Hi, thanks alot for your answers. Yesterday I have updated the kernel. After a reboot, the ECC-Kernel error still appears. Then I've cleaned the RAM-Slots with nose-paper :), rebooted the machine, and the error was away! Unbelievable, the error was before on both the machines. Yesterday night, i've switched my Slony-replication and the IP address. Right now, thanks to god, I'm on a safe side. :) Now i will clean the old production machine :) and putting it back to the replication. :) Over again, thanks very much, I like PostgreSQL and the Community, it's a very very good project :)! Regards, Martin -----Ursprüngliche Nachricht----- Von: Tom Lane <tgl@xxxxxxxxxxxxx> Gesendet: 08.08.07 18:36:09 An: "Nick Fankhauser" <nickf@xxxxxxxxxx> CC: pgsql-admin@xxxxxxxxxxxxxx Betreff: Re: Specific questions about wraparound and vacuum "Nick Fankhauser" <nickf@xxxxxxxxxx> writes: > 1) Do we need to do a *full* vacuum or just a "lazy" vacuum to take care of > the xid wraparound issues? Lazy is sufficient --- as long as it's database-wide including the system catalogs (which means a superuser has to do it). > Or... is it the case that by one billion, the docs really mean 2^30 > (1073741824) ? 2^30. You appear to have executed a bit under 600000 transactions since vacuuming, so if that's three hours then you've got about 5000 hours until wraparound. > 4) The documentation implies that I need to vacuum *every* database, even if > I'm not using them all, so I vacuumed template1, but can't connect to > template0. Do I really need to vacuum databases where no transactions are > occurring? If so, how to I deal with template0? You don't need to touch frozen databases. This was discussed yesterday ... regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq _______________________________________________________________________ Jetzt neu! Schützen Sie Ihren PC mit McAfee und WEB.DE. 3 Monate kostenlos testen. http://www.pc-sicherheit.web.de/startseite/?mc=022220 ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster