From: | Bruce Momjian <bruce(at)momjian(dot)us> |
---|---|
To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
Cc: | pgsql-committers(at)postgresql(dot)org |
Subject: | Re: pgsql: Add URLs for : * Speed WAL recovery by allowing more than one |
Date: | 2008-03-18 15:36:18 |
Message-ID: | 200803181536.m2IFaIm14324@momjian.us |
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Lists: | pgsql-committers pgsql-hackers |
Simon Riggs wrote:
> On Tue, 2008-03-18 at 03:59 +0000, Bruce Momjian wrote:
> > Log Message:
> > -----------
> > Add URLs for :
> >
> > * Speed WAL recovery by allowing more than one page to be prefetched
> >
> > This involves having a separate process that can be told which pages
> > the recovery process will need in the near future.
> >
> > > http://archives.postgresql.org/pgsql-general/2007-12/msg00683.php
> > > http://archives.postgresql.org/pgsql-hackers/2007-12/msg00497.php
> > <
>
> This TODO item presumes the solution, rather than describes the problem
> that needs to be solved. Other solutions have been proposed also and
> AFAIK nothing has been agreed.
The general consensus from the discussion was that multi-plexing the I/O
was easier and simpler than trying to multiplex the actual recovery
code. Until you can get agreement on a more bold approach, the TODO
remains unchanged.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://postgres.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
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