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https://issues.apache.org/jira/browse/HDFS-4205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13526796#comment-13526796
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Eli Collins commented on HDFS-4205:
-----------------------------------
@Nikolai,
Like stat vs lstat, FileContext#getFileLinkStatus returns the FileSatus of the
link, getFileStatus resolves all the symlinks in the path and returns the
FileStatus of the resolved path.
> fsck fails with symlinks
> ------------------------
>
> Key: HDFS-4205
> URL: https://issues.apache.org/jira/browse/HDFS-4205
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs-client
> Affects Versions: 3.0.0, 2.0.2-alpha
> Reporter: Andy Isaacson
>
> I created a symlink using
> {code}
> ...
> FileContext fc = FileContext.getFileContext(dst.fs.getUri());
> for (PathData src : srcs) {
> fc.createSymlink(src.path, dst.path, false);
> }
> {code}
> After doing this to create a symlink {{/foo/too.txt -> /foo/hello.txt}}, I
> tried to {{hdfs fsck}} and got the following:
> {code}
> [adi@host01 ~]$ hdfs fsck /
> Connecting to namenode via http://host01:21070
> FSCK started by adi (auth:SIMPLE) from /172.29.122.91 for path / at Fri Nov
> 16 15:59:18 PST 2012
> FSCK ended at Fri Nov 16 15:59:18 PST 2012 in 3 milliseconds
> hdfs://host01:21020/foo/hello.txt
> Fsck on path '/' FAILED
> {code}
> It's very surprising that an unprivileged user can run code which so easily
> causes a fundamental administration tool to fail.
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