because my inside is outside

install java

$ sudo yum install java →　javaが古い

sunからjava-1.6.Xダウンロードして export JAVA_HOME=/usr/java/jdk1.6.0_06　で設定した


$ sudo yum install rsync
$ sudo yum install ant
[hadoop@dev3 ~]$ ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa
[hadoop@dev3 ~]$ cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys

http://yoshimov.com/?page=Hadoop%2FWindows%A4%C7%A4%CE%BC%C2%B9%D4

以下のようにexampleを実行
bash bin/hadoop dfs -mkdir input
bash bin/hadoop dfs -put conf/hadoop-default.xml input
bash bin/hadoop jar hadoop-0.16.1-examples.jar wordcount input output
bash bin/hadoop dfs -cat output/*

以下のページから、DFSとMap/Reduceの実行状況が確認できる
http://localhost:50070/
http://localhost:50030/