http://www.cnblogs.com/xia520pi/archive/2012/05/16/2504205.html wordcount运行过程详解
http://www.cnblogs.com/gpcuster/archive/2010/06/04/1751538.html hdfs命令介绍
http://hi.baidu.com/gkf8605/item/d6b8af09c3463512eafe38b1 hdfs命令
http://www.cnblogs.com/forfuture1978/archive/2010/11/14/1877086.html mapreduce入门
http://hadoop.apache.org/docs/r0.20.2/api/index.html hadoop0.20.2 api