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Posted to yarn-issues@hadoop.apache.org by "yangzhangyang (JIRA)" <ji...@apache.org> on 2017/12/22 11:33:03 UTC
[jira] [Commented] (YARN-1051) YARN Admission Control/Planner:
enhancing the resource allocation model with time.
[ https://issues.apache.org/jira/browse/YARN-1051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16301283#comment-16301283 ]
yangzhangyang commented on YARN-1051:
-------------------------------------
[~curino] I want to ask you a question about "Step 7 The Scheduler will then provide containers from a special queue created to ensure resources reservation is respected. Within the limits of the reservation, the user has guaranteed access to the resources, above that resource sharing proceed with standard Capacity/Fairness sharing." When need reservation-job comes with reservationId, what will happen if there is no real avail res on node manager, just wait other am return res or direct preempt other running job's resource? thanks
> 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
> Fix For: 2.6.0
>
> Attachments: YARN-1051-design.pdf, YARN-1051.1.patch, YARN-1051.patch, curino_MSR-TR-2013-108.pdf, socc14-paper15.pdf, techreport.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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