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https://issues.apache.org/jira/browse/YARN-27?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arun C Murthy closed YARN-27.
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> Failed refreshQueues due to misconfiguration prevents further refreshing of
> queues
> ----------------------------------------------------------------------------------
>
> Key: YARN-27
> URL: https://issues.apache.org/jira/browse/YARN-27
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Ramya Sunil
> Assignee: Arun C Murthy
> Fix For: 2.0.2-alpha, 0.23.3
>
> Attachments: YARN-27.patch
>
>
> Stumbled upon this problem while refreshing queues with incorrect
> configuration. The exact scenario was:
> 1. Added a new queue "newQueue" without defining its capacity.
> 2. "bin/mapred queue -refreshQueues" fails correctly with "Illegal capacity
> of -1 for queue root.newQueue"
> 3. However, after defining the capacity of "newQueue" followed by a second
> "bin/mapred queue -refreshQueues" throws
> "org.apache.hadoop.metrics2.MetricsException: Metrics source
> QueueMetrics,q0=root,q1=newQueue already exists!" Also see
> Hadoop:name=QueueMetrics,q0=root,q1=newQueue,service=ResourceManager metrics
> being available even though the queue was not added.
> The expected behavior would be to refresh the queues correctly and allow
> addition of "newQueue".
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