Hi, we really want to get a reliable PostgreSQL replication setup going, with a Master Write server and many Slave Read-Only servers replicating off the master. This is to allow us to scale up our low-write/high-read application over many customers.
We've done some research (ie, web searching) and we are not convinced that PostgreSQL replication projects are production ready (with one commercial exception). Hopefully we are wrong however, as the MySQL built-in replication does seem very mature and makes me look across with envy. But considering all the effort we've put into our PG installation, we'd rather stick to PG if possible.
I will briefly list the PG Replication projects I have come across
below. I am looking for more experienced people, who have hopefully
already implemented any of these, or the authors themselves, to provide more details and guide us in the right direction as to which project is the "best" to go with. I am happy to summarize
the info we put together for others looking to do the same.
eRServer http://www.erserver.com/ Commercial, looks professional. Not free. However, No trial or evaluation ?
PGReplication http://gborg.postgresql.org/project/pgreplication/projdisplay.php Software is: Postgres-R with Spread. Free. Looks to be still very much in development, can only consider beta ?
RServ http://gborg.postgresql.org/project/rservimp/projdisplay.php Looks far too beta.... Free
PostgreSQL Replicator http://pgreplicator.sourceforge.net/ “Store and forward” asynchronous data replication. Free Tested up to PG 7.1 Peer-to-peer (single master/slave pair) not multi-slave.
Usogres http://usogres.good-day.net/ Very simple and not real-time replication. Free. Just duplication and only one master/slave pair.
Regards, Chris.
-- Chris Miles http://chrismiles.info/
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