diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index ab0472a575d9f1fbcd0ca4542564aaafa790417d..25d668e788357b596588f1282d0b8747242ac02f 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -739,6 +739,9 @@ typedef struct {
   int32_t  maxRows;
   int32_t  commitTime;
   int32_t  fsyncPeriod;
+  uint32_t hashBegin;
+  uint32_t hashEnd;
+  int8_t   hashMethod;  
   int8_t   walLevel;
   int8_t   precision;
   int8_t   compression;
@@ -749,6 +752,7 @@ typedef struct {
   int8_t   selfIndex;
   int8_t   streamMode;
   SReplica replicas[TSDB_MAX_REPLICA];
+  
 } SCreateVnodeReq, SAlterVnodeReq;
 
 int32_t tSerializeSCreateVnodeReq(void* buf, int32_t bufLen, SCreateVnodeReq* pReq);
diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index d8c850c6afa9588c21f3151f07513e0268a918a8..ae31dff3109cf732e165d68d7f6d9bb196a381a3 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -2112,6 +2112,9 @@ int32_t tSerializeSCreateVnodeReq(void *buf, int32_t bufLen, SCreateVnodeReq *pR
   if (tEncodeI32(&encoder, pReq->maxRows) < 0) return -1;
   if (tEncodeI32(&encoder, pReq->commitTime) < 0) return -1;
   if (tEncodeI32(&encoder, pReq->fsyncPeriod) < 0) return -1;
+  if (tEncodeU32(&encoder, pReq->hashBegin) < 0) return -1;
+  if (tEncodeU32(&encoder, pReq->hashEnd) < 0) return -1;
+  if (tEncodeI8(&encoder, pReq->hashMethod) < 0) return -1;
   if (tEncodeI8(&encoder, pReq->walLevel) < 0) return -1;
   if (tEncodeI8(&encoder, pReq->precision) < 0) return -1;
   if (tEncodeI8(&encoder, pReq->compression) < 0) return -1;
@@ -2152,6 +2155,9 @@ int32_t tDeserializeSCreateVnodeReq(void *buf, int32_t bufLen, SCreateVnodeReq *
   if (tDecodeI32(&decoder, &pReq->maxRows) < 0) return -1;
   if (tDecodeI32(&decoder, &pReq->commitTime) < 0) return -1;
   if (tDecodeI32(&decoder, &pReq->fsyncPeriod) < 0) return -1;
+  if (tDecodeU32(&decoder, &pReq->hashBegin) < 0) return -1;
+  if (tDecodeU32(&decoder, &pReq->hashEnd) < 0) return -1;
+  if (tDecodeI8(&decoder, &pReq->hashMethod) < 0) return -1;
   if (tDecodeI8(&decoder, &pReq->walLevel) < 0) return -1;
   if (tDecodeI8(&decoder, &pReq->precision) < 0) return -1;
   if (tDecodeI8(&decoder, &pReq->compression) < 0) return -1;
diff --git a/source/dnode/mgmt/impl/src/dndVnodes.c b/source/dnode/mgmt/impl/src/dndVnodes.c
index f20493aa7ffae8c9a2f3c2119e645bd46389f682..2767461f1201531222ea8fbfae5408832112ecb8 100644
--- a/source/dnode/mgmt/impl/src/dndVnodes.c
+++ b/source/dnode/mgmt/impl/src/dndVnodes.c
@@ -523,6 +523,9 @@ static void dndGenerateVnodeCfg(SCreateVnodeReq *pCreate, SVnodeCfg *pCfg) {
   pCfg->walCfg.rollPeriod = 128;
   pCfg->walCfg.segSize = 128;
   pCfg->walCfg.vgId = pCreate->vgId;
+  pCfg->hashBegin = pCreate->hashBegin;
+  pCfg->hashEnd = pCreate->hashEnd;
+  pCfg->hashMethod = pCreate->hashMethod;
 }
 
 static void dndGenerateWrapperCfg(SDnode *pDnode, SCreateVnodeReq *pCreate, SWrapperCfg *pCfg) {
diff --git a/source/dnode/mnode/impl/src/mndVgroup.c b/source/dnode/mnode/impl/src/mndVgroup.c
index b437b444177d5594c2c637b2741fe367b0305674..f7b177f170daa28f499d7b8a8d9fd22fcc98562c 100644
--- a/source/dnode/mnode/impl/src/mndVgroup.c
+++ b/source/dnode/mnode/impl/src/mndVgroup.c
@@ -215,6 +215,9 @@ void *mndBuildCreateVnodeReq(SMnode *pMnode, SDnodeObj *pDnode, SDbObj *pDb, SVg
   createReq.replica = pVgroup->replica;
   createReq.selfIndex = -1;
   createReq.streamMode = pVgroup->streamMode;
+  createReq.hashBegin = pVgroup->hashBegin;
+  createReq.hashEnd = pVgroup->hashEnd;
+  createReq.hashMethod = pDb->hashMethod;
 
   for (int32_t v = 0; v < pVgroup->replica; ++v) {
     SReplica  *pReplica = &createReq.replicas[v];
diff --git a/source/dnode/vnode/inc/vnode.h b/source/dnode/vnode/inc/vnode.h
index 31f04e840ac2a82fc95dac80461cd5efb5c07d27..9a4f920499aebe5b45fc25c5127cadd1aad03551 100644
--- a/source/dnode/vnode/inc/vnode.h
+++ b/source/dnode/vnode/inc/vnode.h
@@ -57,6 +57,9 @@ typedef struct {
   SMetaCfg metaCfg;
   STqCfg   tqCfg;
   SWalCfg  walCfg;
+  uint32_t hashBegin;
+  uint32_t hashEnd;
+  int8_t   hashMethod;  
 } SVnodeCfg;
 
 typedef struct {
diff --git a/source/dnode/vnode/src/vnd/vnodeMain.c b/source/dnode/vnode/src/vnd/vnodeMain.c
index c748907d6c41a02ecbd2be3f70f04ab2ea9b2738..ba346064ae6216b92b62435a3ba1ec995d2cec52 100644
--- a/source/dnode/vnode/src/vnd/vnodeMain.c
+++ b/source/dnode/vnode/src/vnd/vnodeMain.c
@@ -30,6 +30,9 @@ SVnode *vnodeOpen(const char *path, const SVnodeCfg *pVnodeCfg) {
     cfg.pDnode = pVnodeCfg->pDnode;
     cfg.pTfs = pVnodeCfg->pTfs;
     cfg.dbId = pVnodeCfg->dbId;
+    cfg.hashBegin = pVnodeCfg->hashBegin;
+    cfg.hashEnd = pVnodeCfg->hashEnd;
+    cfg.hashMethod = pVnodeCfg->hashMethod;
   }
 
   // Validate options
diff --git a/source/libs/catalog/inc/catalogInt.h b/source/libs/catalog/inc/catalogInt.h
index e71f559ad960466264702e67b6c384d01e5f1113..c4f1a117fe58e146efcc393287700db8c9d131e4 100644
--- a/source/libs/catalog/inc/catalogInt.h
+++ b/source/libs/catalog/inc/catalogInt.h
@@ -60,6 +60,7 @@ typedef struct SCtgDebug {
   bool     lockDebug;
   bool     cacheDebug;
   bool     apiDebug;
+  bool     metaDebug;
   uint32_t showCachePeriodSec;
 } SCtgDebug;
 
@@ -119,6 +120,10 @@ typedef struct SCatalogStat {
   SCtgCacheStat    cache;
 } SCatalogStat;
 
+typedef struct SCtgUpdateMsgHeader {
+  SCatalog* pCtg;
+} SCtgUpdateMsgHeader;
+
 typedef struct SCtgUpdateVgMsg {
   SCatalog* pCtg;
   char  dbFName[TSDB_DB_FNAME_LEN];
@@ -145,6 +150,14 @@ typedef struct SCtgRemoveStbMsg {
   uint64_t suid;
 } SCtgRemoveStbMsg;
 
+typedef struct SCtgRemoveTblMsg {
+  SCatalog* pCtg;
+  char  dbFName[TSDB_DB_FNAME_LEN];
+  char  tbName[TSDB_TABLE_NAME_LEN];
+  uint64_t dbId;
+} SCtgRemoveTblMsg;
+
+
 typedef struct SCtgMetaAction {
   int32_t act;
   void   *data;
@@ -189,19 +202,21 @@ typedef struct SCtgAction {
 #define CTG_IS_META_TABLE(type) ((type) == META_TYPE_TABLE)
 #define CTG_IS_META_BOTH(type) ((type) == META_TYPE_BOTH_TABLE)
 
