On Fri, 2013-02-01 at 16:15 +0000, John wrote: > Further to my last message, I've updated my master so now both servers > report the same version: > version : v2.4.17 d1df8aff 2012-12-01 > I'd like to understand some error messages that I am getting and what I > should do to resolve them... > On the replica: > syncserver[8816]: higher last_uid on replica user.myuser - 57628 < 57629 > syncserver[8816]: higher modseq on replica user.myuser - 36186 < 36187 A modseq is very much like an etag or a ctag in HTTP/WebDAV. It is a value that gets incremented with every change. So the the modseq on the slave is greater than the modseq on the master... something is out of sync. > On the master: > sync_client[5197]: MAILBOX received NO response: IMAP_MAILBOX_CRC > Checksum Failure > sync_client[5197]: CRC failure on sync for user.myuser, trying full update > sync_client[5197]: SYNCNOTICE: record mismatch with replica: user.myuser > more recent on master Aren't you connecting to the slave and making changes? That would make sense then, the master and the replica are constantly getting out-of-sync. Replication is one-way. > Despite these messages, my replication appears to be working but I can't > as yet be 100% sure. I'd like to understand the above and try and stop > them if I can... Because it is constantly recovering, as these messages indicate. 2.4.x replication is quite reliable and recovers from inconsistencies most of the time. > I can't find any documentation detailing what the above means, and I'm > not that familiar with the internals of the imap server, so I'd really > appreciate some pointers... -- Adam Tauno Williams GPG D95ED383 Systems Administrator, Python Developer, LPI / NCLA ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
