Re: Postgres becoming slow, only full vacuum fixes it

From: Kiriakos Tsourapas <ktsour(at)gmail(dot)com>
To: Ondrej Ivanič <ondrej(dot)ivanic(at)gmail(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Postgres becoming slow, only full vacuum fixes it
Date: 2012-09-25 11:10:08
Message-ID: E2E72F7C-6689-4924-90F6-25A2DDC064A8@gmail.com
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Hi,

Suggestion noted.
Nevertheless, I cannot imagine what it would help. Actually, the cost_delay makes autovacuum freeze when it takes more time than expected, therefore, having it enabled should help the system.

I may try it as a last possible resolution (remember that I have to wait for a couple of days for the problem to appear, so any test I perform will be taking days to figure out if it helped !!!)

>
> I had similar issue and I disabled cost based auto vacuum:
> autovacuum_vacuum_cost_delay = -1
>
> -1 says that vacuum_cost_delay will be used and default value for
> vacuum_cost_delay is 0 (ie. off)
>
> Of couse you need to change other autovacuum settings but you did that.
>
> --
> Ondrej Ivanic
> (ondrej(dot)ivanic(at)gmail(dot)com)

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