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) 

Thanks
Sunil

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!