On Thu, Sep 27, 2007 at 02:50:15PM +0300, Стоян Цалев wrote:> Hi guys,> I'm currently playing around with cyrus 2.3.9 and replication. It seems quite > stable and in fact, perfectly usable. However, I ran into a problem with > the delayed expunge feature. It looks like this - when I delete a mail (via > IMAP) on the master, the same happens on the replica, as it should. Then I > use the unexpunge utility to list deleted mails (both on the master and > replica) and they are being displayed correctly - i.e. same number of deleted > msgs, same msg UIDs, etc. Then I use unexpunge to "undelete" a mail, and it > works great - the msg appears as new on the master. However, it remains > deleted on the replica...> I guess it's a problem when bringing the replica up as a master after a > failure, because the previously unexpunged mail on the master would appear as > deleted. So my question is: Is this behaviour expected/planned? I mean, is it > a feature or a bug ;) Yes. (never ask a computer person an "or" question!) Seriously, it's a bug. It's a bug because the sync protocol doesn'tunderstand about delayed expunge at all. You could turn off delayed expunge on the replica, which would causethe messages to re-sync, but if you failed over in the usual case thenthe deleted messages wouldn't be there. This is on my checklist to do something about, so expect a fix to comesome time in the new few months, either from FastMail or from David/Kenwho are also working on replication stuff. It's probably going to causea protocol change, which means we should try to sync up any otherprotocol changes as well. Actually, I think 2.3.10 will have a syncprotocol change anyway due to the new GUID stuff, so maybe I should pushmyself a bit harder and try to get it in before the release! Thing is, I haven't worked out the best approach yet. Well, I probablyhave, but it's the wildly unpopular "flag in the index file and getrid of the expunged file all together" technique. Might even be ableto manage it without a protocol change in that case... hmmm. Bron ( thinking/typing out loud and too tired to write any real code now )----Cyrus Home Page: http://cyrusimap.web.cmu.edu/Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twikiList Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
