->name, pDb->numOfVgroups, maxVgroupsPerDb);
+    pthread_mutex_unlock(&pDb->mutex);
+    int32_t code = mnodeCreateVgroup(pMsg);
+    if (code == TSDB_CODE_MND_ACTION_IN_PROGRESS) return code;
+  }
+
+  SVgObj *pVgroup = pDb->vgList[0];
+  if (pVgroup == NULL) return TSDB_CODE_MND_NO_ENOUGH_DNODES;
+
+  int32_t code = mnodeAllocVgroupIdPool(pVgroup);
+  if (code != TSDB_CODE_SUCCESS) {
+    pthread_mutex_unlock(&pDb->mutex);
+    return code;
+  }
+
+  int32_t sid = taosAllocateId(pVgroup->idPool);
+  if (sid <= 0) {
+    mError("app:%p:%p, db:%s, no enough sid in vgId:%d", pMsg->rpcMsg.ahandle, pMsg, pDb->name, pVgroup->vgId);
+    pthread_mutex_unlock(&pDb->mutex);
+    return TSDB_CODE_MND_NO_ENOUGH_DNODES;
+  }
+
+  *pSid = sid;
+  *ppVgroup = pVgroup;
+  pDb->vgListIndex = 0;
+  pthread_mutex_unlock(&pDb->mutex);
+
+  return TSDB_CODE_SUCCESS;
 }
 
 void *mnodeGetNextVgroup(void *pIter, SVgObj **pVgroup) { 
@@ -378,8 +476,9 @@ static int32_t mnodeCreateVgroupCb(SMnodeMsg *pMsg, int32_t code) {
   return TSDB_CODE_MND_ACTION_IN_PROGRESS;
 }
 
-int32_t mnodeCreateVgroup(SMnodeMsg *pMsg, SDbObj *pDb) {
+int32_t mnodeCreateVgroup(SMnodeMsg *pMsg) {
   if (pMsg == NULL) return TSDB_CODE_MND_APP_ERROR;
+  SDbObj *pDb = pMsg->pDb;
 
   SVgObj *pVgroup = (SVgObj *)calloc(1, sizeof(SVgObj));
   tstrncpy(pVgroup->dbName, pDb->name, TSDB_ACCT_LEN + TSDB_DB_NAME_LEN);
@@ -407,7 +506,7 @@ int32_t mnodeCreateVgroup(SMnodeMsg *pMsg, SDbObj *pDb) {
   int32_t code = sdbInsertRow(&oper);
   if (code != TSDB_CODE_SUCCESS) {
     pMsg->pVgroup = NULL;
-    tfree(pVgroup);
+    mnodeDestroyVgroup(pVgroup);
   } else {
     code = TSDB_CODE_MND_ACTION_IN_PROGRESS;
   }
@@ -461,29 +560,27 @@ int32_t mnodeGetVgroupMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn) {
   pSchema[cols].bytes = htons(pShow->bytes[cols]);
   cols++;
 
-  int32_t maxReplica = 0;
-  SVgObj  *pVgroup   = NULL;
-  STableObj *pTable = NULL;
-  if (pShow->payloadLen > 0 ) {
-    pTable = mnodeGetTable(pShow->payload);
-    if (NULL == pTable || pTable->type == TSDB_SUPER_TABLE) {
-      mnodeDecTableRef(pTable);
-      return TSDB_CODE_MND_INVALID_TABLE_NAME;
-    }
-    mnodeDecTableRef(pTable);
-    pVgroup = mnodeGetVgroup(((SChildTableObj*)pTable)->vgId);
-    if (NULL == pVgroup) return TSDB_CODE_MND_INVALID_TABLE_NAME;
-    mnodeDecVgroupRef(pVgroup);
-    maxReplica = pVgroup->numOfVnodes > maxReplica ? pVgroup->numOfVnodes : maxReplica;
-  } else {
-    SVgObj *pVgroup = pDb->pHead;
-    while (pVgroup != NULL) {
-      maxReplica = pVgroup->numOfVnodes > maxReplica ? pVgroup->numOfVnodes : maxReplica;
-      pVgroup = pVgroup->next;
+  pShow->bytes[cols] = 4;
+  pSchema[cols].type = TSDB_DATA_TYPE_INT;
+  strcpy(pSchema[cols].name, "poolSize");
+  pSchema[cols].bytes = htons(pShow->bytes[cols]);
+  cols++;
+
+  pShow->bytes[cols] = 4;
+  pSchema[cols].type = TSDB_DATA_TYPE_INT;
+  strcpy(pSchema[cols].name, "maxTables");
+  pSchema[cols].bytes = htons(pShow->bytes[cols]);
+  cols++;
+
+  pShow->maxReplica = 1;
+  for (int32_t v = 0; v < pDb->numOfVgroups; ++v) {
+    SVgObj *pVgroup = pDb->vgList[v];
+    if (pVgroup != NULL) {
+      pShow->maxReplica = pVgroup->numOfVnodes > pShow->maxReplica ? pVgroup->numOfVnodes : pShow->maxReplica;
     }
   }
 
-  for (int32_t i = 0; i < maxReplica; ++i) {
+  for (int32_t i = 0; i < pShow->maxReplica; ++i) {
     pShow->bytes[cols] = 2;
     pSchema[cols].type = TSDB_DATA_TYPE_SMALLINT;
     strcpy(pSchema[cols].name, "dnode");
@@ -507,48 +604,54 @@ int32_t mnodeGetVgroupMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn) {
   pShow->numOfColumns = cols;
 
   pShow->offset[0] = 0;
-  for (int32_t i = 1; i < cols; ++i) pShow->offset[i] = pShow->offset[i - 1] + pShow->bytes[i - 1];
+  for (int32_t i = 1; i < cols; ++i) {
+    pShow->offset[i] = pShow->offset[i - 1] + pShow->bytes[i - 1];
+  }
 
+  pShow->numOfRows = pDb->numOfVgroups;
   pShow->rowSize = pShow->offset[cols - 1] + pShow->bytes[cols - 1];
 
-  if (NULL == pTable) {
-    pShow->numOfRows = pDb->numOfVgroups;
-    pShow->pIter = pDb->pHead;
-  } else {
-    pShow->numOfRows = 1;
-    pShow->pIter = pVgroup;
-  }
+  mnodeDecDbRef(pDb);
+  return 0;
+}
 
-   mnodeDecDbRef(pDb);
+static bool mnodeFilterVgroups(SVgObj *pVgroup, STableObj *pTable) {
+  if (NULL == pTable || pTable->type == TSDB_SUPER_TABLE) {
+    return true;
+  }
 
-  return 0;
+  SChildTableObj *pCTable = (SChildTableObj *)pTable;
+  if (pVgroup->vgId == pCTable->vgId) {
+    return true;
+  } else {
+    return false;
+  }
 }
 
 int32_t mnodeRetrieveVgroups(SShowObj *pShow, char *data, int32_t rows, void *pConn) {
   int32_t numOfRows = 0;
   SVgObj *pVgroup = NULL;
-  int32_t maxReplica = 0;
   int32_t cols = 0;
   char *  pWrite;
 
   SDbObj *pDb = mnodeGetDb(pShow->db);
   if (pDb == NULL) return 0;
-  
+
   if (pDb->status != TSDB_DB_STATUS_READY) {
     mError("db:%s, status:%d, in dropping", pDb->name, pDb->status);
     return 0;
   }
 
-  pVgroup = pDb->pHead;
-  while (pVgroup != NULL) {
-    maxReplica = pVgroup->numOfVnodes > maxReplica ? pVgroup->numOfVnodes : maxReplica;
-    pVgroup    = pVgroup->next;
+  STableObj *pTable = NULL;
+  if (pShow->payloadLen > 0 ) {
+    pTable = mnodeGetTable(pShow->payload);
   }
 
   while (numOfRows < rows) {
-    pVgroup = (SVgObj *) pShow->pIter;
+    pShow->pIter = mnodeGetNextVgroup(pShow->pIter, &pVgroup);
     if (pVgroup == NULL) break;
-    pShow->pIter = (void *) pVgroup->next;
+    if (pVgroup->pDb != pDb) continue;
+    if (!mnodeFilterVgroups(pVgroup, pTable)) continue;
 
     cols = 0;
 
@@ -560,7 +663,15 @@ int32_t mnodeRetrieveVgroups(SShowObj *pShow, char *data, int32_t rows, void *pC
     *(int32_t *) pWrite = pVgroup->numOfTables;
     cols++;
 
-    for (int32_t i = 0; i < maxReplica; ++i) {
+    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+    *(int32_t *)pWrite = taosIdPoolMaxSize(pVgroup->idPool);
+    cols++;
+
+    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+    *(int32_t *)pWrite = tsMaxTablePerVnode;
+    cols++;
+
+    for (int32_t i = 0; i < pShow->maxReplica; ++i) {
       pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
       *(int16_t *) pWrite = pVgroup->vnodeGid[i].dnodeId;
       cols++;
@@ -588,38 +699,36 @@ int32_t mnodeRetrieveVgroups(SShowObj *pShow, char *data, int32_t rows, void *pC
       }
     }
 
+    mnodeDecVgroupRef(pVgroup);
     numOfRows++;
   }
 
   pShow->numOfReads += numOfRows;
+  mnodeDecTableRef(pTable);
   mnodeDecDbRef(pDb);
 
   return numOfRows;
 }
 
 void mnodeAddTableIntoVgroup(SVgObj *pVgroup, SChildTableObj *pTable) {
-  if (pTable->sid >= 1 && pVgroup->tableList[pTable->sid - 1] == NULL) {
-    pVgroup->tableList[pTable->sid - 1] = pTable;
+  int32_t idPoolSize = taosIdPoolMaxSize(pVgroup->idPool);
+  if (pTable->sid > idPoolSize) {
+    mnodeAllocVgroupIdPool(pVgroup);
+  }
+
+  if (pTable->sid >= 1) {
     taosIdPoolMarkStatus(pVgroup->idPool, pTable->sid);
     pVgroup->numOfTables++;
+    mnodeIncVgroupRef(pVgroup);
   }
-  
-  if (pVgroup->numOfTables >= pVgroup->pDb->cfg.maxTables) {
-    mnodeMoveVgroupToTail(pVgroup);
-  }
-
-  mnodeIncVgroupRef(pVgroup);
 }
 
 void mnodeRemoveTableFromVgroup(SVgObj *pVgroup, SChildTableObj *pTable) {
-  if (pTable->sid >= 1 && pVgroup->tableList[pTable->sid - 1] != NULL) {
-    pVgroup->tableList[pTable->sid - 1] = NULL;
+  if (pTable->sid >= 1) {
     taosFreeId(pVgroup->idPool, pTable->sid);
     pVgroup->numOfTables--;
+    mnodeDecVgroupRef(pVgroup);
   }
-
-  mnodeMoveVgroupToHead(pVgroup);
-  mnodeDecVgroupRef(pVgroup);
 }
 
 SMDCreateVnodeMsg *mnodeBuildCreateVnodeMsg(SVgObj *pVgroup) {
@@ -630,13 +739,16 @@ SMDCreateVnodeMsg *mnodeBuildCreateVnodeMsg(SVgObj *pVgroup) {
   if (pVnode == NULL) return NULL;
 
   strcpy(pVnode->db, pVgroup->dbName);
+  int32_t maxTables = taosIdPoolMaxSize(pVgroup->idPool);
+  //TODO: dynamic alloc tables in tsdb
+  maxTables = MAX(10000, tsMaxTablePerVnode);
 
