https://josedavidbaena.com Personal website and blog where I document thoughts, ideas, and interests in software engineering, web performance, and open source technologies. en-us josedab@gmail.com (José David Baena) josedab@gmail.com (José David Baena) Sun, 26 Jul 2026 00:00:00 GMT https://josedavidbaena.com/blog/kafka-protocol-internals/01-wire-protocol-compatibility https://josedavidbaena.com/blog/kafka-protocol-internals/01-wire-protocol-compatibility How Kafka frames requests, versions schemas, negotiates broker capabilities, and evolves fields without requiring clients and brokers to upgrade together. Sun, 26 Jul 2026 00:00:00 GMT josedab@gmail.com (José David Baena) kafkadistributed-systemsprotocolscompatibility https://josedavidbaena.com/blog/kafka-protocol-internals/05-replication-durability https://josedavidbaena.com/blog/kafka-protocol-internals/05-replication-durability How ISR, high watermarks, leader epochs, and eligible replicas let Kafka prove which committed history may lead after failure. Sun, 26 Jul 2026 00:00:00 GMT josedab@gmail.com (José David Baena) kafkadistributed-systemsreplicationprotocols https://josedavidbaena.com/blog/debugging-kafka-protocol-11-messages-become-1 https://josedavidbaena.com/blog/debugging-kafka-protocol-11-messages-become-1 How a missing 8-byte write in a Kafka protocol implementation turned 11 messages into 1—with zero errors, zero warnings, and complete silent data loss. Fri, 12 Dec 2025 00:00:00 GMT josedab@gmail.com (José David Baena) kafkadebuggingprotocolsrustdistributed-systemsstreaming