[slurm-users] What's the best way to suppress core dump files from jobs?

[Ole Holm Nielsen]

Hi Michael,

Thanks for your friendly advice!  I keep forgetting about Systemd 
details, and your suggestions are really detailed and useful for others! 
  Do you mind if I add your advice to my Slurm Wiki page?

/Ole

On 21-03-2018 16:29, Michael Jennings wrote:
> On Wednesday, 21 March 2018, at 12:08:00 (+0100),
> Ole Holm Nielsen wrote:
> 
>> One working solution is to modify the slurmd Systemd service file
>> /usr/lib/systemd/system/slurmd.service to add a line:
>>    LimitCORE=0
> 
> This is a bit off-topic, but I see this a lot, so I thought I'd
> provide a friendly warning.
> 
> The "right" systemd way to do this is either to put a new unit file in
> /etc/systemd/system/ which will completely override the one in
> /usr/lib/systemd/system/, *OR* you can create
> /etc/systemd/system/slurmd.service.d/core_limit.conf and put ONLY the
> following in it:
>    [Service]
>    LimitCORE=0
> 
> This will *supplement* the SchedMD unit file rather than causing you
> to have to maintain a patched/modified version until the end of
> time. :-)
> 
> Opinions on systemd are varied and often rather passionate, but one
> thing they did get right (IMHO) is making it easier for distribution
> providers, software packagers, and system engineers to all have a say
> in how things are configured without stepping all over each other's
> toes!  ;-)