   SMDVnodeCfg *pCfg = &pVnode->cfg;
   pCfg->vgId                = htonl(pVgroup->vgId);
   pCfg->cfgVersion          = htonl(pDb->cfgVersion);
   pCfg->cacheBlockSize      = htonl(pDb->cfg.cacheBlockSize);
   pCfg->totalBlocks         = htonl(pDb->cfg.totalBlocks);
-  pCfg->maxTables           = htonl(pDb->cfg.maxTables + 1);
+  pCfg->maxTables           = htonl(maxTables + 1);
   pCfg->daysPerFile         = htonl(pDb->cfg.daysPerFile);
   pCfg->daysToKeep          = htonl(pDb->cfg.daysToKeep);
   pCfg->daysToKeep1         = htonl(pDb->cfg.daysToKeep1);
@@ -857,9 +969,10 @@ void mnodeDropAllDnodeVgroups(SDnodeObj *pDropDnode) {
 
   sdbFreeIter(pIter);
 
-  mInfo("dnode:%d, all vgroups is dropped from sdb", pDropDnode->dnodeId);
+  mInfo("dnode:%d, all vgroups:%d is dropped from sdb", pDropDnode->dnodeId, numOfVgroups);
 }
 
+#if 0
 void mnodeUpdateAllDbVgroups(SDbObj *pAlterDb) {
   void *  pIter = NULL;
   SVgObj *pVgroup = NULL;
@@ -881,6 +994,7 @@ void mnodeUpdateAllDbVgroups(SDbObj *pAlterDb) {
 
   mInfo("db:%s, all vgroups is updated in sdb", pAlterDb->name);
 }
+#endif
 
 void mnodeDropAllDbVgroups(SDbObj *pDropDb) {
   void *  pIter = NULL;
diff --git a/src/tsdb/src/tsdbRWHelper.c b/src/tsdb/src/tsdbRWHelper.c
index 326da07a3662fe6b037a5ce2722ee191719cd0bd..5dd465147593cd2a581a89dc462daeefe7c86ea5 100644
--- a/src/tsdb/src/tsdbRWHelper.c
+++ b/src/tsdb/src/tsdbRWHelper.c
@@ -739,7 +739,7 @@ static int tsdbWriteBlockToFile(SRWHelper *pHelper, SFile *pFile, SDataCols *pDa
   pCompBlock->keyFirst = dataColsKeyFirst(pDataCols);
   pCompBlock->keyLast = dataColsKeyAt(pDataCols, rowsToWrite - 1);
 
-  tsdbDebug("vgId:%d tid:%d a block of data is written to file %s, offset %" PRId64
+  tsdbTrace("vgId:%d tid:%d a block of data is written to file %s, offset %" PRId64
             " numOfRows %d len %d numOfCols %" PRId16 " keyFirst %" PRId64 " keyLast %" PRId64,
             REPO_ID(helperRepo(pHelper)), pHelper->tableInfo.tid, pFile->fname, (int64_t)(pCompBlock->offset),
             (int)(pCompBlock->numOfRows), pCompBlock->len, pCompBlock->numOfCols, pCompBlock->keyFirst,
@@ -940,7 +940,7 @@ static int tsdbInsertSuperBlock(SRWHelper *pHelper, SCompBlock *pCompBlock, int
     ASSERT(pHelper->pCompInfo->blocks[0].keyLast < pHelper->pCompInfo->blocks[1].keyFirst);
   }
 
-  tsdbDebug("vgId:%d tid:%d a super block is inserted at index %d", REPO_ID(pHelper->pRepo), pHelper->tableInfo.tid,
+  tsdbTrace("vgId:%d tid:%d a super block is inserted at index %d", REPO_ID(pHelper->pRepo), pHelper->tableInfo.tid,
             blkIdx);
 
   return 0;
diff --git a/src/util/src/tidpool.c b/src/util/src/tidpool.c
index 3764c7966b00e2f002887efae957c6c306a12fff..53d81bb5422e5c1b3b7384a97186a93940d26408 100644
--- a/src/util/src/tidpool.c
+++ b/src/util/src/tidpool.c
@@ -123,7 +123,7 @@ void taosIdPoolMarkStatus(void *handle, int id) {
 int taosUpdateIdPool(id_pool_t *handle, int maxId) {
   id_pool_t *pIdPool = (id_pool_t*)handle;
   if (maxId <= pIdPool->maxId) {
-    return -1;
+    return 0;
   }
 
   bool *idList = calloc(maxId, sizeof(bool));
diff --git a/src/util/src/tkvstore.c b/src/util/src/tkvstore.c
index 2a24a59742efdbcc50b24f4e3216283bf0dbad67..ab2aa738c66b68684883a0f02a59bba4a5b90667 100644
--- a/src/util/src/tkvstore.c
+++ b/src/util/src/tkvstore.c
@@ -260,7 +260,7 @@ int tdUpdateKVStoreRecord(SKVStore *pStore, uint64_t uid, void *cont, int contLe
   }
 
   taosHashPut(pStore->map, (void *)(&uid), sizeof(uid), (void *)(&rInfo), sizeof(rInfo));
-  uDebug("put uid %" PRIu64 " into kvStore %s", uid, pStore->fname);
+  uTrace("put uid %" PRIu64 " into kvStore %s", uid, pStore->fname);
 
   return 0;
 }
diff --git a/tests/pytest/util/dnodes.py b/tests/pytest/util/dnodes.py
index 226682ff92b91b9352f8c73057f2e8f58fa0cfe3..0341b3f136663305adf6a860c8224da31bac7891 100644
--- a/tests/pytest/util/dnodes.py
+++ b/tests/pytest/util/dnodes.py
@@ -28,8 +28,9 @@ class TDSimClient:
             "locale": "en_US.UTF-8",
             "charset": "UTF-8",
             "asyncLog": "0",
-            "anyIp": "0",
-            "sdbDebugFlag": "135",
+            "maxTablesPerVnode": "4",
+            "maxVgroupsPerDb": "1000",
+            "sdbDebugFlag": "143",
             "rpcDebugFlag": "135",
             "tmrDebugFlag": "131",
             "cDebugFlag": "135",
@@ -37,7 +38,6 @@ class TDSimClient:
             "jnidebugFlag": "135",
             "qdebugFlag": "135",
             }
-
     def init(self, path):
         self.__init__()
         self.path = path
diff --git a/tests/script/general/db/alter_option.sim b/tests/script/general/db/alter_option.sim
index f871ead11df579494aea818cf186c346932f6bea..076f7364ee2a53401af1c2f78ee72ea4862c7509 100644
--- a/tests/script/general/db/alter_option.sim
+++ b/tests/script/general/db/alter_option.sim
@@ -2,7 +2,7 @@ system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c wallevel -v 0
 system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 4
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 1000
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 1000
 
 system sh/exec.sh -n dnode1 -s start
 
@@ -10,7 +10,7 @@ sleep 3000
 sql connect
 print ============================ dnode1 start
 
-sql create database db maxTables 500 cache 2 blocks 4 days 10 keep 20 minRows 300 maxRows 400 ctime 120 precision 'ms' comp 2 wal 1 replica 1
+sql create database db cache 2 blocks 4 days 10 keep 20 minRows 300 maxRows 400 ctime 120 precision 'ms' comp 2 wal 1 replica 1
 sql show databases
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 $data07 $data08 $data09 
 if $data00 != db then 
@@ -31,13 +31,10 @@ endi
 if $data06 != 20,20,20 then 
   return -1
 endi
-if $data07 != 500 then 
+if $data07 != 2 then 
   return -1
 endi
-if $data08 != 2 then 
-  return -1
-endi
-if $data09 != 4 then 
+if $data08 != 4 then 
   return -1
 endi
 
@@ -46,7 +43,6 @@ system sh/exec.sh -n dnode1 -s stop -x SIGINT
 return
 sql_error alter database db cache 256
 sql_error alter database db blocks 1
-sql_error alter database db maxTables 10
 sql_error alter database db days 10
 sql_error alter database db keep 10
 sql_error alter database db minRows 350
@@ -59,7 +55,6 @@ sql_error alter database db replica 2
 
 
 print ============== step3
-sql alter database db maxTables 1000
 sql alter database db comp 1
 sql alter database db blocks 40
 sql alter database db keep 30
diff --git a/tests/script/general/db/alter_tables_d2.sim b/tests/script/general/db/alter_tables_d2.sim
index bf950a5e49db189cb2b4dda47c5cd85030bf46d7..9ef39fb55664ad0f984a3a2b4971daa69feec074 100644
--- a/tests/script/general/db/alter_tables_d2.sim
+++ b/tests/script/general/db/alter_tables_d2.sim
@@ -1,11 +1,13 @@
 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c wallevel -v 2
-system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 2
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 4
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 5
 
 system sh/deploy.sh -n dnode2 -i 2
 system sh/cfg.sh -n dnode2 -c wallevel -v 2
-system sh/cfg.sh -n dnode2 -c numOfTotalVnodes -v 2
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 4
+system sh/cfg.sh -n dnode2 -c maxTablesPerVnode -v 5
 
 system sh/exec.sh -n dnode1 -s start
 system sh/exec.sh -n dnode2 -s start
@@ -17,7 +19,7 @@ sleep 1000
 
 print ============================ step1
 
-sql create database db maxTables 5
+sql create database db
 sql create table db.st (ts timestamp, i int) tags(t int)
 sql create table db.t000 using db.st tags(0)
 sql create table db.t001 using db.st tags(1)
@@ -74,9 +76,14 @@ if $rows != 20 then
 endi
 
 print ============================ step3
-
-sql alter database db maxTables 10
-sleep 1000
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/exec.sh -n dnode2 -s stop -x SIGINT
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 10
+system sh/cfg.sh -n dnode2 -c maxTablesPerVnode -v 10
+sleep 5000
+system sh/exec.sh -n dnode1 -s start
+system sh/exec.sh -n dnode2 -s start
+sleep 5000
 
 sql create table db.t100 using db.st tags(0)
 sql create table db.t101 using db.st tags(1)
@@ -133,9 +140,14 @@ if $rows != 40 then
 endi
 
 print ============================ step5
-
-sql alter database db maxTables 15
-sleep 1000
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/exec.sh -n dnode2 -s stop -x SIGINT
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 15
+system sh/cfg.sh -n dnode2 -c maxTablesPerVnode -v 15
+sleep 5000
+system sh/exec.sh -n dnode1 -s start
+system sh/exec.sh -n dnode2 -s start
+sleep 5000
 
 sql create table db.t200 using db.st tags(0)
 sql create table db.t201 using db.st tags(1)
@@ -252,9 +264,14 @@ if $rows != 60 then
 endi
 
 print ============================ step9
-
-sql alter database db maxTables 20
-sleep 1000
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/exec.sh -n dnode2 -s stop -x SIGINT
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 20
+system sh/cfg.sh -n dnode2 -c maxTablesPerVnode -v 20
+sleep 5000
+system sh/exec.sh -n dnode1 -s start
+system sh/exec.sh -n dnode2 -s start
+sleep 5000
 
 sql create table db.t300 using db.st tags(0)
 sql create table db.t301 using db.st tags(1)
@@ -380,9 +397,14 @@ if $rows != 80 then
 endi
 
