You are right. The critical part I was missing is that chown does not work without sudo.
I assume this can be fixed by modifying the configuration so "SlurmdUser=root", but does this imply that anything run with `srun` will be actually executed by root? This seems dangerous. Thanks a lot. On Mon, 8 Jul 2019 at 17:28, Jeffrey Frey <f...@udel.edu> wrote: > Does user "slurm" have the capability of reowning files/directories to an > arbitrary uid/gid? Probably not -- that's something "root" can do, though. > > > > > > On Jul 8, 2019, at 12:01 PM, Daniel Torregrosa < > daniel.torregr...@insight-centre.org> wrote: > > > > Hi all, > > > > I am currently testing slurm (slurm-wlm 17.11.2 from a newly installed > and updated Ubuntu server LTS). I managed to make it work on a very simple > 1 master node and 2 compute nodes configuration. All three nodes have the > same users (namely root, slurm and test), with slurm running both slurmctld > and slurmd on the corresponding node (i.e. SlurmUser=slurm and > SlurmdUser=slurm), and test as the only loggable user. > > > > Commands such as `salloc` and `srun` work perfectly, but `sbatch` fails. > In `squeue`, I get "(launch failed requeued help)". When I check the > corresponding compute node log, I get "error: > chown(/var/spool/slurmd/d/jobxxxxx): Operation not permitted". The previous > line has "Launching batch job xx for UID 1000" (test) or 0 (root) if > running `sudo sbatch`. > > > > Batch file looks like > > > > #! /bin/bash > > #SBATCH -J myjob > > > > hostname > > > > I suspect that the problem is that `srun` and `salloc` are being run by > SlurmdUser (slurm, i.e. `srun whoami` returns slurm), who owns > /var/spool/slurmd, but sbatch tasks are being run by the user issuing the > command (test). > > > > Should I chmod /var/spool/slurmd so any user can write there, or do I > have a configuration problem? I feel like I am missing something critical > here. > > > > Thanks a lot. > > Daniel > > > :::::::::::::::::::::::::::::::::::::::::::::::::::::: > Jeffrey T. Frey, Ph.D. > Systems Programmer V / HPC Management > Network & Systems Services / College of Engineering > University of Delaware, Newark DE 19716 > Office: (302) 831-6034 Mobile: (302) 419-4976 > :::::::::::::::::::::::::::::::::::::::::::::::::::::: > > > > >
