Re: Error on vacuum: xmin before relfrozenxid

From: Andres Freund <andres(at)anarazel(dot)de>
To: Paolo Crosato <paolo(dot)crosato(at)gmail(dot)com>
Cc: pgsql-general(at)lists(dot)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Error on vacuum: xmin before relfrozenxid
Date: 2018-05-22 23:39:58
Message-ID: 20180522233957.zbflihb5qrsh3vqp@alap3.anarazel.de
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Hi,

On 2018-05-23 00:04:26 +0200, Paolo Crosato wrote:
> I managed to recover the log of the first time we run into the issue, the
> error was the same but on template1:
>
> May 8 11:26:46 xxx postgres[32543]: [1154-1] user=,db=,client= ERROR:
> found xmin 2600758304 from before relfrozenxid 400011439
> May 8 11:26:46 xxx postgres[32543]: [1154-2] user=,db=,client= CONTEXT:
> automatic vacuum of table "template1.pg_catalog.pg_authid"

pg_authid (along with a few other tables) is shared between
databases. So that's just hte same error. At which rate are you
creating / updating database users / roles?

Greetings,

Andres Freund

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