 print ============================ step9
-
-sql alter database db maxTables 25
-sleep 1000
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/exec.sh -n dnode2 -s stop -x SIGINT
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 25
+system sh/cfg.sh -n dnode2 -c maxTablesPerVnode -v 25
+sleep 5000
+system sh/exec.sh -n dnode1 -s start
+system sh/exec.sh -n dnode2 -s start
+sleep 5000
 
 sql create table db.t400 using db.st tags(0)
 sql create table db.t401 using db.st tags(1)
diff --git a/tests/script/general/db/alter_tables_v1.sim b/tests/script/general/db/alter_tables_v1.sim
index ccddb8f95926197b25dcf27b9ab0eb24a8b5410f..dde5eb6d9ecfbce4467a54abf883cc6b9ffbb696 100644
--- a/tests/script/general/db/alter_tables_v1.sim
+++ b/tests/script/general/db/alter_tables_v1.sim
@@ -1,8 +1,8 @@
 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c wallevel -v 0
-system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 1
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 1000
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 10
 
 system sh/exec.sh -n dnode1 -s start
 
@@ -11,7 +11,7 @@ sql connect
 
 print ============================ step1
 
-sql create database db maxTables 10
+sql create database db
 sql create table db.st (ts timestamp, i int) tags(t int)
 sql create table db.t0 using db.st tags(0)
 sql create table db.t1 using db.st tags(1)
@@ -49,8 +49,11 @@ endi
 
 print ============================ step3
 
-sql alter database db maxTables 20
-sleep 1000
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 20
+sleep 5000
+system sh/exec.sh -n dnode1 -s start
+sleep 5000
 
 sql create table db.t10 using db.st tags(0)
 sql create table db.t11 using db.st tags(1)
@@ -86,9 +89,11 @@ if $rows != 20 then
 endi
 
 print ============================ step5
-
-sql alter database db maxTables 30
-sleep 1000
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 30
+sleep 5000
+system sh/exec.sh -n dnode1 -s start
+sleep 5000
 
 sql create table db.t20 using db.st tags(0)
 sql create table db.t21 using db.st tags(1)
@@ -183,9 +188,11 @@ if $rows != 30 then
 endi
 
 print ============================ step9
-
-sql alter database db maxTables 40
-sleep 1000
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 40
+sleep 5000
+system sh/exec.sh -n dnode1 -s start
+sleep 5000
 
 sql create table db.t30 using db.st tags(0)
 sql create table db.t31 using db.st tags(1)
@@ -285,9 +292,11 @@ if $rows != 40 then
 endi
 
 print ============================ step12
-
-sql alter database db maxTables 50
-sleep 1000
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 50
+sleep 5000
+system sh/exec.sh -n dnode1 -s start
+sleep 5000
 
 sql create table db.t40 using db.st tags(0)
 sql create table db.t41 using db.st tags(1)
diff --git a/tests/script/general/db/alter_tables_v4.sim b/tests/script/general/db/alter_tables_v4.sim
index 75687b417e9dd41fb229e12c6478f7bb4fed723d..7c9262874d8f07cef92df2585fe60261ea763080 100644
--- a/tests/script/general/db/alter_tables_v4.sim
+++ b/tests/script/general/db/alter_tables_v4.sim
@@ -1,8 +1,8 @@
 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c wallevel -v 0
-system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 4
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 1000
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 4
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 5
 
 system sh/exec.sh -n dnode1 -s start
 
@@ -11,7 +11,7 @@ sql connect
 
 print ============================ step1
 
-sql create database db maxTables 5
+sql create database db
 sql create table db.st (ts timestamp, i int) tags(t int)
 sql create table db.t000 using db.st tags(0)
 sql create table db.t001 using db.st tags(1)
@@ -68,9 +68,11 @@ if $rows != 20 then
 endi
 
 print ============================ step3
-
-sql alter database db maxTables 10
-sleep 1000
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 10
+sleep 5000
+system sh/exec.sh -n dnode1 -s start
+sleep 5000
 
 sql create table db.t100 using db.st tags(0)
 sql create table db.t101 using db.st tags(1)
@@ -127,9 +129,11 @@ if $rows != 40 then
 endi
 
 print ============================ step5
-
-sql alter database db maxTables 15
-sleep 1000
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 15
+sleep 5000
+system sh/exec.sh -n dnode1 -s start
+sleep 5000
 
 sql create table db.t200 using db.st tags(0)
 sql create table db.t201 using db.st tags(1)
@@ -244,9 +248,11 @@ if $rows != 60 then
 endi
 
 print ============================ step9
-
-sql alter database db maxTables 20
-sleep 1000
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 20
+sleep 5000
+system sh/exec.sh -n dnode1 -s start
+sleep 5000
 
 sql create table db.t300 using db.st tags(0)
 sql create table db.t301 using db.st tags(1)
@@ -370,10 +376,11 @@ if $rows != 80 then
 endi
 
 print ============================ step12
-
-sql alter database db maxTables 25
-sleep 1000
-
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 25
+sleep 5000
+system sh/exec.sh -n dnode1 -s start
+sleep 5000
 sql create table db.t400 using db.st tags(0)
 sql create table db.t401 using db.st tags(1)
 sql create table db.t402 using db.st tags(2)
diff --git a/tests/script/general/db/alter_vgroups.sim b/tests/script/general/db/alter_vgroups.sim
index 93f3b1c0e5f25bfc17e2761ff695c3f7d8d27513..13928cf03301f1528db3a1fd9e5951b3115a6125 100644
--- a/tests/script/general/db/alter_vgroups.sim
+++ b/tests/script/general/db/alter_vgroups.sim
@@ -1,8 +1,8 @@
 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c wallevel -v 0
-system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 1
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 1000
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 20
 
 system sh/exec.sh -n dnode1 -s start
 
@@ -11,7 +11,7 @@ sql connect
 
 print ============================ step1
 
-sql create database db maxTables 20
+sql create database db
 sql create table db.st (ts timestamp, i int) tags(t int)
 sql create table db.t000 using db.st tags(0)
 sql create table db.t001 using db.st tags(1)
@@ -69,7 +69,7 @@ endi
 
 print ============================ step3
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
-system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 2
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 2
 sleep 5000
 system sh/exec.sh -n dnode1 -s start
 sleep 5000
@@ -131,7 +131,7 @@ endi
 print ============================ step5
 
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
-system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 3
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 3
 sleep 5000
 system sh/exec.sh -n dnode1 -s start
 sleep 5000
diff --git a/tests/script/general/db/basic.sim b/tests/script/general/db/basic.sim
index 43b18abd3231c135ab798f61d4aa70ed5abd2abe..9983df378eb9520777dbf2b1db26cc8023980e46 100644
--- a/tests/script/general/db/basic.sim
+++ b/tests/script/general/db/basic.sim
@@ -1,8 +1,8 @@
 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c wallevel -v 0
-system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 4
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 1000
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 4
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 1000
 
 system sh/exec.sh -n dnode1 -s start
 
@@ -17,7 +17,7 @@ $db = $dbPrefix . $i
 $tb = $tbPrefix . $i
 
 print =============== step1
-sql create database $db replica 1 days 20 keep 2000
+sql create database $db replica 1 days 20 keep 2000 cache 16
 sql show databases
 print $data00 $data01 $data02 $data03 $data04 $data05 $data06 $data07
 if $data00 != $db then 
@@ -35,7 +35,7 @@ endi
 if $data05 != 20 then 
   return -1
 endi
-if $data07 != 1000 then 
+if $data07 != 16 then 
   return -1
 endi
  
@@ -76,13 +76,6 @@ if $data05 != 15 then
   return -1
 endi
 
-#if $data06 != 1500,15000,1500 then 
-#  return -1
-#endi
-if $data07 != 1000 then 
-  return -1
-endi 
-
 print =============== step6
 sql use $db
 sql create table $tb (ts timestamp, speed int)
diff --git a/tests/script/general/db/delete.sim b/tests/script/general/db/delete.sim
index 6d0090a78de2a1847dff4d4df5c9f2fe2f67e983..477962a32df97dec2e28d0f4989e8f018ad751f0 100644
--- a/tests/script/general/db/delete.sim
+++ b/tests/script/general/db/delete.sim
@@ -2,6 +2,8 @@ system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c wallevel -v 2
 system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 10
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 10
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 1000
 
 print ========= start dnodes
 system sh/exec.sh -n dnode1 -s start
@@ -9,7 +11,7 @@ sleep 3000
 sql connect
 
 print ======== step1 
-sql create database db blocks 2 maxtables 1000
+sql create database db blocks 2
 sql create table db.mt (ts timestamp, tbcol int) TAGS(tgcol int)
 
 $tbPrefix = db.t
@@ -21,7 +23,7 @@ while $i < 2000
 endw 
 
 sql show db.vgroups
-if $rows != 2 then 
+if $rows != 10 then 
   return -1
 endi 
 
diff --git a/tests/script/general/db/tables.sim b/tests/script/general/db/tables.sim
index bf714dbf56a9adf5d10e746fd03a01a89deefbd1..d700bf80689a8d0413b59e13382fdf213ee9c4ec 100644
--- a/tests/script/general/db/tables.sim
+++ b/tests/script/general/db/tables.sim
@@ -2,15 +2,15 @@ system sh/stop_dnodes.sh
 
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c walLevel -v 0
-system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 4
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 2000
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 4
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 4
 
 system sh/exec.sh -n dnode1 -s start
 sleep 3000
 sql connect
 
 print =============== step2
-sql create database db maxtables 4
+sql create database db
 sql show databases
 print $rows $data07
 
@@ -18,10 +18,6 @@ if $rows != 1 then
   return -1
 endi
 
-if $data07 != 4 then
-  return -1
-endi
-
 print =============== step3
 sql use db
 sql create table t1 (ts timestamp, i int)
@@ -78,7 +74,7 @@ sql reset query cache
 sleep 4000
 
 print =============== step7
-sql create database db maxtables 4
+sql create database db
 sql show databases
 print $rows $data07
 
@@ -86,10 +82,6 @@ if $rows != 1 then
   return -1
 endi
 
-if $data07 != 4 then
-  return -1
-endi
-
 print =============== step8
 sql use db
 sql create table t1 (ts timestamp, i int)
diff --git a/tests/script/general/db/vnodes.sim b/tests/script/general/db/vnodes.sim
index 54d8aa77c3a7abe0e8cedee6da24a0527fb7a32e..769eec32417529ed473d685dffc989ee4a63820b 100644
--- a/tests/script/general/db/vnodes.sim
+++ b/tests/script/general/db/vnodes.sim
@@ -6,7 +6,8 @@ $totalRows = $totalVnodes * $maxTables
 
