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https://issues.apache.org/jira/browse/YARN-3969?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Subru Krishnan updated YARN-3969:
---------------------------------
    Attachment: YARN-3969-v1.patch

Attaching a simple patch that skips the overriding of max system apps for 
dynamic ReservationQueues based on their absolute capacity to allow accepting & 
queuing jobs against the reservation till resources are allocated.

> Allow jobs to be submitted to reservation that is active but does not have 
> any allocations
> ------------------------------------------------------------------------------------------
>
>                 Key: YARN-3969
>                 URL: https://issues.apache.org/jira/browse/YARN-3969
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacityscheduler, fairscheduler, resourcemanager
>            Reporter: Subru Krishnan
>            Assignee: Subru Krishnan
>         Attachments: YARN-3969-v1.patch
>
>
> YARN-1051 introduces the notion of reserving resources prior to job 
> submission. A reservation is active from its arrival time to deadline but in 
> the interim there can be instances of time when it does not have any 
> resources allocated. We reject jobs that are submitted when the reservation 
> allocation is zero. Instead we should accept & queue the jobs till the 
> resources become available.



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