[slurm-users] restart user login ONLY

Durai Arasan arasan.durai at gmail.com
Tue Jul 20 08:35:16 UTC 2021

Hello Brian,

I apologize if this was more a general Linux question. But your
recommendations on managing login nodes were useful.


On Mon, Jul 19, 2021 at 7:27 PM Brian Andrus <toomuchit at gmail.com> wrote:

> Not really a slurm question, but here's my 2 cents:
> FWIW, if they are true zombies (PPID 1 and kill -9 will not work) you
> can only get rid of them with a reboot.
> If they aren't eating much in the line of resources, you will want to
> just ignore them until your next maintenance and then reboot.
> This is one of the reasons I do not architect login nodes to allow
> access to applications or much of anything. Minimal everything.
> If your login node gets quite a bit of traffic, you should look at
> setting up a load-balanced HA configuration for them. Users should not
> have much of anything going on with a login node. Just submit your job
> and do your work on the node. Even if it is an interactive job. Keeps
> your dev/test environment the same as the runtime environment.
> Brian Andrus
> On 7/19/2021 7:09 AM, Durai Arasan wrote:
> > Hello,
> >
> > One of our slurm user's account is hung with uninterruptible
> > processes. These processes cannot be killed. Hence a restart is
> > required. Is it possible to restart the user's login environment
> > alone? I would like to not restart the entire login node.
> >
> > Thanks!
> > Durai
> > Max Planck Institute Tübingen
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