如何在Ubuntu上运行mongo shell

Question

我刚刚在Ubuntu 15.10上安装了MongoDB版本3.2.4,我想运行mongo shell.所有文档都建议先执行命令cd <mongodb installation dir>

我的问题是在哪里mongodb installation dir？我怎么能找到它？

显然它可能是错的mongod. Could not find /usr/bin/mongod 详情如下.

root@levilinode:/usr/bin# service mongod status
? mongod.service - LSB: An object/document-oriented database
   Loaded: loaded (/etc/init.d/mongod)
   Active: active (exited) since Tue 2016-04-12 14:22:45 EDT; 1h 37min ago
     Docs: man:systemd-sysv-generator(8)

Apr 12 14:22:45 levilinode systemd[1]: Starting LSB: An object/document-oriented database...
Apr 12 14:22:45 levilinode mongod[16541]: Could not find /usr/bin/mongod
Apr 12 14:22:45 levilinode systemd[1]: Started LSB: An object/document-oriented database.
Apr 12 14:24:02 levilinode systemd[1]: Started LSB: An object/document-oriented database.
Apr 12 14:24:26 levilinode systemd[1]: Started LSB: An object/document-oriented database.
Apr 12 15:56:15 levilinode systemd[1]: Started LSB: An object/document-oriented database.

但是那些文件似乎在那里:

root@levilinode:/usr/bin# ls -la mong*
-rwxr-xr-x 1 root root 19816422 Mar  7 18:32 mongo
-rwxr-xr-x 1 root root 35865168 Mar  7 18:32 mongod
-rwxr-xr-x 1 root root 14661359 Mar  7 18:32 mongodump
-rwxr-xr-x 1 root root 10523458 Mar  7 18:32 mongoexport
-rwxr-xr-x 1 root root 10395740 Mar  7 18:32 mongofiles
-rwxr-xr-x 1 root root 10636848 Mar  7 18:32 mongoimport
-rwxr-xr-x 1 root root 10125973 Mar  7 18:32 mongooplog
-rwxr-xr-x 1 root root 35551461 Mar  7 18:32 mongoperf
-rwxr-xr-x 1 root root 17331345 Mar  7 18:32 mongorestore
-rwxr-xr-x 1 root root 16086077 Mar  7 18:32 mongos
-rwxr-xr-x 1 root root 10353518 Mar  7 18:32 mongostat
-rwxr-xr-x 1 root root 10213613 Mar  7 18:32 mongotop

Answer 1

多种选择:

1. 使用系统的文件参考数据库:

$ sudo updatedb; locate mongo

2. 安装后重新启动shell并尝试:

mongo和mongod命令都在同一个目录中,所以如果安装程序在你的$ PATH中添加了这个目录,这应该告诉你它们在哪里.

$ which mongo
$ which mongod

3. 手动检查/var/lib或/usr/local或/usr/bin(必须是符号链接)
4. 检查守护进程行,它通常会显示路径的提示,因为它显示了配置文件的路径

$ ps -efa | grep mongo

Answer 2

我想我根据这个问题解决了连接问题：

然后我按照命令上方显示的链接所示运行：

sudo rm /var/lib/mongodb/mongod.lock
sudo service mongod restart

现在似乎一切正常。