Re: Death postgres

From: Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>
To: Marc Millas <marc(dot)millas(at)mokadb(dot)com>, "pgsql-general(at)lists(dot)postgresql(dot)org" <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Re: Death postgres
Date: 2023-05-07 18:42:00
Message-ID: 9061fac25866f02c539ae389ace7617d9cfdca74.camel@cybertec.at
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On Sat, 2023-05-06 at 03:14 +0200, Marc Millas wrote:
> postgres 14.2 on Linux redhat
>
> temp_file_limit set around 210 GB.
>
> a select request with 2 left join have crashed the server (oom killer) after the postgres
> disk occupation did grow from 15TB to 16 TB.
>
> What are the cases where postgres may grow without caring about temp_file_limit ?

That's too little information for a decent answer.
One obvious answer is: if it is not writing temporary files.

Yours,
Laurenz Albe

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