我在启动mongo时遇到了一些麻烦。我在远程机器上使用它，我通过SSH连接到哪里。远程机器是我做所有事情的地方（在我自己的机器上什么也没做）。我应该将bind_ip从127.0.0.1更改为远程计算机的IP地址吗？但无论我是否按原样保留IP或将其更改为我的远程计算机的IP，我都会收到以下相同的错误消息：
melissa@simba:~$ mongo --version
MongoDB shell version: 2.6.11
melissa@simba:~$ sudo service mongod start
mongod start/running, process 10623
melissa@simba:~$ mongo
MongoDB shell version: 2.6.11
connecting to: test
2015-09-24T19:27:55.279+0000 warning: Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused
2015-09-24T19:27:55.280+0000 Error: couldn't connect to server 127.0.0.1:27017 (127.0.0.1), connection attempt failed at src/mongo/shell/mongo.js:146
exception: connect failed
我的远程计算机是：Ubuntu 11.10（GNU / Linux 2.6.35.4-rscloud x86_64），其中用户melissa是sudoer。
这是我在开始mongod &
melissa@simba:~$ mongod
mongod --help for help and startup options
2015-09-24T19:40:20.706+0000 [initandlisten] MongoDB starting : pid=10656 port=27017 dbpath=/data/db 64-bit host=simba
2015-09-24T19:40:20.707+0000 [initandlisten] db version v2.6.11
2015-09-24T19:40:20.707+0000 [initandlisten] git version: d00c1735675c457f75a12d530bee85421f0c5548
2015-09-24T19:40:20.707+0000 [initandlisten] build info: Linux build4.ny.cbi.10gen.cc 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49
2015-09-24T19:40:20.707+0000 [initandlisten] allocator: tcmalloc
2015-09-24T19:40:20.707+0000 [initandlisten] options: {}
2015-09-24T19:40:20.746+0000 [initandlisten] exception in initAndListen: 10309 Unable to create/open lock file: /data/db/mongod.lock errno:13 Permission denied Is a mongod instance already running?, terminating
2015-09-24T19:40:20.746+0000 [initandlisten] dbexit:
2015-09-24T19:40:20.746+0000 [initandlisten] shutdown: going to close listening sockets...
2015-09-24T19:40:20.746+0000 [initandlisten] shutdown: going to flush diaglog...
2015-09-24T19:40:20.746+0000 [initandlisten] shutdown: going to close sockets...
2015-09-24T19:40:20.746+0000 [initandlisten] shutdown: waiting for fs preallocator...
2015-09-24T19:40:20.746+0000 [initandlisten] shutdown: lock for final commit...
2015-09-24T19:40:20.746+0000 [initandlisten] shutdown: final commit...
2015-09-24T19:40:20.746+0000 [initandlisten] shutdown: closing all files...
2015-09-24T19:40:20.746+0000 [initandlisten] closeAllFiles() finished
2015-09-24T19:40:20.747+0000 [initandlisten] shutdown: removing fs lock...