-#define CTG_FLAG_STB         0x1
-#define CTG_FLAG_NOT_STB     0x2
-#define CTG_FLAG_UNKNOWN_STB 0x4
-#define CTG_FLAG_INF_DB      0x8
-
-#define CTG_IS_STB(_flag) ((_flag) & CTG_FLAG_STB)
-#define CTG_IS_NOT_STB(_flag) ((_flag) & CTG_FLAG_NOT_STB)
-#define CTG_IS_UNKNOWN_STB(_flag) ((_flag) & CTG_FLAG_UNKNOWN_STB)
-#define CTG_IS_INF_DB(_flag) ((_flag) & CTG_FLAG_INF_DB)
-#define CTG_SET_INF_DB(_flag) ((_flag) |= CTG_FLAG_INF_DB)
-#define CTG_SET_STB(_flag, tbType) do { (_flag) |= ((tbType) == TSDB_SUPER_TABLE) ? CTG_FLAG_STB : ((tbType) > TSDB_SUPER_TABLE ? CTG_FLAG_NOT_STB : CTG_FLAG_UNKNOWN_STB); } while (0)
-#define CTG_GEN_STB_FLAG(_isStb) ((_isStb) == 1) ? CTG_FLAG_STB : ((_isStb) == 0 ? CTG_FLAG_NOT_STB : CTG_FLAG_UNKNOWN_STB)
-#define CTG_TBTYPE_MATCH(_flag, tbType) (CTG_IS_UNKNOWN_STB(_flag) || (CTG_IS_STB(_flag) && (tbType) == TSDB_SUPER_TABLE) || (CTG_IS_NOT_STB(_flag) && (tbType) != TSDB_SUPER_TABLE))
+#define CTG_FLAG_STB          0x1
+#define CTG_FLAG_NOT_STB      0x2
+#define CTG_FLAG_UNKNOWN_STB  0x4
+#define CTG_FLAG_INF_DB       0x8
+#define CTG_FLAG_FORCE_UPDATE 0x10
+
+#define CTG_FLAG_IS_STB(_flag) ((_flag) & CTG_FLAG_STB)
+#define CTG_FLAG_IS_NOT_STB(_flag) ((_flag) & CTG_FLAG_NOT_STB)
+#define CTG_FLAG_IS_UNKNOWN_STB(_flag) ((_flag) & CTG_FLAG_UNKNOWN_STB)
+#define CTG_FLAG_IS_INF_DB(_flag) ((_flag) & CTG_FLAG_INF_DB)
+#define CTG_FLAG_IS_FORCE_UPDATE(_flag) ((_flag) & CTG_FLAG_FORCE_UPDATE)
+#define CTG_FLAG_SET_INF_DB(_flag) ((_flag) |= CTG_FLAG_INF_DB)
+#define CTG_FLAG_SET_STB(_flag, tbType) do { (_flag) |= ((tbType) == TSDB_SUPER_TABLE) ? CTG_FLAG_STB : ((tbType) > TSDB_SUPER_TABLE ? CTG_FLAG_NOT_STB : CTG_FLAG_UNKNOWN_STB); } while (0)
+#define CTG_FLAG_MAKE_STB(_isStb) (((_isStb) == 1) ? CTG_FLAG_STB : ((_isStb) == 0 ? CTG_FLAG_NOT_STB : CTG_FLAG_UNKNOWN_STB))
+#define CTG_FLAG_MATCH_STB(_flag, tbType) (CTG_FLAG_IS_UNKNOWN_STB(_flag) || (CTG_FLAG_IS_STB(_flag) && (tbType) == TSDB_SUPER_TABLE) || (CTG_FLAG_IS_NOT_STB(_flag) && (tbType) != TSDB_SUPER_TABLE))
 
 #define CTG_IS_INF_DBNAME(_dbname) ((*(_dbname) == 'i') && (0 == strcmp(_dbname, TSDB_INFORMATION_SCHEMA_DB)))
 
diff --git a/source/libs/catalog/src/catalog.c b/source/libs/catalog/src/catalog.c
index f0ea51c2f9e28b6a9999d1d8d75bbe8821f5483e..5779906761bbfef3c72b13d646b3bf7de0448c23 100644
--- a/source/libs/catalog/src/catalog.c
+++ b/source/libs/catalog/src/catalog.c
@@ -72,6 +72,12 @@ int32_t ctgDbgEnableDebug(char *option) {
     return TSDB_CODE_SUCCESS;
   }
 
+  if (0 == strcasecmp(option, "meta")) {
+    gCTGDebug.metaDebug = true;
+    qDebug("api debug enabled");
+    return TSDB_CODE_SUCCESS;
+  }
+
   qError("invalid debug option:%s", option);
   
   return TSDB_CODE_CTG_INTERNAL_ERROR;
@@ -148,9 +154,30 @@ int32_t ctgDbgGetClusterCacheNum(SCatalog* pCtg, int32_t type) {
   return num;
 }
 
+void ctgDbgShowTableMeta(SCatalog* pCtg, const char *tbName, STableMeta* p) {
+  if (!gCTGDebug.metaDebug) {
+    return;
+  }
+
+  STableComInfo *c = &p->tableInfo;
+
+  if (TSDB_CHILD_TABLE == p->tableType) {
+    ctgDebug("table [%s] meta: type:%d, vgId:%d, uid:%" PRIx64 ",suid:%" PRIx64, tbName, p->tableType, p->vgId, p->uid, p->suid);
+    return;
+  } else {
+    ctgDebug("table [%s] meta: type:%d, vgId:%d, uid:%" PRIx64 ",suid:%" PRIx64 ",sv:%d, tv:%d, tagNum:%d, precision:%d, colNum:%d, rowSize:%d",
+     tbName, p->tableType, p->vgId, p->uid, p->suid, p->sversion, p->tversion, c->numOfTags, c->precision, c->numOfColumns, c->rowSize);
+  }
+  
+  int32_t colNum = c->numOfColumns + c->numOfTags;
+  for (int32_t i = 0; i < colNum; ++i) {
+    SSchema *s = &p->schema[i];
+    ctgDebug("[%d] name:%s, type:%d, colId:%d, bytes:%d", i, s->name, s->type, s->colId, s->bytes);
+  }
+}
 
-void ctgDbgShowDBCache(SHashObj *dbHash) {
-  if (NULL == dbHash) {
+void ctgDbgShowDBCache(SCatalog* pCtg, SHashObj *dbHash) {
+  if (NULL == dbHash || !gCTGDebug.cacheDebug) {
     return;
   }
 
@@ -164,31 +191,24 @@ void ctgDbgShowDBCache(SHashObj *dbHash) {
     dbCache = (SCtgDBCache *)pIter;
 
     taosHashGetKey(dbCache, (void **)&dbFName, &len);
-    
-    CTG_CACHE_DEBUG("** %dth db [%.*s][%"PRIx64"] **", i, (int32_t)len, dbFName, dbCache->dbId);
 
-    CTG_CACHE_DEBUG("deleted: %d", dbCache->deleted);
+    int32_t metaNum = dbCache->tbCache.metaCache ? taosHashGetSize(dbCache->tbCache.metaCache) : 0;
+    int32_t stbNum = dbCache->tbCache.stbCache ? taosHashGetSize(dbCache->tbCache.stbCache) : 0;
+    int32_t vgVersion = CTG_DEFAULT_INVALID_VERSION;
+    int32_t hashMethod = -1;
+    int32_t vgNum = 0;
+
     if (dbCache->vgInfo) {
-      CTG_CACHE_DEBUG("vgVersion: %d", dbCache->vgInfo->vgVersion);
-      CTG_CACHE_DEBUG("hashMethod: %d", dbCache->vgInfo->hashMethod);
+      vgVersion = dbCache->vgInfo->vgVersion;
+      hashMethod = dbCache->vgInfo->hashMethod;
       if (dbCache->vgInfo->vgHash) {
-        CTG_CACHE_DEBUG("vgNum: %d", taosHashGetSize(dbCache->vgInfo->vgHash));
-        //TODO
-      } else {
-        CTG_CACHE_DEBUG("vgHash: %p", dbCache->vgInfo->vgHash);
+        vgNum = taosHashGetSize(dbCache->vgInfo->vgHash);
       }
-    } else {
-      CTG_CACHE_DEBUG("vgInfo: %p", dbCache->vgInfo);
-    }
-
-    if (dbCache->tbCache.metaCache) {
-      CTG_CACHE_DEBUG("metaNum: %d", taosHashGetSize(dbCache->tbCache.metaCache));
-    }
-
-    if (dbCache->tbCache.stbCache) {
-      CTG_CACHE_DEBUG("stbNum: %d", taosHashGetSize(dbCache->tbCache.stbCache));
-    }
+    }    
     
+    ctgDebug("[%d] db [%.*s][%"PRIx64"] %s: metaNum:%d, stbNum:%d, vgVersion:%d, hashMethod:%d, vgNum:%d", 
+      i, (int32_t)len, dbFName, dbCache->dbId, dbCache->deleted?"deleted":"", metaNum, stbNum, vgVersion, hashMethod, vgNum);
+
     pIter = taosHashIterate(dbHash, pIter);
   }
 }
@@ -197,15 +217,15 @@ void ctgDbgShowDBCache(SHashObj *dbHash) {
 
 
 void ctgDbgShowClusterCache(SCatalog* pCtg) {
-  if (NULL == pCtg) {
+  if (!gCTGDebug.cacheDebug || NULL == pCtg) {
     return;
   }
 
-  CTG_CACHE_DEBUG("## cluster %"PRIx64" %p cache Info ##", pCtg->clusterId, pCtg);
-  CTG_CACHE_DEBUG("db:%d meta:%d stb:%d dbRent:%d stbRent:%d", ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_DB_NUM), ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM), 
+  ctgDebug("## cluster %"PRIx64" %p cache Info ##", pCtg->clusterId, pCtg);
+  ctgDebug("db:%d meta:%d stb:%d dbRent:%d stbRent:%d", ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_DB_NUM), ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM), 
     ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_STB_NUM), ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_DB_RENT_NUM), ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_STB_RENT_NUM));    
   
-  ctgDbgShowDBCache(pCtg->dbCache);
+  ctgDbgShowDBCache(pCtg, pCtg->dbCache);
 }
 
