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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2025) Possible NPE in schedulers#addApplicationAttempt()
Date Tue, 25 Nov 2014 04:14:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-2025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14224028#comment-14224028
] 

Jian He commented on YARN-2025:
-------------------------------

bq. This looks very strange that how can RMApp->FAILED but RMAppAttempt->null..?
YARN-2834 should fix this. [~rohithsharma], Are you running a build with the patch or without
?

> Possible NPE in schedulers#addApplicationAttempt()
> --------------------------------------------------
>
>                 Key: YARN-2025
>                 URL: https://issues.apache.org/jira/browse/YARN-2025
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Tsuyoshi OZAWA
>            Assignee: Tsuyoshi OZAWA
>         Attachments: YARN-2025.1.patch
>
>
> In FifoScheduler/FairScheduler/CapacityScheduler#addApplicationAttempt(), we don't check
whether {{application}} is null. This can cause NPE in following sequences: addApplication()
-> doneApplication() (e.g. AppKilledTransition) -> addApplicationAttempt().
> {code}
>     SchedulerApplication application =
>         applications.get(applicationAttemptId.getApplicationId());
>     String user = application.getUser();
> {code}



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