bmod -R "select[osmajor=CENT7] rusage[mem=(200000)]" 3907999
lshosts -l lc-lvn-4519
Try adding -R select[osmajor=CENT7] to see if that resolves your job issue.
To test out your workflow and resolve any Redhat 8 issues, you can use the queue "rhel8" for testing and debugging.
ps -ef | grep <>
Finally, you can force your jobs onto CENTOS7, but as more machines move to RH8, this could force you to be in long queues. This is no longer recommended, but is still available.
export RAVEN_SUBMIT_PLATFORM=CENT7