 
@@ -292,6 +312,66 @@ _return:
 }
 
 
+int32_t ctgPushRmStbMsgInQueue(SCatalog* pCtg, const char *dbFName, int64_t dbId, const char *stbName, uint64_t suid) {
+  int32_t code = 0;
+  SCtgMetaAction action= {.act = CTG_ACT_REMOVE_STB};
+  SCtgRemoveStbMsg *msg = malloc(sizeof(SCtgRemoveStbMsg));
+  if (NULL == msg) {
+    ctgError("malloc %d failed", (int32_t)sizeof(SCtgRemoveStbMsg));
+    CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);
+  }
+
+  msg->pCtg = pCtg;
+  strncpy(msg->dbFName, dbFName, sizeof(msg->dbFName));
+  strncpy(msg->stbName, stbName, sizeof(msg->stbName));
+  msg->dbId = dbId;
+  msg->suid = suid;
+
+  action.data = msg;
+
+  CTG_ERR_JRET(ctgPushAction(&action));
+
+  ctgDebug("action [%s] added into queue", gCtgAction[action.act].name);
+
+  return TSDB_CODE_SUCCESS;
+
+_return:
+  
+  tfree(action.data);
+  CTG_RET(code);  
+}
+
+
+
+int32_t ctgPushRmTblMsgInQueue(SCatalog* pCtg, const char *dbFName, int64_t dbId, const char *tbName) {
+  int32_t code = 0;
+  SCtgMetaAction action= {.act = CTG_ACT_REMOVE_TBL};
+  SCtgRemoveTblMsg *msg = malloc(sizeof(SCtgRemoveTblMsg));
+  if (NULL == msg) {
+    ctgError("malloc %d failed", (int32_t)sizeof(SCtgRemoveTblMsg));
+    CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);
+  }
+
+  msg->pCtg = pCtg;
+  strncpy(msg->dbFName, dbFName, sizeof(msg->dbFName));
+  strncpy(msg->tbName, tbName, sizeof(msg->tbName));
+  msg->dbId = dbId;
+
+  action.data = msg;
+
+  CTG_ERR_JRET(ctgPushAction(&action));
+
+  ctgDebug("action [%s] added into queue", gCtgAction[action.act].name);
+
+  return TSDB_CODE_SUCCESS;
+
+_return:
+  
+  tfree(action.data);
+  CTG_RET(code);  
+}
+
+
 void ctgFreeTableMetaCache(SCtgTbMetaCache *cache) {
   CTG_LOCK(CTG_WRITE, &cache->stbLock);
   if (cache->stbCache) {
@@ -554,7 +634,7 @@ int32_t ctgIsTableMetaExistInCache(SCatalog* pCtg, char *dbFName, char* tbName,
 }
 
 
-int32_t ctgGetTableMetaFromCache(SCatalog* pCtg, const SName* pTableName, STableMeta** pTableMeta, int32_t *exist, int32_t flag) {
+int32_t ctgGetTableMetaFromCache(SCatalog* pCtg, const SName* pTableName, STableMeta** pTableMeta, int32_t *exist, int32_t flag, uint64_t *dbId) {
   if (NULL == pCtg->dbCache) {
     *exist = 0;
     ctgWarn("empty tbmeta cache, tbName:%s", pTableName->tname);
@@ -562,7 +642,7 @@ int32_t ctgGetTableMetaFromCache(SCatalog* pCtg, const SName* pTableName, STable
   }
 
   char dbFName[TSDB_DB_FNAME_LEN] = {0};
-  if (CTG_IS_INF_DB(flag)) {
+  if (CTG_FLAG_IS_INF_DB(flag)) {
     strcpy(dbFName, pTableName->dbname);
   } else {
     tNameGetFullDbName(pTableName, dbFName);
@@ -590,6 +670,9 @@ int32_t ctgGetTableMetaFromCache(SCatalog* pCtg, const SName* pTableName, STable
   }
 
   *exist = 1;
+  if (dbId) {
+    *dbId = dbCache->dbId;
+  }
   
   tbMeta = *pTableMeta;
 
@@ -646,7 +729,7 @@ int32_t ctgGetTableTypeFromCache(SCatalog* pCtg, const SName* pTableName, int32_
   }
 
   char dbFName[TSDB_DB_FNAME_LEN] = {0};
-  if (CTG_IS_INF_DB(flag)) {
+  if (CTG_FLAG_IS_INF_DB(flag)) {
     strcpy(dbFName, pTableName->dbname);
   } else {
     tNameGetFullDbName(pTableName, dbFName);
@@ -1304,18 +1387,21 @@ int32_t ctgUpdateTblMeta(SCatalog *pCtg, SCtgDBCache *dbCache, char *dbFName, ui
   STableMeta *orig = taosHashGet(tbCache->metaCache, tbName, strlen(tbName));
   if (orig) {
     origType = orig->tableType;
-    origSuid = orig->suid;
     
-    if (origType == TSDB_SUPER_TABLE && ((!isStb) || origSuid != meta->suid)) {
-      CTG_LOCK(CTG_WRITE, &tbCache->stbLock);
-      if (taosHashRemove(tbCache->stbCache, &orig->suid, sizeof(orig->suid))) {
-        ctgError("stb not exist in stbCache, dbFName:%s, stb:%s, suid:%"PRIx64, dbFName, tbName, orig->suid);
+    if (origType == TSDB_SUPER_TABLE) {
+      if ((!isStb) || orig->suid != meta->suid) {
+        CTG_LOCK(CTG_WRITE, &tbCache->stbLock);
+        if (taosHashRemove(tbCache->stbCache, &orig->suid, sizeof(orig->suid))) {
+          ctgError("stb not exist in stbCache, dbFName:%s, stb:%s, suid:%"PRIx64, dbFName, tbName, orig->suid);
+        }
+        CTG_UNLOCK(CTG_WRITE, &tbCache->stbLock);
+
+        ctgDebug("stb removed from stbCache, dbFName:%s, stb:%s, suid:%"PRIx64, dbFName, tbName, orig->suid);
+        
+        ctgMetaRentRemove(&pCtg->stbRent, orig->suid, ctgStbVersionCompare);
       }
-      CTG_UNLOCK(CTG_WRITE, &tbCache->stbLock);
 
-      ctgDebug("stb removed from stbCache, dbFName:%s, stb:%s, suid:%"PRIx64, dbFName, tbName, orig->suid);
-      
-      ctgMetaRentRemove(&pCtg->stbRent, orig->suid, ctgStbVersionCompare);
+      origSuid = orig->suid;
     }
   }
 
@@ -1334,13 +1420,14 @@ int32_t ctgUpdateTblMeta(SCatalog *pCtg, SCtgDBCache *dbCache, char *dbFName, ui
   }
 
   ctgDebug("tbmeta updated to cache, dbFName:%s, tbName:%s, tbType:%d", dbFName, tbName, meta->tableType);
+  ctgDbgShowTableMeta(pCtg, tbName, meta);
 
   if (!isStb) {
     CTG_UNLOCK(CTG_READ, &tbCache->metaLock);  
     return TSDB_CODE_SUCCESS;
   }
 
-  if (isStb && origSuid == meta->suid) {
+  if (origType == TSDB_SUPER_TABLE && origSuid == meta->suid) {
     CTG_UNLOCK(CTG_WRITE, &tbCache->stbLock);
     CTG_UNLOCK(CTG_READ, &tbCache->metaLock);  
     return TSDB_CODE_SUCCESS;
@@ -1506,7 +1593,7 @@ int32_t ctgRefreshTblMeta(SCatalog* pCtg, void *pTrans, const SEpSet* pMgmtEps,
   SVgroupInfo vgroupInfo = {0};
   int32_t code = 0;
 
-  if (!CTG_IS_INF_DB(flag)) {
+  if (!CTG_FLAG_IS_INF_DB(flag)) {
     CTG_ERR_RET(catalogGetTableHashVgroup(pCtg, pTrans, pMgmtEps, pTableName, &vgroupInfo));
   }
 
@@ -1518,11 +1605,11 @@ int32_t ctgRefreshTblMeta(SCatalog* pCtg, void *pTrans, const SEpSet* pMgmtEps,
     CTG_ERR_RET(TSDB_CODE_CTG_MEM_ERROR);
   }
 
-  if (CTG_IS_INF_DB(flag)) {
+  if (CTG_FLAG_IS_INF_DB(flag)) {
     ctgDebug("will refresh tbmeta, supposed in information_schema, tbName:%s", tNameGetTableName(pTableName));
 
     CTG_ERR_JRET(ctgGetTableMetaFromMnodeImpl(pCtg, pTrans, pMgmtEps, (char *)pTableName->dbname, (char *)pTableName->tname, output));
-  } else if (CTG_IS_STB(flag)) {
+  } else if (CTG_FLAG_IS_STB(flag)) {
     ctgDebug("will refresh tbmeta, supposed to be stb, tbName:%s", tNameGetTableName(pTableName));
 
     // if get from mnode failed, will not try vnode
@@ -1538,14 +1625,17 @@ int32_t ctgRefreshTblMeta(SCatalog* pCtg, void *pTrans, const SEpSet* pMgmtEps,
     CTG_ERR_JRET(ctgGetTableMetaFromVnode(pCtg, pTrans, pMgmtEps, pTableName, &vgroupInfo, output));
 
     if (CTG_IS_META_TABLE(output->metaType) && TSDB_SUPER_TABLE == output->tbMeta->tableType) {
-      ctgDebug("will continue to refresh tbmeta since got stb, tbName:%s, metaType:%d", tNameGetTableName(pTableName), output->metaType);
+      ctgDebug("will continue to refresh tbmeta since got stb, tbName:%s", tNameGetTableName(pTableName));
 
       tfree(output->tbMeta);
       
       CTG_ERR_JRET(ctgGetTableMetaFromMnodeImpl(pCtg, pTrans, pMgmtEps, output->dbFName, output->tbName, output));
     } else if (CTG_IS_META_BOTH(output->metaType)) {
       int32_t exist = 0;
-      CTG_ERR_JRET(ctgIsTableMetaExistInCache(pCtg, output->dbFName, output->tbName, &exist));
+      if (!CTG_FLAG_IS_FORCE_UPDATE(flag)) {
+        CTG_ERR_JRET(ctgIsTableMetaExistInCache(pCtg, output->dbFName, output->tbName, &exist));
+      }
+      
       if (0 == exist) {
         CTG_ERR_JRET(ctgGetTableMetaFromMnodeImpl(pCtg, pTrans, pMgmtEps, output->dbFName, output->tbName, &moutput));
 
