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Posted to yarn-issues@hadoop.apache.org by "Miklos Szegedi (JIRA)" <ji...@apache.org> on 2018/06/22 21:55:00 UTC

[jira] [Updated] (YARN-8452) FairScheduler.update can take long time if yarn.scheduler.fair.sizebasedweight is on

     [ https://issues.apache.org/jira/browse/YARN-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Miklos Szegedi updated YARN-8452:
---------------------------------
    Attachment: YARN-8452.000.patch

> FairScheduler.update can take long time if yarn.scheduler.fair.sizebasedweight is on
> ------------------------------------------------------------------------------------
>
>                 Key: YARN-8452
>                 URL: https://issues.apache.org/jira/browse/YARN-8452
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler
>            Reporter: Miklos Szegedi
>            Priority: Major
>         Attachments: YARN-8452.000.patch
>
>
> Basically we recalculate the weight every time, even if the inputs did not change. This causes high cpu usage, if the cluster has lots of apps.



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