[slurm-users] RES: Change something in user's script using job_submit.lua plugin

[Paulo Jose Braga Estrela]

Hi Ole,

Yes, the script is running and changing other fields like comment, partition, account is working fine. The only problem seems to be the script field of job_rec. I'm using Slurm 20.11.9 from EPEL repository for RHEL 8. Thank you for sharing your Wiki. I've accessed it before. It's really useful for HPC engineers.

Best regards,


PÚBLICA
-----Mensagem original-----
De: slurm-users <slurm-users-bounces at lists.schedmd.com> Em nome de Ole Holm Nielsen
Enviada em: sexta-feira, 27 de outubro de 2023 03:31
Para: slurm-users at lists.schedmd.com
Assunto: Re: [slurm-users] Change something in user's script using job_submit.lua plugin

Hi Paulo,

Which Slurm version do you have, and did you set this in slurm.conf:
JobSubmitPlugins=lua ?

Perhaps you may find some useful information in this Wiki page:
https://wiki.fysik.dtu.dk/Niflheim_system/Slurm_configuration/#job-submit-plugins

/Ole


On 26-10-2023 19:07, Paulo Jose Braga Estrela wrote:
> Is it possible to change something in user’s sbatch script by using a
> job_submit plugin? To be more specific, using Lua job_submit plugin.
>
> I’m trying to do the following in job_submit.lua when a user changes
> job’s partition to “cloud” partition, but the script got executed
> without modification.
>
> function slurm_job_modify(job_desc, job_rec, part_list, modify_uid)
>
>          if job_desc.partition == "cloud" then
>
>                  slurm.log_info("slurm_job_modify: Bursting job %u
> from uid %u to the cloud...",job_rec.job_id,modify_uid)
>
>                  script = job_rec.script
>
>                  slurm.log_info("Script BEFORE change: %s",script)
>
>                  -- changing user command to another command
>
>                  script = string.gsub(script,"local command","cloud
> command")
>
>                  slurm.log_info("Script AFTER change %s",script)
>
>                  -- The script variable is really changed
>
>                  job_rec.script = script
>
>                  slurm.log_info("Job RECORD SCRIPT %s",job_rec.script)
>
>                  -- The job record also got changed, but the EXECUTED
> script isn’t changed at all. It runs without modification.
>
>          end
>
>          return slurm.SUCCESS
>
> end
>
> *PAULO ESTRELA*


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