2014-03-10 20:11 GMT+01:00 Bruce Momjian <br...@momjian.us>: > On Mon, Mar 10, 2014 at 07:40:42PM +0100, Pavel Stehule wrote: > > > > > > > > There were several bottlenecks in this area removed in 9.2 and 9.3. > > > Unfortunately the worst of those bottlenecks were in the server, > so they > > depend > > > on what database you are upgrading from, and so won't help you much > > upgrading > > > from 9.1. > > > > Yes, I assume 9.3 will be much better, though Jeff is right that if > it > > is pg_dump locking that is hurting you, you might not see a win > even in > > 9.3. > > > > > > I'll see it next year when we plan to migrate to 9.4 > > > > I though so some form of "superlock" can be interesting, because nobody > can > > work with database when it is upgraded. > > Remember pg_upgrade is using pg_dump, which then connecting to a > backend, so passing that super-lock mode there is not ideal. The fixes > in 9.3 improve locking in all user cases, not just upgrades. > > nice
Thank you Pavel > -- > Bruce Momjian <br...@momjian.us> http://momjian.us > EnterpriseDB http://enterprisedb.com > > + Everyone has their own god. + >
