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From "Bibin A Chundatt (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3894) RM startup should fail for wrong CS xml NodeLabel capacity configuration
Date Wed, 08 Jul 2015 07:06:04 GMT

    [ https://issues.apache.org/jira/browse/YARN-3894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14618109#comment-14618109
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Bibin A Chundatt commented on YARN-3894:
----------------------------------------

[~leftnoteasy] . Should we reinitialize queue again for capacity validation?



> RM startup should fail for wrong CS xml NodeLabel capacity configuration 
> -------------------------------------------------------------------------
>
>                 Key: YARN-3894
>                 URL: https://issues.apache.org/jira/browse/YARN-3894
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacityscheduler
>            Reporter: Bibin A Chundatt
>            Assignee: Bibin A Chundatt
>            Priority: Critical
>
> Currently in capacity Scheduler when capacity configuration is wrong
> RM shutdown is the current behaviour, but not incase of NodeLabels capacity mismatch
> In {{CapacityScheduler#initializeQueues}}
> {code}
>   private void initializeQueues(CapacitySchedulerConfiguration conf)
>     throws IOException {   
>     root = 
>         parseQueue(this, conf, null, CapacitySchedulerConfiguration.ROOT, 
>             queues, queues, noop);
>     labelManager.reinitializeQueueLabels(getQueueToLabels());
>     root = 
>         parseQueue(this, conf, null, CapacitySchedulerConfiguration.ROOT, 
>             queues, queues, noop);
>     LOG.info("Initialized root queue " + root);
>     initializeQueueMappings();
>     setQueueAcls(authorizer, queues);
>   }
> {code}
> {{labelManager}} is initialized from queues and calculation for Label level capacity
mismatch happens in {{parseQueue}} . So during initialization {{parseQueue}} the labels will
be empty . 



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