diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index 97ba56bd76aacc9c7b3b42214006f19808c5f41d..1316847f485006f974431ae1e673c0761f41866b 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -76,9 +76,10 @@ typedef enum {
   HEARTBEAT_TYPE_MAX
 } EHbType;
 
-typedef enum {
+enum {
   HEARTBEAT_KEY_DBINFO = 1,
   HEARTBEAT_KEY_STBINFO,
+  HEARTBEAT_KEY_MQ_TMP,
 };
 
 
diff --git a/include/libs/catalog/catalog.h b/include/libs/catalog/catalog.h
index 9c9e370dcaae1dffb64b29c36a002216d6ffe559..0b465b7b4e01f65d41fda565ca43f16c1e9b7853 100644
--- a/include/libs/catalog/catalog.h
+++ b/include/libs/catalog/catalog.h
@@ -99,6 +99,8 @@ int32_t catalogGetDBVgroup(struct SCatalog* pCatalog, void *pTransporter, const
 
 int32_t catalogUpdateDBVgroup(struct SCatalog* pCatalog, const char* dbName, SDBVgroupInfo* dbInfo);
 
+int32_t catalogRemoveDBVgroup(struct SCatalog* pCatalog, SDbVgVersion* dbInfo);
+
 /**
  * Get a table's meta data. 
  * @param pCatalog (input, got with catalogGetHandle)
diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index a25d79bf30ccb8e75a803848851c845e5e88adf4..b346e54addabaa0ed2e478127b6b3359c1434557 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -35,10 +35,6 @@ extern "C" {
 
 typedef struct SAppInstInfo SAppInstInfo;
 
-typedef int32_t (*FHbRspHandle)(SClientHbRsp* pReq);
-
-typedef int32_t (*FHbReqHandle)(SClientHbKey *connKey, void* param, SClientHbReq *req);
-
 typedef struct SHbConnInfo {
   void         *param;
   SClientHbReq *req;
@@ -60,6 +56,12 @@ typedef struct SAppHbMgr {
   SHashObj* connInfo;      // hash<SClientHbKey, SHbConnInfo>
 } SAppHbMgr;
 
+
+typedef int32_t (*FHbRspHandle)(struct SAppHbMgr *pAppHbMgr, SClientHbRsp* pRsp);
+
+typedef int32_t (*FHbReqHandle)(SClientHbKey *connKey, void* param, SClientHbReq *req);
+
+
 typedef struct SClientHbMgr {
   int8_t inited;
   // ctl
@@ -223,11 +225,11 @@ void hbMgrCleanUp();
 int  hbHandleRsp(SClientHbBatchRsp* hbRsp);
 
 // cluster level
-SAppHbMgr* appHbMgrInit(SAppInstInfo* pAppInstInfo);
+SAppHbMgr* appHbMgrInit(SAppInstInfo* pAppInstInfo, char *key);
 void appHbMgrCleanup(SAppHbMgr* pAppHbMgr);
 
 // conn level
-int  hbRegisterConn(SAppHbMgr* pAppHbMgr, SClientHbKey connKey, FGetConnInfo func);
+int  hbRegisterConn(SAppHbMgr* pAppHbMgr, int32_t connId, int64_t clusterId, int32_t hbType);
 void hbDeregisterConn(SAppHbMgr* pAppHbMgr, SClientHbKey connKey);
 
 int hbAddConnInfo(SAppHbMgr* pAppHbMgr, SClientHbKey connKey, void* key, void* value, int32_t keyLen, int32_t valueLen);
diff --git a/source/client/src/clientHb.c b/source/client/src/clientHb.c
index 8fc9fd086ce3c2443d2c535558237424b7235c3d..0ab3089f13cf619acccc820236c9b8534cffbb43 100644
--- a/source/client/src/clientHb.c
+++ b/source/client/src/clientHb.c
@@ -15,6 +15,8 @@
 
 #include "clientInt.h"
 #include "trpc.h"
+#include "catalog.h"
+#include "clientLog.h"
 
 static SClientHbMgr clientHbMgr = {0};
 
@@ -25,6 +27,67 @@ static int32_t hbMqHbRspHandle(struct SAppHbMgr *pAppHbMgr, SClientHbRsp* pRsp)
   return 0;
 }
 
