MongoDB starting problem in Ubuntu

remove_mongo_lock.md

You started mongodb server, but No matter what. However, when you run sudo status mongodb again, you’ll get mongodb stop/waiting instead of mongodb start/running

Note: This condition is largely due to an unclean shutdown, and results in the creation of a lockfile /var/lib/mongodb/mongod.lock

The fix is a quick two-step process as follows:

Remove the lockfile. Run the repair script. This is accomplished as follows:

$ sudo rm /var/lib/mongodb/mongod.lock
$ sudo -u mongodb mongod -f /etc/mongodb.conf --repair

Now when you run sudo start mongodb. It will report

mongodb start/running, process XXXX