pg.ddx.io pgsql-admin@postgresql.org mailing list archivehelp / color / mirror / Atom feed
From: Greg Smith <greg@2ndQuadrant.com>
To: pgsql-admin@postgresql.org
Subject: Re: archive_timeout behavior (8.4.6)
Date: Mon, 02 May 2011 00:09:36 -0400
Message-ID: <4DBE2E80.50008@2ndQuadrant.com> (raw)
In-Reply-To: <4DB21BFA.4030800@consistentstate.com>
References: <4DB21BFA.4030800@consistentstate.com>
On 04/22/2011 08:23 PM, Brian Fehrle wrote:
> So long story short, if a cluster has zero activity, and
> archive_timeout is not set to 0, when it reaches that timeout should
> it generate a file, or just skip because it would be 100% empty?
You're right about what you've seen here, there is some logic in the
WAL/checkpoint code that can avoid doing anything when the timeout hits,
if there hasn't been any new WAL written since the last one. That
hasn't changed for a while now though (since I've been watching that
part of the source code at least) so I'm not sure what differences
between 8.4.6 and earlier 8.4 versions you think you've observed.
--
Greg Smith 2ndQuadrant US greg@2ndQuadrant.com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.us
"PostgreSQL 9.0 High Performance": http://www.2ndQuadrant.com/books
view thread (2+ messages)
Message-ID: <4DBE2E80.50008@2ndQuadrant.com> Permalink: ../4DBE2E80.50008@2ndQuadrant.com/ Also on: postgresql.org/message-id/4DBE2E80.50008@2ndQuadrant.com ·
reply
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Reply to all the recipients using the --to and --cc options: reply via email To: pgsql-admin@postgresql.org Cc: greg@2ndQuadrant.com Subject: Re: archive_timeout behavior (8.4.6) In-Reply-To: <4DBE2E80.50008@2ndQuadrant.com> * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions for how to clone and mirror all data and code used for this inbox