Akka and Distributed Systems

  1. Actor Lifecycle and Supervision
    1. Actor Lifecycle States
      1. Actor Creation Process
        1. Constructor Execution
          1. PreStart Hook
            1. Initial Behavior Setup
            2. Active Message Processing
              1. Message Handling Loop
                1. Behavior Execution
                  1. State Updates
                  2. Actor Termination
                    1. Graceful Shutdown
                      1. PostStop Hook
                        1. Resource Cleanup
                        2. Actor Restart Process
                          1. PreRestart Hook
                            1. State Reset
                              1. PostRestart Hook
                                1. Behavior Restoration
                              2. Fault Tolerance Philosophy
                                1. Let It Crash Principle
                                  1. Rationale and Benefits
                                    1. Error Isolation
                                      1. System Resilience
                                      2. Comparison to Defensive Programming
                                        1. Error Handling Strategies
                                          1. Resource Management
                                            1. System Complexity
                                          2. Supervision Hierarchy
                                            1. Parent-Child Relationships
                                              1. Actor Tree Structure
                                                1. Supervision Responsibilities
                                                  1. Failure Escalation
                                                  2. Guardian Actors
                                                    1. Root Guardian
                                                      1. User Guardian
                                                        1. System Guardian
                                                        2. Supervision Scope
                                                          1. Local Supervision
                                                            1. Remote Supervision
                                                              1. Cross-System Supervision
                                                            2. Supervisor Strategies
                                                              1. One-for-One Strategy
                                                                1. Individual Actor Recovery
                                                                  1. Failure Isolation
                                                                    1. Use Cases
                                                                    2. All-for-One Strategy
                                                                      1. Group Recovery Scenarios
                                                                        1. Coordinated Restart
                                                                          1. Use Cases
                                                                          2. Supervision Directives
                                                                            1. Resume Directive
                                                                              1. Restart Directive
                                                                                1. Stop Directive
                                                                                  1. Escalate Directive
                                                                                  2. Custom Supervision Strategies
                                                                                  3. Death Watch and Monitoring
                                                                                    1. Actor Termination Monitoring
                                                                                      1. Watch Registration
                                                                                        1. Terminated Message Handling
                                                                                          1. Cleanup Procedures
                                                                                          2. Monitoring Patterns
                                                                                            1. Health Check Actors
                                                                                              1. Heartbeat Mechanisms
                                                                                                1. Circuit Breaker Patterns

                                                                                            Previous

                                                                                            5. Actor Communication

                                                                                            Go to top

                                                                                            Next

                                                                                            7. Advanced Actor Patterns and Behaviors