diff --git a/core/general-client/src/general_model.cpp b/core/general-client/src/general_model.cpp
index 04bc4169b63bac7aeb28c70cbbcffd202cc2d199..79d380f6c9a7b7b2032e657a3914efb4b50c4aae 100644
--- a/core/general-client/src/general_model.cpp
+++ b/core/general-client/src/general_model.cpp
@@ -367,7 +367,7 @@ int PredictorClient::batch_predict(
   res.Clear();
   if (_predictor->inference(&req, &res) != 0) {
     LOG(ERROR) << "failed call predictor with req: " << req.ShortDebugString();
-    exit(-1);
+    return -1;
   } else {
     client_infer_end = timeline.TimeStampUS();
     postprocess_start = client_infer_end;
diff --git a/python/paddle_serving_client/__init__.py b/python/paddle_serving_client/__init__.py
index 1e59ec6d406255d068119a8c92bd02770731967f..f3d6a9a661e494bbf8f3ea9995c8e9139fd102d5 100644
--- a/python/paddle_serving_client/__init__.py
+++ b/python/paddle_serving_client/__init__.py
@@ -239,6 +239,9 @@ class Client(object):
             float_slot_batch, float_feed_names, int_slot_batch, int_feed_names,
             fetch_names, result_batch, self.pid)
 
+        if res == -1:
+            return None
+
         result_map_batch = []
         result_map = {}
         for i, name in enumerate(fetch_names):