🎥 Watch all the latest ScyllaDB Summit talks here: Note: Subtitles are available. Learn why and how Discord’s persistence team recently completed their most ambitious migration yet: moving their massive set of trillions of messages from Cassandra to ScyllaDB. Bo Ingram, Senior Software Engineer at Discord, provides a technical look, including: - Their reasons for moving from Apache Cassandra to ScyllaDB - Their strategy for migrating trillions of messages - How they designed a new storage topology – using a hybrid-RAID1 architecture – for extremely low latency on GCP - The role of their existing Rust messages service, new Rust data service library, and new Rust data migrator in this project - What they’ve achieved so far, lessons learned, and what they’re tackling next