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MapReduce: Reducers partitions.
Hi,

quick question. How are the data from the map tasks partitionned for
the reducers?

If there is 1 reducer, it's easy, but if there is more, are all they
same keys garanteed to end on the same reducer? Or not necessary?  If
they are not, how can we provide a partionning function?

Thanks,

JM
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Nitin Pawar 2013-04-10, 12:55
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Jean-Marc Spaggiari 2013-04-10, 13:54
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Ted Yu 2013-04-10, 13:58
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Nitin Pawar 2013-04-10, 14:01
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Jean-Marc Spaggiari 2013-04-10, 14:03
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Jean-Marc Spaggiari 2013-04-10, 18:26
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Graeme Wallace 2013-04-10, 18:52
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Jean-Marc Spaggiari 2013-04-10, 19:01
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Stack 2013-04-11, 00:33
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Jean-Marc Spaggiari 2013-04-11, 11:52
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Ted Yu 2013-04-11, 00:03
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Graeme Wallace 2013-04-10, 19:06
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Stack 2013-04-11, 00:26