diff --git a/python/paddle_serving_server/web_service.py b/python/paddle_serving_server/web_service.py
index 0327af03647377e1fc10c4b42fc6aca67e366d8a..18e6664edbfd486bb0156ecc58232795f16d74bb 100644
--- a/python/paddle_serving_server/web_service.py
+++ b/python/paddle_serving_server/web_service.py
@@ -52,6 +52,20 @@ class WebService(object):
     def load_model_config(self, model_config):
         print("This API will be deprecated later. Please do not use it")
         self.model_config = model_config
+        import os
+        from .proto import general_model_config_pb2 as m_config
+        import google.protobuf.text_format
+        if os.path.isdir(model_config):
+            client_config = "{}/serving_server_conf.prototxt".format(
+                model_config)
+        elif os.path.isfile(path):
+            client_config = model_config
+        model_conf = m_config.GeneralModelConfig()
+        f = open(client_config, 'r')
+        model_conf = google.protobuf.text_format.Merge(
+            str(f.read()), model_conf)
+        self.feed_names = [var.alias_name for var in model_conf.feed_var]
+        self.fetch_names = [var.alias_name for var in model_conf.fetch_var]
 
     def _launch_rpc_service(self):
         op_maker = OpMaker()
@@ -179,10 +193,7 @@ class WebService(object):
 
     def run_web_service(self):
         print("This API will be deprecated later. Please do not use it")
-        self.app_instance.run(host="0.0.0.0",
-                              port=self.port,
-                              threaded=False,
-                              processes=1)
+        self.app_instance.run(host="0.0.0.0", port=self.port, threaded=True)
 
     def get_app_instance(self):
         return self.app_instance
diff --git a/python/paddle_serving_server_gpu/web_service.py b/python/paddle_serving_server_gpu/web_service.py
index 560ffa83d067de4bb296a3e6b479c0b00f595a8c..47bf38bf94d6b6444377e3e3967b196bb3edd6a7 100644
--- a/python/paddle_serving_server_gpu/web_service.py
+++ b/python/paddle_serving_server_gpu/web_service.py
@@ -58,6 +58,20 @@ class WebService(object):
     def load_model_config(self, model_config):
         print("This API will be deprecated later. Please do not use it")
         self.model_config = model_config
+        import os
+        from .proto import general_model_config_pb2 as m_config
+        import google.protobuf.text_format
+        if os.path.isdir(model_config):
+            client_config = "{}/serving_server_conf.prototxt".format(
+                model_config)
+        elif os.path.isfile(path):
+            client_config = model_config
+        model_conf = m_config.GeneralModelConfig()
+        f = open(client_config, 'r')
+        model_conf = google.protobuf.text_format.Merge(
+            str(f.read()), model_conf)
+        self.feed_names = [var.alias_name for var in model_conf.feed_var]
+        self.fetch_names = [var.alias_name for var in model_conf.fetch_var]
 
     def set_gpus(self, gpus):
         print("This API will be deprecated later. Please do not use it")
@@ -240,10 +254,7 @@ class WebService(object):
 
     def run_web_service(self):
         print("This API will be deprecated later. Please do not use it")
-        self.app_instance.run(host="0.0.0.0",
-                              port=self.port,
-                              threaded=False,
-                              processes=4)
+        self.app_instance.run(host="0.0.0.0", port=self.port, threaded=True)
 
     def get_app_instance(self):
         return self.app_instance