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MongoDB is a database used to manage and create databases. | MongoDB is a database used to manage and create databases. | ||
= Useful commands = | |||
== Completely uninstall MongoDB == | |||
If you've messed up your MongoDB installation and want to completely uninstall use these commands<ref>https://askubuntu.com/a/1054726</ref>: | |||
# sudo service mongod stop | |||
# sudo apt-get purge mongodb-org* | |||
# sudo rm -r /var/log/mongodb | |||
# sudo rm -r /var/lib/mongodb | |||
= Issues = | = Issues = | ||
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# sudo systemctl start mongod | # sudo systemctl start mongod | ||
# sudo systemctl status mongod | # sudo systemctl status mongod | ||
== MongoDB fails to start immediately after installation == | |||
When running the command ''sudo systemctl start mongod'' an error will appear saying: | |||
Failed to start mongod.service: Unit mongod.service not found. | |||
'''Solution''' | |||
Enter the command: | |||
sudo systemctl enable mongod | |||
This will link the service and allow it to start. | |||
= References = | |||
[[Category:Website Software]] | |||
Latest revision as of 01:17, 19 February 2020
MongoDB is a database used to manage and create databases.
Useful commands[edit]
Completely uninstall MongoDB[edit]
If you've messed up your MongoDB installation and want to completely uninstall use these commands[1]:
- sudo service mongod stop
- sudo apt-get purge mongodb-org*
- sudo rm -r /var/log/mongodb
- sudo rm -r /var/lib/mongodb
Issues[edit]
MongoDB fails to start[edit]
When running the command sudo systemctl status mongod the MongoDB server will fail to start with the message (code=exited, status=62)
Solution
Attempt to repair the MongoDB installation by running the command:
sudo mongod --repair
If this command fails and it shows the error Data directory /data/db not found create the directory using this command:
sudo mkdir -p /data/db
Then restart mongodb:
- sudo systemctl stop mongod
- sudo systemctl start mongod
- sudo systemctl status mongod
MongoDB fails to start immediately after installation[edit]
When running the command sudo systemctl start mongod an error will appear saying:
Failed to start mongod.service: Unit mongod.service not found.
Solution
Enter the command:
sudo systemctl enable mongod
This will link the service and allow it to start.