Invidious needs one PostgreSQL database which has the following tables. - `annotations` Caches annotation data if `cache_annotations` is enabled in [`config.yml`](https://github.com/omarroth/invidious/wiki/Configuration) - `channel_videos` Stores truncated video info, used to create user feeds - `channels` Stores UCID and author name - `nonces` Keeps track of tokens issued to prevent CSRF - `users` Stores user info, such as preferences, username, subscriptions - `session_ids` Keeps track of user sessions - `videos` Stores video cache, used to create "top" page The table `videos` grows a lot and needs the most storage. You can clean it up using following commands: ```bash $ sudo -i -u postgres $ psql invidious -c "DELETE FROM nonces * WHERE expire < current_timestamp" $ psql invidious -c "TRUNCATE TABLE videos" $ exit ``` For regular maintenance you should add a cronjob for these commands ```bash @weekly psql invidious -c "DELETE FROM nonces * WHERE expire < current_timestamp" > /dev/null @weekly psql invidious -c "TRUNCATE TABLE videos" > /dev/null ```