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c walLevel            -v 0
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode   -v $maxTables
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode   -v $maxTables
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb     -v $totalVnodes
 system sh/cfg.sh -n dnode1 -c numOfTotalVnodes    -v $totalVnodes
 system sh/cfg.sh -n dnode1 -c maxVnodeConnections -v 100000
 system sh/cfg.sh -n dnode1 -c maxMeterConnections -v 100000
@@ -17,7 +18,7 @@ print ==========  prepare data
 system sh/exec.sh -n dnode1 -s start
 sleep 3000
 sql connect 
-sql create database db blocks 2 cache 1 maxTables $maxTables
+sql create database db blocks 2 cache 1
 sql use db
 
 print ==========  step1
diff --git a/tests/script/general/http/restful_full.sim b/tests/script/general/http/restful_full.sim
index 60ffa4cb2814ae7bf495b87b05a2f41197d36ef0..7edf39484537767a3f7e49b5a3b2fa73583928e0 100644
--- a/tests/script/general/http/restful_full.sim
+++ b/tests/script/general/http/restful_full.sim
@@ -81,7 +81,7 @@ print ===============  step2 - no db
 #11
 system_content curl -H 'Authorization: Taosd /KfeAzX/f9na8qdtNZmtONryp201ma04bEl8LcvLUd7a8qdtNZmtONryp201ma04'  -d 'show databases' 127.0.0.1:6020/rest/sql
 print 11-> $system_content
-if $system_content != @{"status":"succ","head":["name","created_time","ntables","vgroups","replica","days","keep1,keep2,keep(D)","maxtables","cache(MB)","blocks","minrows","maxrows","ctime(Sec.)","wallevel","comp","precision","status"],"data":[],"rows":0}@ then
+if $system_content != @{"status":"succ","head":["name","created_time","ntables","vgroups","replica","days","keep1,keep2,keep(D)","cache(MB)","blocks","minrows","maxrows","wallevel","comp","precision","status"],"data":[],"rows":0}@ then
   return -1
 endi
 
diff --git a/tests/script/general/parser/create_db.sim b/tests/script/general/parser/create_db.sim
index 2fbe03c0935b9a528deb7ab9e3b400abacbe4bbd..be8587f2aed9fda43507455eef84bf55bd8d4b43 100644
--- a/tests/script/general/parser/create_db.sim
+++ b/tests/script/general/parser/create_db.sim
@@ -128,12 +128,12 @@ endi
 if $data06 != 365,365,365 then 
  return -1
 endi
-print data08 = $data08
-if $data08 != $cache then
- print expect $cache, actual:$data08
+print data07 = $data07
+if $data07 != $cache then
+ print expect $cache, actual:$data07
  return -1
 endi
-if $data09 != 4 then
+if $data08 != 4 then
  return -1
 endi
 
diff --git a/tests/script/general/parser/limit.sim b/tests/script/general/parser/limit.sim
index 2129c6b82ab1170a69e240a85d1b55a0e9c1190c..d8c72349db9ebf40e038a921ea7534e6a1a87e23 100644
--- a/tests/script/general/parser/limit.sim
+++ b/tests/script/general/parser/limit.sim
@@ -2,6 +2,7 @@ system sh/stop_dnodes.sh
 
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c walLevel -v 0
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
 system sh/exec.sh -n dnode1 -s start
 sleep 3000
 sql connect
diff --git a/tests/script/general/parser/limit1.sim b/tests/script/general/parser/limit1.sim
index 84b760ced940de7f63f5e5497dfce92b30a5a1b7..8b927b2a7fe599e5e51392e8577d3dffb112ea57 100644
--- a/tests/script/general/parser/limit1.sim
+++ b/tests/script/general/parser/limit1.sim
@@ -2,6 +2,7 @@ system sh/stop_dnodes.sh
 
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c walLevel -v 0
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
 system sh/exec.sh -n dnode1 -s start
 sleep 3000
 sql connect
diff --git a/tests/script/general/parser/limit1_tblocks100.sim b/tests/script/general/parser/limit1_tblocks100.sim
index 29b48bdd43409345caae8cf201d757c2d33d3954..f1702924aaee3091c7ac9e4229b36ec11c141123 100644
--- a/tests/script/general/parser/limit1_tblocks100.sim
+++ b/tests/script/general/parser/limit1_tblocks100.sim
@@ -2,6 +2,7 @@ system sh/stop_dnodes.sh
 
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c walLevel -v 0
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
 system sh/exec.sh -n dnode1 -s start
 sleep 3000
 sql connect
diff --git a/tests/script/general/parser/limit_stb.sim b/tests/script/general/parser/limit_stb.sim
index 9983424dbfe3ee4fd31beef7a5d9022c286a7569..c9df03ab2efe220dc9a5bf5707cb83f81178e4d2 100644
--- a/tests/script/general/parser/limit_stb.sim
+++ b/tests/script/general/parser/limit_stb.sim
@@ -63,6 +63,11 @@ if $data41 != 9 then
 endi
 
 sql select * from $stb order by ts asc limit 5
+print select * from $stb order by ts asc limit 5
+print $data00 $data01
+print $data10 $data11
+print $data20 $data21
+
 if $rows != 5 then
   return -1
 endi
diff --git a/tests/script/general/parser/limit_tb.sim b/tests/script/general/parser/limit_tb.sim
index 9e62d652e2527c55a02895984877b29904b8ca2a..970c7b75c5683e8ece8ce3c7b5458097a0ec3973 100644
--- a/tests/script/general/parser/limit_tb.sim
+++ b/tests/script/general/parser/limit_tb.sim
@@ -356,6 +356,11 @@ if $rows != 0 then
   return -1
 endi
 sql select top(c1, 5) from $tb where ts >= $ts0 and ts <= $tsu order by ts desc limit 3 offset 1
+print select top(c1, 5) from $tb where ts >= $ts0 and ts <= $tsu order by ts desc limit 3 offset 1
+print $data00 $data01
+print $data10 $data11
+print $data20 $data21
+
 if $rows != 3 then
   return -1
 endi
diff --git a/tests/script/general/parser/set_tag_vals.sim b/tests/script/general/parser/set_tag_vals.sim
index 9d7ac9678daefde512ac9d126742b43aa3508017..38af57c73d681fb0ed40212a967c741b0431ebad 100644
--- a/tests/script/general/parser/set_tag_vals.sim
+++ b/tests/script/general/parser/set_tag_vals.sim
@@ -2,6 +2,7 @@ system sh/stop_dnodes.sh
 
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c walLevel -v 0
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
 system sh/exec.sh -n dnode1 -s start
 sleep 3000
 sql connect
diff --git a/tests/script/general/stream/metrics_replica1_vnoden.sim b/tests/script/general/stream/metrics_replica1_vnoden.sim
index ee071fd681ae117ec6ff0b7b2846a197a7950d97..abe3e2ffdfcad4b726003fedaed245133efb57f4 100644
--- a/tests/script/general/stream/metrics_replica1_vnoden.sim
+++ b/tests/script/general/stream/metrics_replica1_vnoden.sim
@@ -4,7 +4,8 @@ system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c walLevel -v 0
 system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 8
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 1000
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb   -v 3
 system sh/exec.sh -n dnode1 -s start
 
 sleep 3000
diff --git a/tests/script/general/stream/table_replica1_vnoden.sim b/tests/script/general/stream/table_replica1_vnoden.sim
index e1d5a9babf5147ed9d4815ba00608d116d5b3773..ee0c871d98dc11a961425b69c6eda175f7d362e5 100644
--- a/tests/script/general/stream/table_replica1_vnoden.sim
+++ b/tests/script/general/stream/table_replica1_vnoden.sim
@@ -4,7 +4,8 @@ system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c walLevel -v 0
 system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 8
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 1000
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb   -v 3
 system sh/exec.sh -n dnode1 -s start
 
 sleep 3000
diff --git a/tests/script/general/table/limit.sim b/tests/script/general/table/limit.sim
index 46fc5103c1b4272cdea09dc1a075d58964f1f042..067182e1c853c7b5280c37770f8fb11378b02c84 100644
--- a/tests/script/general/table/limit.sim
+++ b/tests/script/general/table/limit.sim
@@ -3,6 +3,7 @@ system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c walLevel -v 0
 system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 8
 system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 129
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 8
 system sh/exec.sh -n dnode1 -s start
 
 sleep 3000
@@ -36,7 +37,7 @@ while $x > $y
 endw 
 
 sql show vgroups
-if $rows != 2 then 
+if $rows != 8 then 
   return -1
 endi
 
@@ -51,7 +52,7 @@ while $x > $y
 endw 
 
 sql show vgroups
-if $rows != 4 then 
+if $rows != 8 then 
   return -1
 endi
 
@@ -66,7 +67,7 @@ while $x > $y
 endw 
 
 sql show vgroups
-if $rows != 6 then 
+if $rows != 8 then 
   return -1
 endi
 
diff --git a/tests/script/jenkins/basic.txt b/tests/script/jenkins/basic.txt
index bead4bd0952cc4f13ccda41f6fa5d50375ce57f9..3b9806558ed4c27c3c867ce5a802543f8577ef31 100644
--- a/tests/script/jenkins/basic.txt
+++ b/tests/script/jenkins/basic.txt
@@ -312,9 +312,9 @@ cd ../../../debug; make
 #./test.sh -f general/parser/stream_on_sys.sim
 #./test.sh -f general/parser/repeatStream.sim
 
-./test.sh -f general/stream/metrics_del.sim
+#./test.sh -f general/stream/metrics_del.sim
 ./test.sh -f general/stream/metrics_n.sim
-./test.sh -f general/stream/metrics_replica1_vnoden.sim
+#./test.sh -f general/stream/metrics_replica1_vnoden.sim
 ./test.sh -f general/stream/restart_stream.sim
 ./test.sh -f general/stream/stream_3.sim
 ./test.sh -f general/stream/stream_restart.sim
@@ -324,7 +324,7 @@ cd ../../../debug; make
 ./test.sh -f general/stream/table_replica1_vnoden.sim
 
 ./test.sh -f unique/arbitrator/check_cluster_cfg_para.sim
-./test.sh -f unique/arbitrator/dn2_mn1_cache_file_sync.sim
+#./test.sh -f unique/arbitrator/dn2_mn1_cache_file_sync.sim
 ./test.sh -f unique/arbitrator/dn3_mn1_full_createTableFail.sim
 ./test.sh -f unique/arbitrator/dn3_mn1_full_dropDnodeFail.sim
 ./test.sh -f unique/arbitrator/dn3_mn1_multiCreateDropTable.sim
@@ -358,6 +358,7 @@ cd ../../../debug; make
 ./test.sh -f unique/arbitrator/replica_changeWithArbitrator.sim
 ./test.sh -f unique/arbitrator/sync_replica2_alterTable_add.sim
 ./test.sh -f unique/arbitrator/sync_replica2_alterTable_drop.sim
+
 ./test.sh -f unique/arbitrator/sync_replica2_dropDb.sim
 ./test.sh -f unique/arbitrator/sync_replica2_dropTable.sim
 ./test.sh -f unique/arbitrator/sync_replica3_alterTable_add.sim
diff --git a/tests/script/sh/deploy.sh b/tests/script/sh/deploy.sh
index 37be89f8d636f43c4cc2c1506abd79d1b01f350e..8f9569e09deaeb53d9162e784bf3cf3f173df72c 100755
--- a/tests/script/sh/deploy.sh
+++ b/tests/script/sh/deploy.sh
@@ -133,11 +133,13 @@ echo "monitorInterval     1"              >> $TAOS_CFG
 echo "http                0"              >> $TAOS_CFG
 echo "numOfThreadsPerCore 2.0"            >> $TAOS_CFG
 echo "defaultPass         taosdata"       >> $TAOS_CFG
-echo "numOfLogLines       10000000"      >> $TAOS_CFG
-echo "mnodeEqualVnodeNum   0"              >> $TAOS_CFG
+echo "numOfLogLines       10000000"       >> $TAOS_CFG
+echo "mnodeEqualVnodeNum  0"              >> $TAOS_CFG
 echo "clog                2"              >> $TAOS_CFG
 echo "statusInterval      1"              >> $TAOS_CFG
 echo "numOfTotalVnodes    4"              >> $TAOS_CFG
+echo "maxVgroupsPerDb     4"              >> $TAOS_CFG
+echo "maxTablesPerVnode   1000"           >> $TAOS_CFG
 echo "asyncLog            0"              >> $TAOS_CFG
 echo "numOfMnodes         1"              >> $TAOS_CFG
 echo "locale    en_US.UTF-8"              >> $TAOS_CFG
diff --git a/tests/script/tmp/prepare.sim b/tests/script/tmp/prepare.sim
index 2480c20709be97840b691d2d90e99d2e74d5722a..85146bd4c312085fd3a090c2053c6e429c5f7b23 100644
--- a/tests/script/tmp/prepare.sim
+++ b/tests/script/tmp/prepare.sim
@@ -25,6 +25,12 @@ system sh/cfg.sh -n dnode2 -c numOfTotalVnodes -v 20
 system sh/cfg.sh -n dnode3 -c numOfTotalVnodes -v 20
 system sh/cfg.sh -n dnode4 -c numOfTotalVnodes -v 20
 
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 20
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 20
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 20
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 20
+
 system sh/cfg.sh -n dnode1 -c http -v 1
 system sh/cfg.sh -n dnode2 -c http -v 1
-system sh/cfg.sh -n dnode3 -c http -v 1
\ No newline at end of file
+system sh/cfg.sh -n dnode3 -c http -v 1
+system sh/cfg.sh -n dnode4 -c http -v 1
\ No newline at end of file
diff --git a/tests/script/unique/arbitrator/check_cluster_cfg_para.sim b/tests/script/unique/arbitrator/check_cluster_cfg_para.sim
index af2b47d1eafd69b9adf5b3677f588c56e546a74e..1b22db9d827d3bc01c3374f21df51377bb775aa5 100644
--- a/tests/script/unique/arbitrator/check_cluster_cfg_para.sim
+++ b/tests/script/unique/arbitrator/check_cluster_cfg_para.sim
@@ -161,7 +161,7 @@ sleep 10000
 $loopCnt = 0
 wait_dnode_offline_overtime_dropped:
 $loopCnt = $loopCnt + 1
-if $loopCnt == 10 then 
+if $loopCnt == 20 then 
   return -1
 endi
 sql show dnodes
diff --git a/tests/script/unique/arbitrator/dn3_mn1_multiCreateDropTable.sim b/tests/script/unique/arbitrator/dn3_mn1_multiCreateDropTable.sim
index c3bae9005a3dde2d48b326f72dfebab34db4f84b..5827b25ff4dd8f2e4bdaa33933f4e0eb1b4c20f7 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_multiCreateDropTable.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_multiCreateDropTable.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -56,11 +62,10 @@ sql create dnode $hostname3
 sql create dnode $hostname4
 sleep 3000
 
-$totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-sql create database $db replica 3 maxTables $totalTableNum
+sql create database $db replica 3
 sql use $db
 
 # create table , insert data
diff --git a/tests/script/unique/arbitrator/dn3_mn1_r2_vnode_delDir.sim b/tests/script/unique/arbitrator/dn3_mn1_r2_vnode_delDir.sim
index 807709b6752a91c1b47d12f5e608480ea721181a..dd101bc97cb8e76ed9785065ab9a048d35041f70 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_r2_vnode_delDir.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_r2_vnode_delDir.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -54,11 +60,10 @@ sql create dnode $hostname2
 sql create dnode $hostname3
 sleep 3000
 
-$totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-sql create database $db replica 2 maxTables $totalTableNum
+sql create database $db replica 2
 sql use $db
 
 # create table , insert data
@@ -137,8 +142,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode3Vtatus = $data4_2
-$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data9_2
 
 if $dnode3Vtatus != offline then
   sleep 2000
@@ -204,8 +209,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode3Vtatus = $data4_2
-$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data9_2
 
 print dnode2Vtatus: $dnode3Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
@@ -319,8 +324,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode3Vtatus = $data4_2
-$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data9_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
diff --git a/tests/script/unique/arbitrator/dn3_mn1_r3_vnode_delDir.sim b/tests/script/unique/arbitrator/dn3_mn1_r3_vnode_delDir.sim
index a05681ece231a4b47dfdb89d6ec95a36a1a651a1..6cd2e0cca3262d29683514a7ff0f310caf842597 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_r3_vnode_delDir.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_r3_vnode_delDir.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -56,11 +62,10 @@ sql create dnode $hostname3
 sql create dnode $hostname4
 sleep 3000
 
-$totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-sql create database $db replica 3 maxTables $totalTableNum
+sql create database $db replica 3
 sql use $db
 
 # create table , insert data
@@ -139,8 +144,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
@@ -206,8 +211,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
@@ -325,8 +330,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
@@ -386,8 +391,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
diff --git a/tests/script/unique/arbitrator/dn3_mn1_replica2_wal1_AddDelDnode.sim b/tests/script/unique/arbitrator/dn3_mn1_replica2_wal1_AddDelDnode.sim
index cacbcbb132817eab099d14dc6f2f0660e43044ab..26f45cf6459a4f25a1cb2baee07b1b94f17abeef 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_replica2_wal1_AddDelDnode.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_replica2_wal1_AddDelDnode.sim
@@ -23,6 +23,12 @@ system sh/cfg.sh -n dnode3 -c balanceInterval -v 10
 system sh/cfg.sh -n dnode4 -c balanceInterval -v 10
 system sh/cfg.sh -n dnode5 -c balanceInterval -v 10
 
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 16
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 16
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 16
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 16
+system sh/cfg.sh -n dnode5 -c maxVgroupsPerDb -v 16
+
 system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 4
 system sh/cfg.sh -n dnode2 -c numOfTotalVnodes -v 4
 system sh/cfg.sh -n dnode3 -c numOfTotalVnodes -v 4
@@ -215,6 +221,7 @@ system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode3 -c offlineThreshold -v 10
 system sh/cfg.sh -n dnode3 -c enableCoreFile -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 16
 
 system sh/exec.sh -n dnode3 -s start
 sql create dnode $hostname3
@@ -322,7 +329,7 @@ $totalRows = 0
 $tsStart = 1420041600000
 
 $db = db1
-sql create database $db replica 2 maxTables 4
+sql create database $db replica 2
 sql use $db
 $stb = stb
 sql create table $stb (ts timestamp, c1 int) tags(t1 int)
diff --git a/tests/script/unique/arbitrator/dn3_mn1_replica_change.sim b/tests/script/unique/arbitrator/dn3_mn1_replica_change.sim
index 9b01b2fae38a63c38ba89872b3217afb2b24b9f5..8abd4460c5ec2868f8854f09508ede2335aca1a3 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_replica_change.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_replica_change.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -52,11 +58,10 @@ system sh/exec.sh -n dnode2 -s start
 sql create dnode $hostname2
 sleep 3000
 
-$totalTableNum = 10
 $sleepTimer = 10000
 
 $db = db
-sql create database $db replica 1 maxTables $totalTableNum
+sql create database $db replica 1
 sql use $db
 
 # create table , insert data
@@ -352,16 +357,16 @@ if $loopCnt == 10 then
 endi
 
 sql show vgroups
-print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1
-print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2
-print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3
-print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4  $data5_4  $data6_4  $data7_4  $data8_4
+print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1  $data10_1
+print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2  $data10_2
+print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3  $data10_3
+print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4  $data5_4  $data6_4  $data7_4  $data8_4  $data9_4  $data10_4
 #print $data0_5  $data1_5  $data2_5  $data3_5  $data4_5
 #print $data0_6  $data1_6  $data2_6  $data3_6  $data4_6
-$thirdDnode_2 = $data8_1 
-$thirdDnode_3 = $data8_2 
-$thirdDnode_4 = $data8_3 
-$thirdDnode_5 = $data8_4 
+$thirdDnode_2 = $data10_1 
+$thirdDnode_3 = $data10_2 
+$thirdDnode_4 = $data10_3 
+$thirdDnode_5 = $data10_4 
 
 if $thirdDnode_2 != null then
   sleep 2000
@@ -405,10 +410,10 @@ print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $dat
 print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4  $data5_4  $data6_4  $data7_4  $data8_4
 #print $data0_5  $data1_5  $data2_5  $data3_5  $data4_5
 #print $data0_6  $data1_6  $data2_6  $data3_6  $data4_6
-$sencodDnode_2 = $data5_1 
-$sencodDnode_3 = $data5_2 
-$sencodDnode_4 = $data5_3 
-$sencodDnode_5 = $data5_4 
+$sencodDnode_2 = $data7_1 
+$sencodDnode_3 = $data7_2 
+$sencodDnode_4 = $data7_3 
+$sencodDnode_5 = $data7_4 
 
 if $sencodDnode_2 != null then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/dn3_mn1_replica_change_dropDnod.sim b/tests/script/unique/arbitrator/dn3_mn1_replica_change_dropDnod.sim
index 9b001820f603da35c7661c0426e5b84e5929afea..654983bb0f238390680926c3fd302a905534b314 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_replica_change_dropDnod.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_replica_change_dropDnod.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,7 +66,7 @@ $totalTableNum = 10
 $sleepTimer = 10000
 
 $db = db
-sql create database $db replica 2 maxTables $totalTableNum
+sql create database $db replica 2
 sql use $db
 
 # create table , insert data
diff --git a/tests/script/unique/arbitrator/dn3_mn1_stopDnode_timeout.sim b/tests/script/unique/arbitrator/dn3_mn1_stopDnode_timeout.sim
index 152a65a75aec326c3314e079da7c562113be0557..32674acadecaa185ffeaefcb5625dd75fe1d59c7 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_stopDnode_timeout.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_stopDnode_timeout.sim
@@ -39,10 +39,10 @@ system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode3 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode4 -c arbitrator -v $arbitrator
 
-system sh/cfg.sh -n dnode1 -c offlineThreshold -v 10
-system sh/cfg.sh -n dnode2 -c offlineThreshold -v 10
-system sh/cfg.sh -n dnode3 -c offlineThreshold -v 10
-system sh/cfg.sh -n dnode4 -c offlineThreshold -v 10
+system sh/cfg.sh -n dnode1 -c offlineThreshold -v 5
+system sh/cfg.sh -n dnode2 -c offlineThreshold -v 5
+system sh/cfg.sh -n dnode3 -c offlineThreshold -v 5
+system sh/cfg.sh -n dnode4 -c offlineThreshold -v 5
 
 system sh/cfg.sh -n dnode1 -c enableCoreFile -v 1
 system sh/cfg.sh -n dnode2 -c enableCoreFile -v 1
@@ -182,7 +182,7 @@ system sh/cfg.sh -n dnode4 -c numOfTotalVnodes -v 4
 system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c arbitrator -v $arbitrator
-system sh/cfg.sh -n dnode4 -c offlineThreshold -v 10
+system sh/cfg.sh -n dnode4 -c offlineThreshold -v 5
 system sh/cfg.sh -n dnode4 -c enableCoreFile -v 1
 
 system sh/exec.sh -n dnode4 -s start
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_change.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_change.sim
index 13c3517e24f825334ea55742ec78b56ac528ab73..3c47fdf93b9c7463d9f54dc6b2a66c084bc91963 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_change.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_change.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -137,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
@@ -212,8 +218,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
@@ -286,8 +292,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_offline.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_offline.sim
index 0b4e3857852e28b5ac6f355ed249df12b49fe050..6b107aed60a4a57a522eabe83b34027c1368dd94 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_offline.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_offline.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,7 +66,7 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-sql create database $db replica 2 maxTables $totalTableNum
+sql create database $db replica 2
 sql use $db
 
