[slurm-users] error: Unable to contact slurm controller (connect failure)

Dear all,

We recently tried to fix our version of slurm in every node of our cluster. After the instalation (slurm 20.11.9) in one of the compute nodes, most of the commads (squeue, sinfo, scontrol show config etc) returns this error:

error: Unable to contact slurm controller (connect failure)

The .log files don't show any errors, we have both debugs values equal to debug5. Also, the rest of the cluster works as usual.

I appreciate any insight on what could be the cause.

Thank you and regards, Daniel