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Posted to yarn-issues@hadoop.apache.org by "Manikandan R (JIRA)" <ji...@apache.org> on 2019/08/17 10:20:00 UTC
[jira] [Commented] (YARN-9756) Create metric that sums total
memory/vcores preempted per round
[ https://issues.apache.org/jira/browse/YARN-9756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16909636#comment-16909636 ]
Manikandan R commented on YARN-9756:
------------------------------------
[~eepayne] I spent some time on understanding this. ProportionalCapacityPreemptionPolicy#preemptOrkillSelectedContainerAfterWait triggers an pre-emption event for each container based on max limit allowed per round. I think if we can do sum of memory/vcores of all containers going to be pre-empt for each round and call appropriate metrics methods here. Is this correct?
Also, since metrics is going to be per round, assuming there would be so many rounds, Wouldn't be difficult for users to derive value out of it? Do you have any JMX o/p structure in your mind?
> Create metric that sums total memory/vcores preempted per round
> ---------------------------------------------------------------
>
> Key: YARN-9756
> URL: https://issues.apache.org/jira/browse/YARN-9756
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacity scheduler
> Affects Versions: 3.2.0, 2.9.2, 3.0.3, 2.8.5, 3.1.2
> Reporter: Eric Payne
> Assignee: Eric Payne
> Priority: Major
>
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