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From Eric Payne <eric.payne1...@yahoo.com.INVALID>
Subject Re: About yarn.scheduler.capacity.<queue-path>.disable_preemption
Date Tue, 19 Apr 2016 22:00:37 GMT
Thanks Sunil.
Todd, also, please note that in order to enable the preemption feature, the feature's property
must be set to true:yarn.resourcemanager.scheduler.monitor.enable: true

Then, if you want to turn preemption off for any particular queue, you would then set yarn.scheduler.capacity.<queue-path>.disable_preemption
to false. At that point, apps on this particular queue will not be preempted. And, as Sunil
said, this value is inherited by child queues.-Eric

      From: Sunil Govind <sunil.govind@gmail.com>
 To: Todd <bit1129@163.com>; "user@hadoop.apache.org" <user@hadoop.apache.org>

 Sent: Tuesday, April 19, 2016 2:06 AM
 Subject: Re: About yarn.scheduler.capacity.<queue-path>.disable_preemption
   
Hi Todd
If this configuration is enabled for a queue, proportional preemption policy will skip this
queue from collecting resources for preemption.And this configuration is enabled for a parent
queues, it's also applicable to its child queues as well.(will be inherited) 
ThanksSunil
On Tue, Apr 19, 2016, 10:36 AM Todd <bit1129@163.com> wrote:

Hi,
There is a configuration property yarn.scheduler.capacity.<queue-path>.disable_preemption
that can be configured on a queue.
My question is when I set this property on root.A,does it mean that queue A's resources can't
be preempted by other queues, or queue A can't   
preempt resources from other queues?

Thanks!


 


  
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