Mongodb--Make at least 3379MB available in /data/db/journal or use ...

Error Code:

[root@cloud bin]# ./mongod
2016-07-22T14:34:05.781+0800 I JOURNAL  [initandlisten] journal dir=/data/db/journal
2016-07-22T14:34:05.782+0800 I JOURNAL  [initandlisten] recover : no journal files present, no recovery needed
2016-07-22T14:34:05.782+0800 I JOURNAL  [initandlisten] 
2016-07-22T14:34:05.782+0800 E JOURNAL  [initandlisten] Insufficient free space for journal files
2016-07-22T14:34:05.782+0800 I JOURNAL  [initandlisten] Please make at least 3379MB available in /data/db/journal or use --smallfiles
2016-07-22T14:34:05.782+0800 I JOURNAL  [initandlisten] 
2016-07-22T14:34:05.782+0800 I STORAGE  [initandlisten] exception in initAndListen: 15926 Insufficient free space for journals, terminating
2016-07-22T14:34:05.782+0800 I CONTROL  [initandlisten] now exiting
2016-07-22T14:34:05.783+0800 I NETWORK  [initandlisten] shutdown: going to close listening sockets...
2016-07-22T14:34:05.783+0800 I NETWORK  [initandlisten] removing socket file: /tmp/mongodb-27017.sock
2016-07-22T14:34:05.783+0800 I NETWORK  [initandlisten] shutdown: going to flush diaglog...
2016-07-22T14:34:05.783+0800 I NETWORK  [initandlisten] shutdown: going to close sockets...
2016-07-22T14:34:05.783+0800 I STORAGE  [initandlisten] shutdown: waiting for fs preallocator...
2016-07-22T14:34:05.783+0800 I STORAGE  [initandlisten] shutdown: final commit...
2016-07-22T14:34:05.783+0800 I STORAGE  [initandlisten] shutdown: closing all files...
2016-07-22T14:34:05.784+0800 I STORAGE  [initandlisten] closeAllFiles() finished
2016-07-22T14:34:05.784+0800 I CONTROL  [initandlisten] dbexit:  rc: 100