José David Baena – Distributed Systems Engineer https://josedavidbaena.com Production notes and source-backed analysis on distributed systems, messaging infrastructure, open-source internals, and model engineering. en-us josedab@gmail.com (José David Baena) josedab@gmail.com (José David Baena) Tue, 08 Sep 2026 00:00:00 GMT https://josedavidbaena.com/blog/kafka-reliability/share-group-boundaries Kafka Share Groups Change Acknowledgement, Not Business Atomicity https://josedavidbaena.com/blog/kafka-reliability/share-group-boundaries Use Kafka 4.3.1 share acquisition, acknowledgement, renewal, isolation, and delivery limits without importing traditional offset-frontier claims. Tue, 08 Sep 2026 00:00:00 GMT josedab@gmail.com (José David Baena) kafkareliabilityconsumersqueues