diff --git a/test/service/client.py b/test/service/client.py
index 4d239e7..034ff4f 100644
--- a/test/service/client.py
+++ b/test/service/client.py
@@ -1,19 +1,16 @@
-import requests
-URL = "http://192.168.230.132:8011"
 
 code = """
 import time
+import os
 
 print("hello world")
-cnt = 0
-while True:
-    print(cnt)
-    cnt += 1
-    time.sleep(0.1)
-
+print(os.environ)
 """
 
-resp = requests.post(URL, json={"code": code})
-print(resp.json()["msg"])
+if __name__ == "__main__":
+    import requests
+    url = "http://127.0.0.1:8011"
+    resp = requests.post(url, json={"code": code})
+    print(resp.json()["msg"])
 
 
diff --git a/test/service/server.py b/test/service/server.py
index 2de20ca..9518c66 100644
--- a/test/service/server.py
+++ b/test/service/server.py
@@ -4,8 +4,10 @@ import os
 import subprocess
 import time
 
+
 app = Flask(__name__)
-ROCKER_PATH = "/home/yanguangshaonian/rocker/target/debug/rocker"
+USER_NAME = "ubuntu"
+ROCKER_PATH = f"/home/{USER_NAME}/rocker/target/debug/rocker"
 
 @app.route("/", methods=["POST"])
 def hello_world():
@@ -21,7 +23,7 @@ def hello_world():
                         "--id", _id,
                         "--image", "ubuntu_pypy_numpy_pandas_user", 
                         "--run", "python -u /tmp/main.py", 
-                        "--env", "/home/yanguangshaonian/rocker/pypy.env", 
+                        "--env", f"/home/{USER_NAME}/rocker/pypy.env", 
                         "--volume", f"{user_path}:/tmp",
                         "--log"])
     except Exception as e:
@@ -45,4 +47,4 @@ def hello_world():
     return {"msg": out, code: code, "id": _id}
 
 if __name__ == "__main__":
-    app.run(host='0.0.0.0', port=8011)
\ No newline at end of file
+    app.run(host='0.0.0.0', port=8011, threaded=True)
\ No newline at end of file