From: Chris Hoover <revoohc@gmail.com>
To: pgsql-admin@postgresql.org Admin <pgsql-admin@postgresql.org>
Subject: More Autovacuum questions
Date: Tue, 15 Jul 2008 09:19:48 -0400
Message-ID: <1d219a6f0807150619o567709ebu7d28429d2907bf82@mail.gmail.com> (raw)
Another question.
When autovacuum sleeps, does it release the lock it has on the table?
What we would like to have happen is for vacuum to work for a while, sleep,
and while it is sleeping run an analyze on the table. We need this due to
how quickly our data is changing. Currently we are running analyze every 5
minutes against the table of question and get a very serious performance hit
when vacuum runs due to the index stats getting out of date. As soon as we
rerun analyze after the vacuum happiness returns.
The pg_total_relation_size for the table in question is 64GB, and as stated
above is a very heavily used and modifed table.
Thanks for any comments,
Chris
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: revoohc@gmail.com
Subject: Re: More Autovacuum questions
In-Reply-To: <1d219a6f0807150619o567709ebu7d28429d2907bf82@mail.gmail.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