[jira] [Commented] (HADOOP-8457) Address file ownership issue for users in Administrators group on Windows.

["Sanjay Radia (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-8457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13413429#comment-13413429 ] 

Sanjay Radia commented on HADOOP-8457:
--------------------------------------

Patch adds public method FileStatus#isOwnedByUser(UserGroupInformation ugi)
* Does not make sense to expose a low level structure like ugi through a fundamental class like FileStatus. Make the parameter String user.
* I hate the idea of adding a public method when "getOwener().equals(user)" is good enough -  but FileStatus is subclassed and is useful for the RawFileSystem's FileStatus. Is there another way to solve the problem in a simple way without adding such a method?
**  e.g. put in a util? May not work since the new code applies to FileStatus of RawLocalFileSystem of windows-filesystem  and not to FileStatus of hdfs where the client is running on a windows box.
                
> Address file ownership issue for users in Administrators group on Windows.
> --------------------------------------------------------------------------
>
>                 Key: HADOOP-8457
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8457
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: native
>    Affects Versions: 1.1.0, 0.24.0
>            Reporter: Chuan Liu
>            Assignee: Ivan Mitic
>            Priority: Minor
>         Attachments: HADOOP-8457-branch-1-win_Admins(2).patch, HADOOP-8457-branch-1-win_Admins.patch
>
>
> On Linux, the initial file owners are the creators. (I think this is true in general. If there are exceptions, please let me know.) On Windows, the file created by a user in the Administrators group has the initial owner ‘Administrators’, i.e. the the Administrators group is the initial owner of the file. As a result, this leads to an exception when we check file ownership in SecureIOUtils .checkStat() method. As a result, this method is disabled right now. We need to address this problem and enable the method on Windows.

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