Bug 8712 - Configless slurmd does not work with pam_slurm_adopt
Summary: Configless slurmd does not work with pam_slurm_adopt
Status: RESOLVED FIXED
Alias: None
Product: Slurm
Classification: Unclassified
Component: Configuration (show other bugs)
Version: 20.02.2
Hardware: Linux Linux
: --- 6 - No support contract
Assignee: Jacob Jenson
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Reported: 2020-03-20 06:46 MDT by Trey Dockendorf
Modified: 2020-05-13 07:40 MDT (History)
4 users (show)

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Linux Distro: CentOS
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Version Fixed: v20.02.2
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Description Trey Dockendorf 2020-03-20 06:46:11 MDT 
I have setup configless for slurmd but it appears like pam_slurm_adopt still expects to read /etc/slurm/slurm.conf.

Mar 20 08:40:48 pitzer-slurmd01-test pam_slurm_adopt[49090]: error: s_p_parse_file: unable to status file /etc/slurm/slurm.conf: No such file or directory, retrying in 1sec up to 60sec

If I create a symlink from /run/slurm/conf/slurm.conf to /etc/slurm/slurm.conf then the PAM module works just fine.
Comment 1 Jake Grimmett 2020-05-05 04:58:44 MDT 
Thanks for the tip.

the symlink works, however when you restart slurmd it sees /etc/slurm/slurm.conf and so doesn't update /var/spool/slurmd/conf-cache this results in a stale config when any changes are made to slurm.conf.

The temporarily fix is:
systemctl stop slurmd && rm -f /var/spool/slurmd/conf-cache/* && systemctl start slurmd

Perhaps this could be added to /usr/lib/systemd/system/slurmd.service ?
Comment 2 Jake Grimmett 2020-05-13 07:39:36 MDT 
This bug was fixed in slurm v20.02.2

Changes in Slurm 20.02.2
(SNIP)
>  -- pam_slurm_adopt - explicitly call slurm_conf_init().

:)