Flipkart's Async Bus Migration - Real-time Switch from Kafka to Pulsar

Learn about Flipkart's large-scale migration from Kafka to Pulsar in this conference talk from Pulsar Virtual Summit Europe 2024. Discover how Flipkart's managed RESTBus system, Varadhi, underwent a major transformation while handling billions of daily messages across 350 brokers, 3,000 topics, and 9,000 subscriptions. Explore the strategic rationale behind Varadhi's development, its role in facilitating asynchronous communication between microservices, and the critical decision-making process that led to choosing Pulsar as the new message broker. Gain valuable insights into executing a zero-downtime live migration at scale, understanding the technical challenges encountered, and learning about the innovative solutions implemented to ensure successful transition. Presented by Anil Gowda from Flipkart, examine real-world strategies for managing large-scale message broker migrations while maintaining system reliability and performance.