On Wed, Jun 13, 2012 at 02:55:41PM -0400, Bruce Momjian wrote: > On Wed, Jun 13, 2012 at 08:43:23PM +0200, hubert depesz lubaczewski wrote: > > On Wed, Jun 13, 2012 at 02:32:21PM -0400, Bruce Momjian wrote: > > > I assume 8.3 vacuumdb did not generate these errors. If it was 8.4 I > > > would suggest it was because we don't copy visibility map files from > > > pre-9.1 because those were not crash-safe, but 8.3 didn't have > > > visibility map files (added in PG 8.4), so 8.3 should have been checking > > > the exact same transaction ids as 9.1. > > > > > > Basically, I can't think of a cause. > > > > yeah, neither can we. but - any other test - even using the same source > > of $PGDATA went flawless. I'm tempted to assume it's just a random > > glitch in matrix, and just go on. > > Is the vacuumdb still repeatedly failing? well - in this particular upgraded database - i think so. I did run it couple of times, it failed all the times. But this $PGDATA is not longer used - we did another tests, and no other test showed problems - i.e. vacuum worked fine. Best regards, depesz -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general