Kafka Exactly Once Semantics: Idempotent Producers and Transactions
How Kafka exactly once semantics works: idempotent producers, transactions, zombie fencing, read_committed consumers, and where the guarantee stops.
13 min read
Tag
transactions
Spring Boot Transactional Pitfalls: Proxies, Propagation, Rollback
Learn why @Transactional fails silently: proxy self-invocation, default rollback rules, propagation semantics, lazy loading, and how to verify boundaries.
14 min read