From 9f352fc9197f18986c149e009c74727422b749e1 Mon Sep 17 00:00:00 2001
From: ruitianzhong <ruitian-zhong@outlook.com>
Date: Fri, 31 May 2024 13:21:57 +0800
Subject: [PATCH] add init command in README.md

---
 map-reduce/README.md | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/map-reduce/README.md b/map-reduce/README.md
index 5c8671d..61b5e1e 100644
--- a/map-reduce/README.md
+++ b/map-reduce/README.md
@@ -111,8 +111,16 @@ Set the key class for the job output data.
 
 ### Using Hadoop Distributed File System
 
+initialization:
+
+```shell
+bin/hdfs namenode -format
+sbin/start-dfs.sh
+```
+
 ```shell
-hadoop fs -mkdir /home/{your user name on Linux}
+hadoop fs -mkdir /user
+hadoop fs -mkdir /user/{your user name on Linux}
 hadoop fs -mkdir test_data
 hadoop fs -put ./data/grades.txt test_data
 hadoop fs -put ./data/child-parent.txt test_data