Re: allow changing autovacuum_max_workers without restarting

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Peter Eisentraut <peter(at)eisentraut(dot)org>
Cc: Nathan Bossart <nathandbossart(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers(at)lists(dot)postgresql(dot)org, "Imseih (AWS), Sami" <simseih(at)amazon(dot)com>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: allow changing autovacuum_max_workers without restarting
Date: 2025-04-29 17:19:18
Message-ID: 1050120.1745947158@sss.pgh.pa.us
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Peter Eisentraut <peter(at)eisentraut(dot)org> writes:
> On 28.04.25 16:41, Nathan Bossart wrote:
>> However, weren't we considering reverting some of this stuff [0]? I see
>> that sawshark is now choosing max_connections = 40 and
>> autovacuum_worker_slots = 6, and since there are no other apparent related
>> buildfarm failures, I'm assuming that nobody else is testing the 60
>> semaphores case anymore.
>>
>> [0] https://postgr.es/m/618497.1742347456%40sss.pgh.pa.us

> (I don't have any thoughts on this.)

Andres seemed lukewarm about reverting 38da05346 or 6d0154196, so
I left it be for the moment. But I still feel the argument is good
that "these will do little except confuse future hackers". Barring
objection, I'll go revert them.

regards, tom lane

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