Autovacuum Daemon is Turned On by Default in Postgres 8.3.8?

On Wednesday 02 June 2010 5:40:58 pm Wang, Mary Y wrote:

Hi,

I'm looking at my log file (see my log file below) and it seems like the
autovacuum daemon is turned on by default in Postgres 8.3.8. Does that
mean that I no longer need to manually invoke the autovacuum command
anymore? I used to do it manually in an older version of Postgres.

tail postgresql-2010-06-02_000000.log
DEBUG: autovacuum: processing database "template1"
DEBUG: server process (PID 31719) exited with exit code 0
DEBUG: autovacuum: processing database "marydatabase"
DEBUG: server process (PID 31729) exited with exit code 0
DEBUG: autovacuum: processing database "postgres"
DEBUG: server process (PID 31739) exited with exit code 0
DEBUG: autovacuum: processing database "template1"
DEBUG: server process (PID 31741) exited with exit code 0
DEBUG: autovacuum: processing database "marydatabase"
DEBUG: server process (PID 31753) exited with exit code 0

Thanks
Mary

You talking about manually invoking Vacuum or autovacuum?

--
Adrian Klaver
adrian.klaver@gmail.com

I used to execute the VACCUM and ANALYZE commands manually in a Postgres 7.x.x version.
So my question was that I assume that I no longer have to perform those two commands manually anymore. I just wanted to be sure.
Mary

-----Original Message-----
From: Adrian Klaver [mailto:adrian.klaver@gmail.com]
Sent: Wednesday, June 02, 2010 6:08 PM
To: pgsql-general@postgresql.org
Cc: Wang, Mary Y
Subject: Re: [GENERAL] Autovacuum Daemon is Turned On by Default in Postgres 8.3.8?

On Wednesday 02 June 2010 5:40:58 pm Wang, Mary Y wrote:

Hi,

I'm looking at my log file (see my log file below) and it seems like
the autovacuum daemon is turned on by default in Postgres 8.3.8. Does
that mean that I no longer need to manually invoke the autovacuum
command anymore? I used to do it manually in an older version of Postgres.

tail postgresql-2010-06-02_000000.log
DEBUG: autovacuum: processing database "template1"
DEBUG: server process (PID 31719) exited with exit code 0
DEBUG: autovacuum: processing database "marydatabase"
DEBUG: server process (PID 31729) exited with exit code 0
DEBUG: autovacuum: processing database "postgres"
DEBUG: server process (PID 31739) exited with exit code 0
DEBUG: autovacuum: processing database "template1"
DEBUG: server process (PID 31741) exited with exit code 0
DEBUG: autovacuum: processing database "marydatabase"
DEBUG: server process (PID 31753) exited with exit code 0

Thanks
Mary

You talking about manually invoking Vacuum or autovacuum?

--
Adrian Klaver
adrian.klaver@gmail.com

On Wednesday 02 June 2010 6:17:28 pm Wang, Mary Y wrote:

I used to execute the VACCUM and ANALYZE commands manually in a Postgres
7.x.x version. So my question was that I assume that I no longer have to
perform those two commands manually anymore. I just wanted to be sure.
Mary

You don't have to, but you can still run those commands if needed. They are
still there.

--
Adrian Klaver
adrian.klaver@gmail.com

On Wed, Jun 2, 2010 at 6:40 PM, Wang, Mary Y <mary.y.wang@boeing.com> wrote:

Hi,

I'm looking at my log file (see my log file below) and it seems like the autovacuum daemon is turned on by default in Postgres 8.3.8.  Does that mean that I no longer need to manually invoke the autovacuum command anymore?  I used to do it manually in an older version of Postgres.

For most installations autovacuum with default settings is just fine.
If you run a really busy site then you might have to adjust the
parameters of autovac as well as the free space map.