R stands for Replica, or real Replica M stands for Master, or real Master R turned M, means Replica host reconfigured to act as Master M turned R, means Master host reconfigured to act as Replica So, consider the following scenario. We have two hosts M (host A) and R (host B). M received 4 messages and synced up with R. R has 4 messages too. Now, R goes down, after a while M receives 2 new messages and goes down too. We fix R first and bring it back up as M. This R turned M receives 3 new messages. We then fix M and bring it up as R. Difference is that real M (host A) holds 2 new messages that real R (host B) doesn't, while real Replica holds 3 new messages that real M doesn't. When tried out, M turned R (host A), when attempted to sync up, logged the following: Jul 13 12:13:41 imapsite-replica2 syncserver[7265]: executed Jul 13 12:13:41 imapsite-replica2 syncserver[7265]: accepted connection Jul 13 12:13:41 imapsite-replica2 syncserver[7265]: cmdloop(): startup Jul 13 12:13:41 imapsite-replica2 syncserver[7265]: login: imapsite-master [10.10.0.205] cyrus PLAIN User logged in Jul 13 12:13:41 imapsite-replica2 syncserver[7265]: Unlinking files in mailbox user.zxy Jul 13 12:13:41 imapsite-replica2 syncserver[7265]: IOERROR: failed to parse /var/spool/imap/sync./7265/3b0d8ec2924b317b22b3864e587 8662d9e187fb4 Jul 13 12:13:41 imapsite-replica2 syncserver[7265]: IOERROR: failed to append file user.zxy 15 However, the following workaround did the trick just fine: [Replica aka MtR] % mv /var/lib/imap ~/lib-imap [Replica aka MtR] % mv /var/spool/imap ~/spool-imap [Replica aka MtR] % rsync -a --numeric-ids master:/var/spool/imap /var/spool/ [Replica aka MtR] % rsync -a --numeric-ids master:/var/lib/imap /var/lib/ After that sync worked just fine. The question is, though, how does one interpret the error message logged and what can be done to bring the two hosts in sync with each another in the scenario such as described? ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/