@@ -1606,35 +1696,40 @@ _return:
   CTG_RET(code);
 }
 
-int32_t ctgGetTableMeta(SCatalog* pCtg, void *pRpc, const SEpSet* pMgmtEps, const SName* pTableName, bool forceUpdate, STableMeta** pTableMeta, int32_t flag) {
+int32_t ctgGetTableMeta(SCatalog* pCtg, void *pRpc, const SEpSet* pMgmtEps, const SName* pTableName, STableMeta** pTableMeta, int32_t flag) {
   if (NULL == pCtg || NULL == pRpc || NULL == pMgmtEps || NULL == pTableName || NULL == pTableMeta) {
     CTG_ERR_RET(TSDB_CODE_CTG_INVALID_INPUT);
   }
   
   int32_t exist = 0;
   int32_t code = 0;
+  uint64_t dbId = 0;
+  uint64_t suid = 0;
+  STableMetaOutput *output = NULL;
 
   if (CTG_IS_INF_DBNAME(pTableName->dbname)) {
-    CTG_SET_INF_DB(flag);
+    CTG_FLAG_SET_INF_DB(flag);
   }
 
-  if ((!forceUpdate) || (CTG_IS_INF_DB(flag))) {
-    CTG_ERR_RET(ctgGetTableMetaFromCache(pCtg, pTableName, pTableMeta, &exist, flag));
+  CTG_ERR_RET(ctgGetTableMetaFromCache(pCtg, pTableName, pTableMeta, &exist, flag, &dbId));
 
-    if (exist && CTG_TBTYPE_MATCH(flag, (*pTableMeta)->tableType)) {
-      return TSDB_CODE_SUCCESS;
+  int32_t tbType = 0;
+
+  if (exist) {
+    if (CTG_FLAG_MATCH_STB(flag, (*pTableMeta)->tableType) && ((!CTG_FLAG_IS_FORCE_UPDATE(flag)) || (CTG_FLAG_IS_INF_DB(flag)))) {
+      goto _return;
     }
 
-    tfree(*pTableMeta);
-  } else if (CTG_IS_UNKNOWN_STB(flag)) {
-    int32_t tbType = 0;
-    
-    CTG_ERR_RET(ctgGetTableTypeFromCache(pCtg, pTableName, &tbType, flag));
+    tbType = (*pTableMeta)->tableType;
+    suid = (*pTableMeta)->suid;
 
-    CTG_SET_STB(flag, tbType);
+    tfree(*pTableMeta);    
+  }
+    
+  if (CTG_FLAG_IS_UNKNOWN_STB(flag)) {
+    CTG_FLAG_SET_STB(flag, tbType);
   }
 
-  STableMetaOutput *output = NULL;
 
   while (true) {
     CTG_ERR_JRET(ctgRefreshTblMeta(pCtg, pRpc, pMgmtEps, pTableName, flag, &output));
@@ -1662,7 +1757,7 @@ int32_t ctgGetTableMeta(SCatalog* pCtg, void *pRpc, const SEpSet* pMgmtEps, cons
     SName stbName = *pTableName;
     strcpy(stbName.tname, output->tbName);
     
-    CTG_ERR_JRET(ctgGetTableMetaFromCache(pCtg, &stbName, pTableMeta, &exist, flag));
+    CTG_ERR_JRET(ctgGetTableMetaFromCache(pCtg, &stbName, pTableMeta, &exist, flag, NULL));
     if (0 == exist) {
       ctgDebug("stb no longer exist, dbFName:%s, tbName:%s", output->dbFName, pTableName->tname);
       continue;
@@ -1675,10 +1770,26 @@ int32_t ctgGetTableMeta(SCatalog* pCtg, void *pRpc, const SEpSet* pMgmtEps, cons
 
 _return:
 
+  if (CTG_TABLE_NOT_EXIST(code) && exist) {
+    char dbFName[TSDB_DB_FNAME_LEN] = {0};
+    if (CTG_FLAG_IS_INF_DB(flag)) {
+      strcpy(dbFName, pTableName->dbname);
+    } else {
+      tNameGetFullDbName(pTableName, dbFName);
+    }
+
+    if (TSDB_SUPER_TABLE == tbType) {
+      ctgPushRmStbMsgInQueue(pCtg, dbFName, dbId, pTableName->tname, suid);
+    } else {
+      ctgPushRmTblMsgInQueue(pCtg, dbFName, dbId, pTableName->tname);
+    }
+  }
+
   tfree(output);
 
   if (*pTableMeta) {
     ctgDebug("tbmeta returned, tbName:%s, tbType:%d", pTableName->tname, (*pTableMeta)->tableType);
+    ctgDbgShowTableMeta(pCtg, pTableName->tname, *pTableMeta);
   }
 
   CTG_RET(code);
@@ -1694,7 +1805,7 @@ int32_t ctgActUpdateVg(SCtgMetaAction *action) {
 
 _return:
 
-  tfree(msg->dbInfo);
+  ctgFreeVgInfo(msg->dbInfo);
   tfree(msg);
   
   CTG_RET(code);
@@ -1780,7 +1891,6 @@ _return:
 int32_t ctgActRemoveStb(SCtgMetaAction *action) {
   int32_t code = 0;
   SCtgRemoveStbMsg *msg = action->data;
-  bool removed = false;
   SCatalog* pCtg = msg->pCtg;
 
   SCtgDBCache *dbCache = NULL;
@@ -1826,7 +1936,36 @@ _return:
 }
 
 int32_t ctgActRemoveTbl(SCtgMetaAction *action) {
+  int32_t code = 0;
+  SCtgRemoveTblMsg *msg = action->data;
+  SCatalog* pCtg = msg->pCtg;
+
+  SCtgDBCache *dbCache = NULL;
+  ctgGetDBCache(pCtg, msg->dbFName, &dbCache);
+  if (NULL == dbCache) {
+    return TSDB_CODE_SUCCESS;
+  }
+
+  if (dbCache->dbId != msg->dbId) {
+    ctgDebug("dbId already modified, dbFName:%s, current:%"PRIx64", dbId:%"PRIx64", tbName:%s", msg->dbFName, dbCache->dbId, msg->dbId, msg->tbName);
+    return TSDB_CODE_SUCCESS;
+  }
+  
+  CTG_LOCK(CTG_READ, &dbCache->tbCache.metaLock);
+  if (taosHashRemove(dbCache->tbCache.metaCache, msg->tbName, strlen(msg->tbName))) {  
+    CTG_UNLOCK(CTG_READ, &dbCache->tbCache.metaLock);
+    ctgError("stb not exist in cache, dbFName:%s, tbName:%s", msg->dbFName, msg->tbName);
+    CTG_ERR_RET(TSDB_CODE_CTG_INTERNAL_ERROR);
+  }  
+  CTG_UNLOCK(CTG_READ, &dbCache->tbCache.metaLock);
+  
+  ctgInfo("table removed from cache, dbFName:%s, tbName:%s", msg->dbFName, msg->tbName);
+  
+_return:
 
+  tfree(msg);
+  
+  CTG_RET(code);
 }
 
 
@@ -1846,12 +1985,15 @@ void* ctgUpdateThreadFunc(void* param) {
 
     SCtgMetaAction *action = NULL;
     ctgPopAction(&action);
+    SCatalog *pCtg = ((SCtgUpdateMsgHeader *)action->data)->pCtg;
 
-    qDebug("process %s action", gCtgAction[action->act].name);
+    ctgDebug("process [%s] action", gCtgAction[action->act].name);
     
     (*gCtgAction[action->act].func)(action);
 
     CTG_STAT_ADD(gCtgMgmt.stat.runtime.qDoneNum); 
+
+    ctgDbgShowClusterCache(pCtg);
   }
 
   CTG_UNLOCK(CTG_READ, &gCtgMgmt.lock);
@@ -2121,22 +2263,20 @@ int32_t catalogUpdateDBVgInfo(SCatalog* pCtg, const char* dbFName, uint64_t dbId
   strncpy(msg->dbFName, dbFName, sizeof(msg->dbFName));
   msg->dbId = dbId;
   msg->dbInfo = dbInfo;
-  dbInfo = NULL;
 
   action.data = msg;
 
   CTG_ERR_JRET(ctgPushAction(&action));
 
+  dbInfo = NULL;
+
   ctgDebug("action [%s] added into queue", gCtgAction[action.act].name);
 
   CTG_API_LEAVE(code);
   
 _return:
 
-  if (dbInfo) {
-    taosHashCleanup(dbInfo->vgHash);
-    tfree(dbInfo);
-  }
+  ctgFreeVgInfo(dbInfo);
 
   tfree(msg);
   
@@ -2179,31 +2319,12 @@ int32_t catalogRemoveStbMeta(SCatalog* pCtg, const char* dbFName, uint64_t dbId,
     CTG_API_LEAVE(TSDB_CODE_SUCCESS);
   }
 
-  SCtgMetaAction action= {.act = CTG_ACT_REMOVE_STB};
-  SCtgRemoveStbMsg *msg = malloc(sizeof(SCtgRemoveStbMsg));
-  if (NULL == msg) {
-    ctgError("malloc %d failed", (int32_t)sizeof(SCtgRemoveStbMsg));
-    CTG_API_LEAVE(TSDB_CODE_CTG_MEM_ERROR);
-  }
-
-  msg->pCtg = pCtg;
-  strncpy(msg->dbFName, dbFName, sizeof(msg->dbFName));
-  strncpy(msg->stbName, stbName, sizeof(msg->stbName));
-  msg->dbId = dbId;
-  msg->suid = suid;
-
-  action.data = msg;
-
-  CTG_ERR_JRET(ctgPushAction(&action));
-
-  ctgDebug("action [%s] added into queue", gCtgAction[action.act].name);
+  CTG_ERR_JRET(ctgPushRmStbMsgInQueue(pCtg, dbFName, dbId, stbName, suid));
 
   CTG_API_LEAVE(TSDB_CODE_SUCCESS);
   
 _return:
 
-  tfree(action.data);
-
   CTG_API_LEAVE(code);
 }
 
@@ -2211,13 +2332,13 @@ _return:
 int32_t catalogGetTableMeta(SCatalog* pCtg, void *pTrans, const SEpSet* pMgmtEps, const SName* pTableName, STableMeta** pTableMeta) {
   CTG_API_ENTER();
 
