MuleESB / Akka interview questions
Benefits of using the Actor model.
- Event-driven model: Actors perform work in response to messages. Communication between Actors is asynchronous, allowing Actors to send messages and continue their own work without blocking to wait for a reply.
- Strong isolation principles: There is no sharing of state between Actors; the only way to observe another actor's state is by sending it a message asking for it.
- Location transparency: The system constructs Actors from a factory and returns references to the instances. Because location doesn't matter, Actor instances can start, stop, move, and restart to scale up and down as well as recover from unexpected failures.
- Lightweight.
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