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From Paul Wilkinson <paul.m.wilkin...@gmail.com>
Subject Re: Keeping track of the mappers that feed a reducer
Date Wed, 13 Mar 2013 10:15:21 GMT
Why not just materialise the mapper information into the values that are
emitted?

No need to rewrite Hadoop - just change the application code.

On 13 March 2013 08:31, preethi ganeshan <preethiganeshan92@gmail.com>wrote:

> Hi,
> I have to modify the Task.java class and the MapTask.java class to keep
> track of the mappers that feed a reducer .How do i go about doing this ?
>
> Regards,
> Preethi
>

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