[slurm-users] Job limit in slurm.

[Ole Holm Nielsen]

Hi Navin,

I wonder if you have configured the Slurm database and the slurmdbd 
daemon?  I think the limit enforcement requires the use of the database.

What is the output of:

$ scontrol show config | grep AccountingStorageEnforce

See also https://slurm.schedmd.com/accounting.html#limit-enforcement

Limit Enforcement

Various limits and limit enforcement are described in the Resource Limits 
web page.

To enable any limit enforcement you must at least have 
AccountingStorageEnforce=limits in your slurm.conf, otherwise, even if you 
have limits set, they will not be enforced. Other options for 
AccountingStorageEnforce and the explanation for each are found on the 
Resource Limits document.

/Ole

On 2/17/20 12:20 PM, navin srivastava wrote:
> Hi ole,
> 
> i am submitting 100 of jobs are i see all jobs starting at the same time 
> and all job is going into the run state.
> if Maxjobs limit is set it should allow only 3 jobs at any point of time.
> 
> Regards
> Navin.
> 
> 
> 
> 
> On Mon, Feb 17, 2020 at 4:48 PM Ole Holm Nielsen 
> <Ole.H.Nielsen at fysik.dtu.dk <mailto:Ole.H.Nielsen at fysik.dtu.dk>> wrote:
> 
>     Hi Navin,
> 
>     Why do you think the limit is not working?  The MaxJobs limits the number
>     of running jobs to 3, but you can still submit as many jobs as you like!
> 
>     See "man sacctmgr" for definitions of the limits MaxJobs as well as
>     MaxSubmitJobs.
> 
>     /Ole
> 
>     On 2/17/20 12:04 PM, navin srivastava wrote:
>      > Hi,
>      >
>      > Thanks for your script.
>      > with this i am able to show the limit what i set. but this limt is
>      > not working.
>      >
>      > MaxJobs =        3, current value = 0
>      >
>      > Regards
>      > Navin.
>      >
>      > On Mon, Feb 17, 2020 at 4:13 PM Ole Holm Nielsen
>      > <Ole.H.Nielsen at fysik.dtu.dk <mailto:Ole.H.Nielsen at fysik.dtu.dk>
>     <mailto:Ole.H.Nielsen at fysik.dtu.dk
>     <mailto:Ole.H.Nielsen at fysik.dtu.dk>>> wrote:
>      >
>      >     On 2/17/20 11:16 AM, navin srivastava wrote:
>      >      > i have an issue with the slurm job limit. i applied the Maxjobs
>      >     limit on
>      >      > user using
>      >      >
>      >      >   sacctmgr modify user navin1 set maxjobs=3
>      >      >
>      >      > but still i see this is not getting applied. i am still bale
>     to submit
>      >      > more jobs.
>      >      > Slurm version is 17.11.x
>      >      >
>      >      > Let me know what setting is required to implement this.
>      >
>      >     The tool "showuserlimits" tells you all user limits in the Slurm
>      >     database.
>      >        You can download it from
>      >
>     https://github.com/OleHolmNielsen/Slurm_tools/tree/master/showuserlimits
>      >     and give it a try:
>      >
>      >     $ showuserlimits -u navin1
>