On Fri, Dec 21, 2007 at 10:53:49AM -0500, beer@cmu.edu wrote:
> I am trying to upgrade my database from 8.0 to 8.1 and am looking for a
> little info/advice.
>
> This is a production database that we are migrating and it is in CONSTANT
> use, so the maintenance window must be small and hopefully mostly off-hours.
The usual answer is use slony. You can use it to replicate the 8.0
server onto an 8.1 server. This may take weeks/months/years/whatever to
synchronise. When the slave is up to date, you pull the plug on the 8.0
server and get everyone to use the 8.1 server... No downtime...
Have a nice day,
--
Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/
> Those who make peaceful revolution impossible will make violent revolution inevitable.
> -- John F Kennedy
