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https://issues.apache.org/jira/browse/YARN-140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13467915#comment-13467915
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Arun C Murthy commented on YARN-140:
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Uh, the right path for the correct capacity-scheduler.xml is
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/resources/capacity-scheduler.xml
> Add capacity-scheduler-default.xml to provide a default set of configurations
> for the capacity scheduler.
> ---------------------------------------------------------------------------------------------------------
>
> Key: YARN-140
> URL: https://issues.apache.org/jira/browse/YARN-140
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Reporter: Ahmed Radwan
> Assignee: Ahmed Radwan
> Attachments: YARN-140.patch
>
>
> When setting up the capacity scheduler users are faced with problems like:
> {code}
> FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error
> starting ResourceManager
> java.lang.IllegalArgumentException: Illegal capacity of -1 for queue root
> {code}
> Which basically arises from missing basic configurations, which in many
> cases, there is no need to explicitly provide, and a default configuration
> will be sufficient. For example, to address the error above, the user need to
> add a capacity of 100 to the root queue.
> So, we need to add a capacity-scheduler-default.xml, this will be helpful to
> provide the basic set of default configurations required to run the capacity
> scheduler. The user can still override existing configurations or provide new
> ones in capacity-scheduler.xml. This is similar to *-default.xml vs
> *-site.xml for yarn, core, mapred, hdfs, etc.
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