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https://issues.apache.org/jira/browse/HADOOP-8040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13608259#comment-13608259
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Daryn Sharp commented on HADOOP-8040:
-------------------------------------
I need to find test to look at this more, but I would expect if the base
{{FileSystem}} implementation is sufficiently generic, {{ViewFileSystem}} would
"just work" because it would resolve the paths relative to the viewfs path. It
should only be a problem if delegating the resolution into nested filesystems,
ala {{ViewFileSystem}} mount points, and through a {{FilterFileSystem}}.
> Add symlink support to FileSystem
> ---------------------------------
>
> Key: HADOOP-8040
> URL: https://issues.apache.org/jira/browse/HADOOP-8040
> Project: Hadoop Common
> Issue Type: New Feature
> Components: fs
> Affects Versions: 0.23.0, 3.0.0, 2.0.3-alpha
> Reporter: Eli Collins
> Assignee: Andrew Wang
> Attachments: hadoop-8040-1.patch, hadoop-8040-2.patch,
> hadoop-8040-3.patch
>
>
> HADOOP-6421 added symbolic links to FileContext. Resolving symlinks is done
> on the client-side, and therefore requires client support. An HDFS symlink
> (created by FileContext) when accessed by FileSystem will result in an
> unhandled UnresolvedLinkException. Because not all users will migrate from
> FileSystem to FileContext in lock step, and we want users of FileSystem to be
> able to access all paths created by FileContext, we need to support symlink
> resolution in FileSystem as well, to facilitate migration to FileContext.
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