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From Vikas Jadhav <vikascjadha...@gmail.com>
Subject Fwd: new join algorithm using mapreduce
Date Sun, 20 Jan 2013 18:05:17 GMT
---------- Forwarded message ----------
From: Vikas Jadhav <vikascjadhav87@gmail.com>
Date: Sat, Jan 19, 2013 at 10:58 PM
Subject: new join algorithm using mapreduce
To: user@hadoop.apache.org


I am writing new join algorithm using hadoop
and want to do multi way join in single mapreduce job


map --> processes all dataset
reduce-->  join of all dataset
                + aggregate operation

second mapreduce job

will collect result from multple reducer files of first job

I am pretty clear about map phase but dnt have idea how to process
all dataset in single reduce.

So how i should proceed and
do i need to modify code of mapreduce


Thanks



-- 
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Thanx and Regards*
* Vikas Jadhav*



-- 
*
*
*

Thanx and Regards*
* Vikas Jadhav*

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