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https://issues.apache.org/jira/browse/YARN-1152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13760281#comment-13760281
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Jason Lowe commented on YARN-1152:
----------------------------------

I also manually tested this on a secure cluster.  Proxy links and mapred job 
-list both worked after the job had completed, and the master key had been 
removed for the attempt.
                
> Invalid key to HMAC computation error when getting application report for 
> completed app attempt
> -----------------------------------------------------------------------------------------------
>
>                 Key: YARN-1152
>                 URL: https://issues.apache.org/jira/browse/YARN-1152
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 0.23.10, 2.1.1-beta
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>            Priority: Blocker
>         Attachments: YARN-1152.txt
>
>
> On a secure cluster, an invalid key to HMAC error is thrown when trying to 
> get an application report for an application with an attempt that has 
> unregistered.

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