Message Broker vs Event Streaming Platform

Message Broker (Message Queue)

• Point-to-Point communication
• Message will only be delivered to single consumer
• After message is delivered, it will be removed from the queue

Event Streaming Platform (Event Broker)

• Publish-Subscribe communication
• Messages are organized into durable log files or topics
• Message will be delivered to multiple consumers, in a specific order
• Replay ability, Consumers can move backward and forward within log files to re-process messages they've already received.

References

• https://blog.iron.io/message-queue-vs-streaming/
• https://danieltammadge.com/2021/11/message-brokers-vs-event-brokers/
• http://docs.eventide-project.org/core-concepts/streams/streams-vs-queues.html