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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8456) Support spaces in user names and group names in results returned via winutils
Date Mon, 29 Oct 2012 18:24:12 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13486234#comment-13486234

Allen Wittenauer commented on HADOOP-8456:

bq. Generally, we want to natively integrate Hadoop with Windows, in a sense that Windows
user/group information flows thru Hadoop.

bq. Let me know if this makes sense.

It does, but I'm just trying to get a measure for what the user expectation/experience is
going to be for those that are going to use this interface.  (Which, I suspect, is what Daryn's
questions are about as well).  'ls' is a UNIXy thing, which why I asked specifically about
cygwin and SUA.  If Windows users are expecting different output, it may be worthwhile to
implement a dir subcommand.

In other words, we should implement 'expected behavior' not necessarily what is convenient
if there is a collision. (But convenience can always be provided via an option...)  So if
cygwin/sua show with spaces by default, that's what we should do.  If they provide an option
that puts separators in place, that's what we should.  Consistency is key for (inter)operability.
> Support spaces in user names and group names in results returned via winutils
> -----------------------------------------------------------------------------
>                 Key: HADOOP-8456
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8456
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: native
>    Affects Versions: 1-win
>            Reporter: Chuan Liu
>            Assignee: Ivan Mitic
>            Priority: Minor
>         Attachments: HADOOP-8456.branch-1-win.spaces.patch
> When parsing results returned by ‘ls’, we made implicit assumption that user and
group names cannot contain spaces. On Linux, spaces are not allowed in user names and group
names. This is not the case for Windows. We need to find a way to fix the problem for Windows.

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