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https://issues.apache.org/jira/browse/YUNIKORN-2057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17841679#comment-17841679
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Peter Bacsko commented on YUNIKORN-2057:
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Guys, [~tarunparimi], any progress with this one? There's going to be a release
1.5.1. Although it's a performance thing, it would be good to do something with
it.
> FindQueueByAppID is slow
> ------------------------
>
> Key: YUNIKORN-2057
> URL: https://issues.apache.org/jira/browse/YUNIKORN-2057
> Project: Apache YuniKorn
> Issue Type: Improvement
> Components: core - scheduler
> Reporter: Wilfred Spiegelenburg
> Assignee: Tarun Parimi
> Priority: Critical
>
> The preemptor calls {{p.queue.FindQueueByAppID()}} to figure out which queue
> the application runs in. This is an expensive way to retrieve the queue.
> Especially when the queue structure grows large and there is no fencing
> turned on with could be traversing large numbers of queue and doing even more
> lookups. We also do this for every single victim. That could be a list and we
> could be trying multiple nodes increasing the number of times we make that
> call.
> We should leverage the application tracking at the partition level to do a
> simple call:
> PartitionContext.getApplicationQueue(appID string) *Queue
> This will require some "plumbing" like we did with the node functions but it
> will perform much better.
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