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From Arun C Murthy <...@hortonworks.com>
Subject Re: Capacity scheduler uses all slots from the same tasktracker
Date Tue, 23 Aug 2011 23:07:48 GMT
Were they all 'data-local' or 'rack-local' tasks? If so, it's expected.


On Aug 23, 2011, at 3:51 PM, Sulabh Choudhury wrote:

> Hi,
> So I just started using capacity scheduler for M/R jobs. I have 4 task trackers each
with 4 map/reduce slots.
> Configured a queue so that it uses 25% (4 slots) of the available slots. I was expecting
that it would distribute the job and use slots from each of the 4 tasktrackers but it actually
uses all 4 slots from a single TT.
> Is there a configuration I am missing or this is the expected behavior ?

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