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MapReduce, mail # user - Re: Setup/Cleanup question

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Re: Setup/Cleanup question
Sai Sai 2013-03-23, 03:40
When running an MR job/program assuming there r 'n' (=100) Mapperstriggered then my question is will the setup & cleanup run n number of times which means once for each mapper or for all the mappers they will run only once.

Any help is appreciated.