Concepts
Broker
What the broker does in FluxMQ and how protocol brokers fit together
Broker
Last Updated: 2026-02-05
FluxMQ runs multiple protocol brokers that share the same durable queue manager:
- MQTT broker for MQTT 3.1.1/5.0 over TCP and WebSocket
- AMQP 1.0 broker
- AMQP 0.9.1 broker
Each broker owns its protocol state machine, but all queue-capable traffic flows into the shared queue manager. This lets you mix protocols while keeping one durability and delivery pipeline.
What the Broker Handles
- Session lifecycle (connect, resume, takeover)
- Topic routing and shared subscriptions
- Retained messages and wills
- QoS enforcement and retry policies
- Queue integration for
$queue/topics