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Posted to common-dev@hadoop.apache.org by "Vinod K V (JIRA)" <ji...@apache.org> on 2009/04/24 13:26:30 UTC
[jira] Commented: (HADOOP-5641) Possible NPE in CapacityScheduler's
MemoryMatcher
[ 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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