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From "Benoy Antony (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2527) NPE in ApplicationACLsManager
Date Wed, 10 Sep 2014 15:49:34 GMT

    [ https://issues.apache.org/jira/browse/YARN-2527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14128622#comment-14128622
] 

Benoy Antony commented on YARN-2527:
------------------------------------

Thank you [~zjshen].
I am investigating on how that happened and will probably open another jira with the root
cause. 
But I believe, the NullPointer issue in _ApplicationACLsManager_ should be fixed regardless
of that. Based on the current logic, Admin and application owner should be able to perform
actions on the Application regardless of ACLS. The NullPointer issue prevents it.

> NPE in ApplicationACLsManager
> -----------------------------
>
>                 Key: YARN-2527
>                 URL: https://issues.apache.org/jira/browse/YARN-2527
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.5.0
>            Reporter: Benoy Antony
>            Assignee: Benoy Antony
>         Attachments: YARN-2527.patch
>
>
> NPE in _ApplicationACLsManager_ can result in 500 Internal Server Error.
> The relevant stacktrace snippet from the ResourceManager logs is as below
> {code}
> Caused by: java.lang.NullPointerException
>         at org.apache.hadoop.yarn.server.security.ApplicationACLsManager.checkAccess(ApplicationACLsManager.java:104)
>         at org.apache.hadoop.yarn.server.resourcemanager.webapp.AppBlock.render(AppBlock.java:101)
>         at org.apache.hadoop.yarn.webapp.view.HtmlBlock.render(HtmlBlock.java:66)
>         at org.apache.hadoop.yarn.webapp.view.HtmlBlock.renderPartial(HtmlBlock.java:76)
>         at org.apache.hadoop.yarn.webapp.View.render(View.java:235)
> {code}
> This issue was reported by [~miguenther].



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