diff --git a/tests/parallel_test/cases.task b/tests/parallel_test/cases.task
index 991e2fecd6f0fbc9d97d36f028b2eddf4178919e..6eb3fb29f21340c542e9dd75542dc0f7fc35a28a 100644
--- a/tests/parallel_test/cases.task
+++ b/tests/parallel_test/cases.task
@@ -692,14 +692,14 @@
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmqConsumerGroup.py
 ,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmqShow.py
 ,,,system-test,python3 ./test.py -f 7-tmq/tmqAlterSchema.py
-,,,system-test,python3 ./test.py -f 7-tmq/tmqConsFromTsdb.py
-,,,system-test,python3 ./test.py -f 7-tmq/tmqConsFromTsdb1.py
-,,,system-test,python3 ./test.py -f 7-tmq/tmqConsFromTsdb-mutilVg.py
-,,,system-test,python3 ./test.py -f 7-tmq/tmqConsFromTsdb1-mutilVg.py
-,,,system-test,python3 ./test.py -f 7-tmq/tmqConsFromTsdb-1ctb.py
-,,,system-test,python3 ./test.py -f 7-tmq/tmqConsFromTsdb1-1ctb.py
-,,,system-test,python3 ./test.py -f 7-tmq/tmqConsFromTsdb-1ctb-funcNFilter.py
-,,,system-test,python3 ./test.py -f 7-tmq/tmqConsFromTsdb-mutilVg-mutilCtb-funcNFilter.py
+,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmqConsFromTsdb.py
+,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmqConsFromTsdb1.py
+,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmqConsFromTsdb-mutilVg.py
+,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmqConsFromTsdb1-mutilVg.py
+,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmqConsFromTsdb-1ctb.py
+,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmqConsFromTsdb1-1ctb.py
+,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmqConsFromTsdb-1ctb-funcNFilter.py
+,,y,system-test,./pytest.sh python3 ./test.py -f 7-tmq/tmqConsFromTsdb-mutilVg-mutilCtb-funcNFilter.py
 ,,,system-test,python3 ./test.py -f 7-tmq/tmqConsFromTsdb-mutilVg-mutilCtb.py
 ,,,system-test,python3 ./test.py -f 7-tmq/tmqConsFromTsdb1-1ctb-funcNFilter.py
 ,,,system-test,python3 ./test.py -f 7-tmq/tmqConsFromTsdb1-mutilVg-mutilCtb-funcNFilter.py
diff --git a/tests/pytest/util/common.py b/tests/pytest/util/common.py
index 9ffebcbdad5f0fa07e26f1bb4d249643ab7bbe42..5b73989d6f22b25c056cba802328d8e3d583ef87 100644
--- a/tests/pytest/util/common.py
+++ b/tests/pytest/util/common.py
@@ -737,7 +737,7 @@ class TDCom:
         if (platform.system().lower() == 'windows'):
             os.system("TASKKILL /F /IM %s.exe"%processorName)
         else:
-            os.system('pkill %s'%processorName)
+            os.system("unset LD_PRELOAD; pkill %s " % processorName)
 
 
 def is_json(msg):