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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link="#0563C1" vlink="#954F72" style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hi, all:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>We need to detect some problem at job end timepoint, so we write some detection script in slurm epilog, which should drain the node if check is not passed.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I know exit epilog with non-zero code will make slurm automatically drain the node. But in such way, drain reason will all be marked as <b>“Epilog error”</b>. Then our auto-repair program will have trouble to determine how to repair the node.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Another way is call <b>scontrol</b> directly from epilog to drain the node, but from official doc https://slurm.schedmd.com/prolog_epilog.html it wrote:<o:p></o:p></span></p><p class=MsoNormal><i><span lang=EN-US>Prolog and Epilog scripts should be designed to be as short as possible and should not call Slurm commands (e.g. squeue, scontrol, sacctmgr, etc). … Slurm commands in these scripts can potentially lead to performance issues and should not be used.<o:p></o:p></span></i></p><p class=MsoNormal><span lang=EN-US>So what is the best way to drain node from epilog with a self-defined reason, or tell slurm to add more verbose message besides <b>“Epilog error” </b>reason?<o:p></o:p></span></p></div></body></html>