I apologize for replying to my own post, but I have some additional information. I am seeing the following in syslog:
Feb 13 00:07:55 stthomas systemd[1]: zentyal.loggerd.service: Main process exited, code=exited, status=9/n/a
Feb 13 00:07:55 stthomas systemd[1]: zentyal.loggerd.service: Failed with result 'exit-code'.
Feb 13 00:07:55 stthomas systemd[1]: zentyal.loggerd.service: Service hold-off time over, scheduling restart.
Feb 13 00:07:55 stthomas systemd[1]: zentyal.loggerd.service: Scheduled restart job, restart counter is at 2.
Feb 13 19:50:39 stthomas systemd[1]: zentyal.loggerd.service: Main process exited, code=exited, status=9/n/a
Feb 13 19:50:39 stthomas systemd[1]: zentyal.loggerd.service: Failed with result 'exit-code'.
Feb 13 19:50:39 stthomas systemd[1]: zentyal.loggerd.service: Service hold-off time over, scheduling restart.
Feb 13 19:50:39 stthomas systemd[1]: zentyal.loggerd.service: Scheduled restart job, restart counter is at 1.
Is there a conf file for 'loggerd'? is anyone else having this issue?