Thanks for the reply, Luke. I also found that with Bright they have a file called /etc/security/pam_bright.d/pam_whitelist.conf that can be used to allow access.
On Thu, May 9, 2024 at 5:10 AM Luke Sudbery l.r.sudbery@bham.ac.uk wrote:
Draining a node will not stop someone logging on via pam_slurm_adopt.
If they have a running job, and can log on when the node is not draining, then they can log on when it is draining.
If they don’t have a running job, they can’t log on whether it is draining or not.
If you want people to be able to log on when they don’t have a job running, you could put them in a group which is given access in access.conf and PAM, as explained here: https://slurm.schedmd.com/pam_slurm_adopt.html#admin_access https://urldefense.proofpoint.com/v2/url?u=https-3A__slurm.schedmd.com_pam-5Fslurm-5Fadopt.html-23admin-5Faccess&d=DwMGaQ&c=aqMfXOEvEJQh2iQMCb7Wy8l0sPnURkcqADc2guUW8IM&r=X0jL9y0sL4r4iU_qVtR3lLNo4tOL1ry_m7-psV3GejY&m=930NtoLMP-HvoNP-dfQ9jhRtE5LJnxRDm9D7MJkOJnZQJRNbHHXjsP41nIQyfBxL&s=4p4zui4pf8xYjAj48y_0dCLnMEudAClm-bNhCYct-ZM&e=
Cheers,
Luke
--
Luke Sudbery
Principal Engineer (HPC and Storage).
Architecture, Infrastructure and Systems
Advanced Research Computing, IT Services
Room 132, Computer Centre G5, Elms Road
*Please note I don’t work on Monday.*
*From:* Robert Kudyba via slurm-users slurm-users@lists.schedmd.com *Sent:* Friday, April 19, 2024 9:17 PM *To:* Slurm User Community List slurm-users@lists.schedmd.com *Subject:* [slurm-users] any way to allow interactive jobs or ssh in Slurm 23.02 when node is draining?
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We use Bright Cluster Manager with SLurm 23.02 on RHEL9. I know about pam_slurm_adopt https://slurm.schedmd.com/pam_slurm_adopt.html https://urldefense.proofpoint.com/v2/url?u=https-3A__slurm.schedmd.com_pam-5Fslurm-5Fadopt.html&d=DwMGaQ&c=aqMfXOEvEJQh2iQMCb7Wy8l0sPnURkcqADc2guUW8IM&r=X0jL9y0sL4r4iU_qVtR3lLNo4tOL1ry_m7-psV3GejY&m=930NtoLMP-HvoNP-dfQ9jhRtE5LJnxRDm9D7MJkOJnZQJRNbHHXjsP41nIQyfBxL&s=Kch4xC6o-kw7TW21LcDVPMjH1a0Zl7TL1l8FiTdvLyI&e= which does not appear to come by default with the Bright 'cm' package of Slurm.
Currently ssh to a node gets:
Login not allowed: no running jobs and no WLM allocations
We have 8 GPUs on a node so when we drain a node, which can have up to a 5 day job, no new jobs can run. And since we have 20+ TB (yes TB) local drives, researchers have their work and files on them to retrieve.
Is there a way to use /etc/security/access.conf to work around this at least temporarily until the reboot and then we can revert?
Thanks!
Rob