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Posted to yarn-issues@hadoop.apache.org by "Subru Krishnan (JIRA)" <ji...@apache.org> on 2015/07/24 01:14:05 UTC

[jira] [Updated] (YARN-3969) Allow jobs to be submitted to reservation that is active but does not have any allocations

     [ https://issues.apache.org/jira/browse/YARN-3969?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

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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