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https://issues.apache.org/jira/browse/YARN-1228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sandy Ryza updated YARN-1228:
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Summary: Clean up Fair Scheduler configuration loading (was: Don't allow
other file than fair-scheduler.xml to be Fair Scheduler allocations file)
> Clean up Fair Scheduler configuration loading
> ---------------------------------------------
>
> Key: YARN-1228
> URL: https://issues.apache.org/jira/browse/YARN-1228
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: scheduler
> Affects Versions: 2.1.1-beta
> Reporter: Sandy Ryza
>
> Currently the Fair Scheduler is configured in two ways
> * An allocations file that has a different format than the standard Hadoop
> configuration file, which makes it easier to specify hierarchical objects
> like queues and their properties.
> * With properties like yarn.scheduler.fair.max.assign that are specified in
> the standard Hadoop configuration format.
> The standard and default way of configuring it is to use fair-scheduler.xml
> as the allocations file and to put the yarn.scheduler properties in
> yarn-site.xml.
> It is also possible to specify a different file as the allocations file, and
> to place the yarn.scheduler properties in fair-scheduler.xml, which will be
> interpreted as in the standard Hadoop configuration format. This flexibility
> is both confusing and unnecessary. There's no need to keep around the second
> way.
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