diff --git a/include/common/tglobal.h b/include/common/tglobal.h
index a2ec4d2c03..b0a1aa6117 100644
--- a/include/common/tglobal.h
+++ b/include/common/tglobal.h
@@ -85,6 +85,7 @@ extern int64_t tsVndCommitMaxIntervalMs;
 extern int64_t tsMndSdbWriteDelta;
 extern int64_t tsMndLogRetention;
 extern int8_t  tsGrant;
+extern int32_t tsMndGrantMode;
 extern bool    tsMndSkipGrant;
 
 // dnode
diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index ba05b2b2f4..d3fbedbd7b 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -77,6 +77,7 @@ int64_t tsVndCommitMaxIntervalMs = 600 * 1000;
 int64_t tsMndSdbWriteDelta = 200;
 int64_t tsMndLogRetention = 2000;
 int8_t  tsGrant = 1;
+int32_t tsMndGrantMode = 0;
 bool    tsMndSkipGrant = false;
 
 // dnode
@@ -512,6 +513,7 @@ static int32_t taosAddServerCfg(SConfig *pCfg) {
 
   if (cfgAddInt64(pCfg, "mndSdbWriteDelta", tsMndSdbWriteDelta, 20, 10000, 0) != 0) return -1;
   if (cfgAddInt64(pCfg, "mndLogRetention", tsMndLogRetention, 500, 10000, 0) != 0) return -1;
+  if (cfgAddInt32(pCfg, "grantMode", tsMndGrantMode, 0, 10000, 0) != 0) return -1;
   if (cfgAddBool(pCfg, "skipGrant", tsMndSkipGrant, 0) != 0) return -1;
 
   if (cfgAddBool(pCfg, "monitor", tsEnableMonitor, 0) != 0) return -1;
@@ -921,6 +923,7 @@ static int32_t taosSetServerCfg(SConfig *pCfg) {
   tsMndSdbWriteDelta = cfgGetItem(pCfg, "mndSdbWriteDelta")->i64;
   tsMndLogRetention = cfgGetItem(pCfg, "mndLogRetention")->i64;
   tsMndSkipGrant = cfgGetItem(pCfg, "skipGrant")->bval;
+  tsMndGrantMode = cfgGetItem(pCfg, "grantMode")->i32;
 
   tsStartUdfd = cfgGetItem(pCfg, "udf")->bval;
   tstrncpy(tsUdfdResFuncs, cfgGetItem(pCfg, "udfdResFuncs")->str, sizeof(tsUdfdResFuncs));
diff --git a/source/dnode/mnode/impl/src/mndDnode.c b/source/dnode/mnode/impl/src/mndDnode.c
index 100513b932..d8ee18e3ca 100644
--- a/source/dnode/mnode/impl/src/mndDnode.c
+++ b/source/dnode/mnode/impl/src/mndDnode.c
@@ -655,6 +655,7 @@ static int32_t mndConfigDnode(SMnode *pMnode, SRpcMsg *pReq, SMCfgDnodeReq *pCfg
   STrans    *pTrans = NULL;
   SDnodeObj *pDnode = NULL;
   bool       cfgAll = pCfgReq->dnodeId == -1;
+  int32_t    iter = 0;
 
   SSdb *pSdb = pMnode->pSdb;
   void *pIter = NULL;
@@ -662,7 +663,8 @@ static int32_t mndConfigDnode(SMnode *pMnode, SRpcMsg *pReq, SMCfgDnodeReq *pCfg
     if (cfgAll) {
       pIter = sdbFetch(pSdb, SDB_DNODE, pIter, (void **)&pDnode);
       if (pIter == NULL) break;
-    } else if(!(pDnode = mndAcquireDnode(pMnode, pCfgReq->dnodeId))) {
+      ++iter;
+    } else if (!(pDnode = mndAcquireDnode(pMnode, pCfgReq->dnodeId))) {
       goto _OVER;
     }
 
@@ -708,6 +710,13 @@ _OVER:
   } else {
     mndReleaseDnode(pMnode, pDnode);
   }
+
+  if (iter > 15) {
+    tsGrantHBInterval = 10;
+  } else {
+    tsGrantHBInterval = 5;
+  }
+
   mndTransDrop(pTrans);
   sdbFreeRaw(pRaw);
   return terrno;
diff --git a/source/dnode/mnode/impl/src/mndMain.c b/source/dnode/mnode/impl/src/mndMain.c
index 5db9384f5a..79abc57a39 100644
--- a/source/dnode/mnode/impl/src/mndMain.c
+++ b/source/dnode/mnode/impl/src/mndMain.c
@@ -156,7 +156,6 @@ static void mndPullupTelem(SMnode *pMnode) {
 
 static void mndPullupGrant(SMnode *pMnode) {
   mTrace("pullup grant msg");
-  printf("%s:%d @@@@@@@@@@@ mndPullupGrant @@@@@@@@@@@ %d \n", __func__, __LINE__, taosGetTimestampSec());
   int32_t contLen = 0;
   void   *pReq = mndBuildTimerMsg(&contLen);
   if (pReq != NULL) {