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https://issues.apache.org/jira/browse/YUNIKORN-3215?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wilfred Spiegelenburg resolved YUNIKORN-3215.
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Fix Version/s: 1.9.0
Resolution: Fixed
> Improve performance of Limit checking
> -------------------------------------
>
> Key: YUNIKORN-3215
> URL: https://issues.apache.org/jira/browse/YUNIKORN-3215
> Project: Apache YuniKorn
> Issue Type: Improvement
> Components: core - common
> Reporter: Wilfred Spiegelenburg
> Assignee: Wilfred Spiegelenburg
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.9.0
>
>
> When adding large numbers of Limits (users and or group quotas) to configured
> queues the validation code performance drops dramatically.
> The issue causing processing to slow down seems to be linked to the amount of
> garbage that gets generated. In small deployments with a regular updates it
> pushes the up the overall memory usage and could cause CPU starvation for the
> scheduler.
> A large number of queues, 1500+ queues were tested, has limited to no real
> impact on the performance of the validations. Large numbers of limits set on
> non leaf seem to have the biggest impact.
>
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