http://dongxicheng.org/mapreduce/hadoop-join-two-tables/
http://dongxicheng.org/mapreduce/run-hadoop-job-problems/
http://dongxicheng.org/mapreduce/hdfs-small-files-solution/
Hadoop中两表JOIN的处理方法,布布扣,bubuko.com
原文地址：http://www.cnblogs.com/pingh/p/3756523.html
