Reconstruct on a live Cyrus system

Bron Gondwana brong at
Sat Jan 29 17:35:57 EST 2011

On Sat, Jan 29, 2011 at 09:03:50AM -0500, Adam Tauno Williams wrote:
> On Sat, 2011-01-29 at 18:00 +0530, Shuvam Misra wrote: 
> > Guys,
> > One basic question, which is not explicitly covered in the reconstruct
> > manpage. Can I run a reconstruct on a user's mailbox when imapd is
> > running and there's a risk that the user may connect to his mailbox?
> > I need to know this for Cyrus v2.2 as well as later versions. Help,
> > please?
> Yes, it works fine.  But it does lock the mailbox during reconstruct.
> If the mailbox is open reconstruct will 'hang' until the mailbox becomes
> available.  If reconstruct is running the client will 'hang' until
> reconstruction completes.
> I'm not certain what happens to delivery to the mailbox - I've always
> *assumed* it is a transient error and delivery gets reattempted by the
> MTA.

In 2.4 (and I assume earlier but I haven't checked the codepaths...) the
lmtp session will freeze until it can get a lock.

It would probably be possible to make it a transient error - but I think
the best would be a 5 second timeout or something so that most short locks
don't cause a delay.


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