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From Allen Wittenauer <awittena...@linkedin.com>
Subject Re: Number of Mappers Running Simultaneously
Date Fri, 17 Sep 2010 15:33:28 GMT

On Sep 16, 2010, at 10:54 PM, Amogh Vasekar wrote:
> If for your job, and you want to control it on a per node basis, one way is to allocate
more memory to each of your mapper so it occupies more than one slot. If a slot is free, a
task will be scheduled on it and that's more or less out of your control, especially so in
pig.

I'm fairly certain this is only true if you are running Y!'s build or Apache 0.21+ with capacity
scheduler.


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