[slurm-users] Slurm cancelling jobs even when dependencies are successful

Roger Moye rmoye at quantlab.com
Tue Oct 29 20:55:39 UTC 2019

We have a situation where Slurm is cancelling jobs due to the error "job dependency can't be satisfied".     However, all of the job dependencies are completing successfully.   Sacct shows that they are successful and scontrol shows they all have exit codes of 0.

Subsequently, once we have determined that the dependencies were successful we requeued the cancelled job.  Again it was cancelled:
JobState=CANCELLED Reason=Dependency Dependency=afterok:7438267_*

This seems to be a random event because we have submitted jobs of this type often and only some of them get cancelled.  Shortly after this happened today I tried to recreate the problem by submitting a job array and then submitting a second job that was dependent on the job array.   The dependent job was successful.

Has anyone seen this behavior before or can anyone shed light on this?

We are using Slurm 18.08.4.

Thanks in advance!

[cid:image001.png at 01D22319.C7D5D540]
Roger Moye
HPC Engineer
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713.898.0021 Mobile

3 Greenway Plaza
Suite 200
Houston, Texas 77046


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