DjangoCon Europe 2016 - Best Practices for Scaling Django

Speaker: Anton Pirker is a Django software engineer.

Normal site: Nginx -> Gunicorn -> Postgres, but the site slows down with increased users.

Debug

1. DjangoToolbar
   • reduce queries
2. Monitor
   • move database to separate server
3. Memcached
   • doesn't increase speed (doesn't work, timestamp debugging)
   • due to cookies
   • don't delete cookies
4. Development machines to get cookies and caching running
5. OperationalErrors
   • maximum connections to postgres
   • enter pgbouncer to re-use connections
6. Long communication
   • async workers: celery + redis