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https://issues.apache.org/jira/browse/YUNIKORN-1728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17866163#comment-17866163
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Chia-Ping Tsai commented on YUNIKORN-1728:
------------------------------------------
{quote}
Personally, I think percentage-based quotas are a terrible hack (that was
unfortunately required in the early YARN days). At best, we could possibly
support them if and only if the parent queue capacities are static.
{quote}
100% agree that. We has a similar discussion recently. If the max resources (yk
quota) can be percentage-based, it means the autoscaler can increase the quota
when adding/scaling nodes (assume it is based on root max resources) . It
results in more apps can fit into the queues due to larger quota... so the
"quota" will lose its job :smile
> MaxApplication enforcement supports percentage of resources
> -----------------------------------------------------------
>
> Key: YUNIKORN-1728
> URL: https://issues.apache.org/jira/browse/YUNIKORN-1728
> Project: Apache YuniKorn
> Issue Type: New Feature
> Components: core - scheduler
> Reporter: Rainie Li
> Assignee: Rainie Li
> Priority: Major
>
> Currently we need to set queue with guaranteed resources.
> example:
> {code:java}
> queues:
> - name: root
> submitacl: '*'
> queues:
> - name: queue1
> submitacl: '*'
> maxapplications: 12
> resources:
> guaranteed:
> {memory: 6290G, vcore: 816}
> max:
> {memory: 31450G, vcore: 4080}
> {code}
> It will be convenient to support percentage, so that we can configure queue
> without calculating the actual number.
> {code:java}
> queues:
> - name: root
> submitacl: '*'
> queues:
> - name: queue1
> submitacl: '*'
> maxapplications: 12
> resources:
> guaranteed:
> {memory: 20%, vcore: 20%}
> max:
> {memory: 31450G, vcore: 4080}
> {code}
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