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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2113) Add cross-user preemption within CapacityScheduler's leaf-queue
Date Mon, 15 May 2017 08:25:04 GMT

     [ https://issues.apache.org/jira/browse/YARN-2113?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sunil G updated YARN-2113:
--------------------------
    Attachment: YARN-2113.0017.patch

[~eepayne]
Thank you very much.

Yes, i think i got the pblm. Many places we were using {{Resources.subtractFrom}}. In few
cases, its possible that vcores/memory could become -ve due to this api. Hence {{Resources.subtractFromNonNegative}}
should be used in place of subtractFrom. A similar issue is handled here as well YARN-6538

Attaching latest patch.

> Add cross-user preemption within CapacityScheduler's leaf-queue
> ---------------------------------------------------------------
>
>                 Key: YARN-2113
>                 URL: https://issues.apache.org/jira/browse/YARN-2113
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: scheduler
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Sunil G
>         Attachments: IntraQueue Preemption-Impact Analysis.pdf, TestNoIntraQueuePreemptionIfBelowUserLimitAndDifferentPrioritiesWithExtraUsers.txt,
YARN-2113.0001.patch, YARN-2113.0002.patch, YARN-2113.0003.patch, YARN-2113.0004.patch, YARN-2113.0005.patch,
YARN-2113.0006.patch, YARN-2113.0007.patch, YARN-2113.0008.patch, YARN-2113.0009.patch, YARN-2113.0010.patch,
YARN-2113.0011.patch, YARN-2113.0012.patch, YARN-2113.0013.patch, YARN-2113.0014.patch, YARN-2113.0015.patch,
YARN-2113.0016.patch, YARN-2113.0017.patch, YARN-2113.apply.onto.0012.ericp.patch, YARN-2113
Intra-QueuePreemption Behavior.pdf, YARN-2113.v0.patch
>
>
> Preemption today only works across queues and moves around resources across queues per
demand and usage. We should also have user-level preemption within a queue, to balance capacity
across users in a predictable manner.



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