The article explains RocketMQ's ordered messaging model, detailing why disorder occurs during production and consumption, and describing the three-phase mechanism—using MessageQueueSelector, sequential storage, and single‑threaded ordered consumption—to ensure that messages are processed in the exact order they were produced.
A deep dive into a massive RocketMQ message backlog reveals that identical clientIds generated in Docker host‑mode cause load‑balancing errors, and the article explains the root cause, code analysis, and a practical fix by customizing the clientId.
This article explains RocketMQ's master‑slave replication mechanism, comparing synchronous and asynchronous modes, detailing metadata and message data copying processes, and showing how synchronous guarantees are implemented using CompletableFuture to ensure high availability.
This article provides a comprehensive overview of the AMQP 0‑9‑1 protocol, explaining its core components—publishers, exchanges, queues, and consumers—detailing each exchange type, queue properties, message acknowledgment, routing rules, and practical usage considerations for reliable backend messaging.
