On Thu, 2010-08-12 at 01:31 -0400, Tom Lane wrote: > So the DBA is > just flying blind as to whether the slave is trustworthy yet. I can't > prove that that's what burnt the original complainant, but it fits the > symptoms.
The safest approach is to 1. run pg_start_backup() on master, remember LSN 2. copy backup_label from master to standby 3. wait for starting LSN to be applied on standby 4. run backup on standby 5. run pg_stop_backup() on master That ensures we don't run without full page writes during backup and that we have an explicit consistency point to work from. -- Simon Riggs www.2ndQuadrant.com PostgreSQL Development, 24x7 Support, Training and Services -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs