Hello, Thanks for the explanation :) I thought there was some technical limitation when dump/reload is used, and I just wasn't seeing it after my dump/reload successfully got me from 7.3.4 to 8.0.3. Still, DB replication sounds very useful, so I'd still be interested in Slony-I, Daffodil, and Mammoth comparison, if anyone has used more than one of them. Thanks, Otis --- Christopher Browne <cbbrowne@xxxxxxx> wrote: > A long time ago, in a galaxy far, far away, ogjunk-pgjedan@xxxxxxxxx > wrote: > > I am about to upgrade from 7.3.4 to 8.0.3, and I read that using a > DB > > replication tool is a good way to go about it. > > Replication is useful for this purpose if it helps you cut down on > the > time the transition takes. > > If the database is relatively small, and it only takes a few minutes > to load the data in, then it's far simpler to do a dump/reload. > > But if you discover that the dump/reload takes 4 hours, and you're > only permitted 20 minutes of downtime, the complexities of > replication > may get forced on you... > -- > output = ("cbbrowne" "@" "ntlug.org") > http://linuxdatabases.info/info/slony.html > Sheridan:"So how did you find out all of this?" > Bester:"I'm a telepath. Work it out." <*> > > ---------------------------(end of > broadcast)--------------------------- > TIP 7: don't forget to increase your free space map settings >