[infinispan-dev] MapReduce limitations and suggestions.
Evangelos Vazaios
vagvaz at gmail.com
Thu Feb 20 03:37:04 EST 2014
On 02/19/2014 03:22 PM, Dan Berindei wrote:
> I forgot to ask about this... we already have the entries stored as
> key,value pairs, so we expect the data to be already in the cache. That
> means there is no ordering in the inputs, and the mapper can't rely on
> sequential inputs to be related. Would you consider that to be a reasonable
> expectation?
>
Yes, I have not encounter an algorithm in M/R that assumes such
relations during the map phase.
Cheers,
Evangelos
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