Scaling Horizons: Effective Strategies for Wix's Scaling Challenges

This conference talk from GeeCON 2024 explores the horizontal scaling strategies implemented at Wix to handle their massive infrastructure challenges. Discover how Wix manages Kafka consumer scaling, implements dynamic traffic routing for site segments, utilizes DynamoDB sharding, and creates custom routing solutions with ProxySQL for MySQL clusters. Learn the art of selecting effective sharding and routing keys across different systems and gain practical insights on when to choose between managed services and custom solutions for your own infrastructure needs. The presentation provides a comprehensive blueprint for horizontal scaling based on Wix's proven practices, helping you understand various sharding techniques, key considerations for routing rule selection, and how to apply these strategies to achieve both scalability and high availability in your own systems.