A colleague found this, and it resolved the issue for me.
https://bugs.schedmd.com/show_bug.cgi?id=14134
The /etc/hosts on the compute nodes did not have this extra line, but
the file on the login/slurmctld node did have it.
I removed the line and now e.g. srun -x11 -N 1 xclock works.
Allan
Yes, 'salloc --x11' followed by 'ssh -X' to the allocated node works.
'hostname' command gives me the short hostname. However /etc/localhost
contains 'localhost' not the short hostname. I will experiement with
that.
These nodes are all running Ubuntu 20.04 LTS by the way.
Allan
Tina Friedrich
I remember having problems in that it worked via SSH - did you check
that (i.e. if you 'ssh -X' to a node it works?) - but not via SLURM.
That seemed to be authorization, and the way the SLURM inbuild method
generated the magic cookies - it couldn't cope with the node hostname
being it's FQDN,
Hi Allan,
I don't remember exactly, and it's just something to check ... I had a
similar problem a long time ago and it was a typo in /etc/hosts or
/etc/resolv.conf (login node?).
Best,
Weijun
On 10/6/2022 3:58 PM, Allan Streib wrote:
[Some people who received this message don't often get
Davide DelVento writes:
> Perhaps just a very trivial question, but it doesn't look you
> mentioned it: does your X-forwarding work from the login node? Maybe
> the X-server on your client is the problem and trying xclock on the
> login node would clarify that
Sorry, yes running xterm, xclock, e
Perhaps just a very trivial question, but it doesn't look you
mentioned it: does your X-forwarding work from the login node? Maybe
the X-server on your client is the problem and trying xclock on the
login node would clarify that
On Wed, Oct 5, 2022 at 12:03 PM Allan Streib wrote:
>
> Hi everyone,
Hi everyone,
I'm trying to get X11 forwarding working on my cluster. I've read some
of the threads and web posts on X11 forwarding and most of the common
issues I'm finding seem to pertain to older versions of Slurm.
I log in from my workstation to the login node with ssh -X. I have x11
apps inst
