On Sat, 15 Sep 2007 23:10:55 -0700, "Rich Wales" <richw@xxxxxxxxx> said: > I'm running Cyrus 2.3.9 on a small server (less than 10 accounts). I'm > thinking of using replication to put a second copy of the mail store on > a remote server. > > The twist is that I'm planning to configure the remote replica to put > its Cyrus spool in a file system that is encrypted (using "truecrypt"). > Since the spool directory will need to be mounted by hand (with a pass > phrase typed in manually by me), I need to deal with the possibility > that Cyrus might be running but the spool directory is missing (e.g., > if the server has just rebooted and I haven't had a chance to log in > and mount the encrypted file system yet). > > My question is, will Cyrus's replication work properly in an environment > like this? Obviously, nothing can get stored on the replica server if > the spool directory is down, but if the master tries (unsuccessfully) to > synchronize new messages while the replica's spool directory is offline, > will everything eventually end up clean after the file system has been > mounted on the replica? Or is there a danger of activity on the master > being lost? > > As best I can tell, this is NOT the same as a situation in which the > replica server is completely down. In my scenario, the replica server > will be running, and the Cyrus application will be running, but the > spool directory will be missing. > > Is there anything in particular (configuration options, messy kludges, > etc.) that I need to do in a setup like this in order for replication > to work? Yeah, don't start the replica automatically - start cyrus in the script that mounts the filesystem. (you don't _have_ to have start cyrus on boot) Also, see my post the other day and various in the archives about the need to monitor synchronisation and restart sync_client after replica restarts. There's no polite shutdown mode. Bron. -- Bron Gondwana brong@xxxxxxxxxxx ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