2015-09-24T19:40:20.747+0000 [initandlisten] couldn't remove fs lock errno:9 Bad file descriptor
2015-09-24T19:40:20.747+0000 [initandlisten] dbexit: really exiting now
更多信息：
melissa@simba:~$ ps -edaf | grep mongo
melissa 10748 10555 0 19:45 pts/1 00:00:00 grep --color=auto mongo
melissa@simba:~$ service mongod status
status: Unable to connect to system bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
melissa@simba:~$ sudo service mongod status
mongod stop/waiting
melissa@simba:~$ ps -aux | grep mongo
Warning: bad ps syntax, perhaps a bogus '-'? See http://procps.sf.net/faq.html
melissa 10786 0.0 0.3 8148 904 pts/1 S+ 19:47 0:00 grep --color=auto mongo
melissa@simba:~$ mongod --shutdown
There doesn't seem to be a server running with dbpath: /data/db
然后我尝试根据this更改权限，但收到了新错误：
melissa@simba:~/meeth-app$ sudo chown -R `id -u` /data/db
[sudo] password for melissa:
melissa@simba:~/meeth-app$ mongo
MongoDB shell version: 2.6.11
connecting to: test
2015-09-25T01:57:54.966+0000 warning: Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused
2015-09-25T01:57:54.967+0000 Error: couldn't connect to server 127.0.0.1:27017 (127.0.0.1), connection attempt failed at src/mongo/shell/mongo.js:146
exception: connect failed
melissa@simba:~/meeth-app$ mongod &
[1] 16467
melissa@simba:~/meeth-app$ mongod --help for help and startup options
2015-09-25T01:55:07.366+0000 [initandlisten] MongoDB starting : pid=16467 port=27017 dbpath=/data/db 64-bit host=simba
2015-09-25T01:55:07.366+0000 [initandlisten] db version v2.6.11
2015-09-25T01:55:07.366+0000 [initandlisten] git version: d00c1735675c457f75a12d530bee85421f0c5548
2015-09-25T01:55:07.366+0000 [initandlisten] build info: Linux build4.ny.cbi.10gen.cc 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49
2015-09-25T01:55:07.366+0000 [initandlisten] allocator: tcmalloc
2015-09-25T01:55:07.366+0000 [initandlisten] options: {}
2015-09-25T01:55:07.369+0000 [initandlisten] journal dir=/data/db/journal
2015-09-25T01:55:07.369+0000 [initandlisten] recover : no journal files present, no recovery needed
2015-09-25T01:55:07.370+0000 [initandlisten]
2015-09-25T01:55:07.370+0000 [initandlisten] ERROR: Insufficient free space for journal files
2015-09-25T01:55:07.370+0000 [initandlisten] Please make at least 3379MB available in /data/db/journal or use --smallfiles
2015-09-25T01:55:07.370+0000 [initandlisten]
2015-09-25T01:55:07.370+0000 [initandlisten] exception in initAndListen: 15926 Insufficient free space for journals, terminating
2015-09-25T01:55:07.370+0000 [initandlisten] dbexit:
2015-09-25T01:55:07.370+0000 [initandlisten] shutdown: going to close listening sockets...
2015-09-25T01:55:07.370+0000 [initandlisten] shutdown: going to flush diaglog...
2015-09-25T01:55:07.370+0000 [initandlisten] shutdown: going to close sockets...
2015-09-25T01:55:07.370+0000 [initandlisten] shutdown: waiting for fs preallocator...
2015-09-25T01:55:07.370+0000 [initandlisten] shutdown: lock for final commit...
2015-09-25T01:55:07.370+0000 [initandlisten] shutdown: final commit...
2015-09-25T01:55:07.370+0000 [initandlisten] shutdown: closing all files...
2015-09-25T01:55:07.370+0000 [initandlisten] closeAllFiles() finished
2015-09-25T01:55:07.370+0000 [initandlisten] journalCleanup...
2015-09-25T01:55:07.370+0000 [initandlisten] removeJournalFiles
2015-09-25T01:55:07.371+0000 [initandlisten] shutdown: removing fs lock...
2015-09-25T01:55:07.371+0000 [initandlisten] dbexit: really exiting now
答案 0 :(得分：0)
/ data的权限是错误的。启动无法写入PID文件或db文件。试试
sudo chmod -R mongodb / data
答案 1 :(得分：0)
发生了什么让mongo再次工作。顺便说一句，我在Ubuntu 11.10上。
将/ data的所有者从root更改为mongodb：sudo chown -R mongodb /data。
在/etc/mongod.conf中添加一行以打开小文件：smallfiles = true
请勿运行mongod &，因为它不是从具有正确权限的地方运行，而是sudo service mongod start，您可以使用mongo打开mongo shell。
感谢来自freenode irc #linux的r05c03和oldlaptop的帮助。