I brought down the master then the slave and upgraded both. Then I did the rsync and brought both up.. This worked. However with the database being very large it took quite a while. It seemed rsync had to make a lot of changes.. this surprised me. I thought they would be almost identical. But in the end it did work. just took longer than I had hoped. We will soon be tripling the size of our database as we move oracle data in.. so this process may not be so feasible next time. -- View this message in context: http://postgresql.1045698.n5.nabble.com/How-to-upgrade-from-9-1-to-9-2-with-replication-tp5728941p5729618.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance