Re: port conflicts when running tests concurrently on windows.

Hi,

On 2021-12-09 14:35:37 +0100, Peter Eisentraut wrote:
> On 09.12.21 03:44, Thomas Munro wrote:
> > On Thu, Dec 9, 2021 at 11:46 AM Andres Freund<andres(at)anarazel(dot)de> wrote:
> > > Is it perhaps time to to use unix sockets on windows by default
> > > (i.e. PG_TEST_USE_UNIX_SOCKETS), at least when on a new enough windows?
>
> Makes sense to get this to work, at least as an option.

With https://github.com/anarazel/postgres/commit/046203741803da863f6129739fd215f8a32ec357
all tests pass. pg_regress requires PG_REGRESS_SOCK_DIR because it checks for
TMPDIR, but windows only has TMP and TEMP.

> > Makes sense. As a data point, it looks like this feature is in all
> > supported releases of Windows. It arrived in 1803, already EOL'd, and
> > IIUC even a Windows Server 2016 "LTSC" system that's been disconnected
> > from the internet and refusing all updates reaches "mainstream EOL"
> > next month.
>
> I believe the "18" in "1803" refers to 2018. We have Windows buildfarm
> members that mention 2016 and 2017 in their title. Would those be in
> trouble?

Perhaps it could make sense to print the windows version somewhere as part of
a windows build? Perhaps in the buildfarm client? Seems like it could be
generally useful, outside of this specific issue.

The most minimal thing would be to just print cmd /c ver or
such. systeminfo.exe output could also be useful, but has a bit of runtime
(1.5s on my windows VM).

Greetings,

Andres Freund