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https://issues.apache.org/jira/browse/HDFS-1788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13050465#comment-13050465
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Daryn Sharp commented on HDFS-1788:
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Oh, I'm not disagreeing with adding {{fc}} or {{lstat}}. I'm just saying leave
{{fs}} intact until we can remove it, ie. have both {{fc}} and {{fs}}. HDFS
appears to lazy-load {{FileStatus}}, but not all {{FileSystem}}s do. Hence why
it makes sense for a {{lstat()}} since very few commands (cp/mv/ls), in limited
cases, will need a stat of the link. Whereas every command uses {{stat}}.
Perhaps I'm misunderstanding: why should commands like cat/tail be symlink
aware? In the normal access case, symlinks should be transparent to a client.
Ie. The filesystem should be responsible for resolving symlinks. Very few
commands should know or care about a symlink.
Note that HADOOP-7360 is changing a lot of the {{PathData}} ctors to be
private. The fs cannot be passed in, and that change was in part intended to
greatly simplify the move to {{FileContext}}. I hope to have this jira
approved in the next few days, so I'd recommend waiting to post another patch
until 7360 is integrated.
On a related note to waiting for my patches, please be mindful of working on
jiras that are already assigned. In the future, please contact an assignee for
the status of their work. In this case, the assignee of this jira was already
working on the change and waiting for a few of my patches to go in.
> FsShell ls: Show symlinks properties
> ------------------------------------
>
> Key: HDFS-1788
> URL: https://issues.apache.org/jira/browse/HDFS-1788
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: tools
> Reporter: Jonathan Eagles
> Assignee: John George
> Priority: Minor
> Attachments: HDFS-1788.patch
>
>
> ls FsShell command implementation has been consistent with the linux
> implementations of ls \-l. With the addition of symlinks, I would expect the
> ability to show file type 'd' for directory, '\-' for file, and 'l' for
> symlink. In addition, following the linkname entry for symlinks, I would
> expect the ability to show "\-> <link target>". In linux, the default is to
> the the properties of the link and not of the link target. In linux, '-L'
> option allows for the dereferencing of symlinks to show link target
> properties, but it is not the default.
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