-  CTG_API_LEAVE(ctgGetTableMeta(pCtg, pTrans, pMgmtEps, pTableName, false, pTableMeta, CTG_FLAG_UNKNOWN_STB));
+  CTG_API_LEAVE(ctgGetTableMeta(pCtg, pTrans, pMgmtEps, pTableName, pTableMeta, CTG_FLAG_UNKNOWN_STB));
 }
 
 int32_t catalogGetSTableMeta(SCatalog* pCtg, void * pTrans, const SEpSet* pMgmtEps, const SName* pTableName, STableMeta** pTableMeta) {
   CTG_API_ENTER();
 
-  CTG_API_LEAVE(ctgGetTableMeta(pCtg, pTrans, pMgmtEps, pTableName, false, pTableMeta, CTG_FLAG_STB));
+  CTG_API_LEAVE(ctgGetTableMeta(pCtg, pTrans, pMgmtEps, pTableName, pTableMeta, CTG_FLAG_STB));
 }
 
 int32_t catalogUpdateSTableMeta(SCatalog* pCtg, STableMetaRsp *rspMsg) {
@@ -2279,13 +2400,13 @@ int32_t catalogRefreshTableMeta(SCatalog* pCtg, void *pTrans, const SEpSet* pMgm
     CTG_API_LEAVE(TSDB_CODE_CTG_INVALID_INPUT);
   }
 
-  CTG_API_LEAVE(ctgRefreshTblMeta(pCtg, pTrans, pMgmtEps, pTableName, CTG_GEN_STB_FLAG(isSTable), NULL));
+  CTG_API_LEAVE(ctgRefreshTblMeta(pCtg, pTrans, pMgmtEps, pTableName, CTG_FLAG_FORCE_UPDATE | CTG_FLAG_MAKE_STB(isSTable), NULL));
 }
 
 int32_t catalogRefreshGetTableMeta(SCatalog* pCtg, void *pTrans, const SEpSet* pMgmtEps, const SName* pTableName, STableMeta** pTableMeta, int32_t isSTable) {
   CTG_API_ENTER();
 
-  CTG_API_LEAVE(ctgGetTableMeta(pCtg, pTrans, pMgmtEps, pTableName, true, pTableMeta, CTG_GEN_STB_FLAG(isSTable)));
+  CTG_API_LEAVE(ctgGetTableMeta(pCtg, pTrans, pMgmtEps, pTableName, pTableMeta, CTG_FLAG_FORCE_UPDATE | CTG_FLAG_MAKE_STB(isSTable)));
 }
 
 int32_t catalogGetTableDistVgInfo(SCatalog* pCtg, void *pRpc, const SEpSet* pMgmtEps, const SName* pTableName, SArray** pVgList) {
@@ -2309,7 +2430,7 @@ int32_t catalogGetTableDistVgInfo(SCatalog* pCtg, void *pRpc, const SEpSet* pMgm
 
   *pVgList = NULL;
   
-  CTG_ERR_JRET(ctgGetTableMeta(pCtg, pRpc, pMgmtEps, pTableName, false, &tbMeta, CTG_FLAG_UNKNOWN_STB));
+  CTG_ERR_JRET(ctgGetTableMeta(pCtg, pRpc, pMgmtEps, pTableName, &tbMeta, CTG_FLAG_UNKNOWN_STB));
 
   char db[TSDB_DB_FNAME_LEN] = {0};
   tNameGetFullDbName(pTableName, db);
@@ -2441,7 +2562,7 @@ int32_t catalogGetAllMeta(SCatalog* pCtg, void *pTrans, const SEpSet* pMgmtEps,
       SName *name = taosArrayGet(pReq->pTableName, i);
       STableMeta *pTableMeta = NULL;
       
-      CTG_ERR_JRET(ctgGetTableMeta(pCtg, pTrans, pMgmtEps, name, false, &pTableMeta, CTG_FLAG_UNKNOWN_STB));
+      CTG_ERR_JRET(ctgGetTableMeta(pCtg, pTrans, pMgmtEps, name, &pTableMeta, CTG_FLAG_UNKNOWN_STB));
 
       if (NULL == taosArrayPush(pRsp->pTableMeta, &pTableMeta)) {
         ctgError("taosArrayPush failed, idx:%d", i);
diff --git a/source/libs/catalog/test/catalogTests.cpp b/source/libs/catalog/test/catalogTests.cpp
index b7432429f4cf59b24a06b366b5db01f29211f78d..b417a645be2423a241af39667c302e8985159229 100644
--- a/source/libs/catalog/test/catalogTests.cpp
+++ b/source/libs/catalog/test/catalogTests.cpp
@@ -38,7 +38,7 @@
 namespace {
 
 extern "C" int32_t ctgGetTableMetaFromCache(struct SCatalog *pCatalog, const SName *pTableName, STableMeta **pTableMeta,
-                                            int32_t *exist, int32_t flag);
+                                            int32_t *exist, int32_t flag, uint64_t *dbId);
 extern "C" int32_t ctgDbgGetClusterCacheNum(struct SCatalog* pCatalog, int32_t type);
 extern "C" int32_t ctgActUpdateTbl(SCtgMetaAction *action);
 extern "C" int32_t ctgDbgEnableDebug(char *option);
@@ -57,12 +57,14 @@ enum {
   CTGT_RSP_CTBMETA,
   CTGT_RSP_STBMETA,
   CTGT_RSP_MSTBMETA,
+  CTGT_RSP_TBMETA_NOT_EXIST,
 };
 
 bool    ctgTestStop = false;
 bool    ctgTestEnableSleep = false;
+bool    ctgTestEnableLog = true;
 bool    ctgTestDeadLoop = false;
-int32_t ctgTestPrintNum = 200000;
+int32_t ctgTestPrintNum = 10000;
 int32_t ctgTestMTRunSec = 5;
 
 int32_t  ctgTestCurrentVgVersion = 0;
@@ -74,14 +76,18 @@ int32_t  ctgTestSVersion = 1;
 int32_t  ctgTestTVersion = 1;
 int32_t  ctgTestSuid = 2;
 uint64_t ctgTestDbId = 33;
+uint64_t ctgTestNormalTblUid = 1;
 
 uint64_t ctgTestClusterId = 0x1;
 char    *ctgTestDbname = "1.db1";
 char    *ctgTestTablename = "table1";
 char    *ctgTestCTablename = "ctable1";
 char    *ctgTestSTablename = "stable1";
+char    *ctgTestCurrentCTableName = NULL;
+char    *ctgTestCurrentTableName = NULL;
+char    *ctgTestCurrentSTableName = NULL;
 
-int32_t ctgTestRspFunc[10] = {0};
+int32_t ctgTestRspFunc[100] = {0};
 int32_t ctgTestRspIdx = 0;
 
 void sendCreateDbMsg(void *shandle, SEpSet *pEpSet) {
@@ -123,6 +129,10 @@ void sendCreateDbMsg(void *shandle, SEpSet *pEpSet) {
 }
 
 void ctgTestInitLogFile() {
+  if (!ctgTestEnableLog) {
+    return;
+  }
+  
   const char   *defaultLogFileNamePrefix = "taoslog";
   const int32_t maxLogFileNum = 10;
 
@@ -131,6 +141,8 @@ void ctgTestInitLogFile() {
   strcpy(tsLogDir, "/var/log/taos");
 
   ctgDbgEnableDebug("api");
+  ctgDbgEnableDebug("meta");
+  ctgDbgEnableDebug("cache");
   
   if (taosInitLog(defaultLogFileNamePrefix, maxLogFileNum) < 0) {
     printf("failed to open log file in directory:%s\n", tsLogDir);
@@ -321,7 +333,7 @@ void ctgTestRspTableMeta(void *shandle, SEpSet *pEpSet, SRpcMsg *pMsg, SRpcMsg *
   metaRsp.sversion = ctgTestSVersion;
   metaRsp.tversion = ctgTestTVersion;
   metaRsp.suid = 0;
-  metaRsp.tuid = 0x0000000000000001;
+  metaRsp.tuid = ctgTestNormalTblUid++;
   metaRsp.vgId = 8;
   metaRsp.pSchemas = (SSchema *)malloc((metaRsp.numOfTags + metaRsp.numOfColumns) * sizeof(SSchema));
 
@@ -349,10 +361,15 @@ void ctgTestRspTableMeta(void *shandle, SEpSet *pEpSet, SRpcMsg *pMsg, SRpcMsg *
   tFreeSTableMetaRsp(&metaRsp);
 }
 
+void ctgTestRspTableMetaNotExist(void *shandle, SEpSet *pEpSet, SRpcMsg *pMsg, SRpcMsg *pRsp) {
+  pRsp->code = CTG_ERR_CODE_TABLE_NOT_EXIST;
+}
+
+
 void ctgTestRspCTableMeta(void *shandle, SEpSet *pEpSet, SRpcMsg *pMsg, SRpcMsg *pRsp) {
   STableMetaRsp metaRsp = {0};
   strcpy(metaRsp.dbFName, ctgTestDbname);
-  strcpy(metaRsp.tbName, ctgTestCTablename);
+  strcpy(metaRsp.tbName, ctgTestCurrentCTableName ? ctgTestCurrentCTableName : ctgTestCTablename);
   strcpy(metaRsp.stbName, ctgTestSTablename);
   metaRsp.numOfTags = ctgTestTagNum;
   metaRsp.numOfColumns = ctgTestColNum;
@@ -399,7 +416,7 @@ void ctgTestRspCTableMeta(void *shandle, SEpSet *pEpSet, SRpcMsg *pMsg, SRpcMsg
 void ctgTestRspSTableMeta(void *shandle, SEpSet *pEpSet, SRpcMsg *pMsg, SRpcMsg *pRsp) {
   STableMetaRsp metaRsp = {0};
   strcpy(metaRsp.dbFName, ctgTestDbname);
-  strcpy(metaRsp.tbName, ctgTestSTablename);
+  strcpy(metaRsp.tbName, ctgTestCurrentSTableName ? ctgTestCurrentSTableName : ctgTestSTablename);
   strcpy(metaRsp.stbName, ctgTestSTablename);
   metaRsp.numOfTags = ctgTestTagNum;
   metaRsp.numOfColumns = ctgTestColNum;
@@ -409,7 +426,7 @@ void ctgTestRspSTableMeta(void *shandle, SEpSet *pEpSet, SRpcMsg *pMsg, SRpcMsg
   metaRsp.sversion = ctgTestSVersion;
   metaRsp.tversion = ctgTestTVersion;
   metaRsp.suid = ctgTestSuid;
-  metaRsp.tuid = ctgTestSuid;
+  metaRsp.tuid = ctgTestSuid++;
   metaRsp.vgId = 0;
   metaRsp.pSchemas = (SSchema *)malloc((metaRsp.numOfTags + metaRsp.numOfColumns) * sizeof(SSchema));
 
@@ -511,6 +528,9 @@ void ctgTestRspByIdx(void *shandle, SEpSet *pEpSet, SRpcMsg *pMsg, SRpcMsg *pRsp
     case CTGT_RSP_MSTBMETA:
       ctgTestRspMultiSTableMeta(shandle, pEpSet, pMsg, pRsp);
       break;
+    case CTGT_RSP_TBMETA_NOT_EXIST:
+      ctgTestRspTableMetaNotExist(shandle, pEpSet, pMsg, pRsp);
+      break;
     default:
       break;
   }
@@ -773,7 +793,7 @@ void *ctgTestGetCtableMetaThread(void *param) {
   strcpy(cn.tname, ctgTestCTablename);
 
   while (!ctgTestStop) {
-    code = ctgGetTableMetaFromCache(pCtg, &cn, &tbMeta, &exist, 0);
+    code = ctgGetTableMetaFromCache(pCtg, &cn, &tbMeta, &exist, 0, NULL);
     if (code || 0 == exist) {
       assert(0);
     }
@@ -828,7 +848,7 @@ void *ctgTestSetCtableMetaThread(void *param) {
   return NULL;
 }
 
-#if 0
+#if 1
 
 
 TEST(tableMeta, normalTable) {
@@ -860,7 +880,7 @@ TEST(tableMeta, normalTable) {
   ASSERT_EQ(vgInfo.epset.numOfEps, 3);
 
   while (0 == ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_DB_NUM)) {
-    usleep(10000);
+    usleep(50000);
   }
   
   ctgTestSetRspTableMeta();
@@ -870,6 +890,7 @@ TEST(tableMeta, normalTable) {
   ASSERT_EQ(code, 0);
   ASSERT_EQ(tableMeta->vgId, 8);
   ASSERT_EQ(tableMeta->tableType, TSDB_NORMAL_TABLE);
+  ASSERT_EQ(tableMeta->uid, ctgTestNormalTblUid - 1);
   ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
   ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
   ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
@@ -880,7 +901,7 @@ TEST(tableMeta, normalTable) {
   while (true) {
     uint32_t n = ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM);
     if (0 == n) {
-      usleep(10000);
+      usleep(50000);
     } else {
       break;
     }
@@ -975,7 +996,7 @@ TEST(tableMeta, childTableCase) {
   while (true) {
     uint32_t n = ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM);
     if (0 == n) {
-      usleep(10000);
+      usleep(50000);
     } else {
       break;
     }
@@ -994,7 +1015,7 @@ TEST(tableMeta, childTableCase) {
   ASSERT_EQ(tableMeta->tableInfo.precision, 1);
   ASSERT_EQ(tableMeta->tableInfo.rowSize, 12);
 
-  tableMeta = NULL;
+  tfree(tableMeta);
 
   strcpy(n.tname, ctgTestSTablename);
   code = catalogGetTableMeta(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &tableMeta);
@@ -1074,8 +1095,8 @@ TEST(tableMeta, superTableCase) {
   ASSERT_EQ(tableMeta->tableType, TSDB_SUPER_TABLE);
   ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
   ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
-  ASSERT_EQ(tableMeta->uid, ctgTestSuid);
-  ASSERT_EQ(tableMeta->suid, ctgTestSuid);
+  ASSERT_EQ(tableMeta->uid, ctgTestSuid - 1);
+  ASSERT_EQ(tableMeta->suid, ctgTestSuid - 1);
   ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
   ASSERT_EQ(tableMeta->tableInfo.numOfTags, ctgTestTagNum);
   ASSERT_EQ(tableMeta->tableInfo.precision, 1);
@@ -1084,7 +1105,7 @@ TEST(tableMeta, superTableCase) {
   while (true) {
     uint32_t n = ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM);
     if (0 == n) {
-      usleep(10000);
+      usleep(50000);
     } else {
       break;
     }
@@ -1111,7 +1132,7 @@ TEST(tableMeta, superTableCase) {
   while (true) {
     uint32_t n = ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM);
     if (2 != n) {
-      usleep(10000);
+      usleep(50000);
     } else {
       break;
     }
@@ -1199,8 +1220,8 @@ TEST(tableMeta, rmStbMeta) {
   ASSERT_EQ(tableMeta->tableType, TSDB_SUPER_TABLE);
   ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
   ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
-  ASSERT_EQ(tableMeta->uid, ctgTestSuid);
-  ASSERT_EQ(tableMeta->suid, ctgTestSuid);
+  ASSERT_EQ(tableMeta->uid, ctgTestSuid - 1);
+  ASSERT_EQ(tableMeta->suid, ctgTestSuid - 1);
   ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
   ASSERT_EQ(tableMeta->tableInfo.numOfTags, ctgTestTagNum);
   ASSERT_EQ(tableMeta->tableInfo.precision, 1);
@@ -1209,21 +1230,21 @@ TEST(tableMeta, rmStbMeta) {
   while (true) {
     uint32_t n = ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM);
     if (0 == n) {
-      usleep(10000);
+      usleep(50000);
     } else {
       break;
     }
   }
 
 
-  code = catalogRemoveStbMeta(pCtg, "1.db1", ctgTestDbId, ctgTestSTablename, ctgTestSuid);
+  code = catalogRemoveStbMeta(pCtg, "1.db1", ctgTestDbId, ctgTestSTablename, ctgTestSuid - 1);
   ASSERT_EQ(code, 0);
 
   while (true) {
     int32_t n = ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM);
     int32_t m = ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_STB_RENT_NUM);
     if (n || m) {
-      usleep(10000);
+      usleep(50000);
     } else {
       break;
     }
@@ -1269,8 +1290,8 @@ TEST(tableMeta, updateStbMeta) {
   ASSERT_EQ(tableMeta->tableType, TSDB_SUPER_TABLE);
   ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
   ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
-  ASSERT_EQ(tableMeta->uid, ctgTestSuid);
-  ASSERT_EQ(tableMeta->suid, ctgTestSuid);
+  ASSERT_EQ(tableMeta->uid, ctgTestSuid - 1);
+  ASSERT_EQ(tableMeta->suid, ctgTestSuid - 1);
   ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
   ASSERT_EQ(tableMeta->tableInfo.numOfTags, ctgTestTagNum);
   ASSERT_EQ(tableMeta->tableInfo.precision, 1);
@@ -1279,7 +1300,7 @@ TEST(tableMeta, updateStbMeta) {
   while (true) {
     uint32_t n = ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM);
     if (0 == n) {
-      usleep(10000);
+      usleep(50000);
     } else {
       break;
     }
@@ -1299,7 +1320,7 @@ TEST(tableMeta, updateStbMeta) {
     uint64_t n = 0;
     ctgDbgGetStatNum("runtime.qDoneNum", (void *)&n);
     if (n != 3) {
-      usleep(10000);
+      usleep(50000);
     } else {
       break;
     }
@@ -1330,6 +1351,499 @@ TEST(tableMeta, updateStbMeta) {
   memset(&gCtgMgmt.stat, 0, sizeof(gCtgMgmt.stat));
 }
 
