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From "liuzhg" <liu...@cernet.com>
Subject How to mapreduce in the scenario
Date Tue, 29 May 2012 10:29:03 GMT
Hi,
 
I wonder that if Hadoop can solve effectively the question as following:
 
==========================================
input file: a.txt, b.txt
result: c.txt
 
a.txt:
id1,name1,age1,...
id2,name2,age2,...
id3,name3,age3,...
id4,name4,age4,...
 
b.txt: 
id1,address1,...
id2,address2,...
id3,address3,...

c.txt
id1,name1,age1,address1,...
id2,name2,age2,address2,...
========================================
 
I know that it can be done well by database. 
But I want to handle it with hadoop if possible.
Can hadoop meet the requirement?
 
Any suggestion can help me. Thank you very much!
 
Best Regards,
 
Gump



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