>>To return to normal operation, a standby server must be recreated, either on >>the >>former primary system when it comes up<<
What does it exactly mean to 'recreate a standby server' ? Can I not use the datafiles on the former primary and just let it sync and get the incremental from the new primary ? Do I have to remove all the data files from the former primary and get all the datafiles through rsync (or other similar manner) from the new primary ? ________________________________ From: Ray Stell <ste...@cns.vt.edu> To: A J <s5...@yahoo.com> Cc: pgsql-admin@postgresql.org Sent: Tue, June 7, 2011 2:12:44 PM Subject: Re: [ADMIN] Switchover of Master and Slave roles On Tue, Jun 07, 2011 at 09:32:31AM -0700, A J wrote: > Hello, > I am trying to switch the master and slave roles in a test I am doing with > streaming replication in 9.1 beta. > http://www.postgresql.org/docs/9.1/static/warm-standby-failover.html Once failover to the standby occurs, there is only a single server in operation. This is known as a degenerate state. The former standby is now the primary, but the former primary is down and might stay down. To return to normal operation, a standby server must be recreated, either on the former primary system when it comes up, or on a third, possibly new, system. Once complete, the primary and standby can be considered to have switched roles.