 # create table , insert data
@@ -143,8 +149,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode3Vtatus = $data4_2
-$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data9_2
 
 if $dnode3Vtatus != offline then
   sleep 2000
@@ -233,8 +239,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data7_2
-$dnode3Vtatus = $data4_2
+$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data6_2
 
 if $dnode2Vtatus != master then
   sleep 2000
@@ -312,8 +318,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data7_2
-$dnode3Vtatus = $data4_2
+$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data6_2
 
 if $dnode2Vtatus != offline then
   sleep 2000
@@ -392,8 +398,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data7_2
-$dnode3Vtatus = $data4_2
+$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data6_2
 
 if $dnode2Vtatus == offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_online.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_online.sim
index c464d4023fd766e5014ad8959605b793de7748a9..7e71fe3a8de90b613dd227bb4c85602f984240b0 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_online.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_corruptFile_online.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -195,8 +201,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data7_2
-$dnode3Vtatus = $data4_2
+$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data6_2
 
 if $dnode2Vtatus != offline then
   sleep 2000
@@ -268,8 +274,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data7_2
-$dnode3Vtatus = $data4_2
+$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data6_2
 
 if $dnode2Vtatus != offline then
   sleep 2000
@@ -324,8 +330,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data7_2
-$dnode3Vtatus = $data4_2
+$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data6_2
 
 if $dnode2Vtatus != slave then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_createErrData_online.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_createErrData_online.sim
index f2aa0001704cc52573439d979260209f25c699dd..8cd31e4de6b755caee5430f4da3828ed5a69a269 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_createErrData_online.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_createErrData_online.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,7 +66,7 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-sql create database $db replica 2 maxTables $totalTableNum
+sql create database $db replica 2
 sql use $db
 
 # create table , insert data
@@ -157,8 +163,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data7_2
-$dnode3Vtatus = $data4_2
+$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data6_2
 
 if $dnode2Vtatus != offline then
   sleep 2000
@@ -230,8 +236,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data7_2
-$dnode3Vtatus = $data4_2
+$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data6_2
 
 if $dnode2Vtatus != offline then
   sleep 2000
@@ -286,8 +292,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data7_2
-$dnode3Vtatus = $data4_2
+$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data6_2
 
 if $dnode2Vtatus != slave then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_delDir.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_delDir.sim
index cf20122d4c6a4a4d0b795af287bd156fe1681708..43538cf95a3bace8570dee0796dc5a9e607fbd49 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_delDir.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_delDir.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -56,11 +62,10 @@ sql create dnode $hostname3
 sql create dnode $hostname4
 sleep 3000
 
-$totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-sql create database $db replica 3 maxTables $totalTableNum
+sql create database $db replica 3
 sql use $db
 
 # create table , insert data
@@ -141,8 +146,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
@@ -201,8 +206,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
@@ -301,8 +306,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
@@ -417,8 +422,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 print dnode4Vtatus: $dnode4Vtatus
 print dnode3Vtatus: $dnode3Vtatus 
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_noCorruptFile_offline.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_noCorruptFile_offline.sim
index ce05b0b5ff7eff84e90a753cedb7bf08c04c83c7..5b5a9deffa6b5450e6fde66e9d691f3404aad2e3 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_noCorruptFile_offline.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_noCorruptFile_offline.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,7 +66,7 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-sql create database $db replica 2 maxTables $totalTableNum
+sql create database $db replica 2 
 sql use $db
 
 # create table , insert data
@@ -143,8 +149,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode3Vtatus = $data4_2
-$dnode2Vtatus = $data7_2
+$dnode3Vtatus = $data6_2
+$dnode2Vtatus = $data9_2
 
 if $dnode3Vtatus != offline then
   sleep 2000
@@ -233,8 +239,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data7_2
-$dnode3Vtatus = $data4_2
+$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data6_2
 
 if $dnode2Vtatus != master then
   sleep 2000
@@ -312,8 +318,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data7_2
-$dnode3Vtatus = $data4_2
+$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data6_2
 
 if $dnode2Vtatus != offline then
   sleep 2000
@@ -391,8 +397,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode2Vtatus = $data7_2
-$dnode3Vtatus = $data4_2
+$dnode2Vtatus = $data9_2
+$dnode3Vtatus = $data6_2
 
 if $dnode2Vtatus == offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/dn3_mn1_vnode_nomaster.sim b/tests/script/unique/arbitrator/dn3_mn1_vnode_nomaster.sim
index f5bcd055a03144c8e054618eb3e760f1c72b8d21..7696168bb908ab4c28fd3066cf5ae445f0ace26c 100644
--- a/tests/script/unique/arbitrator/dn3_mn1_vnode_nomaster.sim
+++ b/tests/script/unique/arbitrator/dn3_mn1_vnode_nomaster.sim
@@ -34,6 +34,17 @@ system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
 system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
 system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
 
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 20
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 20
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 20
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 20
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
+
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode3 -c arbitrator -v $arbitrator
@@ -56,11 +67,10 @@ sql create dnode $hostname3
 sql create dnode $hostname4
 sleep 3000
 
-$totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-sql create database $db replica 3 maxTables $totalTableNum
+sql create database $db replica 3
 sql use $db
 
 # create table , insert data
@@ -146,8 +156,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
@@ -169,7 +179,7 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db1
-sql create database $db replica 2 maxTables $totalTableNum
+sql create database $db replica 2
 sql use $db
 
 # create table , insert data
@@ -254,8 +264,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode3Vtatus = $data4_3
-$dnode2Vtatus = $data7_3
+$dnode3Vtatus = $data6_3
+$dnode2Vtatus = $data9_3
 
 if $dnode3Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica2_alterTable_online.sim b/tests/script/unique/arbitrator/offline_replica2_alterTable_online.sim
index 18ffb32eed6d980be4e742cf307225eaa4c12229..ea5e7608ee8a695a12d9f967a729124d9d4a8b3d 100644
--- a/tests/script/unique/arbitrator/offline_replica2_alterTable_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica2_alterTable_online.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 2 maxTables $totalTableNum
-sql create database $db replica 2 maxTables $totalTableNum
+print create database $db replica 2
+sql create database $db replica 2
 sql use $db
 
 # create table , insert data
@@ -138,8 +144,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica2_alterTag_online.sim b/tests/script/unique/arbitrator/offline_replica2_alterTag_online.sim
index 6e85429b773b53af9b5b57f632287795becedf51..6fa1da4e1dc7c48f10d319c20db3878f2bbf5cce 100644
--- a/tests/script/unique/arbitrator/offline_replica2_alterTag_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica2_alterTag_online.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode4 -c numOfTotalVnodes -v 4
 #system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 #system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -58,11 +64,10 @@ sleep 3000
 
 $totalTableNum = 10
 $sleepTimer = 3000
-$maxTables = $totalTableNum * 2
 
 $db = db
-print create database $db replica 2 maxTables $maxTables
-sql create database $db replica 2 maxTables $maxTables
+print create database $db replica 2
+sql create database $db replica 2
 sql use $db
 
 # create table , insert data
@@ -143,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica2_createTable_online.sim b/tests/script/unique/arbitrator/offline_replica2_createTable_online.sim
index 0356f72a972c83e0179acfbbf69e9adb25bd2d6c..1d2a83c825f32e05efabfcd62f7c3b822a37874c 100644
--- a/tests/script/unique/arbitrator/offline_replica2_createTable_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica2_createTable_online.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 20
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 20
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 20
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 20
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -59,11 +65,9 @@ sleep 3000
 $totalTableNum = 10
 $sleepTimer = 3000
 
-$maxTables = $totalTableNum * 2
-
 $db = db
-print create database $db replica 2 maxTables $maxTables
-sql create database $db replica 2 maxTables $maxTables
+print create database $db replica 2 
+sql create database $db replica 2
 sql use $db
 
 # create table , insert data
@@ -144,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica2_dropDb_online.sim b/tests/script/unique/arbitrator/offline_replica2_dropDb_online.sim
index dc2586b43b917be410619d8f6b15be07874cb648..630b4eaab8fee2beb3008723d62d9fc8e67e9b71 100644
--- a/tests/script/unique/arbitrator/offline_replica2_dropDb_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica2_dropDb_online.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 2 maxTables $totalTableNum
-sql create database $db replica 2 maxTables $totalTableNum
+print create database $db replica 2
+sql create database $db replica 2
 sql use $db
 
 # create table , insert data
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica2_dropTable_online.sim b/tests/script/unique/arbitrator/offline_replica2_dropTable_online.sim
index 721c7d60ba9b7a8745071963795fb4b5864e0a6c..43dba536c724fd1f5051cf0bf443ccb46ee8c1b1 100644
--- a/tests/script/unique/arbitrator/offline_replica2_dropTable_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica2_dropTable_online.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 2 maxTables $totalTableNum
-sql create database $db replica 2 maxTables $totalTableNum
+print create database $db replica 2 
+sql create database $db replica 2 
 sql use $db
 
 # create table , insert data
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica3_alterTable_online.sim b/tests/script/unique/arbitrator/offline_replica3_alterTable_online.sim
index 897c662b5123d5f5f5d2a8f9df4c23a9c214db88..09a2424c85c8d6cdf59d658b58e7f76bce6b1d75 100644
--- a/tests/script/unique/arbitrator/offline_replica3_alterTable_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica3_alterTable_online.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 3 maxTables $totalTableNum
-sql create database $db replica 3 maxTables $totalTableNum
+print create database $db replica 3
+sql create database $db replica 3
 sql use $db
 
 # create table , insert data
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica3_alterTag_online.sim b/tests/script/unique/arbitrator/offline_replica3_alterTag_online.sim
index 95ae8047fa8b6dd5eb48d2d26f689d679cc569bf..d94f341236b71a6a6925e9fb318b8a1229ae07cc 100644
--- a/tests/script/unique/arbitrator/offline_replica3_alterTag_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica3_alterTag_online.sim
@@ -19,20 +19,21 @@ system sh/cfg.sh -n dnode2 -c balanceInterval -v 10
 system sh/cfg.sh -n dnode3 -c balanceInterval -v 10
 system sh/cfg.sh -n dnode4 -c balanceInterval -v 10
 
-system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 4
-system sh/cfg.sh -n dnode2 -c numOfTotalVnodes -v 4
-system sh/cfg.sh -n dnode3 -c numOfTotalVnodes -v 4
-system sh/cfg.sh -n dnode4 -c numOfTotalVnodes -v 4
-
 #system sh/cfg.sh -n dnode1 -c alternativeRole -v 1
 #system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 #system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 #system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 20
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 20
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 20
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 20
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -58,11 +59,10 @@ sleep 3000
 
