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Posted to dev@tajo.apache.org by "Keuntae Park (JIRA)" <ji...@apache.org> on 2013/10/13 05:33:41 UTC
[jira] [Commented] (TAJO-244) Occur NullPointerException when
assignToNonLeafTasks
[ https://issues.apache.org/jira/browse/TAJO-244?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13793563#comment-13793563 ]
Keuntae Park commented on TAJO-244:
-----------------------------------
+1
Looks great for me.
This bug seems to be caused by thread unsafe object 'containers' in AbstractResourceAllocator.
After the patch, I tested 200 times and had no problem.
> Occur NullPointerException when assignToNonLeafTasks
> ----------------------------------------------------
>
> Key: TAJO-244
> URL: https://issues.apache.org/jira/browse/TAJO-244
> Project: Tajo
> Issue Type: Bug
> Reporter: hyoungjunkim
> Assignee: Hyunsik Choi
> Fix For: 0.2-incubating
>
> Attachments: TAJO-244.patch
>
>
> This error occurs randomly.
> {code}
> Exception in thread "Thread-63" java.lang.NullPointerException
> at org.apache.tajo.master.TaskSchedulerImpl$ScheduledRequests.assignToNonLeafTasks(TaskSchedulerImpl.java:531)
> at org.apache.tajo.master.TaskSchedulerImpl.schedule(TaskSchedulerImpl.java:197)
> at org.apache.tajo.master.TaskSchedulerImpl$2.run(TaskSchedulerImpl.java:120)
> {code}
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