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Posted to yarn-issues@hadoop.apache.org by "Carlo Curino (JIRA)" <ji...@apache.org> on 2015/11/17 19:08:10 UTC

[jira] [Assigned] (YARN-4360) Improve GreedyReservationAgent to support "early" allocations, and performance improvements

     [ https://issues.apache.org/jira/browse/YARN-4360?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Carlo Curino reassigned YARN-4360:
----------------------------------

    Assignee: Carlo Curino

> Improve GreedyReservationAgent to support "early" allocations, and performance improvements 
> --------------------------------------------------------------------------------------------
>
>                 Key: YARN-4360
>                 URL: https://issues.apache.org/jira/browse/YARN-4360
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacityscheduler, fairscheduler, resourcemanager
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
>
> The GreedyReservationAgent allocates "as late as possible". Per various conversations, it seems useful to have a mirror behavior that allocates as early as possible. Also in the process we leverage improvements from YARN-4358, and implement an RLE-aware StageAllocatorGreedy(RLE), which significantly speeds up allocation.



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