+TEST(refreshGetMeta, normal2normal) {
+  struct SCatalog *pCtg = NULL;
+  void            *mockPointer = (void *)0x1;
+  SVgroupInfo      vgInfo = {0};
+  SArray          *vgList = NULL;
+
+  ctgTestInitLogFile();
+
+  memset(ctgTestRspFunc, 0, sizeof(ctgTestRspFunc));
+  ctgTestRspIdx = 0;
+  ctgTestRspFunc[0] = CTGT_RSP_VGINFO;
+  ctgTestRspFunc[1] = CTGT_RSP_TBMETA;
+  ctgTestRspFunc[2] = CTGT_RSP_TBMETA;
+  
+  ctgTestSetRspByIdx();
+
+  initQueryModuleMsgHandle();
+
+  int32_t code = catalogInit(NULL);
+  ASSERT_EQ(code, 0);
+
+  // sendCreateDbMsg(pConn->pTransporter, &pConn->pAppInfo->mgmtEp.epSet);
+
+  code = catalogGetHandle(ctgTestClusterId, &pCtg);
+  ASSERT_EQ(code, 0);
+
+  SName n = {.type = TSDB_TABLE_NAME_T, .acctId = 1};
+  strcpy(n.dbname, "db1");
+  strcpy(n.tname, ctgTestTablename);
+
+  code = catalogGetTableHashVgroup(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &vgInfo);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(vgInfo.vgId, 8);
+  ASSERT_EQ(vgInfo.epset.numOfEps, 3);
+
+  while (true) {
+    uint64_t n = 0;
+    ctgDbgGetStatNum("runtime.qDoneNum", (void *)&n);
+    if (n > 0) {
+      break;
+    }
+    usleep(50000);
+  }
+
+  STableMeta *tableMeta = NULL;
+  code = catalogGetTableMeta(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &tableMeta);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(tableMeta->vgId, 8);
+  ASSERT_EQ(tableMeta->tableType, TSDB_NORMAL_TABLE);
+  ASSERT_EQ(tableMeta->uid, ctgTestNormalTblUid - 1);  
+  ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
+  ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
+  ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
+  ASSERT_EQ(tableMeta->tableInfo.numOfTags, 0);
+  ASSERT_EQ(tableMeta->tableInfo.precision, 1);
+  ASSERT_EQ(tableMeta->tableInfo.rowSize, 12);
+  tfree(tableMeta);
+
+  while (0 == ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM)) {
+    usleep(50000);
+  }
+
+  code = catalogRefreshGetTableMeta(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &tableMeta, 0);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(tableMeta->vgId, 8);
+  ASSERT_EQ(tableMeta->tableType, TSDB_NORMAL_TABLE);
+  ASSERT_EQ(tableMeta->uid, ctgTestNormalTblUid - 1);  
+  ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
+  ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
+  ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
+  ASSERT_EQ(tableMeta->tableInfo.numOfTags, 0);
+  ASSERT_EQ(tableMeta->tableInfo.precision, 1);
+  ASSERT_EQ(tableMeta->tableInfo.rowSize, 12);
+  tfree(tableMeta);
+
+  catalogDestroy();
+  memset(&gCtgMgmt, 0, sizeof(gCtgMgmt));
+}
+
+TEST(refreshGetMeta, normal2notexist) {
+  struct SCatalog *pCtg = NULL;
+  void            *mockPointer = (void *)0x1;
+  SVgroupInfo      vgInfo = {0};
+  SArray          *vgList = NULL;
+
+  ctgTestInitLogFile();
+
+  memset(ctgTestRspFunc, 0, sizeof(ctgTestRspFunc));
+  ctgTestRspIdx = 0;
+  ctgTestRspFunc[0] = CTGT_RSP_VGINFO;
+  ctgTestRspFunc[1] = CTGT_RSP_TBMETA;
+  ctgTestRspFunc[2] = CTGT_RSP_TBMETA_NOT_EXIST;
+  
+  ctgTestSetRspByIdx();
+
+  initQueryModuleMsgHandle();
+
+  int32_t code = catalogInit(NULL);
+  ASSERT_EQ(code, 0);
+
+  // sendCreateDbMsg(pConn->pTransporter, &pConn->pAppInfo->mgmtEp.epSet);
+
+  code = catalogGetHandle(ctgTestClusterId, &pCtg);
+  ASSERT_EQ(code, 0);
+
+  SName n = {.type = TSDB_TABLE_NAME_T, .acctId = 1};
+  strcpy(n.dbname, "db1");
+  strcpy(n.tname, ctgTestTablename);
+
+  code = catalogGetTableHashVgroup(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &vgInfo);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(vgInfo.vgId, 8);
+  ASSERT_EQ(vgInfo.epset.numOfEps, 3);
+
+  while (true) {
+    uint64_t n = 0;
+    ctgDbgGetStatNum("runtime.qDoneNum", (void *)&n);
+    if (n > 0) {
+      break;
+    }
+    usleep(50000);
+  }
+
+  STableMeta *tableMeta = NULL;
+  code = catalogGetTableMeta(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &tableMeta);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(tableMeta->vgId, 8);
+  ASSERT_EQ(tableMeta->tableType, TSDB_NORMAL_TABLE);
+  ASSERT_EQ(tableMeta->uid, ctgTestNormalTblUid - 1);  
+  ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
+  ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
+  ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
+  ASSERT_EQ(tableMeta->tableInfo.numOfTags, 0);
+  ASSERT_EQ(tableMeta->tableInfo.precision, 1);
+  ASSERT_EQ(tableMeta->tableInfo.rowSize, 12);
+  tfree(tableMeta);
+
+  while (0 == ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM)) {
+    usleep(50000);
+  }
+
+  code = catalogRefreshGetTableMeta(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &tableMeta, 0);
+  ASSERT_EQ(code, CTG_ERR_CODE_TABLE_NOT_EXIST);
+  ASSERT_TRUE(tableMeta == NULL);
+
+  catalogDestroy();
+  memset(&gCtgMgmt, 0, sizeof(gCtgMgmt));
+}
+
+
+TEST(refreshGetMeta, normal2child) {
+  struct SCatalog *pCtg = NULL;
+  void            *mockPointer = (void *)0x1;
+  SVgroupInfo      vgInfo = {0};
+  SArray          *vgList = NULL;
+
+  ctgTestInitLogFile();
+
+  memset(ctgTestRspFunc, 0, sizeof(ctgTestRspFunc));
+  ctgTestRspIdx = 0;
+  ctgTestRspFunc[0] = CTGT_RSP_VGINFO;
+  ctgTestRspFunc[1] = CTGT_RSP_TBMETA;
+  ctgTestRspFunc[2] = CTGT_RSP_CTBMETA;
+  ctgTestRspFunc[3] = CTGT_RSP_STBMETA;
+  
+  ctgTestSetRspByIdx();
+
+  initQueryModuleMsgHandle();
+
+  int32_t code = catalogInit(NULL);
+  ASSERT_EQ(code, 0);
+
+  // sendCreateDbMsg(pConn->pTransporter, &pConn->pAppInfo->mgmtEp.epSet);
+
+  code = catalogGetHandle(ctgTestClusterId, &pCtg);
+  ASSERT_EQ(code, 0);
+
+  SName n = {.type = TSDB_TABLE_NAME_T, .acctId = 1};
+  strcpy(n.dbname, "db1");
+  strcpy(n.tname, ctgTestTablename);
+  ctgTestCurrentCTableName = ctgTestTablename;
+  ctgTestCurrentSTableName = ctgTestSTablename;
+
+  code = catalogGetTableHashVgroup(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &vgInfo);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(vgInfo.vgId, 8);
+  ASSERT_EQ(vgInfo.epset.numOfEps, 3);
+
+  while (true) {
+    uint64_t n = 0;
+    ctgDbgGetStatNum("runtime.qDoneNum", (void *)&n);
+    if (n > 0) {
+      break;
+    }
+    usleep(50000);
+  }
+
+  STableMeta *tableMeta = NULL;
+  code = catalogGetTableMeta(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &tableMeta);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(tableMeta->vgId, 8);
+  ASSERT_EQ(tableMeta->tableType, TSDB_NORMAL_TABLE);
+  ASSERT_EQ(tableMeta->uid, ctgTestNormalTblUid - 1);  
+  ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
+  ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
+  ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
+  ASSERT_EQ(tableMeta->tableInfo.numOfTags, 0);
+  ASSERT_EQ(tableMeta->tableInfo.precision, 1);
+  ASSERT_EQ(tableMeta->tableInfo.rowSize, 12);
+  tfree(tableMeta);
+
+  while (0 == ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM)) {
+    usleep(50000);
+  }
+
+  code = catalogRefreshGetTableMeta(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &tableMeta, 0);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(tableMeta->vgId, 9);
+  ASSERT_EQ(tableMeta->tableType, TSDB_CHILD_TABLE);
+  ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
+  ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
+  ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
+  ASSERT_EQ(tableMeta->tableInfo.numOfTags, ctgTestTagNum);
+  ASSERT_EQ(tableMeta->tableInfo.precision, 1);
+  ASSERT_EQ(tableMeta->tableInfo.rowSize, 12);
+  tfree(tableMeta);
+
+  catalogDestroy();
+  memset(&gCtgMgmt, 0, sizeof(gCtgMgmt));
+  ctgTestCurrentCTableName = NULL;
+  ctgTestCurrentSTableName = NULL;
+}
+
+TEST(refreshGetMeta, stable2child) {
+  struct SCatalog *pCtg = NULL;
+  void            *mockPointer = (void *)0x1;
+  SVgroupInfo      vgInfo = {0};
+  SArray          *vgList = NULL;
+
+  ctgTestInitLogFile();
+
+  memset(ctgTestRspFunc, 0, sizeof(ctgTestRspFunc));
+  ctgTestRspIdx = 0;
+  ctgTestRspFunc[0] = CTGT_RSP_VGINFO;
+  ctgTestRspFunc[1] = CTGT_RSP_STBMETA;
+  ctgTestRspFunc[2] = CTGT_RSP_STBMETA;
+  ctgTestRspFunc[3] = CTGT_RSP_CTBMETA;
+  ctgTestRspFunc[4] = CTGT_RSP_STBMETA;
+  
+  ctgTestSetRspByIdx();
+
+  initQueryModuleMsgHandle();
+
+  int32_t code = catalogInit(NULL);
+  ASSERT_EQ(code, 0);
+
+  // sendCreateDbMsg(pConn->pTransporter, &pConn->pAppInfo->mgmtEp.epSet);
+
+  code = catalogGetHandle(ctgTestClusterId, &pCtg);
+  ASSERT_EQ(code, 0);
+
+  SName n = {.type = TSDB_TABLE_NAME_T, .acctId = 1};
+  strcpy(n.dbname, "db1");
+  strcpy(n.tname, ctgTestTablename);
+  ctgTestCurrentSTableName = ctgTestTablename;
+  ctgTestCurrentCTableName = ctgTestTablename;
+
+  code = catalogGetTableHashVgroup(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &vgInfo);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(vgInfo.vgId, 8);
+  ASSERT_EQ(vgInfo.epset.numOfEps, 3);
+
+  while (true) {
+    uint64_t n = 0;
+    ctgDbgGetStatNum("runtime.qDoneNum", (void *)&n);
+    if (n > 0) {
+      break;
+    }
+    usleep(50000);
+  }
+
+  STableMeta *tableMeta = NULL;
+  code = catalogGetTableMeta(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &tableMeta);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(tableMeta->vgId, 0);
+  ASSERT_EQ(tableMeta->tableType, TSDB_SUPER_TABLE);
+  ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
+  ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
+  ASSERT_EQ(tableMeta->uid, ctgTestSuid - 1);
+  ASSERT_EQ(tableMeta->suid, ctgTestSuid - 1);
+  ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
+  ASSERT_EQ(tableMeta->tableInfo.numOfTags, ctgTestTagNum);
+  ASSERT_EQ(tableMeta->tableInfo.precision, 1);
+  ASSERT_EQ(tableMeta->tableInfo.rowSize, 12);
+  tfree(tableMeta);
+
+  while (0 == ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM)) {
+    usleep(50000);
+  }
+
+  ctgTestCurrentSTableName = ctgTestSTablename;
+  code = catalogRefreshGetTableMeta(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &tableMeta, 0);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(tableMeta->vgId, 9);
+  ASSERT_EQ(tableMeta->tableType, TSDB_CHILD_TABLE);
+  ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
+  ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
+  ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
+  ASSERT_EQ(tableMeta->tableInfo.numOfTags, ctgTestTagNum);
+  ASSERT_EQ(tableMeta->tableInfo.precision, 1);
+  ASSERT_EQ(tableMeta->tableInfo.rowSize, 12);
+  tfree(tableMeta);
+
+  catalogDestroy();
+  memset(&gCtgMgmt, 0, sizeof(gCtgMgmt));
+  ctgTestCurrentCTableName = NULL;
+  ctgTestCurrentSTableName = NULL;
+}
+
+TEST(refreshGetMeta, stable2stable) {
+  struct SCatalog *pCtg = NULL;
+  void            *mockPointer = (void *)0x1;
+  SVgroupInfo      vgInfo = {0};
+  SArray          *vgList = NULL;
+
+  ctgTestInitLogFile();
+
+  memset(ctgTestRspFunc, 0, sizeof(ctgTestRspFunc));
+  ctgTestRspIdx = 0;
+  ctgTestRspFunc[0] = CTGT_RSP_VGINFO;
+  ctgTestRspFunc[1] = CTGT_RSP_STBMETA;
+  ctgTestRspFunc[2] = CTGT_RSP_STBMETA;
+  ctgTestRspFunc[3] = CTGT_RSP_STBMETA;
+  ctgTestRspFunc[4] = CTGT_RSP_STBMETA;
+  
+  ctgTestSetRspByIdx();
+
+  initQueryModuleMsgHandle();
+
+  int32_t code = catalogInit(NULL);
+  ASSERT_EQ(code, 0);
+
+  // sendCreateDbMsg(pConn->pTransporter, &pConn->pAppInfo->mgmtEp.epSet);
+
+  code = catalogGetHandle(ctgTestClusterId, &pCtg);
+  ASSERT_EQ(code, 0);
+
+  SName n = {.type = TSDB_TABLE_NAME_T, .acctId = 1};
+  strcpy(n.dbname, "db1");
+  strcpy(n.tname, ctgTestTablename);
+  ctgTestCurrentSTableName = ctgTestTablename;
+
+  code = catalogGetTableHashVgroup(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &vgInfo);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(vgInfo.vgId, 8);
+  ASSERT_EQ(vgInfo.epset.numOfEps, 3);
+
+  while (true) {
+    uint64_t n = 0;
+    ctgDbgGetStatNum("runtime.qDoneNum", (void *)&n);
+    if (n > 0) {
+      break;
+    }
+    usleep(50000);
+  }
+
+  STableMeta *tableMeta = NULL;
+  code = catalogGetTableMeta(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &tableMeta);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(tableMeta->vgId, 0);
+  ASSERT_EQ(tableMeta->tableType, TSDB_SUPER_TABLE);
+  ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
+  ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
+  ASSERT_EQ(tableMeta->uid, ctgTestSuid - 1);
+  ASSERT_EQ(tableMeta->suid, ctgTestSuid - 1);
+  ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
+  ASSERT_EQ(tableMeta->tableInfo.numOfTags, ctgTestTagNum);
+  ASSERT_EQ(tableMeta->tableInfo.precision, 1);
+  ASSERT_EQ(tableMeta->tableInfo.rowSize, 12);
+  tfree(tableMeta);
+
+  while (0 == ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM)) {
+    usleep(50000);
+  }
+
+  code = catalogRefreshGetTableMeta(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &tableMeta, 0);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(tableMeta->vgId, 0);
+  ASSERT_EQ(tableMeta->tableType, TSDB_SUPER_TABLE);
+  ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
+  ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
+  ASSERT_EQ(tableMeta->uid, ctgTestSuid - 1);
+  ASSERT_EQ(tableMeta->suid, ctgTestSuid - 1);
+  ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
+  ASSERT_EQ(tableMeta->tableInfo.numOfTags, ctgTestTagNum);
+  ASSERT_EQ(tableMeta->tableInfo.precision, 1);
+  ASSERT_EQ(tableMeta->tableInfo.rowSize, 12);
+  tfree(tableMeta);
+
+  catalogDestroy();
+  memset(&gCtgMgmt, 0, sizeof(gCtgMgmt));
+  ctgTestCurrentCTableName = NULL;
+  ctgTestCurrentSTableName = NULL;
+}
+
+
+TEST(refreshGetMeta, child2stable) {
+  struct SCatalog *pCtg = NULL;
+  void            *mockPointer = (void *)0x1;
+  SVgroupInfo      vgInfo = {0};
+  SArray          *vgList = NULL;
+
+  ctgTestInitLogFile();
+
+  memset(ctgTestRspFunc, 0, sizeof(ctgTestRspFunc));
+  ctgTestRspIdx = 0;
+  ctgTestRspFunc[0] = CTGT_RSP_VGINFO;
+  ctgTestRspFunc[1] = CTGT_RSP_CTBMETA;
+  ctgTestRspFunc[2] = CTGT_RSP_STBMETA;
+  ctgTestRspFunc[3] = CTGT_RSP_STBMETA;
+  ctgTestRspFunc[4] = CTGT_RSP_STBMETA;
+  
+  ctgTestSetRspByIdx();
+
+  initQueryModuleMsgHandle();
+
+  int32_t code = catalogInit(NULL);
+  ASSERT_EQ(code, 0);
+
+  // sendCreateDbMsg(pConn->pTransporter, &pConn->pAppInfo->mgmtEp.epSet);
+
+  code = catalogGetHandle(ctgTestClusterId, &pCtg);
+  ASSERT_EQ(code, 0);
+
+  SName n = {.type = TSDB_TABLE_NAME_T, .acctId = 1};
+  strcpy(n.dbname, "db1");
+  strcpy(n.tname, ctgTestTablename);
+  ctgTestCurrentCTableName = ctgTestTablename;
+  ctgTestCurrentSTableName = ctgTestSTablename;
+
+  code = catalogGetTableHashVgroup(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &vgInfo);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(vgInfo.vgId, 8);
+  ASSERT_EQ(vgInfo.epset.numOfEps, 3);
+
+  while (true) {
+    uint64_t n = 0;
+    ctgDbgGetStatNum("runtime.qDoneNum", (void *)&n);
+    if (n > 0) {
+      break;
+    }
+    usleep(50000);
+  }
+
+  STableMeta *tableMeta = NULL;
+  code = catalogGetTableMeta(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &tableMeta);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(tableMeta->vgId, 9);
+  ASSERT_EQ(tableMeta->tableType, TSDB_CHILD_TABLE);
+  ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
+  ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
+  ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
+  ASSERT_EQ(tableMeta->tableInfo.numOfTags, ctgTestTagNum);
+  ASSERT_EQ(tableMeta->tableInfo.precision, 1);
+  ASSERT_EQ(tableMeta->tableInfo.rowSize, 12);
+  tfree(tableMeta);
+
+  while (2 != ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM)) {
+    usleep(50000);
+  }
+
+  ctgTestCurrentSTableName = ctgTestTablename;
+  code = catalogRefreshGetTableMeta(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &tableMeta, 0);
+  ASSERT_EQ(code, 0);
+  ASSERT_EQ(tableMeta->vgId, 0);
+  ASSERT_EQ(tableMeta->tableType, TSDB_SUPER_TABLE);
+  ASSERT_EQ(tableMeta->sversion, ctgTestSVersion);
+  ASSERT_EQ(tableMeta->tversion, ctgTestTVersion);
+  ASSERT_EQ(tableMeta->uid, ctgTestSuid - 1);
+  ASSERT_EQ(tableMeta->suid, ctgTestSuid - 1);
+  ASSERT_EQ(tableMeta->tableInfo.numOfColumns, ctgTestColNum);
+  ASSERT_EQ(tableMeta->tableInfo.numOfTags, ctgTestTagNum);
+  ASSERT_EQ(tableMeta->tableInfo.precision, 1);
+  ASSERT_EQ(tableMeta->tableInfo.rowSize, 12);
+  tfree(tableMeta);
+
+  catalogDestroy();
+  memset(&gCtgMgmt, 0, sizeof(gCtgMgmt));
+  ctgTestCurrentCTableName = NULL;
+  ctgTestCurrentSTableName = NULL;
+}
+
+
 TEST(tableDistVgroup, normalTable) {
   struct SCatalog *pCtg = NULL;
   void            *mockPointer = (void *)0x1;
@@ -1499,11 +2013,15 @@ TEST(dbVgroup, getSetDbVgroupCase) {
   ASSERT_EQ(code, 0);
   ASSERT_EQ(taosArrayGetSize((const SArray *)vgList), ctgTestVgNum);
 
