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Accumulo, mail # user - Distributed Cache - for iterators?


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Re: Distributed Cache - for iterators?
Keith Turner 2013-03-28, 16:03
On Thu, Mar 28, 2013 at 11:45 AM, Slater, David M.
<[EMAIL PROTECTED]> wrote:
> Hey everyone,
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> In Hadoop Map Reduce, the Configuration class can pass String parameters
> (via the Context argument to map and reduce). Likewise, the Map<String,
> String> options argument in Iterator init allows the same functionality for
> Accumulo iterators.
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> However, for more complex parameters, Hadoop has a DistributedCache which is
> available to all of the mappers and reducers. Is there any similar
> functionality for Accumulo iterators, or does all of the information need to
> be sent as a String through options?

Accumulo does not provide anything out of the box.  I wonder if
putting a file in HDFS w/ a high replication factor would be a good
way to pass this info.

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> Also, are there any problems with sending exceptionally long Strings in the
> options argument?

Does anyone know if David would run into issues similar to ACCUMULO-1141?

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> Thanks,
> David