Issue

• What is the meaning of "Requested transaction contains an unfixable cyclic ordering dependency"?
• Why do I see the following in logs when trying to start a service with systemd?

Dec 18 10:27:42 rhel7u2a systemd: Found ordering cycle on sleeper2.service/start
Dec 18 10:27:42 rhel7u2a systemd: Found dependency on sleeper1.service/start
Dec 18 10:27:42 rhel7u2a systemd: Found dependency on sleeper2.service/start
Dec 18 10:27:42 rhel7u2a systemd: Unable to break cycle
Dec 18 10:27:42 rhel7u2a systemd: Requested transaction contains an unfixable cyclic ordering dependency: Transaction order is cyclic. See system logs for details.
Dec 18 10:28:08 rhel7u2a systemd: Starting Cleanup of Temporary Directories...
Dec 18 10:28:08 rhel7u2a systemd: Started Cleanup of Temporary Directories.