Scaling Slack - The Good, the Unexpected, and the Road Ahead

QCon San Francisco, the international software conference, returns November 17-21, 2025. Join senior software practitioners from early adopter companies as they share real-world insights and actionable advice to help you adopt the right technologies and practices. Gain exposure to innovative approaches and fresh ideas in software development and engineering, designed to inspire and challenge you. Don’t miss this chance to deepen your knowledge, sharpen your skills, and stay ahead in the ever-evolving world of technology. Register now: https://bit.ly/3BYzfbe ------------------------------------------------------------------------------------------------------------------------------------------ Video with transcript included: http://bit.ly/2J3laLP Mike Demmer talks about the major changes that Slack has made to the service architecture to meet the needs for larger and larger enterprise customers. Demmer presents 3 of these changes: decomposition of the real-time message service, client-side lazy loading via edge caching, and scaling the primary data storage tier with fine-grained horizontal sharding using Vitess. This presentation was recorded at QCon San Francisco 2018: https://bit.ly/2uYyHLb #Slack #Performance #Scalability #InfoQ #QConSanFrancisco