rbaum at nexplosion.de
Wed Jun 16 05:45:10 EDT 2010
For non-HA situations, you can do a 2-stage rsync-backup once a day:
1 ) copy all cyrus-folders (/var/spool/cyrus, /var/lib/cyrus etc) via rsync to
2 a) shutdown cyrus
2 b) rsync the same folders to complete the snapshot
2 c) restart cyrus
This is a feasible solution with a small downtime (a few seconds), without
using murder or lvm-based volumes or something else.
If you want, I can send my backup-script for this.
Am Mittwoch, 16. Juni 2010, um 11:23:16 schrieb Michael Menge:
> Quoting Elver Loho <elver.loho at gmail.com>:
> > Hi,
> > I'm looking to keep a live or near-live backup of our Cyrus system
> > (currently serving about 10 people with a fairly high volume of email)
> > and the murder system seems like an overkill for such a simple thing.
> > What other options do I have?
> > For MySQL I've set up master-slave replication. All the write queries
> > are replicated to the slave in near-real-time. It's good enough for
> > us. If the main server ever catches fire, we can promote the slave to
> > master and have an almost-up-to-the-second copy of things going on.
> > For PostgreSQL, I've set up a cronjob to dump the DB off the main
> > server every six hours and load it into the backup server. It's as
> > real-time as we need it.
> > Many folders that keep changing on the main server are rsynced over to
> > the backup server once a day.
> > What can I do with Cyrus that would be similar, but where I wouldn't
> > have to deploy scary murder? I don't want to access the Cyrus server
> > on the backup server, but I would like the ability to easily turn it
> > on after the main server fails and lose, at most, half an hour's worth
> > of emails.
> AFAIK Cyrus murder does not help with backup. If you want disaster
> recovery you can use cyrus_replication, but you need some other backup
> tools for the other cases.
> > Best,
> > Elver
> > elver.loho at gmail.com
> > +372 5661 6933
> > http://elver.wordpress.com/
> > skype: elver.loho
> > ----
> > 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
> ----- M.Menge Tel.: (49) 7071/29-70316
> Universität Tübingen Fax.: (49) 7071/29-5912
> Zentrum für Datenverarbeitung mail:
> michael.menge at zdv.uni-tuebingen.de
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> 72074 Tübingen
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