Manikandan R created YUNIKORN-3240:
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Summary: Ensure leaf queues doesn't violate parent queue's
guaranteed settings
Key: YUNIKORN-3240
URL: https://issues.apache.org/jira/browse/YUNIKORN-3240
Project: Apache YuniKorn
Issue Type: Sub-task
Components: core - scheduler
Reporter: Manikandan R
Assignee: Manikandan R
There is a possibility of causing violation (bringing down usage below
guaranteed resource) when triggering preemption for parent queue to enforce the
new max quota.
For example,
Lowering quota on parent which has children at multiple levels with no
guaranteed set on any child might end up in preempting victims slightly going
above the exact required preempted resources in one or more end leaf queues.
Parent might start with {{{}x{}}}preempted resources, but some of all resources
released by victims might exceed like {{x+2 or x+3...}} slightly.
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