Re: Autovacuum Problem

From: Achilleas Mantzios <achill(at)matrix(dot)gatewaynet(dot)com>
To: pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: Autovacuum Problem
Date: 2018-04-03 06:49:04
Message-ID: b473807b-cfbf-b24b-459a-48a1c7f46d58@matrix.gatewaynet.com
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On 03/04/2018 09:36, Kein Name wrote:
> However no space seems to be freed to the system.
>
> Is there any way a bloody newbie can debug this behaviour?

VACUUM <> VACUUM FULL
Normally running VACUUM via autovacuum should help reuse free space but not actually return it to the filesystem / OS (unless it happens to be the last blocks in the data file(s)).
Ppl in normal/average type of installations/workloads no longer (since 8.2) run VACUUM (or VACUUM FULL) by hand, except in extra ordinary cases where e.g. need for free space is urgent.

> Any help is appreciated!
>
> Thanks
> Stefan
>

--
Achilleas Mantzios
IT DEV Lead
IT DEPT
Dynacom Tankers Mgmt

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