db upgrades in 2.4.x?
zmully at smartbrief.com
Tue Oct 18 20:08:37 EDT 2011
We're prepping for updating from 2.2.13->2.4.12 and I'm attempting to
figure out some of the database differences between the two to make sure
things go smoothly.
We've already uncovered several issues in our testing that I've not
been able solve searching through the list archives:
1) Seen state updates
2) the purpose of /var/lib/cyrus/db
First, if I understand correctly, seen flags are now incorporated into
the cyrus.index file in 2.4.x. What I can't figure out is if there is
any way to manually trigger the reindexing of a single mailbox
cyrus.index file. A reconstruct doesn't appear to do it (just using the
When we do the cutover over, we've a tight deadline, and what I'd like
to do is reindex only the hot mailboxes, and then queue the remaining
ones for later. I don't think my users will tolerate loosing all their
Seen states, so I want to make sure we're preserving it while reducing
the re-indexing impact so that the server is still responsive.
Is it possible to trigger a reindex manually of a single mailbox? How
are others dealing with this?
Second, I don't understand the purpose of the /var/lib/cyrus/db in
2.4.12, it complained when the directory wasn't there, and I'm sure what
it's storing now that it is. Everything on our 2.4.12 install is either
skiplist or flat (sub), so what is that /db for?
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