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From "Yufei Gu (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (YARN-4792) FairScheduler should do sanity checks on its configuration
Date Mon, 28 Mar 2016 21:16:25 GMT

     [ https://issues.apache.org/jira/browse/YARN-4792?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yufei Gu resolved YARN-4792.
----------------------------
    Resolution: Won't Fix

> FairScheduler should do sanity checks on its configuration
> ----------------------------------------------------------
>
>                 Key: YARN-4792
>                 URL: https://issues.apache.org/jira/browse/YARN-4792
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: fairscheduler
>    Affects Versions: 2.9.0
>            Reporter: Yufei Gu
>            Assignee: Yufei Gu
>
> The FairScheduler does not perform any sanity checks on the configuration that it uses.
> This can lead to a configuration that is legal but does not make sense in a cluster to
use, and causes support cases to be filed:
> limit the root queue to a certain size for memory or vcores: the cluster resources limit
the root queue already and there should be no need for an extra artificial limit
> setting max running applications on a leaf queue larger than the parent queue(s)
> setting max running applications larger than the queue size (example: minimum vcore allocation
* number of apps > total vcores in the queue)
> There are possibly more checks



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