Re: stress test for parallel workers

Andrew Dunstan <andrew(dot)dunstan(at)2ndquadrant(dot)com> writes:
> On 10/11/19 11:45 AM, Tom Lane wrote:
>> FWIW, I'm not excited about that as a permanent solution. It requires
>> root privilege, and it affects the whole machine not only the buildfarm,
>> and making it persist across reboots is even more invasive.

> OK, but I'm not keen to have to tussle with coredumpctl. Right now our
> logic says: for every core file in the data directory try to get a
> backtrace. Use of systemd-coredump means that gets blown out of the
> water, and we no longer even have a simple test to see if our program
> caused a core dump.

I haven't played that much with this software, but it seems you can
do "coredumpctl list <path-to-executable>" to find out what it has
for a particular executable. You would likely need a time-based
filter too (to avoid regurgitating previous runs' failures),
but that seems do-able.

regards, tom lane