Apache Kafka: Log Streaming Platform
Topics, partitions and offsets, producers and consumers, consumer groups and rebalancing, replication, and delivery semantics.
Messaging & Caching
Message queues and cache layers that decouple systems and absorb traffic spikes.
All 3 tutorials
RabbitMQ: Flexible Message Routing
Exchanges and bindings, four exchange types, queues, durability, publisher confirms, dead letter queues and prefetch.
Apache RocketMQ: Backend Message Middleware
NameServer and Broker topology, message types, transaction messages, delayed messages, retry and dead letter topics.