On Mon, Aug 26, 2013 at 7:47 AM, Jim Nasby <j...@nasby.net> wrote: > On 8/23/13 11:23 AM, Greg Stark wrote: >> >> This doesn't generate a unique id. You could back up a standby and restore >> it and point it at the original master and end up with two standbies with >> the same id. > > > If you want to enforce something unique throughout a cluster, I think we're > stuck with having the cluster communicate IDs across an entire cluster. > AFAIK that's how both Slony and londiste 3 do it. The same applies to Postgres-XC for node identifiers. Users can adapt the settings of their cluster to their own needs.
> I think it's also noteworthy that Slony and londiste both rely on the user > specifying node identifiers. They don't try to be magic about it. I think > there's 2 advantages there: > > - Code is simpler > - Users can choose a naming schema that makes sense for them Definitely agreed on that. -- Michael -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
