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From abc xyz <fabc_xyz...@yahoo.com>
Subject Re: Chaining Map-Reduce
Date Fri, 02 Jul 2010 07:17:08 GMT


Thanks Grant, but i want to do it without using any external library. Is there 
some way of it to have more than one reducers in a single job? 




________________________________
From: Grant Mackey <gmackey@cs.ucf.edu>
To: general@hadoop.apache.org
Sent: Thu, July 1, 2010 4:15:57 PM
Subject: Re: Chaining Map-Reduce

Look at the cascade project

-->http://www.cascading.org/

  - Grant

Quoting abc xyz <fabc_xyz111@yahoo.com>:

> Hi everyone,
>
> I know that it is possible in Hadoop 0.19 and onwards to have any number of
> mappers, then a reducer, and then any number of mappers chained in a  
> single job.
> Is it possible to have more than one reducers in this chain? If yes, how??
>
> Thanks
>
>
>
>



Grant Mackey
UCF Research Assistant
Engineering III
Rm 238 Cubicle 1

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