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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4171) WebHDFS and HttpFs should accept only valid Unix user names
Date Thu, 29 Nov 2012 03:22:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13506181#comment-13506181
] 

Alejandro Abdelnur commented on HDFS-4171:
------------------------------------------

AFAIK that is a Unix limitation in usernames. In case it does not apply to all modern Unixes
we can remove it. If this is an issue for you, please verify and open a JIRA if that is the
case.
                
> WebHDFS and HttpFs should accept only valid Unix user names
> -----------------------------------------------------------
>
>                 Key: HDFS-4171
>                 URL: https://issues.apache.org/jira/browse/HDFS-4171
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.0.2-alpha
>            Reporter: Harsh J
>            Assignee: Alejandro Abdelnur
>             Fix For: 2.0.3-alpha
>
>         Attachments: HDFS-4171.patch, HDFS-4171.patch, HDFS-4171.patch, HDFS-4171.patch
>
>
> HttpFs tries to use UserProfile.USER_PATTERN to match all usernames before a doAs impersonation
function. This regex is too strict for most usernames, as it disallows any special character
at all. We should relax it more or ditch needing to match things there.
> WebHDFS currently has no such limitations.

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