FAQ
Hi,

I had some queries regarding MR in Local mode:

1) If I run a MR job (in Local mode) with 10 Mappers, does that mean
the input file (from Local Filesystem) get split into 10 inputSplits
(for each mapper) and each mapper will process its respective split?

2) since (in default) the system can run 2 mappers tasks
simultaneously, will that parallelism be preserved in Local Mode MR
too?

Matthew John

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postedMar 17, '11 at 3:35p
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