Re: Cirrus-ci is lowering free CI cycles - what to do with cfbot, etc? - Mailing list pgsql-hackers

From Andres Freund
Subject Re: Cirrus-ci is lowering free CI cycles - what to do with cfbot, etc?
Date
Msg-id 20230823214341.stppgfnhrhmb6igf@awork3.anarazel.de
Whole thread Raw
In response to Re: Cirrus-ci is lowering free CI cycles - what to do with cfbot, etc?  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: Cirrus-ci is lowering free CI cycles - what to do with cfbot, etc?
List pgsql-hackers
Hi,

On 2023-08-23 17:02:51 -0400, Tom Lane wrote:
> Daniel Gustafsson <daniel@yesql.se> writes:
> > On 23 Aug 2023, at 21:22, Andres Freund <andres@anarazel.de> wrote:
> >> I think there's more effective ways to make this cheaper. The basic thing
> >> would be to use libpq instead of forking of psql to make a connection
> >> check.
>
> > I had it in my head that not using libpq in pg_regress was a deliberate choice,
> > but I fail to find a reference to it in the archives.
>
> I have a vague feeling that you are right about that.  Perhaps the
> concern was that under "make installcheck", pg_regress might be
> using a build-tree copy of libpq rather than the one from the
> system under test.  As long as we're just trying to ping the server,
> that shouldn't matter too much I think

Or perhaps the opposite? That an installcheck pg_regress run might use the
system libpq, which doesn't have the symbols, or such?

Either way, with a function like PQping(), which existing in well beyond the
supported branches, that shouldn't be an issue?


> ... unless we hit problems with, say, a different default port number or
> socket path compiled into one copy vs. the other?  That seems like it's
> probably a "so don't do that" case, though.

If we were to find such a case, it seems we could just add whatever missing
parameter to the connection string? I think we would likely already hit such
problems though, the psql started by an installcheck pg_regress might use the
system libpq, I think?

Greetings,

Andres Freund



pgsql-hackers by date:

Previous
From: Daniel Gustafsson
Date:
Subject: Re: Cirrus-ci is lowering free CI cycles - what to do with cfbot, etc?
Next
From: Jacob Champion
Date:
Subject: Re: Fix error handling in be_tls_open_server()