On Thu, Mar 29, 2012 at 03:23:01PM +0100, Simon Riggs wrote: > On Thu, Mar 29, 2012 at 3:04 PM, Marko Kreen <mark...@gmail.com> wrote: > > Next question: how can flipping archive_mode on and off, > > with restarts, near wraparound point, break epoch on master? > > > > http://lists.pgfoundry.org/pipermail/skytools-users/2012-March/001609.html > > > > Any ideas? > > > > Could WAL playback from backend with different archive_mode setting > > cause it somehow? > > The current code would allow it, if you managed to go for 4 billion > xids between checkpoints. If that happened, it would give an off by > one error each time it happened. > > I don't believe that is possible.
Yes, that does not sound like probable case. -- marko -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
