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From Chen Song <chen.song...@gmail.com>
Subject yarn container memory setting
Date Mon, 21 Jul 2014 20:44:45 GMT
I read a bit on documentation on yarn memory tuning and found that

It is suggested to set mapreduce.map.java.opts = 0.8 *
mapreduce.map.memory.mb.

I am wondering why is 0.8, but not 0.9 or higher?

-- 
Chen Song

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