| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Patrick Welche <prlw1(at)newn(dot)cam(dot)ac(dot)uk> |
| Cc: | "Marc G(dot) Fournier" <scrappy(at)postgresql(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Zeugswetter Andreas SB SD <ZeugswetterA(at)spardat(dot)at>, Andrew Sullivan <andrew(at)libertyrms(dot)info>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: 2-phase commit |
| Date: | 2003-09-26 17:58:07 |
| Message-ID: | 200309261758.h8QHw7W19351@candle.pha.pa.us |
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| Lists: | pgsql-hackers |
Patrick Welche wrote:
> On Fri, Sep 26, 2003 at 02:49:30PM -0300, Marc G. Fournier wrote:
> ...
> > if we are talking two computers sitting next to each other on a switch,
> > you'd expect those to be low ... but if you were talking about two
> > seperate geographical locations (and yes, I realize you are adding lag to
> > the mix with waiting for responses), you'd expect those #s to rise ...
>
> Which I thought was the whole point of using a group communication protocol
> such as spread in postgresql-r. It seemed solved there...
Right, but I think we want to try to do two-phase commit without spread.
Spread seems overkill for this usage.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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