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From Lucian Iordache <lucian.george.iorda...@gmail.com>
Subject Relation between Mapper and Combiner
Date Fri, 01 Jul 2011 08:55:21 GMT
Hello guys,

Can anybody tell me which is the relation between map task and combine
I would like to know if there is a 1:1 relation between them, or is a *:1
(many to one).

For example:
If I have *2 map tasks* ran on the same machine, will I have *1 combine task
* on that machine to combine the maps outputs, *or 2 combine tasks*?

Best Regards,

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