[root@localhost ~]# service redis start
Starting redis (via systemctl): Job for redis.service failed because the control process exited with error code. See "systemctl status redis.service" and "journalctl -xe" for details.
[FAILED]
[root@localhost ~]# systemctl status redis.service
● redis.service - LSB: start and stop Redis server
Loaded: loaded (/etc/rc.d/init.d/redis; bad; vendor preset: disabled)
Active: failed (Result: exit-code) since Mon 2019-09-09 09:17:28 CST; 5s ago
Docs: man:systemd-sysv-generator(8)
Process: 3027 ExecStart=/etc/rc.d/init.d/redis start (code=exited, status=6)
Sep 09 09:17:28 localhost.localdomain systemd[1]: Starting LSB: start and stop Redis server...
Sep 09 09:17:28 localhost.localdomain systemd[1]: redis.service: control process exited, code=exited status=6
Sep 09 09:17:28 localhost.localdomain systemd[1]: Failed to start LSB: start and stop Redis server.
Sep 09 09:17:28 localhost.localdomain systemd[1]: Unit redis.service entered failed state.
Sep 09 09:17:28 localhost.localdomain systemd[1]: redis.service failed.