Robert, That error is typically due to slurmd/slurmctld version mismatch or different configuration. I would not be surprised if you need to restart slurmd too after changing the SelectType configuration. Also, do not forget this warning from the documentation when it comes to modifying SelectType:
Changing this value can only be done by restarting the slurmctld daemon and will result in the loss of all job information (running and pending) since the job state save format used by each plugin is different. -- Davide Vanzo, PhD Computer Scientist BioHPC – Lyda Hill Dept. of Bioinformatics UT Southwestern Medical Center From: slurm-users <slurm-users-boun...@lists.schedmd.com> On Behalf Of Robert Kudyba Sent: Tuesday, April 7, 2020 3:26 PM To: Slurm User Community List <slurm-users@lists.schedmd.com> Subject: [slurm-users] Header lengths are longer than data received after changing SelectType & GresTypes to use MPS EXTERNAL MAIL Using Slurm 20.02 on CentIOS 7.7 with Bright Cluster. We changed the following options to enable MPS: SelectType=select/cons_tres GresTypes=gpu,mic,mps I restarted slurmctld and ran scontrol reconfigure, however all jobs get the below error: [2020-04-07T15:29:00.741] debug: backfill: no jobs to backfill [2020-04-07T15:29:03.051] Resending TERMINATE_JOB request JobId=3056 Nodelist=node[001-002] [2020-04-07T15:29:03.051] Resending TERMINATE_JOB request JobId=3061 Nodelist=node003 [2020-04-07T15:29:03.051] debug: sched: Running job scheduler [2020-04-07T15:29:03.063] agent/is_node_resp: node:node003 RPC:REQUEST_TERMINATE_JOB : Header lengths are longer than data received [2020-04-07T15:29:03.071] agent/is_node_resp: node:node002 RPC:REQUEST_TERMINATE_JOB : Header lengths are longer than data received [2020-04-07T15:29:03.071] agent/is_node_resp: node:node001 RPC:REQUEST_TERMINATE_JOB : Header lengths are longer than data received Do any other options need changing? What causes these header length errors? CAUTION: This email originated from outside UTSW. Please be cautious of links or attachments, and validate the sender's email address before replying. ________________________________ UT Southwestern Medical Center The future of medicine, today.
