Hi Brian,
Thanks, SELinux is neither in strict or targeted mode, I'm running SLURM
on Debian Bullseye with SELinux and Apparmor disabled.
Thank you for your suggestion,
Le 08/04/2022 à 21:43, Brian Andrus a écrit :
Check selinux.
Run "getenforce" on the node, if it returns 1, try setting "setenforce 0"
Slurm doesn't play well if selinux is enabled.
Brian Andrus
On 4/8/2022 10:53 AM, Nicolas Greneche wrote:
Hi,
I have an issue with pam_slurm_adopt when I moved from 21.08.5 to
21.08.6. It no longer works.
When I log straight to the node with root account :
Apr 8 19:06:49 magi46 pam_slurm_adopt[20400]: Ignoring root user
Apr 8 19:06:49 magi46 sshd[20400]: Accepted publickey for root from
172.16.0.3 port 50884 ssh2: ...
Apr 8 19:06:49 magi46 sshd[20400]: pam_unix(sshd:session): session
opened for user root(uid=0) by (uid=0)
Everything is OK.
I submit a very simple job, an infinite loop to keep the first compute
node busy :
nicolas.greneche@magi3:~/test-bullseye/infinite$ cat infinite.slurm
#!/bin/bash
#SBATCH --job-name=infinite
#SBATCH --output=%x.%j.out
#SBATCH --error=%x.%j.err
#SBATCH --nodes=1
srun infinite.sh
nicolas.greneche@magi3:~/test-bullseye/infinite$ sbatch infinite.slurm
Submitted batch job 203
nicolas.greneche@magi3:~/test-bullseye/infinite$ squeue
JOBID PARTITION NAME USER ST TIME NODES
NODELIST(REASON)
203 COMPUTE infinite nicolas. R 0:03 1 magi46
I have a job running on the node. When I try to log on the node with
the same regular account :
nicolas.greneche@magi3:~/test-bullseye/infinite$ ssh magi46
Access denied by pam_slurm_adopt: you have no active jobs on this node
Connection closed by 172.16.0.46 port 22
In the auth.log, we can see that the job found (JOBID 203) is found
but the PAM decides that I have no running job on node :
Apr 8 19:11:32 magi46 sshd[20542]: pam_access(sshd:account): access
denied for user `nicolas.greneche' from `172.16.0.3'
Apr 8 19:11:32 magi46 pam_slurm_adopt[20542]: debug2:
_establish_config_source: using config_file=/run/slurm/conf/slurm.conf
(cached)
Apr 8 19:11:32 magi46 pam_slurm_adopt[20542]: debug: slurm_conf_init:
using config_file=/run/slurm/conf/slurm.conf
Apr 8 19:11:32 magi46 pam_slurm_adopt[20542]: debug: Reading
slurm.conf file: /run/slurm/conf/slurm.conf
Apr 8 19:11:32 magi46 pam_slurm_adopt[20542]: debug: Reading
cgroup.conf file /run/slurm/conf/cgroup.conf
Apr 8 19:11:32 magi46 pam_slurm_adopt[20542]: debug4: found
StepId=203.batch
Apr 8 19:11:32 magi46 pam_slurm_adopt[20542]: debug4: found StepId=203.0
Apr 8 19:11:32 magi46 pam_slurm_adopt[20542]: send_user_msg: Access
denied by pam_slurm_adopt: you have no active jobs on this node
Apr 8 19:11:32 magi46 sshd[20542]: fatal: Access denied for user
nicolas.greneche by PAM account configuration [preauth]
I may have miss something, if you have some tips, I'll be delighted.
In appendices, I give you the configuration of sshd pam on compute
nodes and the slurm.conf :
root@magi46:~# cat /etc/pam.d/sshd
@include common-auth
account required pam_nologin.so
account required pam_access.so
account required pam_slurm_adopt.so log_level=debug5
@include common-account
session [success=ok ignore=ignore module_unknown=ignore default=bad]
pam_selinux.so close
session required pam_loginuid.so
session optional pam_keyinit.so force revoke
@include common-session
session optional pam_motd.so motd=/run/motd.dynamic
session optional pam_motd.so noupdate
session optional pam_mail.so standard noenv
session required pam_limits.so
session required pam_env.so
session required pam_env.so user_readenv=1
envfile=/etc/default/locale
session [success=ok ignore=ignore module_unknown=ignore default=bad]
pam_selinux.so open
@include common-password
root@slurmctld:~# cat /etc/slurm/slurm.conf
ClusterName=magi
ControlMachine=slurmctld
SlurmUser=slurm
AuthType=auth/munge
MailProg=/usr/bin/mail
SlurmdDebug=debug
StateSaveLocation=/var/slurm
SlurmdSpoolDir=/var/slurm
SlurmctldPidFile=/var/slurm/slurmctld.pid
SlurmdPidFile=/var/slurm/slurmd.pid
SlurmdLogFile=/var/log/slurm/slurmd.log
SlurmctldLogFile=/var/log/slurm/slurmctld.log
SlurmctldParameters=enable_configless
AccountingStorageHost=slurmctld
JobAcctGatherType=jobacct_gather/linux
AccountingStorageType=accounting_storage/slurmdbd
AccountingStorageEnforce=associations
JobRequeue=0
SlurmdTimeout=600
SelectType=select/cons_tres
SelectTypeParameters=CR_CPU
TmpFS=/scratch
GresTypes=gpu
PriorityType="priority/multifactor"
Nodename=magi3 Boards=1 Sockets=2 CoresPerSocket=10 ThreadsPerCore=2
State=UNKNOWN
Nodename=magi[107] Boards=1 Sockets=2 CoresPerSocket=14
ThreadsPerCore=2 RealMemory=92000 State=UNKNOWN
Nodename=magi[46-53] Boards=1 Sockets=2 CoresPerSocket=10
ThreadsPerCore=2 RealMemory=64000 State=UNKNOWN
PartitionName=MISC-56c Nodes=magi107 Priority=3000 MaxTime=INFINITE
State=UP
PartitionName=COMPUTE Nodes=magi[46-53] Priority=3000 MaxTime=INFINITE
State=UP Default=YES
Thank you,
--
Nicolas Greneche
USPN
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https://www-magi.univ-paris13.fr
