Akka and Distributed Systems

  1. Akka Persistence
    1. Event Sourcing Principles
      1. Event-Driven Architecture
        1. Event Store Concepts
          1. State Reconstruction
            1. Temporal Queries
              1. Event Versioning
              2. CQRS Pattern
                1. Command Model
                  1. Query Model
                    1. Model Separation Benefits
                      1. Consistency Considerations
                        1. Implementation Patterns
                        2. Persistent Actors
                          1. PersistentActor Lifecycle
                            1. Recovery Phase
                              1. Command Handling Phase
                                1. Event Persistence
                                2. Command Processing
                                  1. Command Validation
                                    1. Business Logic Execution
                                      1. Event Generation
                                      2. Event Handling
                                        1. Event Application
                                          1. State Updates
                                            1. Side Effects
                                            2. Persistence ID Management
                                              1. Unique Identification
                                                1. Naming Strategies
                                                  1. Migration Considerations
                                                2. Journal and Event Storage
                                                  1. Journal Plugins
                                                    1. In-Memory Journal
                                                      1. File-Based Journal
                                                        1. Database Journals
                                                          1. Custom Journal Implementation
                                                          2. Event Serialization
                                                            1. Serialization Requirements
                                                              1. Schema Evolution
                                                                1. Performance Optimization
                                                                2. Event Ordering
                                                                  1. Event Deduplication
                                                                  2. Snapshots
                                                                    1. Snapshot Purpose
                                                                      1. Recovery Optimization
                                                                        1. Memory Management
                                                                          1. Performance Benefits
                                                                          2. Snapshot Strategies
                                                                            1. Frequency Configuration
                                                                              1. Size-Based Triggers
                                                                                1. Time-Based Triggers
                                                                                2. Snapshot Stores
                                                                                  1. Storage Backends
                                                                                    1. Serialization
                                                                                      1. Cleanup Policies
                                                                                    2. Recovery Mechanisms
                                                                                      1. Event Replay
                                                                                        1. Sequential Processing
                                                                                          1. Batch Processing
                                                                                            1. Incremental Recovery
                                                                                            2. Snapshot Recovery
                                                                                              1. Snapshot Loading
                                                                                                1. Event Replay from Snapshot
                                                                                                2. Recovery Optimization
                                                                                                3. Persistence Query
                                                                                                  1. Query Capabilities
                                                                                                    1. Event Streaming
                                                                                                      1. Current Events
                                                                                                        1. Live Events
                                                                                                        2. Read-Side Projections
                                                                                                          1. Projection Building
                                                                                                            1. Projection Updates
                                                                                                              1. Projection Consistency
                                                                                                              2. Integration Patterns
                                                                                                                1. Event-Driven Integration
                                                                                                                  1. Real-Time Analytics
                                                                                                                    1. Audit Trails
                                                                                                                  2. Advanced Persistence Patterns
                                                                                                                    1. Saga Pattern
                                                                                                                      1. Process Managers
                                                                                                                        1. Event Sourced Aggregates
                                                                                                                          1. Multi-Writer Scenarios

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                                                                                                                        9. Akka Streams

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                                                                                                                        11. Akka HTTP