Colin Patrick McCabe created HDFS-5021:
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             Summary: FileSystem#delete and FileSystem#rename should operate on 
symlinks, not their targets
                 Key: HDFS-5021
                 URL: https://issues.apache.org/jira/browse/HDFS-5021
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Colin Patrick McCabe
             Fix For: 2.1.0-beta


Currently {{FileSystem#delete}} and {{FileSystem#rename}} don't behave as 
expected on symlinks.  If you have {{/a/b/c}} as a link to {{/a/b/d}}, and you 
try to delete {{/a/b/c}}, the target {{/a/b/d}} will be deleted instead.  Not 
only is this contrary to POSIX (and pretty much every other filesystem 
standard) but this gives us no way to actually delete symlinks other than 
deleting the containing directory.

Let's fix this so deleting a symlink deletes the symlink itself.  It will just 
require not dereferencing the last path component.  I haven't looked as closely 
into rename but I think there are similar issues there

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