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From "Vinod K V (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5641) Possible NPE in CapacityScheduler's MemoryMatcher
Date Fri, 24 Apr 2009 11:26:30 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12702330#action_12702330

Vinod K V commented on HADOOP-5641:

The particular method call in question is {code} scheduler.taskTrackerManager.getJob(task.getTaskID().getJobID()).getJobConf();
{code} in MemoryMatcher.getMemReservedForTasks(TaskTrackerStatus taskTracker)

> Possible NPE in CapacityScheduler's MemoryMatcher
> -------------------------------------------------
>                 Key: HADOOP-5641
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5641
>             Project: Hadoop Core
>          Issue Type: Bug
>            Reporter: Vinod K V
>            Assignee: rahul k singh
> MemoryMatches does a job lookup based on a JobID in its getMemReservedForTasks(TaskTrackerStatus
taskTracker) method. By this time, job might have been removed from JT's memory resulting
in a NPE.

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