While reviewing the system logs, I saw the entries below. The failure point is the missing </usr/lib/tmpfiles.d/nrpe.conf> file. It was an application I reviewed then removed. Apparently the app has left behind an entry somewhere else that cleanup is using.
Does anyone know where the tmpfile cleanup list is?
2016-11-08T09:50:03.393487-07:00 sma-server3 systemd: Starting Cleanup of Temporary Directories... 2016-11-08T09:50:03.504426-07:00 sma-server3 systemd-tmpfiles: [/usr/lib/tmpfiles.d/nrpe.conf:2] Unknown user 'nagios'. 2016-11-08T09:50:03.630759-07:00 sma-server3 systemd: systemd-tmpfiles-clean.service: main process exited, code=exited, status=1/FAILURE 2016-11-08T09:50:03.631496-07:00 sma-server3 systemd: Failed to start Cleanup of Temporary Directories. 2016-11-08T09:50:03.632034-07:00 sma-server3 systemd: Unit systemd-tmpfiles-clean.service entered failed state.