From 9fbeb3e8842a9f3520f72f47f5fec2a8a4811108 Mon Sep 17 00:00:00 2001
From: gongweibao <weibao.gong@gmail.com>
Date: Thu, 11 May 2017 14:20:33 +0800
Subject: [PATCH] modify by comments

---
 doc/design/cluster_train/data_dispatch.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/doc/design/cluster_train/data_dispatch.md b/doc/design/cluster_train/data_dispatch.md
index 64f24bc05e..beee05787f 100644
--- a/doc/design/cluster_train/data_dispatch.md
+++ b/doc/design/cluster_train/data_dispatch.md
@@ -118,6 +118,23 @@ paddle pfs cp filenames /pfs/$DATACENTER/home/$USER/folder/
 ```bash  
 paddle pfs cp random_images-*-of-* /pfs/$DATACENTER/home/$USER/folder/
 ```
+
+需要`$DATACENTER`的配置写到配置文件中，例如
+
+```
+# config file
+[datacenter_1]
+username=wuyi
+usercert=wuyi.pem
+userkey=wuyi-key.pem
+endpoint=datacenter1.paddlepaddle.org
+
+[datacenter_2]
+username=wuyi
+usercert=wuyi.pem
+userkey=wuyi-key.pem
+endpoint=datacenter2.paddlepaddle.org
+```
 ## TODO
 
 ### 支持用户自定义的数据预处理job
-- 
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