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Posted to yarn-issues@hadoop.apache.org by "Carlo Curino (JIRA)" <ji...@apache.org> on 2014/09/13 01:56:34 UTC

[jira] [Resolved] (YARN-2475) ReservationSystem: replan upon capacity reduction

     [ https://issues.apache.org/jira/browse/YARN-2475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Carlo Curino resolved YARN-2475.
--------------------------------
          Resolution: Fixed
    Target Version/s: 3.0.0
        Hadoop Flags: Reviewed

I committed this to YARN-1051 branch. Thanks to [~chris.douglas] for the reviews.

> ReservationSystem: replan upon capacity reduction
> -------------------------------------------------
>
>                 Key: YARN-2475
>                 URL: https://issues.apache.org/jira/browse/YARN-2475
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
>         Attachments: YARN-2475.patch, YARN-2475.patch, YARN-2475.patch
>
>
> In the context of YARN-1051, if capacity of the cluster drops significantly upon machine failures we need to trigger a reorganization of the planned reservations. As reservations are "absolute" it is possible that they will not all fit, and some need to be rejected a-posteriori.  



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