Mongodb not working on Ubuntu 16.04

Question

I installed mongodb following this tutorial here, no errors during the installation but when I try to start the mongod server using this command sudo systemctl start m

Answer 1

Recently i have solved the same issue. I was unable to find the solution on googled, but i get come clues to, how get figure it out. In my case this issue was related to mongodb-27017.sock file.

Failed to unlink socket file /tmp/mongodb-27017.sock errno:1 Operation not permitted

So i have changed the permission of /tmp/mongodb-27017.sock file to default mongodb user.

sudo chown mongodb /tmp/mongodb-27017.sock
sudo chgrp mongodb /tmp/mongodb-27017.sock

After this sudo systemctl status mongodb working fine and mongodb is started.