sudo service mongodb status
● mongodb.service - An object/document-oriented database
Loaded: loaded (/lib/systemd/system/mongodb.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Fri 2017-07-21 09:20:42 UTC; 1min 15s ago
Docs: man:mongod(1)
Process: 2105 ExecStart=/usr/bin/mongod --config /etc/mongodb.conf (code=exited, status=100)
Main PID: 2105 (code=exited, status=100)
Jul 21 09:20:42 ip-10-0-0-12 systemd[1]: Started An object/document-oriented database.
Jul 21 09:20:42 ip-10-0-0-12 systemd[1]: mongodb.service: Main process exited, code=exited, status=100/n/a
Jul 21 09:20:42 ip-10-0-0-12 systemd[1]: mongodb.service: Unit entered failed state.
Jul 21 09:20:42 ip-10-0-0-12 systemd[1]: mongodb.service: Failed with result 'exit-code'.