+static int32_t hbProcessDBInfoRsp(void *value, int32_t valueLen, struct SCatalog *pCatalog) {
+  int32_t msgLen = 0;
+  int32_t code = 0;
+  
+  while (msgLen < valueLen) {
+    SUseDbRsp *rsp = (SUseDbRsp *)((char *)value + msgLen);
+
+    rsp->vgVersion = ntohl(rsp->vgVersion);
+    rsp->vgNum = ntohl(rsp->vgNum);
+    rsp->uid = be64toh(rsp->uid);
+    
+    if (rsp->vgVersion < 0) {
+      SDbVgVersion dbInfo;
+      strcpy(dbInfo.dbName, rsp->db);
+      dbInfo.dbId = rsp->uid;
+      dbInfo.vgVersion = rsp->vgVersion;
+      
+      code = catalogRemoveDBVgroup(pCatalog, &dbInfo);
+    } else {
+      SDBVgroupInfo vgInfo = {0};
+      vgInfo.dbId = rsp->uid;
+      vgInfo.vgVersion = rsp->vgVersion;
+      vgInfo.hashMethod = rsp->hashMethod;
+      vgInfo.vgInfo = taosHashInit(rsp->vgNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_ENTRY_LOCK);
+      if (NULL == vgInfo.vgInfo) {
+        tscError("hash init[%d] failed", rsp->vgNum);
+        return TSDB_CODE_TSC_OUT_OF_MEMORY;
+      }
+
+      for (int32_t i = 0; i < rsp->vgNum; ++i) {
+        rsp->vgroupInfo[i].vgId = ntohl(rsp->vgroupInfo[i].vgId);
+        rsp->vgroupInfo[i].hashBegin = ntohl(rsp->vgroupInfo[i].hashBegin);
+        rsp->vgroupInfo[i].hashEnd = ntohl(rsp->vgroupInfo[i].hashEnd);
+
+        for (int32_t n = 0; n < rsp->vgroupInfo[i].numOfEps; ++n) {
+          rsp->vgroupInfo[i].epAddr[n].port = ntohs(rsp->vgroupInfo[i].epAddr[n].port);
+        }
+
+        if (0 != taosHashPut(vgInfo.vgInfo, &rsp->vgroupInfo[i].vgId, sizeof(rsp->vgroupInfo[i].vgId), &rsp->vgroupInfo[i], sizeof(rsp->vgroupInfo[i]))) {
+          tscError("hash push failed, errno:%d", errno);
+          taosHashCleanup(vgInfo.vgInfo);
+          return TSDB_CODE_TSC_OUT_OF_MEMORY;
+        }
+      }  
+      
+      code = catalogUpdateDBVgroup(pCatalog, rsp->db, &vgInfo);
+      if (code) {
+        taosHashCleanup(vgInfo.vgInfo);
+      }
+    }
+
+    if (code) {
+      return code;
+    }
+
+    msgLen += sizeof(SUseDbRsp) + rsp->vgNum * sizeof(SVgroupInfo);
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
 static int32_t hbQueryHbRspHandle(struct SAppHbMgr *pAppHbMgr, SClientHbRsp* pRsp) {
   SHbConnInfo * info = taosHashGet(pAppHbMgr->connInfo, &pRsp->connKey, sizeof(SClientHbKey));
   if (NULL == info) {
@@ -36,9 +99,24 @@ static int32_t hbQueryHbRspHandle(struct SAppHbMgr *pAppHbMgr, SClientHbRsp* pRs
   for (int32_t i = 0; i < kvNum; ++i) {
     SKv *kv = taosArrayGet(pRsp->info, i);
     switch (kv->key) {
-      case HEARTBEAT_KEY_DBINFO:
-
+      case HEARTBEAT_KEY_DBINFO: {
+        if (kv->valueLen <= 0 || NULL == kv->value) {
+          tscError("invalid hb db info, len:%d, value:%p", kv->valueLen, kv->value);
+          break;
+        }
+
+        int64_t *clusterId = (int64_t *)info->param;
+        struct SCatalog *pCatalog = NULL;
+        
+        int32_t code = catalogGetHandle(*clusterId, &pCatalog);
+        if (code != TSDB_CODE_SUCCESS) {
+          tscWarn("catalogGetHandle failed, clusterId:%"PRIx64", error:%s", *clusterId, tstrerror(code));
+          break;
+        }
+
+        hbProcessDBInfoRsp(kv->value, kv->valueLen, pCatalog);
         break;
+      }
       case HEARTBEAT_KEY_STBINFO:
 
