From: Tom Lane <tgl@sss.pgh.pa.us>
To: Bruce Momjian <bruce@momjian.us>
Cc: Josh Berkus <josh@agliodbs.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Subject: Re: Return of the Solaris vacuum polling problem -- anyone remember this?
Date: Sun, 22 Aug 2010 11:23:41 -0400
Message-ID: <15870.1282490621@sss.pgh.pa.us> (raw)
In-Reply-To: <201008220240.o7M2eC728013@momjian.us>
References: <201008220240.o7M2eC728013@momjian.us>
Bruce Momjian <bruce@momjian.us> writes:
> We often mention that we do vacuum freeze for anti-wraparound vacuum,
> but not for pg_clog file removal, which is the primary trigger for
> autovacuum vacuum freezing. I have added the attached documentation
> patch for autovacuum_freeze_max_age; back-patched to 9.0.
This patch does not actually seem like an improvement. The paragraph is
all about transaction age, but you've inserted something entirely
unrelated, and not only that but chosen to make the unrelated thing seem
like the major consequence and anti-wraparound an afterthought.
regards, tom lane
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-hackers@postgresql.org
Cc: tgl@sss.pgh.pa.us, bruce@momjian.us, josh@agliodbs.com
Subject: Re: Return of the Solaris vacuum polling problem -- anyone remember this?
In-Reply-To: <15870.1282490621@sss.pgh.pa.us>
* 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