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https://issues.apache.org/jira/browse/HDFS-5021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Colin Patrick McCabe updated HDFS-5021:
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Description:
Currently FSShell delete and FSShell 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
was:
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
> FSShell delete and FSShell 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 FSShell delete and FSShell 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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