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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>Our cluster set up 2 slurm control node and scontrol show config as below:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>> scontrol show config<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>SlurmctldHost[0] = slurm1<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>SlurmctldHost[1] = slurm2<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>StateSaveLocation = /etc/slurm/state<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>Of course we have make sure both node has the some slurm conf and mount the same nfs on StateSaveLocation and can read/write it. (but there system is different, slurm1 is centos7 and slurm2 is centos8)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>When slurm1 control the cluster and slurm2 work in standby mode, the cluster has no problem.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>But when we use “scontrol takeover” on slurm2 to switch the primary role, we find new-submit jobs all stuck in PD state.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>No job will be allocated resource by slurm2, no matter how long we wait. Meanwhile old running jobs can complete without problem, and query command like “sinfo”, “sacct” all work well.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>The pending reason is firstly shown as “priority” in squeue, but after we manually update the priority, it become “none” reason and still stuck in PD state.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>During slurm2 primary period, there is no significant error in slurmctld.log. Only after we restart the slurm1 service to let slurm2 return to standby role, it report lots of error as:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>error: Invalid RPC received MESSAGE_NODE_REGISTRATION_STATUS while in standby mode<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>error: Invalid RPC received REQUEST_COMPLETE_PROLOG while in standby mode<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>error: Invalid RPC received REQUEST_COMPLETE_JOB_ALLOCATION while in standby mode<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>So is there any suggestion to find the reason why slurm2 work abnormally as primary controller?<o:p></o:p></span></p></div></body></html>