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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1051) YARN Admission Control/Planner: enhancing the resource allocation model with time.
Date Tue, 11 Feb 2014 23:14:28 GMT

    [ https://issues.apache.org/jira/browse/YARN-1051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13898478#comment-13898478
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Karthik Kambatla commented on YARN-1051:
----------------------------------------

Thanks Carlo and Subru for sharing the TR and design-doc.

Can you please verify my understanding is right (haven't read the TR yet, just the design
doc): The {{Admission Control}} box (Planning agent and Inventory) takes care of figuring
out if a reservation is feasible and managing the corresponding inventory. Plan Follower would
take care of actually submitting the applications to the RM (scheduler) and scheduler-queue
configurations come show time; the updated scheduler-queue configurations would ensure these
apps would actually get the resources they need. 

> YARN Admission Control/Planner: enhancing the resource allocation model with time.
> ----------------------------------------------------------------------------------
>
>                 Key: YARN-1051
>                 URL: https://issues.apache.org/jira/browse/YARN-1051
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: capacityscheduler, resourcemanager, scheduler
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
>         Attachments: YARN-1051-design.pdf, curino_MSR-TR-2013-108.pdf
>
>
> In this umbrella JIRA we propose to extend the YARN RM to handle time explicitly, allowing
users to "reserve" capacity over time. This is an important step towards SLAs, long-running
services, workflows, and helps for gang scheduling.



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