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https://issues.apache.org/jira/browse/HADOOP-10944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14089206#comment-14089206
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Daryn Sharp commented on HADOOP-10944:
--------------------------------------
The fix is not straightforward since the {{AbstractFileSystem}} methods do not
allow checked exceptions, while UGI methods may throw {{IOException}}. One
possible approach yet less buggy approach is ignoring an exception while
getting the current UGI user and falling back to the property.
> AbstractFileSystem may not return correct home directory
> --------------------------------------------------------
>
> Key: HADOOP-10944
> URL: https://issues.apache.org/jira/browse/HADOOP-10944
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 2.0.0-alpha, 3.0.0
> Reporter: Daryn Sharp
>
> {{AbstractFileSystem#getHomeDirectory}} uses the property "user.name" instead
> of the current UGI user. This is erroneous for proxy users, users with a TGT
> principal not matching the local system user, nor custom ugis via
> {{UGI.createRemoteUser}}.
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