Zero-Downtime Rebalancing and Data Migration of a Mature Multi-Shard Platform

Explore a comprehensive conference talk on zero-downtime rebalancing and data migration for mature multi-shard platforms. Delve into the challenges of application-level sharding in multi-tenant architectures and discover advanced solutions developed over years of experience. Learn how Shopify utilizes the MySQL binlog event stream to balance hundreds of shards, isolate heavy tenants, and transfer massive datasets across environments without downtime. Gain insights into building a robust sharding toolkit that goes beyond initial implementation, enabling seamless scaling and maintenance of large-scale distributed systems.