public inbox for [email protected]  
help / color / mirror / Atom feed
From: Matthew T. O'Connor <[email protected]>
To: [email protected]
Cc: Matthew T. O'Connor <[email protected]>
Cc: Fabien COELHO <[email protected]>
Cc: Bruce Momjian <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Cc: PostgreSQL advocacy <[email protected]>
Subject: Re: [HACKERS] What can we learn from MySQL?
Date: Fri, 23 Apr 2004 11:52:14 -0400 (EDT)
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>
	<[email protected]>
	<[email protected]>

> Does the current implementation of pg_autovacuum have a way of setting
> windows where it is allowed to vacuum? Many large 24/7 will only allow
> vacuumming at certain times of the day.

No the current implementation doesn't, but such a feature is in the works
(planned anyway).  What I was envisioning is the ability to set two
different sets of thresholds (peak / off peak).  If you demand zero
vacuuming during peak times, you could set that threshold to -1, or some
such setting.

FYI I wouldn't remcommend defaulting pg_autovacuum to on until it does
this, and a few more things that are also planned (see the archives).

Matthew




view thread (145+ messages)  latest in thread

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: [email protected]
  Cc: [email protected], [email protected], [email protected], [email protected], [email protected], [email protected]
  Subject: Re: [HACKERS] What can we learn from MySQL?
  In-Reply-To: <[email protected]>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox