For what its worth, I had a similar issue which presented itself with;
Jul 15 00:28:53 sh-prox02 systemd[1]: ceph-osd@2.service: Scheduled restart job, restart counter is at 6.
Jul 15 00:28:53 sh-prox02 systemd[1]: Stopped Ceph object storage daemon osd.2.
Jul 15 00:28:53 sh-prox02 systemd[1]...