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From "Subru Krishnan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-3969) Allow jobs to be submitted to reservation that is active but does not have any allocations
Date Thu, 23 Jul 2015 23:59:04 GMT

     [ 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-v2.patch

Thanks [~curino] for reviewing the patch. I am uploading a new patch that adds a check to
the _maxApps_ in _ReservationQueue_ post invocations of _setEntitlement()_

> 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-3969-v2.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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