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https://issues.apache.org/jira/browse/YARN-7017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16127774#comment-16127774
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Eric Payne edited comment on YARN-7017 at 8/15/17 7:56 PM:
-----------------------------------------------------------
Thanks [~saruntek] for raising this issue.
{quote}
As of today the only way to enable preemption at a queue level is:
- Enable cluster level preemption
- Disable preemption on the queues where not required using
yarn.scheduler.capacity.<queue-path>.disable_preemption to true
{quote}
Actually, you don't need to {{disable_preemption}} for every queue. The
{{disable_preemption}} property is inherited, so you can:
- Enable cluster level preemption
- Disable preemption on the root queue using
{{yarn.scheduler.capacity.root.disable_preemption = true}}
- Enable preemption on the queues where required using
{{yarn.scheduler.capacity.<queue-path>.disable_preemption = false}}
was (Author: eepayne):
Thanks [~saruntek] for raising this issue.
{quote}
As of today the only way to enable preemption at a queue level is:
- Enable cluster level preemption
- Disable preemption on the queues where not required using
yarn.scheduler.capacity.<queue-path>.disable_preemption to true
{quote}
Actually, you don't need to {{disable_preemption}} for every queue. The
{{disable_preemption}} property is inherited, so you can:
- Enable cluster level preemption
- Disable preemption on the root queue using
{{yarn.scheduler.capacity.root.disable_preemption = true}}
- Enable preemption on the queues where required using
{{yarn.scheduler.capacity.<queue-path>.disable_preemption = true}}
> Enable preemption for a single queue.
> -------------------------------------
>
> Key: YARN-7017
> URL: https://issues.apache.org/jira/browse/YARN-7017
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: capacity scheduler, yarn
> Reporter: sarun
>
> *PROBLEM*
> How to enable preemption on a single queue in a cluster?
> *DESCRIPTION*
> As of today the only way to enable preemption at a queue level is:
> * Enable cluster level preemption
> * Disable preemption on the queues where not required using
> yarn.scheduler.capacity.<queue-path>.disable_preemption to true
> Can we have some sort of a parameter like
> *_yarn.scheduler.capacity.<queue-path>.enable_preemption_*
> which would just enable preemption per queue instead of going the other way
> round which is more time consuming and error prone.
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