学步园

 数据生成:

 hadoop jar hadoop-mapreduce-examples-2.0.3-alpha.jar teragen 10000000   /liuqiang/terasort/1G/

 排序: 

 hadoop jar hadoop-mapreduce-examples-2.0.3-alpha.jar terasort /liuqiang/terasort/1G/  /liuqiang/1G/output/