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From "Arun C Murthy (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3763) Failed refreshQueues due to misconfiguration prevents further refreshing of queues
Date Mon, 05 Mar 2012 02:45:09 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3763?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated MAPREDUCE-3763:
-------------------------------------

    Fix Version/s:     (was: 0.23.1)
                   0.24.0
    
> Failed refreshQueues due to misconfiguration prevents further refreshing of queues
> ----------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3763
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3763
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.1
>            Reporter: Ramya Sunil
>            Assignee: Arun C Murthy
>             Fix For: 0.24.0
>
>
> 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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