Advanced Restart Strategies
Delve into one_for_one, one_for_all, and rest_for_one restart strategies, understanding their implications for fault tolerance.
Intro to Restart Strategies
Welcome to a crucial topic in Erlang: restart strategies! These define how a supervisor reacts when one of its child processes crashes.
Understanding these strategies is key to building fault-tolerant and self-healing systems, which is a hallmark of Erlang/OTP.
Supervisors: The Fault Managers
Before diving in, let's quickly recap: a supervisor is a special process that monitors other processes (its children).
- If a child process dies, the supervisor detects it.
- Based on its configured restart strategy, the supervisor decides how to bring the system back to a healthy state.
- This ensures your application can recover from individual process failures automatically.
All lessons in this course
- Complex Supervision Trees
- Dynamic Process Management
- Advanced Restart Strategies
- Supervisor Bridges & Mixed Process Hierarchies