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Posted to yarn-issues@hadoop.apache.org by "Adam Antal (JIRA)" <ji...@apache.org> on 2019/03/06 14:28:00 UTC
[jira] [Updated] (YARN-9326) Fair Scheduler configuration defaults
are not documented in case of min and maxResources
[ https://issues.apache.org/jira/browse/YARN-9326?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Adam Antal updated YARN-9326:
-----------------------------
Attachment: YARN-9326.005.patch
> Fair Scheduler configuration defaults are not documented in case of min and maxResources
> ----------------------------------------------------------------------------------------
>
> Key: YARN-9326
> URL: https://issues.apache.org/jira/browse/YARN-9326
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: docs, documentation, fairscheduler, yarn
> Affects Versions: 3.2.0
> Reporter: Adam Antal
> Assignee: Adam Antal
> Priority: Major
> Attachments: YARN-9326.001.patch, YARN-9326.002.patch, YARN-9326.003.patch, YARN-9326.004.patch, YARN-9326.005.patch
>
>
> The FairScheduler's configuration has the following defaults (from the code: javadoc):
> {noformat}
> In new style resources, any resource that is not specified will be set to missing or 0%, as appropriate. Also, in the new style resources, units are not allowed. Units are assumed from the resource manager's settings for the resources when the value isn't a percentage. The missing parameter is only used in the case of new style resources without percentages. With new style resources with percentages, any missing resources will be assumed to be 100% because percentages are only used with maximum resource limits.
> {noformat}
> This is not documented in the hadoop yarn site FairScheduler.html. It is quite intuitive, but still need to be documented though.
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