         break;
@@ -56,8 +134,10 @@ static int32_t hbMqAsyncCallBack(void* param, const SDataBuf* pMsg, int32_t code
     return -1;
   }
   char *key = (char *)param;
-  SClientHbBatchRsp* pRsp = (SClientHbBatchRsp*) pMsg->pData;
-  int32_t reqNum = taosArrayGetSize(pRsp->rsps);
+  SClientHbBatchRsp pRsp = {0};
+  tDeserializeSClientHbBatchRsp(pMsg->pData, &pRsp);
+  
+  int32_t reqNum = taosArrayGetSize(pRsp.rsps);
 
   SAppInstInfo** pInst = taosHashGet(appInfo.pInstMap, key, strlen(key));
   if (pInst == NULL || NULL == *pInst) {
@@ -66,7 +146,7 @@ static int32_t hbMqAsyncCallBack(void* param, const SDataBuf* pMsg, int32_t code
   }
 
   for (int32_t i = 0; i < reqNum; ++i) {
-    SClientHbRsp* rsp = taosArrayGet(pRsp->rsps, i);
+    SClientHbRsp* rsp = taosArrayGet(pRsp.rsps, i);
     code = (*clientHbMgr.rspHandle[rsp->connKey.hbType])((*pInst)->pAppHbMgr, rsp);
     if (code) {
       break;
@@ -145,8 +225,9 @@ void hbFreeReqKvHash(SHashObj*      info) {
   }
 }
 
-void hbFreeReq(SClientHbReq *req) {
-  hbFreeReqKvHash(req->info);
+void hbFreeReq(void *req) {
+  SClientHbReq *pReq = (SClientHbReq *)req;
+  hbFreeReqKvHash(pReq->info);
 }
 
 
@@ -305,9 +386,9 @@ SAppHbMgr* appHbMgrInit(SAppInstInfo* pAppInstInfo, char *key) {
   }
   pAppHbMgr->activeInfo->freeFp = tFreeClientHbReq;
   // init getInfoFunc
-  pAppHbMgr->getInfoFuncs = taosHashInit(64, hbKeyHashFunc, 1, HASH_ENTRY_LOCK);
+  pAppHbMgr->connInfo = taosHashInit(64, hbKeyHashFunc, 1, HASH_ENTRY_LOCK);
 
-  if (pAppHbMgr->getInfoFuncs == NULL) {
+  if (pAppHbMgr->connInfo == NULL) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     free(pAppHbMgr);
     return NULL;
@@ -325,7 +406,7 @@ void appHbMgrCleanup(SAppHbMgr* pAppHbMgr) {
     SAppHbMgr* pTarget = taosArrayGetP(clientHbMgr.appHbMgrs, i);
     if (pAppHbMgr == pTarget) {
       taosHashCleanup(pTarget->activeInfo);
-      taosHashCleanup(pTarget->getInfoFuncs);
+      taosHashCleanup(pTarget->connInfo);
     }
   }
 
@@ -357,23 +438,6 @@ void hbMgrCleanUp() {
   taosArrayDestroy(clientHbMgr.appHbMgrs);
 }
 
-int hbHandleRsp(SClientHbBatchRsp* hbRsp) {
-  int64_t reqId = hbRsp->reqId;
-  int64_t rspId = hbRsp->rspId;
-
-  SArray* rsps = hbRsp->rsps;
-  int32_t sz = taosArrayGetSize(rsps);
-  for (int i = 0; i < sz; i++) {
-    SClientHbRsp* pRsp = taosArrayGet(rsps, i);
-    if (pRsp->connKey.hbType < HEARTBEAT_TYPE_MAX) {
-      clientHbMgr.handle[pRsp->connKey.hbType](pRsp);
-    } else {
-      // discard rsp
-    }
-  }
-  return 0;
-}
-
 int hbRegisterConnImpl(SAppHbMgr* pAppHbMgr, SClientHbKey connKey, SHbConnInfo *info) {
   // init hash in activeinfo
   void* data = taosHashGet(pAppHbMgr->activeInfo, &connKey, sizeof(SClientHbKey));
@@ -421,7 +485,7 @@ int hbRegisterConn(SAppHbMgr* pAppHbMgr, int32_t connId, int64_t clusterId, int3
 
