There should be a CPU recommendation here. We hit a performance issue from RHOSP resubmitting concurrently ~100 certficiates ... we had weird errors due to the fact that the IDM had only 4 cores and 4 processes configured in /etc/httpd/conf.d/ipa.conf . Reported by: rhn-support-dhill https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/tuning_performance_in_identity_management/hardware-recomendations_tuning-performance-in-idm#annotations:d52fa604-6931-4145-9675-4902bc93f14c