| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Andrew Dunstan <andrew(at)dunslane(dot)net>, Alexander Lakhin <exclusion(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Regression tests fail on OpenBSD due to low semmns value |
| Date: | 2024-12-16 18:26:36 |
| Message-ID: | 1996423.1734373596@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Andres Freund <andres(at)anarazel(dot)de> writes:
> On 2024-12-16 12:52:46 -0500, Tom Lane wrote:
>> * Why in the world is the default value of max_wal_senders 10?
>> I find it hard to believe that there are installations using
>> more than about 3, and even there you can bet they are changing
>> a lot of other parameters.
> I don't think it's that rare as logical replication also needs a walsender
> slot... I think we're going to hurt far more users by lowering this than we'd
> help.
Hm, okay. If we just twiddle SEMAS_PER_SET we can still have
max_connections = 25 with max_wal_senders = 10, so doing that
much seems free.
regards, tom lane
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