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https://issues.apache.org/jira/browse/HADOOP-2567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12557714#action_12557714
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Doug Cutting commented on HADOOP-2567:
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> Would it be make sense to use UserGroupInformation to determine the home dir?
Yes, someday. Long-term, username's should be filesystem-specific. But we
don't yet have an API to get the username for a particular filesystem. Once
that's added, it should be returned as a UserGroupInformation and used to
determine the home directory, but until then, I think this is not worth adding.
Note that this patch does not change how the home directory in HDFS is
computed, it only adds a method to expose the home directory already implicit
in HDFS. Changing how we compute it should perhaps be the subject of another
issue.
> add FileSystem#getHomeDirectory() method
> ----------------------------------------
>
> Key: HADOOP-2567
> URL: https://issues.apache.org/jira/browse/HADOOP-2567
> Project: Hadoop
> Issue Type: New Feature
> Components: fs
> Reporter: Doug Cutting
> Assignee: Doug Cutting
> Fix For: 0.16.0
>
> Attachments: 2567-3.patch, HADOOP-2567-1.patch, HADOOP-2567-2.patch,
> HADOOP-2567.patch
>
>
> The FileSystem API would benefit from a getHomeDirectory() method.
> The default implementation would return "/user/$USER/".
> RawLocalFileSystem would return System.getProperty("user.home").
> HADOOP-2514 can use this to implement per-user trash.
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