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From "Vinod K V (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5922) NPE in jobqueue_details.jsp page if scheduler has not started
Date Wed, 27 May 2009 11:22:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12713537#action_12713537
] 

Vinod K V commented on HADOOP-5922:
-----------------------------------

As Ramya mentioned offline to me, this happens only in a narrow window when jobqueue_details.jsp
is accessed after JT is started and before scheduler gets started and is not visible afterwards.

This doesn't have any side effects and can be easily fixed by a null check for jobQueuesManager
in CapacityTaskScheduler.getJobs(String queue).

> NPE in jobqueue_details.jsp page if scheduler has not started
> -------------------------------------------------------------
>
>                 Key: HADOOP-5922
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5922
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/capacity-sched
>    Affects Versions: 0.20.0
>            Reporter: Ramya R
>            Priority: Minor
>             Fix For: 0.20.0
>
>
> NullPointerException is observed in jobqueue_details.jsp page if the scheduler has not
yet started

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