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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-506) Incorrect UserName at Solaris because it has no "whoami" command by default
Date Fri, 18 Sep 2009 20:05:15 GMT

    [ https://issues.apache.org/jira/browse/HDFS-506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12757387#action_12757387
] 

Allen Wittenauer commented on HDFS-506:
---------------------------------------

Why are you so against committing this patch when there is already OS specific code in the
rest of the system?  Look, fork()ing for identity is already a giant turd.  This just makes
the turd work on another OS without the user having to do anything. So, no, I don't believe
asking for a symlink is reasonable when we could make it Just Work(tm) out of the box with
little-to-no effort on our part.  By the time we finish this conversation, either one of these
patches could have been committed and tested.

> Incorrect UserName at Solaris because it has no "whoami" command by default
> ---------------------------------------------------------------------------
>
>                 Key: HDFS-506
>                 URL: https://issues.apache.org/jira/browse/HDFS-506
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: documentation
>    Affects Versions: 0.20.1
>         Environment: OS: SunOS 5.10
>            Reporter: Urko Benito
>         Attachments: PermissionChecker.java.diff, Shell.java.diff, test-hadoop-security.tar.gz,
UnixUserGroupInformation.java.diff
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> Solaris enviroment has no __whoami__ command, so the __getUnixUserName()__ at UnixUserGroupInformation
class fails because it's calling to Shell.USER_NAME_COMMAND which is defines as "whoami".
> So it launched an Exception and set the default "DrWho" username ignoring all the FileSystem
permissions.

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