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https://issues.apache.org/jira/browse/YARN-5731?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sunil G updated YARN-5731:
--------------------------
    Summary: Preemption does not work in few corner cases when reservations are 
placed  (was: Preemption does not work in few corner cases where reservations 
are placed)

> Preemption does not work in few corner cases when reservations are placed
> -------------------------------------------------------------------------
>
>                 Key: YARN-5731
>                 URL: https://issues.apache.org/jira/browse/YARN-5731
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacity scheduler
>    Affects Versions: 2.7.3
>            Reporter: Sunil G
>            Assignee: Sunil G
>
> Preemption doesnt kick in under below scenario.
> Two queues A and B each with 50% capacity and 100% maximum capacity and user 
> limit factor 2. Job which is submitted to queueA has taken 95% of resources 
> in cluster. Remaining 5% was also reserved by same job as demand was still 
> higher.
> Now submit a small job with AM container size is lesser to above mentioned 
> 5%. Job waits and no preemption is happening.



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