[Dovecot] graceful failure when some folders are not available...

[Timo Sirainen]

On Mon, 2007-10-08 at 16:39 -0500, Steven F Siirila wrote:
> And in fact your tests (below) reproduced this.  The problem with this is
> that if even one file or directory within the user's IMAP folder space is
> currently unavailable (due to an NFS server being down), the user cannot
> log in at all to access any of their other folders.  In out scenario, we
> would prefer that the user simply not see the folders (treat the error the
> same as "file not found").  BTW, the errno seen is ETIMEDOUT (we are soft
> mounting the NFS filesystem in question).  Any thoughts on how we can
> accomplish this?  We don't normally expect this NFS filesystem to become
> unavailable, but when it is, we don't want it to prevent all users from
> being able to log in, since this NFS filesystem only holds folders of an
> archival nature.

Does the attached patch help?

It should work pretty nicely if index files are still available. If they
aren't, it shows the mailbox as being empty.

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