Ticket 4368

Summary:	Wrong #SBATCH directives in jobscript lead to unpredictable behavior.
Product:	Slurm	Reporter:	Chrysovalantis Paschoulas <c.paschoulas>
Component:	Heterogeneous Jobs	Assignee:	Felip Moll <felip.moll>
Status:	RESOLVED FIXED	QA Contact:
Severity:	3 - Medium Impact
Priority:	---	CC:	d.krause
Version:	17.11.x
Hardware:	Linux
OS:	Linux
Site:	Jülich	Slinky Site:	---
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Confidential Site:	---	Coreweave sites:	---
Cray Sites:	---	DS9 clusters:	---
Google sites:	---	HPCnow Sites:	---
HPE Sites:	---	IBM Sites:	---
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Recursion Pharma Sites:	---	SFW Sites:	---
SNIC sites:	---	Tzag Elita Sites:	---
Linux Distro:	---	Machine Name:
CLE Version:		Version Fixed:	17.11
Target Release:	---	DevPrio:	---
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Description Chrysovalantis Paschoulas 2017-11-13 10:56:15 MST

The correct way to specify jobpacks in a jobscript it to use "#SBATCH packjob" in-between #SBATCH directives of different job packs.

But when I tried something wrong, like:
"#SBATCH -N X <options> : -N Y <options>"
then jobs silently didn't do anything (no stdout/err) and they went to COMPLETED state, instead of FAILED state!
And the nodes where the jobs run went offline/drained without any notice (nostdout/err files of messages in stdout/err).

This is not a good handling of such cases.

Comment 4 Felip Moll 2017-11-15 09:01:30 MST

Fix has been applied to Slurm 17.11 branch in commit ca2db47e569a680dc8593822e4f1f8f344c92a1b.

Now, an incorrect syntax in sbatch script causes a fatal error.

~]$ sbatch b4368bad.sh 
sbatch: fatal: b4368bad.sh: line 3: Unexpected `:` in [ : -n 1 -t 01:00:00]

Thanks for reporting that,
Felip M