Welcome to the State Machine

Explore the concept of stateful systems and sagas in this 58-minute conference talk from NDC Oslo. Delve into the misconceptions surrounding stateless design and discover how complex software systems require collaborative processing. Learn about modeling long business transactions, distributed resources, and eventual consistency without relying on distributed transactions. Examine the role of sagas in designing fault-tolerant systems, and gain insights into implementing process managers, domain experts, and autonomy. Investigate practical examples, potential pitfalls, and key takeaways for effectively utilizing sagas in complex collaborative domains.

Intro
When I was young
The order doesnt matter
A naive implementation
A process manager
A simple order manager
A process manager like a punch card
The big bowl of mud
Single responsibility principle
Domain experts
Autonomy
Sagas
Recap
Blackbox
Compensation
Timeouts
Table schema
Summary
Pitfalls
Main takeaways
Orchestration