MongoDB - Permission denied for socket: /tmp/mongodb-27017.sock

Question

I had an unclean shutdown of MongoDB on Ubuntu 10.04 LTS. Now when I login as root and run Mongodb via service mongodb start, I get below error-

Mon Dec 12          


        

Answer 1

In the Versions before 3.0 the socket was created with 777 permissions by default. Most the most correct way set permissions to mongod socket is set value in mongodb.conf. For example:

sudo vim /usr/local/etc/mongodb.conf

and insert line:

filePermissions = 0777 

to it.

In case if you will try directly change permissions to /tmp/mongodb-27017.sock with chown and chmod you can have a chance set it temporary. And have a old permissions after mongod service restart or server reboot.