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Posted to issues@yunikorn.apache.org by "Manikandan R (Jira)" <ji...@apache.org> on 2025/10/16 08:45:00 UTC

[jira] [Created] (YUNIKORN-3133) [Umbrella] Quota change enforcement via preemption

Manikandan R created YUNIKORN-3133:
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             Summary: [Umbrella] Quota change enforcement via preemption
                 Key: YUNIKORN-3133
                 URL: https://issues.apache.org/jira/browse/YUNIKORN-3133
             Project: Apache YuniKorn
          Issue Type: New Feature
          Components: core - scheduler
            Reporter: Manikandan R
            Assignee: Manikandan R
             Fix For: 1.8.0


When a quota is lowered we currently just stop scheduling workloads in that queue or set of queues. We then rely on the natural pod exits to lower the usage below the new quota set and then continue scheduling.

This work with short lived applications. It does not work if the workload is long lived.

Need to look at implementing preemption to lower the usage to the queue quota within some guidelines
 * preempt most recent container?

 * grace period allowed?

 * daemon set exclusion



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