From ce4ddd78658a07a9130e90a97f194a116fd508fc Mon Sep 17 00:00:00 2001
From: minqiyang <minqiyang@baidu.com>
Date: Thu, 26 Jul 2018 15:48:05 +0800
Subject: [PATCH] Add debug info

---
 python/paddle/reader/decorator.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/python/paddle/reader/decorator.py b/python/paddle/reader/decorator.py
index 4b1fe94222d..ff64a1a5af2 100644
--- a/python/paddle/reader/decorator.py
+++ b/python/paddle/reader/decorator.py
@@ -325,6 +325,14 @@ def xmap_readers(mapper, reader, process_num, buffer_size, order=False):
             else:
                 yield sample
 
+        assert finish == process_num
+        for w in workers:
+            print('join worker: ', w)
+            print('join worker: ', w.is_alive())
+            w.join()
+            print('join worker: ', w.is_alive())
+        del workers
+
     return xreader
 
 
-- 
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