1)载并解压hadoop-0.20.203.0.修给解压文件夹名字hadoop-0.20.2032)按述所示hadoop-0.20.203/bin路径加PATH环境变量sudo gedit/etc/profile3)修改配置文件配置文件都hadoop-0.20.203/conf目录a.进/hadoop-0.20.203/conf/hadoop-env.sh解注释JAVA
