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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-4792) FairScheduler should do sanity checks on its configuration
Date Fri, 11 Mar 2016 21:54:39 GMT

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

Karthik Kambatla updated YARN-4792:
    Component/s:     (was: yarn)

> 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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