On 2020-01-04 01:15, Tom Lane wrote:
> =?UTF-8?Q?Mikael_Kjellstr=c3=b6m?= <mikael.kjellstrom@mksoft.nu> writes:
>> I think Tom Lane found the "problem". It has to do with the semaphores
>> taking up FD's.
>
> Hm, no, because:
Yes, saw that after I posted my answer.
>> Sure. I compiled pgsql 12 and this is the complete logfile after
>> starting up the server the first time with log_min_messages=debug2:
>> 2020-01-04 01:03:14.492 CET [14906] DEBUG: max_safe_fds = 984,
>> usable_fds = 1000, already_open = 6
>
> That's pretty much the same thing we see on most other platforms.
> Plus your configure log shows that SysV semaphores were selected,
> and those don't eat FDs.
Yes, it looks "normal".
> Apparently, in the environment of that TAP test, the server has more
> open FDs at this point than it does when running "normally". I have
> no idea what the additional FDs might be.
Well it's running under cron if that makes a difference and what is the
TAP-test using? perl?
/Mikael
