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Subject: Re: [COMMITTERS] pgsql: Remove replicaiton FAQ item.
From: Jeff Davis <jdavis-pgsql@empires.org>
To: Bruce Momjian <pgman@candle.pha.pa.us>
Cc: "Marc G. Fournier" <scrappy@postgresql.org>,
	Robert Treat <xzilla@users.sourceforge.net>,
	PostgreSQL-documentation <pgsql-docs@postgresql.org>
In-Reply-To: <200504241201.j3OC15V17101@candle.pha.pa.us>
References: <200504241201.j3OC15V17101@candle.pha.pa.us>
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Date: Sun, 24 Apr 2005 11:04:42 -0700
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Should the text include a mention of synchronous vs. asynchronous? Or
does master-master imply synchronous?

Regards,
	Jeff Davis

On Sun, 2005-04-24 at 08:01 -0400, Bruce Momjian wrote:
> Marc G. Fournier wrote:
> > On Tue, 16 Nov 2004, Robert Treat wrote:
> > 
> > > On Sunday 14 November 2004 16:33, Bruce Momjian wrote:
> > >> Log Message:
> > >> -----------
> > >> Remove replicaiton FAQ item.
> > >>
> > >> Modified Files:
> > >> --------------
> > >>     pgsql/doc:
> > >>         FAQ (r1.269 -> r1.270)
> > >>
> > >> (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/FAQ.diff?r1=1.269&r2=
> > >> 1.270) pgsql/doc/src/FAQ:
> > >>         FAQ.html (r1.227 -> r1.228)
> > >>
> > >> (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/FAQ.html.diff
> > >> ?r1=1.227&r2=1.228)
> > >
> > > While the answer may have been a little dated, this still seems to be an FAQ.
> > > Was there a discussion on removing this?  If so I'll go read that, but ISTM
> > > this question should remain.
> > 
> > agreed, this definitly does fall under a "Very FAQ" kinda thing ... 
> > pointers to the various methods that are currently in use, at a minimum, 
> > would be good ...
> 
> Yep, big mistake my removing the replication FAQ item. I have re-added a
> new one:
> 
> 	4.21) What replication solutions are available?
> 	
> 	Though "replication" is a single term, there are two major replication
> 	technologies. Multi-master replication allows read/write queries to be
> 	sent to multiple replicated computers. Using this capability has a
> 	serious performance impact. Pgcluster is the most popular such solution
> 	available for PostgreSQL. Master-slave replication allows a single
> 	master to receive read/write queries, with slaves able to accept only
> 	read/SELECT queries. The most popular master-slave PostgreSQL
> 	replication solution is Slony. There are also commercial and
> 	hardware-based replication solutions available.
>