Hadoop（十五）MapReduce程序实例

 

1.1、数据准备

joe,    jon    
joe , kia    
joe, bob    
joe ,ali
kia,    joe    
kia ,jim    
kia, dee
dee    ,kia    
dee, ali
ali    ,dee    
ali, jim    
ali ,bob    
ali, joe    
ali ,jon
jon,    joe    
jon ,ali
bob,    joe    
bob ,ali    
bob, jim
jim    ,kia    
jim, bob    
jim ,ali