On Wed, 4 May 2005 20:49:59 -0400 Vlad <marchenko@gmail.com> wrote:
> Hello,
> in need to increase reliability of the service (and perhaps eventually
> offload main DB server) we are looking to setup replication for the
> database server. I found two solutions:
> Slony ( http://gborg.postgresql.org/project/slony1/projdisplay.php )
> PGCluster ( http://pgfoundry.org/projects/pgcluster )
> I found that PgCluster supports multi-muster mode, which we can
> benefit from, but it's not required for "backup" which is #1 goal at
> the moment.
> If anyone used those solutions, compared performance, reliability, etc
> - please share your experience / thoughts.
i think you need to be more specific about your replication requirements.
async multi master is problematic in any case. it can be useful in certain
circumstances, but for generically duplicating a large database, it's generally
the wrong answer.
you should probably focus on single master/multi slave setups, there are
useful solutions in that space.
richard
--
Richard Welty rwelty@averillpark.net
Averill Park Networking
Java, PHP, PostgreSQL, Unix, Linux, IP Network Engineering, Security
"F=ma : it's not just a good idea, it's the law"