On Wed, 23 Mar 2022, at 12:53 PM, Andy Dorman wrote: > Hi Ellie. Something else has come up and I hope you or the Cyrus team > has a good solution cause I am at a loss. > > We had a user with many thousands of emails (2GB+) on one of the servers > that was affected by the segfault. While I was working the issue and > testing cyrus reconstruct to fix the mailboxes, one of our support > people helped this very busy user by creating a new mailbox for them on > the same server. > > So now this user has a new mailbox using uuid storage (which Cyrus sees) > and their old mailbox (which Cyrus doesn't see) at > /var/spool/cyrus/mail/domain/B/redacted/S/user/redacted/
To clarify: does the new account have the same name as the original one? Or does the new account have a new name? In other words, could the two accounts sensibly coexist? > So is there any simple way to move a single mailbox from the old to the > new uuid storage space? This is what the missing relocate_by_id tool is for. You could build Cyrus from source to get it, but if you can wait a little, I think it'd be less risky to wait for an updated Debian package that includes it. Since presumably if you're using the Debian packages, then you aren't already in a habit of building Cyrus from source. But a mailbox being in the old storage location is not a problem, as long as Cyrus expects it to be. It sounds like from your previous success that reconstruct can figure out if it's in the wrong place and sort it out, so you'd only need the relocate_by_id tool for switching mailboxes to uuid storage when you're ready to. > I think it will be fine with the user if we remove the new address that > was created yesterday so the conversion process has a clean starting > point to work with. If the original and new accounts can coexist, then it might be enough to reconstruct the original one, like you did the other broken ones, to bring it back to life. Then import any mail from the new into the original, and delete the new. If they have the same name, and can't coexist, then it's more complicated. You _might_ be able to delete the new account (using cyradm or similar), then reconstruct to bring the original one back in its place from the data on disk (... but maybe deleting the new account will find the data from the original one and delete that too, I'm not sure -- tread carefully, take backups). If that works, you'd probably need to also run cyr_expire before the reconstruct to make sure the new account is really deleted, so it doesn't try to reconstruct the ghost of the new account instead. And then, hopefully you got a backup of the new account before you deleted it, so that you can import the new mail back into the original once it's alive again. At this point, you could theoretically use relocate_by_id to move the account to uuid storage if you wanted to (and if you had it) -- you should do so eventually, but it's not urgent. Maybe the reconstruct will have already done that for you anyway, I'm not sure. Though thinking about it, if the two accounts have the same name, maybe reconstruct can just sort it all out itself. I'm not sure if you tried already, and it didn't work, or if you weren't sure and are asking first. You could try reconstructing with the "-n" option so that it doesn't change anything, just reports what it would have done, and see if what it wants to do seems right. I think the "-f" option would be useful here too. If reconstruct is able to sort it out itself, that seems safer and less hassle than juggling a delete/import/etc. Cheers, ellie ------------------------------------------ Cyrus: Info Permalink: https://cyrus.topicbox.com/groups/info/T9d294f89a3d1d260-M03576583a377a67abfae07ce Delivery options: https://cyrus.topicbox.com/groups/info/subscription