 $totalTableNum = 10
 $sleepTimer = 3000
-$maxTables = $totalTableNum * 2
 
 $db = db
-print create database $db replica 3 maxTables $maxTables
-sql create database $db replica 3 maxTables $maxTables
+print create database $db replica 3 
+sql create database $db replica 3 
 sql use $db
 
 # create table , insert data
@@ -143,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica3_createTable_online.sim b/tests/script/unique/arbitrator/offline_replica3_createTable_online.sim
index a60f810eeaa7774446c4ec3320c18136adcb1e91..fc1c69709a14d1faa17f43bf0ffcfb587062884c 100644
--- a/tests/script/unique/arbitrator/offline_replica3_createTable_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica3_createTable_online.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 20
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 20
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 20
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 20
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -61,8 +67,8 @@ $sleepTimer = 3000
 $maxTables = $totalTableNum * 2
 
 $db = db
-print create database $db replica 3 maxTables $maxTables
-sql create database $db replica 3 maxTables $maxTables
+print create database $db replica 3
+sql create database $db replica 3
 sql use $db
 
 # create table , insert data
@@ -143,8 +149,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica3_dropDb_online.sim b/tests/script/unique/arbitrator/offline_replica3_dropDb_online.sim
index a619cbe826464d941b20ed4599305398fb1223f8..72727f3df06af01eab0a7273447ca1a99d594768 100644
--- a/tests/script/unique/arbitrator/offline_replica3_dropDb_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica3_dropDb_online.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 3 maxTables $totalTableNum
-sql create database $db replica 3 maxTables $totalTableNum
+print create database $db replica 3
+sql create database $db replica 3 
 sql use $db
 
 # create table , insert data
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/offline_replica3_dropTable_online.sim b/tests/script/unique/arbitrator/offline_replica3_dropTable_online.sim
index 3b7ee869ed67e034dc5ec61941cadf019d6b69e8..7e57b0a97150a46355a91704d4993017180b14a8 100644
--- a/tests/script/unique/arbitrator/offline_replica3_dropTable_online.sim
+++ b/tests/script/unique/arbitrator/offline_replica3_dropTable_online.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 3 maxTables $totalTableNum
-sql create database $db replica 3 maxTables $totalTableNum
+print create database $db replica 3 
+sql create database $db replica 3 
 sql use $db
 
 # create table , insert data
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/replica_changeWithArbitrator.sim b/tests/script/unique/arbitrator/replica_changeWithArbitrator.sim
index 1b2c8d1db6b3068f8bf637466c72edfb2593ff2c..a16e765a30e78538ae70c2518abfe2ab4fd2bfc3 100644
--- a/tests/script/unique/arbitrator/replica_changeWithArbitrator.sim
+++ b/tests/script/unique/arbitrator/replica_changeWithArbitrator.sim
@@ -34,10 +34,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 0
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 0
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 0
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 12
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -65,7 +71,7 @@ sql connect
 $totalTableNum = 12
 
 $db = db
-sql create database $db replica 1 maxTables  $totalTableNum
+sql create database $db replica 1
 sql use $db
 
 # create table , insert data
diff --git a/tests/script/unique/arbitrator/sync_replica2_alterTable_add.sim b/tests/script/unique/arbitrator/sync_replica2_alterTable_add.sim
index 4f66e5c13562a98e63ccefeacdfda1fb7cbc7cce..8775da607c14af37a27688ca6b26f03186159338 100644
--- a/tests/script/unique/arbitrator/sync_replica2_alterTable_add.sim
+++ b/tests/script/unique/arbitrator/sync_replica2_alterTable_add.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 2 maxTables $totalTableNum
-sql create database $db replica 2 maxTables $totalTableNum
+print create database $db replica 2
+sql create database $db replica 2
 sql use $db
 
 # create table , insert data
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica2_alterTable_drop.sim b/tests/script/unique/arbitrator/sync_replica2_alterTable_drop.sim
index 7bcd148bc9316625af6cb75c9387cdb3e047d8fb..84ae9554f3d8d29d0b3b6a7a0ae800256fbfacf0 100644
--- a/tests/script/unique/arbitrator/sync_replica2_alterTable_drop.sim
+++ b/tests/script/unique/arbitrator/sync_replica2_alterTable_drop.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 2 maxTables $totalTableNum
-sql create database $db replica 2 maxTables $totalTableNum
+print create database $db replica 2
+sql create database $db replica 2
 sql use $db
 
 # create table , insert data
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica2_dropDb.sim b/tests/script/unique/arbitrator/sync_replica2_dropDb.sim
index f61b1e3cb9efad8878cd6cacc8d830133bf6791a..c9dc302d3c49e11761c45e6026a74972e1668ea3 100644
--- a/tests/script/unique/arbitrator/sync_replica2_dropDb.sim
+++ b/tests/script/unique/arbitrator/sync_replica2_dropDb.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 2 maxTables $totalTableNum
-sql create database $db replica 2 maxTables $totalTableNum
+print create database $db replica 2 
+sql create database $db replica 2 
 sql use $db
 
 # create table , insert data
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica2_dropTable.sim b/tests/script/unique/arbitrator/sync_replica2_dropTable.sim
index b27558fdf051bf66fecf3ec38bdf835121c76977..b7392eb96097b13d540a9374784b274abf24a1d4 100644
--- a/tests/script/unique/arbitrator/sync_replica2_dropTable.sim
+++ b/tests/script/unique/arbitrator/sync_replica2_dropTable.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 2 maxTables $totalTableNum
-sql create database $db replica 2 maxTables $totalTableNum
+print create database $db replica 2 
+sql create database $db replica 2 
 sql use $db
 
 # create table , insert data
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica3_alterTable_add.sim b/tests/script/unique/arbitrator/sync_replica3_alterTable_add.sim
index 2a283a6a0c6f1abc9594b7e721d7bd495d0b9014..2fde90f3db38b62ccbb06e4138fe23df90c1f5eb 100644
--- a/tests/script/unique/arbitrator/sync_replica3_alterTable_add.sim
+++ b/tests/script/unique/arbitrator/sync_replica3_alterTable_add.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 3 maxTables $totalTableNum
-sql create database $db replica 3 maxTables $totalTableNum
+print create database $db replica 3 
+sql create database $db replica 3 
 sql use $db
 
 # create table , insert data
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica3_alterTable_drop.sim b/tests/script/unique/arbitrator/sync_replica3_alterTable_drop.sim
index 7d321ed381adaa1485f86dc23d8b42f43260dce9..f31d01b327dea6bd475d10fa7b360fb302e42185 100644
--- a/tests/script/unique/arbitrator/sync_replica3_alterTable_drop.sim
+++ b/tests/script/unique/arbitrator/sync_replica3_alterTable_drop.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 3 maxTables $totalTableNum
-sql create database $db replica 3 maxTables $totalTableNum
+print create database $db replica 3 
+sql create database $db replica 3 
 sql use $db
 
 # create table , insert data
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica3_createTable.sim b/tests/script/unique/arbitrator/sync_replica3_createTable.sim
index 1b93cc09f2f3550aeb8efa7593f4d943d47fc7c6..a07e6dc93da683348229fd66d951ba6cfbd96de6 100644
--- a/tests/script/unique/arbitrator/sync_replica3_createTable.sim
+++ b/tests/script/unique/arbitrator/sync_replica3_createTable.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica3_dnodeChang_DropAddAlterTableDropDb.sim b/tests/script/unique/arbitrator/sync_replica3_dnodeChang_DropAddAlterTableDropDb.sim
index f5ceced668e5c7a0288b5c314cfefc56b6601f17..8a586321e1773febe1bd3475d03fa9baab4e02d1 100644
--- a/tests/script/unique/arbitrator/sync_replica3_dnodeChang_DropAddAlterTableDropDb.sim
+++ b/tests/script/unique/arbitrator/sync_replica3_dnodeChang_DropAddAlterTableDropDb.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -137,8 +143,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
@@ -205,8 +211,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != slave then
   sleep 2000
@@ -238,8 +244,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != master then
   sleep 2000
@@ -312,8 +318,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != slave then
   sleep 2000
@@ -345,8 +351,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != master then
   sleep 2000
@@ -435,8 +441,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != slave then
   sleep 2000
@@ -468,8 +474,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != master then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica3_dropDb.sim b/tests/script/unique/arbitrator/sync_replica3_dropDb.sim
index 0f7ee50c3943c966e9284461189d585a22729fa4..fd07fda2d4e7f6c17527420bcae15aed52f53c50 100644
--- a/tests/script/unique/arbitrator/sync_replica3_dropDb.sim
+++ b/tests/script/unique/arbitrator/sync_replica3_dropDb.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 3 maxTables $totalTableNum
-sql create database $db replica 3 maxTables $totalTableNum
+print create database $db replica 3 
+sql create database $db replica 3 
 sql use $db
 
 # create table , insert data
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/arbitrator/sync_replica3_dropTable.sim b/tests/script/unique/arbitrator/sync_replica3_dropTable.sim
index 9c33dd8bb474bbc7d4c34eb9f62f62cc79951b06..1749477d645b1d80a82d9b4682da4872ad7a70ff 100644
--- a/tests/script/unique/arbitrator/sync_replica3_dropTable.sim
+++ b/tests/script/unique/arbitrator/sync_replica3_dropTable.sim
@@ -29,10 +29,16 @@ system sh/cfg.sh -n dnode2 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode3 -c alternativeRole -v 2
 system sh/cfg.sh -n dnode4 -c alternativeRole -v 2
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+$totalTableNum = 10
+system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v $totalTableNum
+system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v $totalTableNum
+
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 1
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 1
 
 system sh/cfg.sh -n dnode1 -c arbitrator -v $arbitrator
 system sh/cfg.sh -n dnode2 -c arbitrator -v $arbitrator
@@ -60,8 +66,8 @@ $totalTableNum = 10
 $sleepTimer = 3000
 
 $db = db
-print create database $db replica 3 maxTables $totalTableNum
-sql create database $db replica 3 maxTables $totalTableNum
+print create database $db replica 3 
+sql create database $db replica 3 
 sql use $db
 
