fix add mnode error

src/mnode/src/mgmtDnode.c

@@ -39,6 +39,7 @@
 void   *tsDnodeSdb = NULL;
 int32_t tsDnodeUpdateSize = 0;
 int32_t tsAccessSquence = 0;
+extern void *  tsMnodeSdb;
 extern void *  tsVgroupSdb;
 
 static int32_t mgmtCreateDnode(uint32_t ip);
@@ -101,7 +102,13 @@ static int32_t mgmtDnodeActionDelete(SSdbOper *pOper) {
     }
   }
 
-  mgmtDropMnode(pDnode->dnodeId);
+  SMnodeObj *pMnode = mgmtGetMnode(pDnode->dnodeId);
+  if (pMnode != NULL) {
+    SSdbOper oper = {.type = SDB_OPER_LOCAL, .table = tsMnodeSdb, .pObj = pMnode};
+    sdbDeleteRow(&oper);
+    mgmtReleaseMnode(pMnode);
+  }
+
   balanceNotify();
 
   mTrace("dnode:%d, all vgroups:%d is dropped from sdb", pDnode->dnodeId, numOfVgroups);

src/mnode/src/mgmtMnode.c

@@ -30,7 +30,7 @@
 #include "mgmtShell.h"
 #include "mgmtUser.h"
 
-static void *  tsMnodeSdb = NULL;
+void * tsMnodeSdb = NULL;
 static int32_t tsMnodeUpdateSize = 0;
 static int32_t mgmtGetMnodeMeta(STableMetaMsg *pMeta, SShowObj *pShow, void *pConn);
 static int32_t mgmtRetrieveMnodes(SShowObj *pShow, char *data, int32_t rows, void *pConn);

src/plugins/monitor/src/monitorSystem.c

@@ -397,6 +397,7 @@ void monitorSaveAcctLog(char *acctId, int64_t currentPointsPerSecond, int64_t ma
                         int64_t totalOutbound, int64_t maxOutbound, int64_t totalDbs, int64_t maxDbs,
                         int64_t totalUsers, int64_t maxUsers, int64_t totalStreams, int64_t maxStreams,
                         int64_t totalConns, int64_t maxConns, int8_t accessState) {
+  if (monitor == NULL) return;
   if (monitor->state != MONITOR_STATE_INITIALIZED) return;
 
   char sql[1024] = {0};