Flink & Metered Billing - a reprocessing story

Join us to explore how a metered billing system was built and utilized Apache Flink to achieve accurate numbers. We’ll cover session window aggregation, ordering, idempotency, late enrichment, metered billing, reconciliation, watermark alignment, and data accuracy.

Learn how we iteratively modified and expanded our business logic, idempotently reprocessing over 500M events more than ten times to ensure precision for our customers.

We’ll dive into the architectural decisions, operational strategies, and challenges faced, providing valuable insights into building robust, real-time data processing systems with Flink.