[slurm-users] slurmd.service fails to register

Marcus Wagner wagner at itc.rwth-aachen.de
Tue Dec 17 07:35:30 UTC 2019

Hi Dean,

first make sure, the munge.key is really the same on  all systems. Also 
the users must be the same on the systems, as the submission itself is 
done on the controller. Please be sure also, that the systems have the 
same date and time.

After that, restart munge service and then the slurm services.


On 12/16/19 9:58 PM, Dean Schulze wrote:
> I have my controller running (slurmctld and slrumdbd) and my 
> controller and node host can ping each other by name so they resolve 
> via /etc/hosts settings.  When I try to start the slurmd.service it 
> shows that it is active (running), but gives these errors:
> Unable to register: Zero Bytes were transmitted or received
> The controller shows this from slurmctld.service:
>     Munge decode failed: Invalid credential
> I copied the munge.key from controller to node (copying via an NFS 
> shared directory required changing ownership and permissions and then 
> changing them back).
> Apparently the node is communicating with the controller, but munge 
> thinks I have a bad credential.
> Any idea how to troubleshoot this?

Marcus Wagner, Dipl.-Inf.

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