From: Paul Boven (no email)
Date: Tue Jul 11 2006 - 07:57:27 EDT
Hi everyone,
I'm planning an upgrade from a Cyrus-2.2.8 to Cyrus-2.2.12. However, we
will also be upgrading Berkeley from 4.1.25 to 4.4.20 because of some
performance issues with the first.
So now I'm wondering: should I call db_upgrade from Berkeley on each of
these databases? And which databases exactly would that be? This is a
stock standard 2.2.8, with no specific backends mentioned in the
imapd.conf or compiled in. What are the filenames/locations where I
should find Berkeley db files?
Some candidates:
/var/imap/mailboxes.db - but Berkeley-db fails to recognise that file,
so I can't dump it.
/var/imap/annotations.db - same problem.
/var/imap/tls_sessions.db is a Berkeley db-file, but one I could afford
to wipe during the upgrade.
/var/imap/deliver.db is a Berkeley db-file, but also one I could affort
to wipe.
What exactly lives in the directory /var/imap/db ?
Which is Berkeley, and which isn't? Mine contains:
-rw------- 1 cyrus mail 24576 Jul 11 13:19 __db.001
-rw------- 1 cyrus mail 4374528 Jul 11 13:19 __db.002
-rw------- 1 cyrus mail 663552 Jul 11 13:19 __db.003
-rw------- 1 cyrus mail 98304 Jul 11 13:19 __db.004
-rw------- 1 cyrus mail 17563648 Jul 11 13:19 __db.005
-rw------- 1 cyrus mail 32768 Jul 11 13:19 __db.006
-rw------- 1 cyrus mail 642407 Jul 11 08:31 log.0000000001
-rw------- 1 cyrus mail 4 Jul 11 13:19 skipstamp
There's also /var/imap/user/*/*.seen which are some kind of database,
and /var/spool/imap/user/.../cyrus.{header,index.cache}.
On a test-machine, I've tried the following:
Stop cyrus, do a Berkeley db_upgrade on the databases I identified as
being Berkleley, then restart it. But this has failed completely,
starting up Cyrus results in:
ctl_cyrusdb[4975]: [ID 866726 local6.warning] DBERROR :db4
ctl_cyrusdb[4975]: [ID 864961 local6.crit] DBERROR: critical database
situation
master[4971]: [ID 310780 local6.debug] process 4975 exited, status 75
Obviously, some part of Berkeley is unhappy - but I can't pinpoint what
or where. Any hints are very much welcome.
Regards, Paul Boven.
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