On 2013-04-21 21:04:17 -0400, Bruce Momjian wrote: > On Sun, Apr 21, 2013 at 08:22:38PM +0100, Simon Riggs wrote: > > On 21 April 2013 15:09, Bruce Momjian <[email protected]> wrote: > > > > > New text is, based on Simon's request about adding failover speedup: > > > > > > Improve performance of streaming replication log shipping and > > > standby promotion (Andres Freund, Simon Riggs) > > > > Um, it's hard to see how that text relates to what I requested. > > > > It's an important thing for High Availability that failover is now > > fast; a feature we have been waiting for some time. The point is not > > that the performance is improved, the point is we can now achieve 5 > > nines availability, whereas before we couldn't. > > > > > It is worth breaking those out into two items? > > > > Yes, they are completely unrelated. > > OK, new text: > > <listitem> > <para> > Improve performance of non-synchronous streaming log shipping (Andres > Freund) > </para> > </listitem>
Its about synchronous_commit = off of which is more than just non-synchronous replication. How about * Greatly reduce replication delay in streaming replication when synchronous_commit=off (or asynchronous commits) are used locally > <listitem> > <para> > Allow much faster fail-over to a standby server (Simon Riggs) > </para> > </listitem> I think this should also mention Kyotaro Horiguchi (c.f. fd4ced5230162b50a5c9d33b4bf9cfb1231aa62e) Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-committers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
