Tao Yang created YARN-9007:
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Summary: CS preemption monitor should only select GUARANTEED
containers as candidates
Key: YARN-9007
URL: https://issues.apache.org/jira/browse/YARN-9007
Project: Hadoop YARN
Issue Type: Bug
Components: capacityscheduler
Affects Versions: 3.2.1
Reporter: Tao Yang
Assignee: Tao Yang
Currently CS preemption monitor doesn't consider execution type of containers,
so OPPORTUNISTIC containers maybe selected and killed without effect.
In some scenario with OPPORTUNISTIC containers, not even preemption can't work
properly to balance resources, but also some apps with OPPORTUNISTIC containers
maybe effected and unable to work.
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