ubunru12.10下安装Hadoop1.0.4

官方文档：http://hadoop.apache.org/docs/r1.0.4/

1.安装ssh和rsync

$ sudo apt-get install ssh 
$ sudo apt-get install rsync

解压hadoop安装包

$ tar -zxvf hadoop-1.0.4.tar.gz

配置JAVA_HOME

$ gedit ~/hadoop-1.0.4/conf/hadoop-env.sh 

在打开的窗口中将

# The java implementation to use.  Required.
# export JAVA_HOME=/usr/lib/j2sdk1.5-sun

改为