Designing Actor Systems

This lecture introduces the principles of designing actor systems for reactive programming, focusing on the communication between actors and the asynchronous processing of tasks. Starting with the concept of splitting tasks among a large group of easily replaceable 'actors', the lecture progresses to practical examples like the Link Checker system. The implementation details cover writing a web client, defining actor behaviors, handling timeouts, and integrating actors with futures. The lecture also explores actor-based logging, scheduling tasks, and managing multiple actors efficiently through a Receptionist. Throughout the lecture, the importance of non-blocking, event-driven, and immutable data structures in building reactive applications is emphasized.