Re: autovacuum_vacuum_cost_limit

From: Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>
To: Henry Francisco Garcia Cortez <garcortez(at)gmail(dot)com>, pgsql-admin(at)lists(dot)postgresql(dot)org
Cc: david(dot)g(dot)johnston(at)gmail(dot)com
Subject: Re: autovacuum_vacuum_cost_limit
Date: 2021-04-10 01:43:17
Message-ID: 464b3f924e940410da74fdc254c3aba275fc5880.camel@cybertec.at
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On Fri, 2021-04-09 at 14:19 -0600, Henry Francisco Garcia Cortez wrote:
> Hi community I have a question about autovacuum_vacuum_cost_limit
> I want to increase this parameter I have read on internet that value
> It could have as maximum 10,000 but I want to know, what will it be the troubles if I did that change

That will keep PostgreSQL from functioning properly.

I would never increase the setting beyond the 20ms that were the default before v12.

If the three autovacuum workers allowed by autovacuum_max_workers are already enough
to strain your I/O resources, consider getting more powerful storage.

Yours,
Laurenz Albe
--
Cybertec | https://www.cybertec-postgresql.com

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