redis sentinel怎么跑守护进程的？
直接在前台显示了.
redis-server可以通过修改配置文件来使用守护进程，以及指定日志目录，但
sentinel启动只能在前台跑。。。

怎样修改配置也让sentinel跑守护进程

[root@redis_01 redis]# redis-server /etc/redis/sentinel.conf --sentinel
7980:X 23 Nov 18:02:41.348 * Increased maximum number of open files to 10032 (it was originally set to 1024).
                _._                                                  
           _.-``__ ''-._                                             
      _.-``    `.  `_.  ''-._           Redis 3.0.5 (00000000/0) 64 bit
  .-`` .-".  "\/    _.,_ ''-._                                   
 (    '      ,       .-`  | `,    )     Running in sentinel mode
 |`-._`-...-` __...-.``-._|'` _.-'|     Port: 26379
 |    `-._   `._    /     _.-'    |     PID: 7980
  `-._    `-._  `-./  _.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |           http://redis.io        
  `-._    `-._`-.__.-'_.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |                                  
  `-._    `-._`-.__.-'_.-'    _.-'                                   
      `-._    `-.__.-'    _.-'                                       
          `-._        _.-'                                           
              `-.__.-'                                               

7980:X 23 Nov 18:02:41.355 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
7980:X 23 Nov 18:02:41.355 # Sentinel runid is 43de323d55627d896b2caf1da2e305f0eb59dcee
7980:X 23 Nov 18:02:41.356 # +monitor master mymaster 127.0.0.1 6379 quorum 1
^C7980:signal-handler (1448273325) Received SIGINT scheduling shutdown...
7980:X 23 Nov 18:08:45.618 # User requested shutdown...
7980:X 23 Nov 18:08:45.618 # Sentinel is now ready to exit, bye bye...