Re: question about reduce method

2014-02-17 Thread Akira AJISAKA
Moving to u...@hadoop.apache.org. If you have a question about this, please reply to user mailing list instead of mapreduce-dev@. Thanks, Akira (2014/02/17 10:06), Akira AJISAKA wrote: >> I know map method put these text file into map,like follows,right? >> <001, 35.99> >> <001, 35.99> >> <002,

Re: question about reduce method

2014-02-17 Thread Akira AJISAKA
> I know map method put these text file into map,like follows,right? > <001, 35.99> > <001, 35.99> > <002, 12.49> > <004, 13.42> > <003, 499.99> > <001 ,78.95> > <002, 21.99> > <002, 93.45> > <001, 9.99> > <001, John Allen> > <002, Abigail Smith> > <003, April Stevens> > <004, Nasser Hafez> Follow

question about reduce method

2014-02-17 Thread EdwardKing
Hello every, I am a newbie to hadoop2.2.0, I puzzle with reduce method ,I have two text file,sales.txt and account.txt,like follows: sales.txt 001 35.99 2012-03-15 002 12.49 2004-07-02 004 13.42 2005-12-20 003 499.99 2010-12-20 001 78.95 2012-04-02 002 21.99 2006-11-30 002 93.45 2008-09-10 001