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 <bruce@momjian.us> 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/
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