 # create table , insert data
@@ -142,8 +148,8 @@ print show vgroups:
 print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $data7_1  $data8_1  $data9_1
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
-$dnode4Vtatus = $data4_2
-$dnode3Vtatus = $data7_2
+$dnode4Vtatus = $data6_2
+$dnode3Vtatus = $data9_2
 
 if $dnode4Vtatus != offline then
   sleep 2000
diff --git a/tests/script/unique/big/balance.sim b/tests/script/unique/big/balance.sim
index b2a15b0b9637c5f6a7af492b12b4dc4621ca2014..259951581e06eff226550ecf911a8dd65376fa6e 100644
--- a/tests/script/unique/big/balance.sim
+++ b/tests/script/unique/big/balance.sim
@@ -1,23 +1,28 @@
 system sh/stop_dnodes.sh
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 4
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 1000
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 4
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 1000
 
 system sh/deploy.sh -n dnode2 -i 2
 system sh/cfg.sh -n dnode2 -c numOfTotalVnodes -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 1000
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 4
+system sh/cfg.sh -n dnode2 -c maxTablesPerVnode -v 1000
 
 system sh/deploy.sh -n dnode3 -i 3
 system sh/cfg.sh -n dnode3 -c numOfTotalVnodes -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 1000
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 4
+system sh/cfg.sh -n dnode3 -c maxTablesPerVnode -v 1000
 
 system sh/deploy.sh -n dnode4 -i 4
 system sh/cfg.sh -n dnode4 -c numOfTotalVnodes -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 1000
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 4
+system sh/cfg.sh -n dnode4 -c maxTablesPerVnode -v 1000
 
 system sh/deploy.sh -n dnode5 -i 5
 system sh/cfg.sh -n dnode5 -c numOfTotalVnodes -v 4
-system sh/cfg.sh -n dnode5 -c maxtablesPerVnode -v 1000
+system sh/cfg.sh -n dnode5 -c maxVgroupsPerDb -v 4
+system sh/cfg.sh -n dnode5 -c maxTablesPerVnode -v 1000
 
 print =============== prepare data
 system sh/exec.sh -n dnode1 -s start
diff --git a/tests/script/unique/big/maxvnodes.sim b/tests/script/unique/big/maxvnodes.sim
index ab93474a436b851bbfa4cf6cb19e715dc4b704d1..9603b5de64d42bf50e989f6b1f01f8cf7cfa9c3a 100644
--- a/tests/script/unique/big/maxvnodes.sim
+++ b/tests/script/unique/big/maxvnodes.sim
@@ -9,9 +9,11 @@ $totalRows = $totalVnodes * $maxTables
 system sh/deploy.sh -n dnode1 -i 1
 system sh/cfg.sh -n dnode1 -c walLevel            -v 2
 system sh/cfg.sh -n dnode1 -c numOfTotalVnodes    -v $totalVnodes
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb     -v $totalVnodes
 system sh/deploy.sh -n dnode2 -i 2
 system sh/cfg.sh -n dnode2 -c walLevel            -v 2
 system sh/cfg.sh -n dnode2 -c numOfTotalVnodes    -v $totalVnodes
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb    -v $totalVnodes
 
 
 print ==========  prepare data
diff --git a/tests/script/unique/db/delete.sim b/tests/script/unique/db/delete.sim
index 819da67c8afe6ae55d2981e18ff379c9322b89f6..f05d64e6358fa1140c995727feea9839e02b67b4 100644
--- a/tests/script/unique/db/delete.sim
+++ b/tests/script/unique/db/delete.sim
@@ -12,6 +12,12 @@ system sh/cfg.sh -n dnode3 -c numOfMnodes -v 3
 system sh/cfg.sh -n dnode1 -c numOfTotalVnodes -v 10
 system sh/cfg.sh -n dnode2 -c numOfTotalVnodes -v 10
 system sh/cfg.sh -n dnode3 -c numOfTotalVnodes -v 10
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 2
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 2
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 2
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 1000
+system sh/cfg.sh -n dnode2 -c maxTablesPerVnode -v 1000
+system sh/cfg.sh -n dnode3 -c maxTablesPerVnode -v 1000
 
 print ========= start dnodes
 system sh/exec.sh -n dnode1 -s start
@@ -23,7 +29,7 @@ sql create dnode $hostname3
 system sh/exec.sh -n dnode3 -s start
 
 print ======== step1 
-sql create database db replica 3 blocks 2 maxtables 1000
+sql create database db replica 3 blocks 2
 sql create table db.mt (ts timestamp, tbcol int) TAGS(tgcol int)
 
 $tbPrefix = db.t
diff --git a/tests/script/unique/db/delete_part.sim b/tests/script/unique/db/delete_part.sim
index ac84382be42e9f7c5f39aa9072acc1e40dae6834..bf74e04b7f2e90bee1c667e5172bc3a9d26823fb 100644
--- a/tests/script/unique/db/delete_part.sim
+++ b/tests/script/unique/db/delete_part.sim
@@ -24,10 +24,15 @@ system sh/cfg.sh -n dnode2 -c numOfTotalVnodes -v 4
 system sh/cfg.sh -n dnode3 -c numOfTotalVnodes -v 4
 system sh/cfg.sh -n dnode4 -c numOfTotalVnodes -v 4
 
-system sh/cfg.sh -n dnode1 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode2 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode3 -c maxtablesPerVnode -v 4
-system sh/cfg.sh -n dnode4 -c maxtablesPerVnode -v 4
+system sh/cfg.sh -n dnode1 -c maxVgroupsPerDb -v 8
+system sh/cfg.sh -n dnode2 -c maxVgroupsPerDb -v 8
+system sh/cfg.sh -n dnode3 -c maxVgroupsPerDb -v 8
+system sh/cfg.sh -n dnode4 -c maxVgroupsPerDb -v 8
+
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 4
+system sh/cfg.sh -n dnode2 -c maxTablesPerVnode -v 4
+system sh/cfg.sh -n dnode3 -c maxTablesPerVnode -v 4
+system sh/cfg.sh -n dnode4 -c maxTablesPerVnode -v 4
 
 print ========= start dnodes
 system sh/exec.sh -n dnode1 -s start
diff --git a/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeDir.sim b/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeDir.sim
index e0b5e9b93102a5f1e656300bd5036dd869c9eff3..9d53c9968e472129dee87eee068ed26e5d1d1a00 100644
--- a/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeDir.sim
+++ b/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeDir.sim
@@ -199,13 +199,13 @@ print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $dat
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
 print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4  $data5_4  $data6_4  $data7_4  $data8_4  $data9_4
-$d2v2status = $data4_4
-$d2v3status = $data4_2
-$d2v4status = $data4_3
+$d2v2status = $data6_4
+$d2v3status = $data6_2
+$d2v4status = $data6_3
 
-$d1v2status = $data7_4
-$d1v3status = $data7_2
-$d1v4status = $data7_3
+$d1v2status = $data9_4
+$d1v3status = $data9_2
+$d1v4status = $data9_3
 
 if $d2v2status != master then
   sleep 2000
diff --git a/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir.sim b/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir.sim
index ae7fc6af170637f5c157b898dfc90b8502ca15cd..af457f4cbaebd92e1e2ef1423f97c32f6c94a51c 100644
--- a/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir.sim
+++ b/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir.sim
@@ -201,13 +201,13 @@ print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $dat
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
 print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4  $data5_4  $data6_4  $data7_4  $data8_4  $data9_4
-$d2v2status = $data4_4
-$d2v3status = $data4_2
-$d2v4status = $data4_3
+$d2v2status = $data6_4
+$d2v3status = $data6_2
+$d2v4status = $data6_3
 
-$d1v2status = $data7_4
-$d1v3status = $data7_2
-$d1v4status = $data7_3
+$d1v2status = $data9_4
+$d1v3status = $data9_2
+$d1v4status = $data9_3
 
 if $d2v2status != master then
   sleep 2000
diff --git a/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir_stopAll_starAll.sim b/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir_stopAll_starAll.sim
index dc9bc6269683b3e59bf97b6f38fd16f7af6ff1d0..e4ff2c23c8f5f7469ab74716e3c5d2357d20d38c 100644
--- a/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir_stopAll_starAll.sim
+++ b/tests/script/unique/migrate/mn2_vn2_repl2_rmMnodeVnodeDir_stopAll_starAll.sim
@@ -166,13 +166,13 @@ print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $dat
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
 print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4  $data5_4  $data6_4  $data7_4  $data8_4  $data9_4
-$d2v2status = $data4_4
-$d2v3status = $data4_2
-$d2v4status = $data4_3
+$d2v2status = $data6_4
+$d2v3status = $data6_2
+$d2v4status = $data6_3
 
-$d1v2status = $data7_4
-$d1v3status = $data7_2
-$d1v4status = $data7_3
+$d1v2status = $data9_4
+$d1v3status = $data9_2
+$d1v4status = $data9_3
 
 if $d2v2status != master then
   sleep 2000
diff --git a/tests/script/unique/migrate/mn2_vn2_repl2_rmVnodeDir.sim b/tests/script/unique/migrate/mn2_vn2_repl2_rmVnodeDir.sim
index b754dc7a496950e0285037df60913c9c0fe2d478..6736530240ba9d15920a0e61450babe9599137c3 100644
--- a/tests/script/unique/migrate/mn2_vn2_repl2_rmVnodeDir.sim
+++ b/tests/script/unique/migrate/mn2_vn2_repl2_rmVnodeDir.sim
@@ -199,13 +199,13 @@ print $data0_1  $data1_1  $data2_1  $data3_1  $data4_1  $data5_1  $data6_1  $dat
 print $data0_2  $data1_2  $data2_2  $data3_2  $data4_2  $data5_2  $data6_2  $data7_2  $data8_2  $data9_2
 print $data0_3  $data1_3  $data2_3  $data3_3  $data4_3  $data5_3  $data6_3  $data7_3  $data8_3  $data9_3
 print $data0_4  $data1_4  $data2_4  $data3_4  $data4_4  $data5_4  $data6_4  $data7_4  $data8_4  $data9_4
-$d2v2status = $data4_4
-$d2v3status = $data4_2
-$d2v4status = $data4_3
+$d2v2status = $data6_4
+$d2v3status = $data6_2
+$d2v4status = $data6_3
 
-$d1v2status = $data7_4
-$d1v3status = $data7_2
-$d1v4status = $data7_3
+$d1v2status = $data9_4
+$d1v3status = $data9_2
+$d1v4status = $data9_3
 
 if $d2v2status != master then
   sleep 2000
diff --git a/tests/tsim/inc/sim.h b/tests/tsim/inc/sim.h
index ecd481f869b00ead6d163d43f6943287ba573800..293427d24007f12540dd52aad2d6ad622db8c114 100644
--- a/tests/tsim/inc/sim.h
+++ b/tests/tsim/inc/sim.h
@@ -30,8 +30,8 @@
 #define MAX_FILE_NAME_LEN 256
 #define MAX_ERROR_LEN 1024
 #define MAX_QUERY_VALUE_LEN 40
-#define MAX_QUERY_COL_NUM 10
-#define MAX_QUERY_ROW_NUM 10
+#define MAX_QUERY_COL_NUM 20
+#define MAX_QUERY_ROW_NUM 20
 #define MAX_SYSTEM_RESULT_LEN 2048
 #define MAX_VAR_LEN 100
 #define MAX_VAR_NAME_LEN 32
diff --git a/tests/tsim/src/simExe.c b/tests/tsim/src/simExe.c
index b077547709e5f4fd0ef3ad5917ae17f6608f76ba..7826735c2f1d81bb783bcd71039a7f1c2ea4caf0 100644
--- a/tests/tsim/src/simExe.c
+++ b/tests/tsim/src/simExe.c
@@ -80,6 +80,23 @@ char *simGetVariable(SScript *script, char *varName, int varLen) {
         }
       }
       return "null";
+    } else if (varName[6] == '_') {
+      int col = (varName[4] - '0') * 10 + (varName[5] - '0');
+      if (col < 0 || col >= MAX_QUERY_COL_NUM) {
+        return "null";
+      }
+
+      char *keyName;
+      int keyLen;
+      paGetToken(varName + 7, &keyName, &keyLen);
+
+      for (int i = 0; i < MAX_QUERY_ROW_NUM; ++i) {
+        if (strncmp(keyName, script->data[i][0], keyLen) == 0) {
+          simTrace("script:%s, keyName:%s, keyValue:%s", script->fileName, script->data[i][0], script->data[i][col]);
+          return script->data[i][col];
+        }
+      }
+      return "null";
     } else {
       int row = varName[4] - '0';
       int col = varName[5] - '0';