can broadcast in limits
- Azure Service Bus Topics and Subscriptions
- subscribers: 2k subscribers per message (broadcast is ok in this limit), for more use: Broadcast
- think of each subscriber as a unit of work that must see each message in the topc (ex: payment service, delivery service, etc)
- throughput: not huge amount of messages per second, bc maintains state on each message, and copies to each subscription - high overhead
- resilience: built in, dead letter queues
- ordering: maintained
- use case:
- e-commerce sends message and
- small broadcasts
- subscribers: 2k subscribers per message (broadcast is ok in this limit), for more use: Broadcast