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