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MapReduce, mail # user - No Mapper but Reducer


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Re: No Mapper but Reducer
Sonal Goyal 2011-09-07, 07:52
I dont think that is possible, can you explain in what scenario you want to
have no mappers, only reducers?

Best Regards,
Sonal
Crux: Reporting for HBase <https://github.com/sonalgoyal/crux>
Nube Technologies <http://www.nubetech.co>

<http://in.linkedin.com/in/sonalgoyal>

On Wed, Sep 7, 2011 at 1:18 PM, Bejoy KS <[EMAIL PROTECTED]> wrote:

> Hi
>           I'm having a query here. Is it possible to have no mappers but
> reducers alone? AFAIK If we need to avoid the tyriggering of reducers we can
> set numReduceTasks to zero but such a setting on mapper wont work. So how
> can it be achieved if possible?
>
> Thank You
>
> Regards
> Bejoy.K.S
>