hadoop相关备录
1.map/reduce框架介绍，及实例：http://www.360doc.com/content/10/0803/13/2159920_43357680.shtml
2.hadoop 0.21.0集群配置
http://wenku.baidu.com/view/92cbe435eefdc8d376ee32eb.html
3.WordCount 程序分析及eclipse 运行http://kb.cnblogs.com/page/72865/
http://kb.cnblogs.com/page/72949/
4.map分析
http://ai-longyu.iteye.com/blog/1566633
