Joshua D. Drake wrote:
> Alvaro Herrera wrote:
> > On Sun, Apr 24, 2005 at 08:10:34AM +0200, Hans-J?rgen Sch?nig wrote:
> >
> >
> >>The idea: We are looking for a way to implement a synchronous
> >>single-master / multiple slaves systems.
> >>Meanwhile we are able to serialize / deserialize WAL records and send
> >>them to a group communication system which transports those records to
> >>the slave database.
> >>This is not hard to do.
> >
> >
> > In fact, I believe Command Prompt's Mammoth Replicator does exactly
> > this.
>
> Very close. We don't use the WAL (yet, slated for probably 8.1) but we
> do use a transaction log shipping method. So the implementation is
> almost the same.
Can you run queries on the slave? If so, how do you handle xid collisions?
-- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610)
359-1001+ If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square,
Pennsylvania19073
