Handling Compensation with Events
Implement compensation steps in a choreography saga by publishing specific rollback events to reverse previous actions.
Why Compensation is Crucial
In choreography sagas, services react to events. But what happens when one of those services fails to complete its part of a distributed transaction?
We need a way to undo any actions that were successfully performed by previous services. This is where compensation comes in.
What is Compensation?
Compensation is the process of reversing previously completed operations within a distributed transaction. Think of it as a 'rollback' mechanism tailored for microservices.
It ensures that if any step in a multi-service business process fails, the system can return to a consistent state.
All lessons in this course
- Designing Event-Driven Sagas
- Event Bus and Message Brokers
- Handling Compensation with Events
- Building Idempotent Event Consumers