diff --git a/source/dnode/mnode/impl/src/mndTopic.c b/source/dnode/mnode/impl/src/mndTopic.c
index 85e6f1caf6..621a80338d 100644
--- a/source/dnode/mnode/impl/src/mndTopic.c
+++ b/source/dnode/mnode/impl/src/mndTopic.c
@@ -799,6 +799,7 @@ static int32_t mndProcessDropTopicReq(SRpcMsg *pReq) {
         mndTransDrop(pTrans);
         return -1;
       }
+      sdbRelease(pSdb, pVgroup);
     }
   }
 
diff --git a/tests/parallel_test/cases.task b/tests/parallel_test/cases.task
index 747eb909a0..fb67ee51cd 100644
--- a/tests/parallel_test/cases.task
+++ b/tests/parallel_test/cases.task
@@ -161,7 +161,7 @@
 ,,n,system-test,python3 ./test.py -f 0-others/tag_index_basic.py
 ,,n,system-test,python3 ./test.py -f 0-others/udfpy_main.py
 ,,n,system-test,python3 ./test.py -N 3 -f 0-others/walRetention.py
-#,,n,system-test,python3 ./test.py -f 0-others/splitVGroup.py -N 5
+,,n,system-test,python3 ./test.py -f 0-others/splitVGroup.py -N 5
 ,,n,system-test,python3 ./test.py -f 0-others/timeRangeWise.py -N 3
 ,,y,system-test,./pytest.sh python3 ./test.py -f 1-insert/alter_database.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 1-insert/alter_replica.py -N 3