How to scale a Cassandra cluster with partitions to achieve minimal downtime and the lowest p99 latency? How Discord came up with a smart database architecture for all of that and much more, including sharding, database design, database migration, caching, and much more. ======⚡⚡⚡====== Consider supporting the channel by clicking the "Thanks" button ❤️ 🙌 Become my Patreon and get exclusive perks: https://patreon.com/softdevdiaries 💼 Follow me on LinkedIn and drop me a message if you'd like: https://linkedin.com/in/gusgadirov 💻 Also, let's connect on GitHub: https://github.com/gusgad 📚 Resources: Original article: https://discord.com/blog/how-discord-stores-trillions-of-messages Cassandra data model: https://www.scylladb.com/glossary/cassandra-data-model/ Cassandra's best practices: https://cassandra.apache.org/doc/latest/cassandra/getting_started/production.html Memtables and SSTables: https://docs.datastax.com/en/cassandra-oss/3.0/cassandra/dml/dmlHowDataWritten.html Tokio ecosystem: https://tokio.rs/ RAID: https://www.techtarget.com/searchstorage/definition/RAID p99 latency: https://www.cockroachlabs.com/blog/geo-partition-data-reduce-latency/ And don't forget to subscribe for more videos like this 😊