Re: Clarification on warning when connecting to 'pgbouncer' database via Pgbouncer

From: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Shaik Mohammad Mujeeb <mujeeb(dot)sk(at)zohocorp(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, mujeebskdev <mujeeb(dot)sk(dot)dev(at)gmail(dot)com>
Subject: Re: Clarification on warning when connecting to 'pgbouncer' database via Pgbouncer
Date: 2025-05-27 22:22:27
Message-ID: CAKFQuwYHTOyN435-ARCNRJpCy0aDi2isvy-3W1r20mWq8WFu+A@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

On Tue, May 27, 2025 at 3:08 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

> "David G. Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> writes:
> > psql has zero awareness of pgbouncer or any other non-PostgreSQL server
> you
> > might be able to point it to and establish a successful connection. The
> > lack of a warning previously is probably more incorrect than its presence
> > now.
>
> Yeah. I'd say the fundamental problem is that pgbouncer is abusing
> the server_version parameter, which will break plenty of things
> besides psql --- pg_dump for instance

They proxy over the real server information during actual bouncer work -
it's just their local administrative database connection - one that isn't
proxied - that is at issue here.

> Anyway, I'm minus quite a lot on silencing this warning, because
> it is telling you about real problems you are likely to hit.
>
>
How about the false-negative that was happening for years when this warning
didn't appear even though you were connected to pgbouncer and not
PostgreSQL?

David J.

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Tom Lane 2025-05-27 22:34:15 Re: Clarification on warning when connecting to 'pgbouncer' database via Pgbouncer
Previous Message Tom Lane 2025-05-27 22:08:12 Re: Clarification on warning when connecting to 'pgbouncer' database via Pgbouncer