CTDB unable to start with "Unable to set schedule to SCHED_FIFO (Operation not permitted)"
Issue
CTDB unable to start with "Unable to set schedule to SCHED_FIFO (Operation not permitted)" in /var/log/log.ctdb
Also
# chrt --fifo 50 free
chrt: failed to set pid 0's policy: Operation not permitted
Environment
glusterfs 3.*
RHEL 7.5
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