diff --git a/core/utils/dataset_holder.py b/core/utils/dataset_holder.py
index 66e1edb2c1d3db9359b95229a474cae2301d7d2f..9b8a3d9f391dd51b39a19f99497893a485f3fb4c 100755
--- a/core/utils/dataset_holder.py
+++ b/core/utils/dataset_holder.py
@@ -157,8 +157,9 @@ class TimeSplitDatasetHolder(DatasetHolder):
                 if postfix.isdigit():
                     if int(postfix) % node_num == node_idx:
                         data_file_list.append(sub_file)
-                elif hash(sub_file_name) % node_num == node_idx:
-                    data_file_list.append(sub_file)
+                else:
+                    if hash(sub_file_name) % node_num == node_idx:
+                        data_file_list.append(sub_file)
             time_window_mins = time_window_mins - self._split_interval
             data_time = data_time + datetime.timedelta(
                 minutes=self._split_interval)
diff --git a/core/utils/envs.py b/core/utils/envs.py
index fe54297995e442063503e2911a895251a95b7365..dffc069ac7cfff7dd6f39c0266f84caf36f8b6c1 100755
--- a/core/utils/envs.py
+++ b/core/utils/envs.py
@@ -18,6 +18,7 @@ import copy
 import os
 import socket
 import sys
+import traceback
 
 global_envs = {}
 
@@ -172,7 +173,9 @@ def lazy_instance_by_package(package, class_name):
                                globals(), locals(), package.split("."))
         instance = getattr(model_package, class_name)
         return instance
-    except Exception,err:
+    except Exception, err:
+        traceback.print_exc()
+        print('Catch Exception:%s' % str(err))
         return None
     
 
@@ -187,7 +190,9 @@ def lazy_instance_by_fliename(abs, class_name):
                                globals(), locals(), package.split("."))
         instance = getattr(model_package, class_name)
         return instance
-    except Exception,err:
+    except Exception, err:
+        traceback.print_exc()
+        print('Catch Exception:%s' % str(err))
         return None