diff --git a/tests/common/utils.py b/tests/common/utils.py
index 722298e10b7..e2f45b441c9 100644
--- a/tests/common/utils.py
+++ b/tests/common/utils.py
@@ -404,12 +404,14 @@ def load_csv_data(
     config_path = os.path.join(data_dir, 'config.yaml')
 
     with open(config_path, 'r') as f:
+        print(f'load config from {config_path}')
         config = yaml.full_load(f)
 
         space = config.get('space', None)
         assert space is not None
         if not space_name:
             space_name = space.get('name', "A" + space_generator())
+        print(f'create space {space_name}')
 
         space_desc = SpaceDesc(
             name=space_name,
@@ -421,17 +423,20 @@ def load_csv_data(
         )
 
         create_space(space_desc, sess)
+        print(f'create space {space_name} successfully')
 
         schemas = config['schema']
         for line in schemas.splitlines():
             resp_ok(sess, line.strip(), True)
+        print(f'create schema successfully')
 
         # wait heartbeat_interval_secs + 1 seconds for schema synchronization
         time.sleep(2)
 
+        print(f'load data from {data_dir}')
         for fd in config["files"]:
             _load_data_from_file(sess, data_dir, fd)
-
+        print(f'load data successfully')
         return space_desc
 
 
@@ -441,6 +446,9 @@ def get_conn_pool(host: str, port: int):
     config.timeout = 180000
     # init connection pool
     pool = ConnectionPool()
+    print("get pool")
     if not pool.init([(host, port)], config):
         raise Exception("Fail to init connection pool.")
+
+    print("pool init")
     return pool
diff --git a/tests/nebula-test-run.py b/tests/nebula-test-run.py
index 2a89ed249d2..8753b4bc0b2 100755
--- a/tests/nebula-test-run.py
+++ b/tests/nebula-test-run.py
@@ -102,6 +102,7 @@ def start_nebula(nb, configs):
     # Load csv data
     pool = get_conn_pool(address, ports[0])
     sess = pool.get_session(configs.user, configs.password)
+    print('get session')
 
     if not os.path.exists(TMP_DIR):
         os.mkdir(TMP_DIR)
@@ -113,9 +114,13 @@ def start_nebula(nb, configs):
             if not os.path.exists(os.path.join(folder, space, "config.yaml")):
                 continue
             data_dir = os.path.join(folder, space)
+            print('load csv data')
             space_desc = load_csv_data(sess, data_dir, space)
+            print('load csv data done')
             spaces.append(space_desc.__dict__)
+        print(space)
         f.write(json.dumps(spaces))
+    print('SPACE_TMP_PATH')
 
     with open(NB_TMP_PATH, "w") as f:
         data = {