From: Bruce Momjian <pgman@candle.pha.pa.us>
Message-Id: <200510131733.j9DHXG814760@candle.pha.pa.us>
Subject: Re: [HACKERS] Added documentation about caching, reliability
In-Reply-To: <1128848082.8300.199.camel@localhost.localdomain>
To: Simon Riggs <simon@2ndquadrant.com>
Date: Thu, 13 Oct 2005 13:33:16 -0400 (EDT)
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>,
	PostgreSQL-documentation <pgsql-docs@postgresql.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset=US-ASCII


Applied.  Thanks.

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

Simon Riggs wrote:
> On Wed, 2005-09-28 at 14:26 -0400, Bruce Momjian wrote:
> > I have added a section to the top of the WAL docs explaining caching and
> > reliability issues:
> > 
> > 	http://candle.pha.pa.us/main/writings/pgsql/sgml/reliability.html
> > 
> > I also renamed the chapter "Reilability" rather than "WAL."
> > 
> 
> I submitted a patch last week that builds further on Bruce's changes.
> [Docs for PITR and full_page_writes interaction, 2 Oct]
> 
> The patch includes:
> 
> 1. Minor rewording of the case that Bruce refers to "recovery" and I
> have differentiated the cases of crash recovery and PITR. The
> corresponding section of the backup chapter has also been changed to
> include a short discussion on full_page_writes and WAL compression, with
> a link back to the WAL section.
> 
> 2. Merged the 1st and 2nd sects of Reliability into a single section.
> The 1st section was only a single paragraph and so that improves
> readability. I've freshened that section, since it has not been updated
> since 7.1 and currently still reads as if WAL has just been released.
> 
> 3. I've updated the section on WAL configuration with further WAL
> related comments and clarifications. These relate to full_page_writes
> and appropriate settings of wal_buffers to match.
> 
> Best Regards, Simon Riggs
> 
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Have you searched our list archives?
> 
>                http://archives.postgresql.org
> 

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073