From: Bruce Momjian <bruce@momjian.us>
Message-Id: <200610251428.k9PESFm21381@momjian.us>
Subject: Re: [HACKERS] Replication documentation addition
In-Reply-To: <1161761877.2979.10.camel@localhost.localdomain>
To: Hannu Krosing <hannu@skype.net>
Date: Wed, 25 Oct 2006 10:28:15 -0400 (EDT)
CC: Luke Lonergan <LLonergan@greenplum.com>,
	PostgreSQL-documentation <pgsql-docs@postgresql.org>,
	PostgreSQL-development <pgsql-hackers@postgresql.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
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I have added this text:

	Commercial Solutions
	--------------------
	
	Because PostgreSQL is open source and easily extended, a number of
	companies have taken PostgreSQL and created commercial closed-source
	solutions with unique failover, replication, and load balancing
	capabilities.


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

Hannu Krosing wrote:
> ?hel kenal p?eval, T, 2006-10-24 kell 22:57, kirjutas Bruce Momjian:
> > I don't think the PostgreSQL documentation should be mentioning
> > commercial solutions.
> 
> IMNSHO, having commercial solutions based on postgresql which extend
> postgres in directions not (yet?) done by core postgres is nothing to be
> ashamed of.
> 
> And we should at least mention the OSS version of Bizgres as a place
> where quite a lot of initial development is done on performance
> improvements considered too risky for mainline postgresql.
> 
> And if you need a more technical reason, you can use free libpq and psql
> to connect to even Bizgres MPP ;)
> 
> 
> > ---------------------------------------------------------------------------
> > 
> > Luke Lonergan wrote:
> > > Bruce, 
> > > 
> > > > -----Original Message-----
> > > > From: pgsql-hackers-owner@postgresql.org 
> > > > [mailto:pgsql-hackers-owner@postgresql.org] On Behalf Of Bruce Momjian
> > > > Sent: Tuesday, October 24, 2006 5:16 PM
> > > > To: Hannu Krosing
> > > > Cc: PostgreSQL-documentation; PostgreSQL-development
> > > > Subject: Re: [HACKERS] Replication documentation addition
> > > > 
> > > > 
> > > > OK, I have updated the URL.  Please let me know how you like it.
> > > 
> > > There's a typo on line 8, first paragraph:
> > > 
> > > "perhaps with only one server allowing write rwork together at the same
> > > time."
> > > 
> > > Also, consider this wording of the last description:
> > > 
> > > "Single-Query Clustering..."
> > > 
> > > Replaced by:
> > > 
> > > "Shared Nothing Clustering
> > > -----------------------
> > > 
> > > This allows multiple servers with separate disks to work together on a
> > > each query.
> > > In shared nothing clusters, the work of answering each query is
> > > distributed among
> > > the servers to increase the performance through parallelism.  These
> > > systems will
> > > typically feature high availability by using other forms of replication
> > > internally.
> > > 
> > > While there are no open source options for this type of clustering,
> > > there are several
> > > commercial products available that implement this approach, making
> > > PostgreSQL achieve
> > > very high performance for multi-Terabyte business intelligence
> > > databases."
> > > 
> > > - Luke
> > 
> -- 
> ----------------
> Hannu Krosing
> Database Architect
> Skype Technologies O?
> Akadeemia tee 21 F, Tallinn, 12618, Estonia
> 
> Skype me:  callto:hkrosing
> Get Skype for free:  http://www.skype.com

-- 
  Bruce Momjian   bruce@momjian.us
  EnterpriseDB    http://www.enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +