Re: "pg_ctl: the PID file ... is empty" at end of make check

On Tue, Oct 15, 2019 at 1:55 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com> writes:
> > Agreed. Secret non-shareable bug report filed. Fingers crossed.
>
> Since that conversation, longfin has shown the same symptom
> just once more:
>
> longfin | REL_11_STABLE | 2019-07-28 22:29:03 | recoveryCheck | waiting for ser
> ver to shut down......pg_ctl: the PID file "/Users/buildfarm/bf-data/REL_11_STAB
> LE/pgsql.build/src/test/recovery/tmp_check/t_001_stream_rep_standby_2_data/pgdat
> a/postmaster.pid" is empty
>
> and now prairiedog has shown it too:
>
> https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=prairiedog&dt=2019-10-14%2021%3A45%3A47
>
> which is positively fascinating, because prairiedog is running a
> bronze-age version of macOS that surely never heard of APFS.
> So this makes it look like this is a basic macOS bug that's not
> as filesystem-dependent as one might think.

Does https://github.com/macdice/unlinktest show the problem on that system?

> Trawling the buildfarm database finds no other matches in the last year,
> so whatever it is, it's pretty darn improbable.
>
> Did you ever get any reaction to that bug report?

No acknowledgement. I did learn from an anonymous source that "it’s
prioritized and in the queue".