diff --git a/source/dnode/vnode/src/meta/metaQuery.c b/source/dnode/vnode/src/meta/metaQuery.c
index d655883a76..0ebdc5b2bb 100644
--- a/source/dnode/vnode/src/meta/metaQuery.c
+++ b/source/dnode/vnode/src/meta/metaQuery.c
@@ -249,6 +249,8 @@ int metaTtlSmaller(SMeta *pMeta, uint64_t ttl, SArray *uidList){
   tdbTbcClose(pCur);
 
   tdbFree(pKey);
+  metaULock(pMeta);
+
   return 0;
 }
 
diff --git a/source/dnode/vnode/src/meta/metaTable.c b/source/dnode/vnode/src/meta/metaTable.c
index 2bbea593fa..ab512f7774 100644
--- a/source/dnode/vnode/src/meta/metaTable.c
+++ b/source/dnode/vnode/src/meta/metaTable.c
@@ -375,6 +375,7 @@ int metaTtlDropTable(SMeta *pMeta, int64_t ttl, SArray *tbUids) {
   metaWLock(pMeta);
   int ret = metaTtlSmaller(pMeta, ttl, tbUids);
   if(ret != 0){
+    metaULock(pMeta);
     return ret;
   }
   for (int i = 0; i < taosArrayGetSize(tbUids); ++i) {
diff --git a/tests/system-test/simpletest.bat b/tests/system-test/simpletest.bat
index 74f2cdfcba..0b1f16d216 100644
--- a/tests/system-test/simpletest.bat
+++ b/tests/system-test/simpletest.bat
@@ -4,7 +4,7 @@
 python3 .\test.py -f 0-others\taosShellNetChk.py
 python3 .\test.py -f 0-others\telemetry.py
 python3 .\test.py -f 0-others\taosdMonitor.py
-@REM python3 .\test.py -f 0-others\udfTest.py
+python3 .\test.py -f 0-others\udfTest.py
 @REM python3 .\test.py -f 0-others\udf_create.py
 @REM python3 .\test.py -f 0-others\udf_restart_taosd.py
 @REM python3 .\test.py -f 0-others\cachelast.py