这是终端显示的错误：
ERROR: child process failed, exited with error number 48
下面这个是日志文件的：
ocessManagement: { fork: true }, storage: { dbPath: "/usr/local/mongo/data" }, systemLog: { destination: "file", path: "/usr/local/mongo/logs.log", verbosity: 5 } }
2018-01-07T03:21:15.336-0800 D NETWORK [initandlisten] fd limit hard:4096 soft:1024 max conn: 819
2018-01-07T03:21:15.371-0800 E NETWORK [initandlisten] listen(): bind() failed Address already in use for socket: 127.0.0.1:27017
2018-01-07T03:21:15.371-0800 E NETWORK [initandlisten] addr already in use
2018-01-07T03:21:15.371-0800 E NETWORK [initandlisten] Failed to set up sockets during startup.
2018-01-07T03:21:15.371-0800 E STORAGE [initandlisten] Failed to set up listener: InternalError: Failed to set up sockets
2018-01-07T03:21:15.371-0800 I NETWORK [initandlisten] shutdown: going to close listening sockets...
2018-01-07T03:21:15.371-0800 I NETWORK [initandlisten] shutdown: going to flush diaglog...
2018-01-07T03:21:15.372-0800 I CONTROL [initandlisten] now exiting
2018-01-07T03:21:15.372-0800 I CONTROL [initandlisten] shutting down with code:48
现在mongodb等不上去了 请问该怎么解决
