Lightweight IoT protocol using publish and subscribe. Event Grid namespaces have a built-in broker for it; Event Hubs has none.
Also called Message Queuing Telemetry Transport.
Read more: Microsoft Learn
In the Ultra Transcenders books
Each book explains MQTT in context, with comparison tables and the common traps.
Terms in this definition
- Event Grid
Routes events, Key Vault SecretNearExpiry for example, by pushing them to handlers such as Azure Functions. It stores nothing and cannot receive Entra diagnostic settings.
- Azure Event Hubs
Azure service for ingesting telemetry at high volume over HTTPS or AMQP; diagnostic settings can send data to it.
Related terms
- Azure Event Grid
Microsoft's managed pub/sub broker for discrete events. Publishers hand events over, filters decide who receives them, and handlers get them over HTTP by push or by pulling, with failed deliveries retried and, if necessary, dead-lettered. It also works as a broker for MQTT.