Re: 2-phase commit

Satoshi, can you get this ready for inclusion in 7.5? We need a formal
proposal of how it will work from the user's perspective (new
commands?), and how it will internally work. It seem Heikki Linnakangas
has also started working on this and perhaps he can help.

Ideally, we should have this proposal when we start 7.5 development in a
few weeks.

I know some people have concerns about 2-phase commit, from a
performance perspective and from a network failure perspective, but I
think there are enough people who want it that we should see how this
can be implemented with the proper safeguards.

---------------------------------------------------------------------------

Satoshi Nagayasu wrote:
>
> Andrew Sullivan <andrew(at)libertyrms(dot)info> wrote:
> > On Fri, Oct 10, 2003 at 09:46:35AM +0900, Tatsuo Ishii wrote:
> > > Satoshi, the only guy who made a trial implementation of 2PC for
> > > PostgreSQL, has already showed that 2PC is not that slow.
> >
> > If someone has a fast implementation, so much the better. I'm not
> > opposed to fast implementations!
>
> The pgbench results of my experimental 2PC implementation
> and plain postgresql are available.
>
> PostgreSQL 7.3
> http://snaga.org/pgsql/pgbench/pgbench-REL7_3.log
>
> Experimental 2PC in PostgreSQL 7.3
> http://snaga.org/pgsql/pgbench/pgbench-TPC0_0_2.log
>
> I can't see a grave overhead from this comparison.
>
> >
> > A
> >
> > --
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> >
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>
> --
> NAGAYASU Satoshi <snaga(at)snaga(dot)org>
>
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