1、eclipse下载
http://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers/lunasr1
2、hadoop 1.2.1源码中并没有编译好的eclipse插件，需要编译/hadoop/contribeclipse-pluginuild.xml,生成jar包。并且build.xml需要做些修改在编译，修改参考http://shenchen.me/2014/12/06/hadoop-prepare.html，可以直接下载1.2.1的jar包，地址为：http://download.csdn.net/detail/poisonchry/7412615