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


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Distributed Cache - for iterators?
Hey everyone,

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.

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?

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

Thanks,
David
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Keith Turner 2013-03-28, 16:03
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Eric Newton 2013-03-28, 21:36