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Posted to common-user@hadoop.apache.org by john smith <js...@gmail.com> on 2011/09/28 07:48:12 UTC

"Reduce shuffle bytes" in GUI

Hey folks,

I have my job tracker GUI which shows a lot of information about the
running/completed jobs.

I am interested in the field "Reduce shuffle bytes". I want to know how it
is computed... Is it just the sum of all the bytes received per reducer
during shuffle ?

Any help?

Thanks