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https://issues.apache.org/jira/browse/YARN-6175?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yufei Gu updated YARN-6175:
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Description:
Both old preemption code (2.8 and before) and new preemption code could have
negative vcores while calculating resources needed to preempt.
For old preemption code would has these message:
{code}
Should preempt <memory:2048, vCores:-2>
{code}
The related code is in method {{resourceDeficit()}}.
For new preemption code, the related code is in method
{{fairShareStarvation()}}.
The negative value isn't only a display issue, but also may cause missing
necessary preemption.
was:
Both old preemption code (2.8 and before) and new preemption code could have
negative vcores while calculating resources needed to preempt.
For old preemption code would has these message:
{code}
Should preempt <memory:2048, vCores:-2>
{code}
The related code is in method {{resourceDeficit()}}.
For new preemption code, the related code is in method
{{fairShareStarvation()}}.
The negative value isn't only a display issue, but also may missing necessary
preemption.
> Negative vcore for resource needed to preempt
> ---------------------------------------------
>
> Key: YARN-6175
> URL: https://issues.apache.org/jira/browse/YARN-6175
> Project: Hadoop YARN
> Issue Type: Bug
> Components: fairscheduler
> Affects Versions: 2.8.0, 3.0.0-alpha2
> Reporter: Yufei Gu
> Assignee: Yufei Gu
>
> Both old preemption code (2.8 and before) and new preemption code could have
> negative vcores while calculating resources needed to preempt.
> For old preemption code would has these message:
> {code}
> Should preempt <memory:2048, vCores:-2>
> {code}
> The related code is in method {{resourceDeficit()}}.
> For new preemption code, the related code is in method
> {{fairShareStarvation()}}.
> The negative value isn't only a display issue, but also may cause missing
> necessary preemption.
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