[slurm-users] X11 forwarding issues

[sathish]

Hi Russell Jones,

I believe you are using a slurm version older than 19.05.  X11 forwarding
code has been revamped and it works as expected starting from the 19.05.0
version.


On Mon, Nov 16, 2020 at 10:02 PM Russell Jones <arjones85 at gmail.com> wrote:

> Hi all,
>
> Hoping I can get pointed in the right direction here.
>
> I have X11 forwarding enabled in Slurm, however I cannot seem to get it
> working properly. It works when I test with "ssh -Y" to the compute node
> from the login node, however when I try through Slurm the Display variable
> looks very different, and I get an error. Example below:
>
> [user at cluster-1 ~]$ ssh -Y cluster-cn02
> Last login: Mon Nov 16 10:09:18 2020 from 172.21.150.10
> -bash-4.2$ env | grep -i display
> DISPLAY=172.21.150.102:10.0
> -bash-4.2$ xclock
> Warning: Missing charsets in String to FontSet conversion
> ** Clock pops up and works **
>
> [user at cluster-1 ~]$ srun -p cluster -w cluster-cn02 --x11 --pty bash -l
> bash-4.2$ env | grep -i display
> DISPLAY=localhost:28.0
> bash-4.2$ xclock
> Error: Can't open display: localhost:28.0
>
>
> Any ideas on where to begin looking? I'm not sure why the display variable
> is being set to localhost instead of the login node.
>
> Thanks!
>
>

-- 
Regards.....
Sathish
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