-  while (0 == ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_DB_RENT_NUM)) {
-    usleep(10000);
+  while (true) {
+    uint64_t n = 0;
+    ctgDbgGetStatNum("runtime.qDoneNum", (void *)&n);
+    if (n > 0) {
+      break;
+    }
+    usleep(50000);
   }
 
-
   code = catalogGetTableHashVgroup(pCtg, mockPointer, (const SEpSet *)mockPointer, &n, &vgInfo);
   ASSERT_EQ(code, 0);
   ASSERT_EQ(vgInfo.vgId, 8);
@@ -1525,7 +2043,7 @@ TEST(dbVgroup, getSetDbVgroupCase) {
     uint64_t n = 0;
     ctgDbgGetStatNum("runtime.qDoneNum", (void *)&n);
     if (n != 3) {
-      usleep(10000);
+      usleep(50000);
     } else {
       break;
     }
@@ -1749,7 +2267,7 @@ TEST(rentTest, allRent) {
     ASSERT_EQ(tableMeta->tableInfo.rowSize, 12);
 
     while (ctgDbgGetClusterCacheNum(pCtg, CTG_DBG_META_NUM) < i) {
-      usleep(10000);
+      usleep(50000);
     }
 
     code = catalogGetExpiredDBs(pCtg, &dbs, &num);