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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2567) add FileSystem#getHomeDirectory() method
Date Thu, 10 Jan 2008 17:31:34 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12557714#action_12557714

Doug Cutting commented on HADOOP-2567:

> 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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