Re: 2-phase commit

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От Bruce Momjian
Тема Re: 2-phase commit
Дата
Msg-id 200309291445.h8TEjvB15221@candle.pha.pa.us
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Ответ на Re: 2-phase commit  ("Marc G. Fournier" <scrappy@postgresql.org>)
Ответы Re: 2-phase commit  (Tom Lane <tgl@sss.pgh.pa.us>)
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Marc G. Fournier wrote:
> > > > is the "commit done" message needed ?
> > >
> > > Of course ... how else will the Slave commit?  From my understanding, the
> > > concept is that the master sends a commit ready to the slave, but the OK
> > > back is that "OK, I'm ready to commit whenever you are", at which point
> > > the master does its commit and tells the slave to do its ...
> >
> > Or the slave could reject the request.
> 
> Huh?  The slave has that option??  In what circumstance?

I thought the slave could reject if someone local already had the row
locked.

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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