[jira] [Closed] (YARN-27) Failed refreshQueues due to misconfiguration prevents further refreshing of queues

["Arun C Murthy (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-27?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

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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