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From Marc Parisi <m...@accumulo.net>
Subject Re: Chain Jobs and Accumulo.
Date Mon, 16 Jul 2012 21:11:33 GMT
Jim is right.

Since the functions specified by ChainMapper are all done in the same
context, I htink you could write your Mapper and reducer to perform the
same functionality. Additionally, you could chain jobs, though that will
require a spill.

On Mon, Jul 16, 2012 at 5:05 PM, Jim Klucar <klucar@gmail.com> wrote:

> Juan,
> I believe the mapreduce API is the newer one.
>
>
> Sent from my iPhone
>
> On Jul 16, 2012, at 5:04 PM, Juan Moreno <jwellington.moreno@gmail.com>
> wrote:
>
> Hi there, I have a use case where I need to use a Chain Mapper and/or
> Reducer. The problem is that
> the AccumuloInputFormat extends hadoop.mapreduce.InputFormat rather than
> implementing hadoop.mapred.InputFormat
>
> Trying to make use of *org.apache.hadoop.mapred.lib.ChainMapper*
> does not work because it requires the use of the mapred package. Is there
> a version of the AccumuloInputFormat which uses
> the hadoop.mapred package instead? Can InputFormatBase be rewritten with
> the newer API?
>
> Thanks!
> Juan
>
>

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