xxx@ubuntu:~# systemctl status redis-sentinel.service
● redis-sentinel.service - Redis Sentinel
Loaded: loaded (/etc/systemd/system/redis-sentinel.service; enabled; vendor preset: enabled)
Active: failed (Result: start-limit-hit) since Mon 2019-03-11 02:26:55 PDT; 2h 50min ago
Process: 1080 ExecStop=/usr/bin/redis-cli shutdown (code=exited, status=203/EXEC)
Process: 1077 ExecStart=/usr/bin/redis-server /etc/redis/sentinel.conf --sentinel (code=exited, status=203/EXEC)
Main PID: 1077 (code=exited, status=203/EXEC)
Mar 11 02:26:55 ubuntu systemd[1]: redis-sentinel.service: Control process exited, code=exited status=203
Mar 11 02:26:55 ubuntu systemd[1]: redis-sentinel.service: Unit entered failed state.
Mar 11 02:26:55 ubuntu systemd[1]: redis-sentinel.service: Failed with result 'exit-code'.
Mar 11 02:26:55 ubuntu systemd[1]: redis-sentinel.service: Service hold-off time over, scheduling restart.
Mar 11 02:26:55 ubuntu systemd[1]: Stopped Redis Sentinel.
Mar 11 02:26:55 ubuntu systemd[1]: redis-sentinel.service: Start request repeated too quickly.
Mar 11 02:26:55 ubuntu systemd[1]: Failed to start Redis Sentinel.
Mar 11 02:26:55 ubuntu systemd[1]: redis-sentinel.service: Unit entered failed state.
Mar 11 02:26:55 ubuntu systemd[1]: redis-sentinel.service: Failed with result 'start-limit-hit'.