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From "Carlo Curino (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-4360) Improve GreedyReservationAgent to support "early" allocations, and performance improvements
Date Tue, 05 Jan 2016 00:59:39 GMT

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

Carlo Curino updated YARN-4360:
-------------------------------
    Attachment: YARN-4360.5.patch

> 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
>    Affects Versions: 2.8.0
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
>         Attachments: YARN-4360.2.patch, YARN-4360.3.patch, YARN-4360.5.patch, YARN-4360.patch
>
>
> 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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