 void hbDeregisterConn(SAppHbMgr* pAppHbMgr, SClientHbKey connKey) {
   taosHashRemove(pAppHbMgr->activeInfo, &connKey, sizeof(SClientHbKey));
-  taosHashRemove(pAppHbMgr->getInfoFuncs, &connKey, sizeof(SClientHbKey));
+  taosHashRemove(pAppHbMgr->connInfo, &connKey, sizeof(SClientHbKey));
   atomic_sub_fetch_32(&pAppHbMgr->connKeyCnt, 1);
 }
 
diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index a39a0d637bfc948af6d1f29db395e1af99f9bdf1..ce0e5949557ec585240b52f146e8eb3fbd9b1000 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -434,13 +434,8 @@ SArray* tmqGetConnInfo(SClientHbKey connKey, void* param) {
     return NULL;
   }
   SKv kv = {0};
-  kv.key = malloc(256);
-  if (kv.key == NULL) {
-    taosArrayDestroy(pArray);
-    return NULL;
-  }
-  strcpy(kv.key, "mq-tmp");
-  kv.keyLen = strlen("mq-tmp") + 1;
+  kv.key = HEARTBEAT_KEY_MQ_TMP;
+
   SMqHbMsg* pMqHb = malloc(sizeof(SMqHbMsg));
   if (pMqHb == NULL) {
     return pArray;
diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index 1e9131c8005d1c5ed962ba064af38d169a177bba..0d1576d03c26081b2b8852ecbfc4ada55e17d8fe 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -114,7 +114,7 @@ void *tDeserializeSClientHbReq(void *buf, SClientHbReq *pReq) {
   for(int i = 0; i < kvNum; i++) {
     SKv kv;
     buf = taosDecodeSKv(buf, &kv);
-    taosHashPut(pReq->info, kv.key, sizeof(kv.key), kv.value, kv.valueLen);
+    taosHashPut(pReq->info, &kv.key, sizeof(kv.key), kv.value, kv.valueLen);
   }
 
   return buf;
diff --git a/source/dnode/mnode/impl/inc/mndDb.h b/source/dnode/mnode/impl/inc/mndDb.h
index 91f502be7d94e29c410834bedf8a10eddf76783b..5a3e6ed26e4b65875c74a00024f3cbdd3319db16 100644
--- a/source/dnode/mnode/impl/inc/mndDb.h
+++ b/source/dnode/mnode/impl/inc/mndDb.h
@@ -26,6 +26,7 @@ int32_t mndInitDb(SMnode *pMnode);
 void    mndCleanupDb(SMnode *pMnode);
 SDbObj *mndAcquireDb(SMnode *pMnode, char *db);
 void    mndReleaseDb(SMnode *pMnode, SDbObj *pDb);
+int32_t mndValidateDBInfo(SMnode *pMnode, SDbVgVersion *dbs, int32_t num, void **rsp, int32_t *rspLen);
 
 #ifdef __cplusplus
 }
diff --git a/source/dnode/mnode/impl/src/mndProfile.c b/source/dnode/mnode/impl/src/mndProfile.c
index 8296cd2c6c90afb24b9167f7f3c0da1b02b34bb7..49265fa35ebe2674744468c4fab03f8db8ec8e46 100644
--- a/source/dnode/mnode/impl/src/mndProfile.c
+++ b/source/dnode/mnode/impl/src/mndProfile.c
@@ -346,8 +346,6 @@ static int32_t mndProcessHeartBeatReq(SMnodeMsg *pReq) {
   int sz = taosArrayGetSize(pArray);
 
