On Wed, Mar 10, 2010 at 11:26:41AM -0000, darren.mans...@opengi.co.uk wrote: > > On Wed, Mar 10, 2010 at 02:32:05PM +0800, Martin Aspeli wrote: > > Florian Haas wrote: > >> On 03/09/2010 06:07 AM, Martin Aspeli wrote: > >>> Hi folks, > >>> > >>> Let's say have a two-node cluster with DRBD and OCFS2, with a > database > >>> server that's supposed to be active on one node at a time, using the > >>> OCFS2 partition for its data store. > >> *cringe* Which database is this? > > > > Postgres. > > > > Why are you cringing? From my reading, I had gathered this was a > pretty > > common setup to support failover of Postgres without the luxury of a > > SAN. Are you saying it's a bad idea? > > PgSQL on top of DRBD is OK. PgSQL on top of OCFS2 is a disaster waiting > to > gnaw your leg off. > > > -------------- > > Please forgive my ignorance, I seem to have missed the specifics about > using OCFS2 on DRBD dual-primary but what are the main issues? How can > you use PgSQL on dual-primary without OCFS2?
You don't. Switch to single primary and let your cluster manager take care of DRBD demote/promote and filesystem mounting. - Matt _______________________________________________ Pacemaker mailing list Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker
