Mongodb 无法在 Ubuntu 15.04 中启动

Question

我已经使用以下命令在 Ubuntu 15.04 中安装了 MongoDB 3.0.6。

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10
echo "deb http://repo.mongodb.org/apt/debian wheezy/mongodb-org/3.0 main" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.0.list
sudo apt-get update
sudo apt-get install -y mongodb-org

最后在安装过程中我得到了这个:

Job for mongod.service failed. See "systemctl status mongod.service" and "journalctl -xe" for details.
invoke-rc.d: initscript mongod, action "start" failed.
dpkg: error processing package mongodb-org-server (--configure):
subprocess installed post-installation script returned error exit status 1
Setting up mongodb-org-mongos (3.0.6) ...
Setting up mongodb-org-tools (3.0.6) ...
dpkg: dependency problems prevent configuration of mongodb-org:
mongodb-org depends on mongodb-org-server; however:
Package mongodb-org-server is not configured yet.

dpkg: error processing package mongodb-org (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
Processing triggers for systemd (219-7ubuntu6) ...
Processing triggers for ureadahead (0.100.0-19) ...
Errors were encountered while processing:
mongodb-org-server
mongodb-org
E: Sub-process /usr/bin/dpkg returned an error code (1)

之后，当我使用以下命令启动服务器时，出现错误并且服务器未启动。

sudo service mongod start

错误是

Job for mongod.service failed. See "systemctl status mongod.service" and "journalctl -xe" for details.

现在当我运行时:

sudo systemctl status mongod.service

我得到以下信息:

mongod.service - LSB: An object/document-oriented database
Loaded: loaded (/etc/init.d/mongod)
Active: failed (Result: exit-code) since Thu 2015-10-08 13:46:08 IST; 22s ago
Docs: man:systemd-sysv-generator(8)
Process: 6604 ExecStart=/etc/init.d/mongod start (code=exited, status=1/FAILURE)

Oct 08 13:46:07 gariya-GA-A55M systemd[1]: Starting LSB: An   object/document-oriented database...
Oct 08 13:46:07 gariya-GA-A55M mongod[6604]: * Starting database mongod
Oct 08 13:46:08 gariya-GA-A55M mongod[6604]: ...fail!
Oct 08 13:46:08 gariya-GA-A55M systemd[1]: mongod.service: control process exited, code=exited status=1
Oct 08 13:46:08 gariya-GA-A55M systemd[1]: Failed to start LSB: An  object/document-oriented database.
Oct 08 13:46:08 gariya-GA-A55M systemd[1]: Unit mongod.service entered failed state.
Oct 08 13:46:08 gariya-GA-A55M systemd[1]: mongod.service failed.

请大家帮忙，我是 Ubuntu 和 MongoDB 的新手，我不知道是什么问题。

Answer 1

有一个日志文件:/var/log/mongodb/mongod.log

在日志中我发现了以下内容:

Failed to unlink socket file /tmp/mongodb-27017.sock errno: Operation not permitted

这很可能来自以前的 MongoDB 版本。我删除了文件(rm -rf/tmp/mongodb-27017.sock)并完成了安装:

apt-get install mongodb-org

现在可以了。 :-)