diff --git a/main/lib/idds/orm/base/alembic/versions/53d0af715dab_add_site_throttler.py b/main/lib/idds/orm/base/alembic/versions/53d0af715dab_add_site_throttler.py
index 6adc4274..a7ff48a8 100644
--- a/main/lib/idds/orm/base/alembic/versions/53d0af715dab_add_site_throttler.py
+++ b/main/lib/idds/orm/base/alembic/versions/53d0af715dab_add_site_throttler.py
@@ -49,6 +49,14 @@ def upgrade() -> None:
 
         op.add_column('messages', sa.Column('fetching_id', sa.Integer()), schema=schema)
 
+        try:
+            op.drop_constraint('THROTTLER_SITE_UQ', table_name='throttlers', schema=schema)
+        except:
+            pass
+        try:
+            op.drop_constraint('THROTTLER_PK', table_name='throttlers', schema=schema)
+        except:
+            pass
         op.create_table('throttlers',
                         sa.Column('throttler_id', sa.BigInteger(), sa.Sequence('THROTTLER_ID_SEQ', schema=schema)),
                         sa.Column('site', sa.String(50), nullable=False),
@@ -61,6 +69,7 @@ def upgrade() -> None:
                         sa.Column("created_at", sa.DateTime, default=datetime.datetime.utcnow, nullable=False),
                         sa.Column("updated_at", sa.DateTime, default=datetime.datetime.utcnow, onupdate=datetime.datetime.utcnow, nullable=False),
                         sa.Column('others', JSON()),
+                        replace_existing=True,
                         schema=schema)
         op.create_primary_key('THROTTLER_PK', 'throttlers', ['throttler_id'], schema=schema)
         op.create_unique_constraint('THROTTLER_SITE_UQ', 'throttlers', ['site'], schema=schema)
diff --git a/main/lib/idds/orm/base/alembic/versions/b0ec813021d6_add_sub_map_id.py b/main/lib/idds/orm/base/alembic/versions/b0ec813021d6_add_sub_map_id.py
index 470b571e..d28c57cf 100644
--- a/main/lib/idds/orm/base/alembic/versions/b0ec813021d6_add_sub_map_id.py
+++ b/main/lib/idds/orm/base/alembic/versions/b0ec813021d6_add_sub_map_id.py
@@ -32,7 +32,10 @@ def upgrade() -> None:
         schema = context.get_context().version_table_schema if context.get_context().version_table_schema else ''
         op.add_column('contents', sa.Column('sub_map_id', sa.BigInteger()), schema=schema)
         op.add_column('contents', sa.Column('dep_sub_map_id', sa.BigInteger()), schema=schema)
-        op.drop_constraint(constraint_name="CONTENT_ID_UQ", table_name="contents", schema=schema)
+        try:
+            op.drop_constraint(constraint_name="CONTENT_ID_UQ", table_name="contents", schema=schema)
+        except Exception as ex:
+            print(ex)
         op.create_unique_constraint('CONTENT_ID_UQ', 'contents', ['transform_id', 'coll_id', 'map_id', 'sub_map_id', 'dep_sub_map_id', 'content_relation_type', 'name', 'min_id', 'max_id'], schema=schema)
 
 
diff --git a/main/lib/idds/tests/panda_test.py b/main/lib/idds/tests/panda_test.py
index e6ec7f68..708ce07a 100644
--- a/main/lib/idds/tests/panda_test.py
+++ b/main/lib/idds/tests/panda_test.py
@@ -17,8 +17,8 @@
 task_ids = []
 for task_id in task_ids:
     print("retry %s" % task_id)
-    ret = Client.retryTask(task_id, verbose=True)
-    print(ret)
+    # ret = Client.retryTask(task_id, verbose=True)
+    # print(ret)
 
 # sys.exit(0)
 
@@ -27,6 +27,10 @@
 task_ids = [161488, 154806, 154805, 153413]
 task_ids = [i for i in range(191, 220)]
 task_ids = [162763, 162753]
+task_ids = [i for i in range(164147, 164384)]
+task_ids += [162282, 162283, 162588]
+task_ids = [i for i in range(163930, 164147)]
+task_ids = [161142, 160648]
 for task_id in task_ids:
     print("Killing %s" % task_id)
     ret = Client.killTask(task_id, verbose=True)