fix: memory leak while create stream

source/dnode/mnode/impl/src/mndScheduler.c

@@ -508,6 +508,7 @@ int32_t mndScheduleStream(SMnode* pMnode, SStreamObj* pStream) {
         qDestroyQueryPlan(pPlan);
         return -1;
       }
+      sdbRelease(pSdb, pVgroup);
     }
   }
   qDestroyQueryPlan(pPlan);

source/dnode/mnode/impl/src/mndStream.c

@@ -295,6 +295,7 @@ static int32_t mndBuildStreamObjFromCreateReq(SMnode *pMnode, SStreamObj *pObj,
     return -1;
   }
   pObj->sourceDbUid = pSourceDb->uid;
+  mndReleaseDb(pMnode, pSourceDb);
 
   memcpy(pObj->targetSTbName, pCreate->targetStbFullName, TSDB_TABLE_FNAME_LEN);
 
@@ -307,6 +308,7 @@ static int32_t mndBuildStreamObjFromCreateReq(SMnode *pMnode, SStreamObj *pObj,
 
   pObj->targetStbUid = mndGenerateUid(pObj->targetSTbName, TSDB_TABLE_FNAME_LEN);
   pObj->targetDbUid = pTargetDb->uid;
+  mndReleaseDb(pMnode, pTargetDb);
 
   pObj->sql = pCreate->sql;
   pObj->ast = pCreate->ast;
@@ -523,6 +525,7 @@ static int32_t mndCreateStbForStream(SMnode *pMnode, STrans *pTrans, const SStre
 
   tFreeSMCreateStbReq(&createReq);
   mndFreeStb(&stbObj);
+  mndReleaseDb(pMnode, pDb);
 
   return 0;
 _OVER: