Fiware-Cosmos MapReduce

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I have a Question regarding the MapReduce example explained here:

http://ift.tt/1BDlmqQ

It is indeed the most common example of hadoop MapReduce, the WordCount.

I am able to execute it with no problems at the global instance of Cosmos, but even when I give it an small input (a file with 2 or 3 lines) it takes a lot to execute it (half a minute more or less). I assume this is its normal behavior but my question is: ¿Why does it takes so long even for an small input?

I guess this method increases its efectiveness with bigger datasets where this minimal delay is negligible.

asked 3 mins ago

Lope Lh

1

Fiware-Cosmos MapReduce