eclipse安装hadoop插件

解压hadoop1.2.1.tar.gz
在文件夹hadoop1.2.1/src/contrib/eclipse-plugin下
里面存放的是插件的源码，就是一个java项目，打包导入

不想打的话自己找jar包
hadoop-eclipse-plugin-1.2.1.jar

需要在hdfs-site.xml中增加配置

    <property>        <name>dfs.permissions</name>        <value>false</value>        <description>            If "true", enable permission checking in HDFS.            If "false", permission checking is turned off,            but all other behavior is unchanged.            Switching from one parameter value to the other does not change the mode,            owner or group of files or directories.        </description>    </property>

否则会accessdenied