[slurm-users] SLURM 20.11.0 no x11 forwarding.

[Tina Friedrich]

No idea if I replied this to this particular thread already (if I have 
sorry for the duplicate).

I had issues getting X forwarding to work with SLURM at the start. 
Worked via SSH; no authentication / xauth problems when doing via SLURM.

Turned out to be caused by the nodes having their hostname set to their 
'long' hostname (i.e. including domain) - I think that might be Red Hat 
default? I 'fixed' it by changing things so all things cluster (i.e. all 
things that have SLURM installed) have their hostname set to the short 
hostname.

Tina

On 03/05/2021 17:53, Prentice Bisbal wrote:
> On 4/23/21 1:11 PM, Luis R. Torres wrote:
>> I believe that was the case, we compiled it with x11 support, however, 
>> further debugging suggests that there's an issue writing to the 
>> .Xauthority file when using forwarding through srun.
> 
> If you're getting an .Xauthority error, then X11 support was definitely 
> compiled into Slurm. The most common cause of .Xauthority issues is the 
> user's home directory hitting their quota limit. Could that be the case 
> here?
> 
> -- 
> Prentice
> 
> 

-- 
Tina Friedrich, Advanced Research Computing Snr HPC Systems Administrator

Research Computing and Support Services
IT Services, University of Oxford
http://www.arc.ox.ac.uk http://www.it.ox.ac.uk