   SClientHbBatchRsp batchRsp = {0};
-  batchRsp.key = batchReq.key;
-  batchRsp.keyLen = batchReq.keyLen;
   batchRsp.rsps = taosArrayInit(0, sizeof(SClientHbRsp));
 
   for (int i = 0; i < sz; i++) {
@@ -365,17 +363,18 @@ static int32_t mndProcessHeartBeatReq(SMnodeMsg *pReq) {
         SKv* kv = pIter;
       
         switch (kv->key) {
-          case HEARTBEAT_KEY_DBINFO:
+          case HEARTBEAT_KEY_DBINFO: {
             void *rspMsg = NULL;
             int32_t rspLen = 0;
             mndValidateDBInfo(pMnode, (SDbVgVersion *)kv->value, kv->valueLen/sizeof(SDbVgVersion), &rspMsg, &rspLen);
             if (rspMsg && rspLen > 0) {
               SKv kv = {.key = HEARTBEAT_KEY_DBINFO, .valueLen = rspLen, .value = rspMsg};
-              taosArrayPush(hbRsp->info, &kv);
+              taosArrayPush(hbRsp.info, &kv);
               
               taosArrayPush(batchRsp.rsps, &hbRsp);
             }
             break;
+          }
           case HEARTBEAT_KEY_STBINFO:
 
             break;
@@ -412,7 +411,6 @@ static int32_t mndProcessHeartBeatReq(SMnodeMsg *pReq) {
     taosArrayDestroy(rsp->info);
   }
 
-  tfree(batchRsp.key);
   taosArrayDestroy(batchRsp.rsps);
   pReq->contLen = tlen;
   pReq->pCont = buf;
diff --git a/source/dnode/mnode/impl/test/profile/profile.cpp b/source/dnode/mnode/impl/test/profile/profile.cpp
index 4ad979cdd33a8e4d128737eb8697f47314328c41..991b4c1249ab7e390817cd7bdf18011efe99b137 100644
--- a/source/dnode/mnode/impl/test/profile/profile.cpp
+++ b/source/dnode/mnode/impl/test/profile/profile.cpp
@@ -102,11 +102,10 @@ TEST_F(MndTestProfile, 04_HeartBeatMsg) {
   req.connKey = {.connId = 123, .hbType = HEARTBEAT_TYPE_MQ};
   req.info = taosHashInit(64, hbKeyHashFunc, 1, HASH_ENTRY_LOCK);
   SKv kv;
-  kv.key = (void*)"abc";
-  kv.keyLen = 4;
+  kv.key = 123;
   kv.value = (void*)"bcd";
   kv.valueLen = 4;
-  taosHashPut(req.info, kv.key, kv.keyLen, kv.value, kv.valueLen);
+  taosHashPut(req.info, &kv.key, sizeof(kv.key), kv.value, kv.valueLen);
   taosArrayPush(batchReq.reqs, &req);
 
   int32_t tlen = tSerializeSClientHbBatchReq(NULL, &batchReq);
diff --git a/source/libs/catalog/src/catalog.c b/source/libs/catalog/src/catalog.c
index 3ce71ccb440054c7c7d3c3fccf5c82d8f9aa176f..07086e49ee6e50141bb5510c8661c64893ee0f53 100644
--- a/source/libs/catalog/src/catalog.c
+++ b/source/libs/catalog/src/catalog.c
@@ -1236,6 +1236,8 @@ int32_t catalogUpdateDBVgroup(struct SCatalog* pCatalog, const char* dbName, SDB
   }
 
   bool newAdded = false;
+  
+  dbInfo->lock = 0;
   if (taosHashPutExt(pCatalog->dbCache.cache, dbName, strlen(dbName), dbInfo, sizeof(*dbInfo), &newAdded) != 0) {
     ctgError("taosHashPutExt db vgroup to cache failed, db:%s", dbName);
     CTG_ERR_JRET(TSDB_CODE_CTG_MEM_ERROR);
@@ -1269,7 +1271,7 @@ int32_t catalogRemoveDBVgroup(struct SCatalog* pCatalog, SDbVgVersion* dbInfo) {
   bool removed = false;
   
   if (NULL == pCatalog || NULL == dbInfo) {
-    CTG_ERR_JRET(TSDB_CODE_CTG_INVALID_INPUT);
+    CTG_ERR_RET(TSDB_CODE_CTG_INVALID_INPUT);
   }
 
   if (NULL == pCatalog->dbCache.cache) {