delete selected folder leaves empty dir on disk

[Rob Siemborski]

On Fri, 10 Jan 2003, John Alton Tamplin wrote:

> Since rmdir() doesn't delete it, I assume that means there is some entry
> in the directory which wasn't deleted.  Since you have apparently looked
> at this before, what is the cause?  Is unlink failing on some file for
> some reason, or is it a race condition of a file being created after the
> opendir() and before the rmdir() loop?

Well, on linux atleast, rmdir() can fail with EBUSY:

       EBUSY  pathname  is  the current working directory or root directory of
              some process.

On solaris, you do have to be the process selected on the mailbox to hit
the problem.

> This has been particularly annoying here during the conversion, because
> Mail::IMAPClient uses temporary folders and it deletes them while they
> are selected, leaving thousands of empty top-level directories.  I shut
> the server down and cleaned them up, but that isn't something I would
> like to do often.

I actually suspect its easier to fix Mail::IMAPClient than to get a
totally correct cyrus.

The bug for this issue is here:

http://bugzilla.andrew.cmu.edu/show_bug.cgi?id=1268

-Rob

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Rob Siemborski * Andrew Systems Group * Cyert Hall 207 * 412-268-7456
Research Systems Programmer * /usr/contributed Gatekeeper