1、漫画HDFS工作原理  http://blog.csdn.net/netcoder/article/details/7442779

2、马哥教育 http://mageedu.blog.51cto.com/

3、细细品味Hadoop http://www.cnblogs.com/xia520pi/category/346943.html

4、Hadoop-0.20.0源代码分析 http://blog.csdn.net/shirdrn/article/category/595039/3

5、简单之美 http://shiyanjun.cn/archives/category/opensource/hadoop

6、Hadoop源码分析（主要是MapReduce） http://blog.csdn.net/zhaoyw231/article/category/908609/2

7、Hadoop源代码分析 共41篇 http://liuxinglanyue.iteye.com/blog/853482

8、Hadoop学习资料、博客及网站汇总 http://my.oschina.net/winHerson/blog/168051

9、Hadoop RPC详细分析 http://bbs.hadoopor.com/thread-329-1-1.html  http://weixiaolu.iteye.com/blog/1504898

10、静思斋 http://www.jingsizhai.com/?p=51

11、http://www.cnblogs.com/ggjucheng/archive/2012/04/22/2465625.html

12、精通hadoop http://blog.csdn.net/robertleepeak/article/details/6001369

13、mapreduce编程（分区、分组讲得比较好） http://blog.csdn.net/heyutao007/article/details/5890103