[slurm-users] SLURM: reconfig

Mark Dixon mark.c.dixon at durham.ac.uk
Thu May 5 14:08:29 UTC 2022

On Thu, 5 May 2022, Ole Holm Nielsen wrote:
> That is correct.  Just do "scontrol reconfig" on the slurmctld server.  If
> all your slurmd's are truly running Configless[1], they will pick up the
> new config and reconfigure without restarting.
> Details are summarized in
> https://wiki.fysik.dtu.dk/niflheim/Slurm_configuration#reconfiguration-of-slurm-conf.
> Beware that you can't add or remove nodes without restarting.  Also,
> changing certain slurm.conf parameters require restarting.


Given that the normal recommendation for adding/removing nodes safely is 

* stop slurmctld
* edit slurm.conf etc.
* restart the slurmd nodes to pick up new slurm.conf
* start slurmctld

I'm confused how this is supposed to be achieved in a configless setting, 
as slurmctld isn't running to distribute the updated files to slurmd.



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