No configuration in journald.conf was applied to the journald process in Red Hat Enterprise Linux
Issue
- I changed some default configuration in 
/etc/systemd/journald.conflikeSystemMaxUse. - The changed configuration was not applied to the 
systemd-journaldprocess by restartingjournaldservice or rebooting the system. 
Environment
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
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