[TD-533] add handle functions

src/mnode/inc/mnodeVgroup.h

@@ -35,6 +35,7 @@ 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);
 void    mnodeDropVgroup(SVgObj *pVgroup, void *ahandle);

src/mnode/src/mnodeDnode.c

@@ -381,6 +381,10 @@ static int32_t mnodeProcessDnodeStatusMsg(SMnodeMsg *pMsg) {
     balanceNotify();
   }
 
+  if (openVnodes != pDnode->openVnodes) {
+    mnodeCheckUnCreatedVgroup(pDnode, pStatus->load, openVnodes);
+  }
+
   pDnode->lastAccess = tsAccessSquence;
   mnodeDecDnodeRef(pDnode);
 

src/mnode/src/mnodeVgroup.c

@@ -256,6 +256,8 @@ void mnodeUpdateVgroup(SVgObj *pVgroup) {
   mnodeSendCreateVgroupMsg(pVgroup, NULL);
 }
 
+void mnodeCheckUnCreatedVgroup(SDnodeObj *pDnode, SVnodeLoad *pVloads, int32_t openVnodes) {}
+
 void mnodeUpdateVgroupStatus(SVgObj *pVgroup, SDnodeObj *pDnode, SVnodeLoad *pVload) {
   bool dnodeExist = false;
   for (int32_t i = 0; i < pVgroup->numOfVnodes; ++i) {