Additional Notes
How would you explain a compensating transaction in the context of Sagas in an interview?
Track: Java
Topic: Microservice Architecture
Focus: Eventual Consistency (Sagas)
Java: Eventual Consistency (Sagas)
Answer
An operation that logically undoes a previous transaction step if it fails.
Compensating transactions are essential in Sagas to maintain data consistency. They don't perform a database rollback but rather a logical undo. For example, if a flight booking service reserves a seat but the payment fails, the compensating transaction would release the seat reservation.
Compensating transactions are essential in Sagas to maintain data consistency. They don't perform a database rollback but rather a logical undo. For example, if a flight booking service reserves a seat but the payment fails, the compensating transaction would release the seat reservation.
Topics: Eventual Consistency (Sagas) Java Microservice Architecture