Re: Interaction of PITR backups and Bulkoperationsavoiding WAL

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От Jim C. Nasby
Тема Re: Interaction of PITR backups and Bulkoperationsavoiding WAL
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Msg-id 20070515235127.GE20707@nasby.net
обсуждение исходный текст
Ответ на Re: Interaction of PITR backups and Bulkoperationsavoiding WAL  (Bruce Momjian <bruce@momjian.us>)
Ответы Re: Interaction of PITR backups and Bulkoperationsavoiding WAL  (Bruce Momjian <bruce@momjian.us>)
Список pgsql-hackers
Simon intended to commit this per
http://archives.postgresql.org/pgsql-hackers/2007-03/msg01761.php
(actually, there was a change in what was being done). I suspect this
item isn't valid any longer.

On Tue, May 15, 2007 at 07:30:58PM -0400, Bruce Momjian wrote:
> 
> This has been saved for the 8.4 release:
> 
>     http://momjian.postgresql.org/cgi-bin/pgpatches_hold
> 
> ---------------------------------------------------------------------------
> 
> Simon Riggs wrote:
> > On Fri, 2007-03-09 at 11:47 -0500, Tom Lane wrote:
> > > "Simon Riggs" <simon@2ndquadrant.com> writes:
> > > > On Fri, 2007-03-09 at 11:15 -0500, Tom Lane wrote:
> > > >> It strikes me that allowing archive_command to be changed on the fly
> > > >> might not be such a good idea though, or at least it shouldn't be
> > > >> possible to flip it from empty to nonempty during live operation.
> > > 
> > > > I'd rather fix it the proposed way than force a restart. ISTM wrong to
> > > > have an availability feature cause downtime.
> > > 
> > > I don't think that people are very likely to need to turn archiving on
> > > and off on-the-fly.  Your proposed solution introduces a great deal of
> > > complexity (and risk of future bugs-of-omission, to say nothing of race
> > > conditions) to solve a non-problem.  We have better things to be doing
> > > with our development time.
> > 
> > It's certainly a quicker fix. Unless others object, I'll set
> > archive_command to only be changeable at server startup.
> > 
> > -- 
> >   Simon Riggs             
> >   EnterpriseDB   http://www.enterprisedb.com
> > 
> > 
> > 
> > ---------------------------(end of broadcast)---------------------------
> > TIP 6: explain analyze is your friend
> 
> -- 
>   Bruce Momjian  <bruce@momjian.us>          http://momjian.us
>   EnterpriseDB                               http://www.enterprisedb.com
> 
>   + If your life is a hard drive, Christ can be your backup. +
> 
> ---------------------------(end of broadcast)---------------------------
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> 
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> 

-- 
Jim Nasby                                      decibel@decibel.org
EnterpriseDB      http://enterprisedb.com      512.569.9461 (cell)


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