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https://issues.apache.org/jira/browse/HDFS-3639?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13412388#comment-13412388
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Eli Collins commented on HDFS-3639:
-----------------------------------

Test failure is unrelated, filed HDFS-3642.
                
> JspHelper#getUGI should always verify the token if security is enabled
> ----------------------------------------------------------------------
>
>                 Key: HDFS-3639
>                 URL: https://issues.apache.org/jira/browse/HDFS-3639
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 1.0.0, 2.0.0-alpha
>            Reporter: Eli Collins
>            Assignee: Eli Collins
>            Priority: Minor
>         Attachments: hdfs-3639.txt
>
>
> JspHelper#getUGI on verifies the given token if the context and nn are set 
> (added in HDFS-2416). We should unconditionally verifyToken the token, ie a 
> bug where "name.node" is not set in the context object should not result in 
> not verifying the token. In practice this shouldn't be an issue as per 
> HDFS-3434 the context and NN should never be null.

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