Reactive Microservices

  1. Observability and Monitoring
    1. The Three Pillars of Observability
      1. Distributed Tracing
        1. Trace Context Propagation
          1. End-to-End Request Tracking
            1. Span Relationships
              1. Trace Sampling
              2. Metrics
                1. System Metrics
                  1. CPU Usage
                    1. Memory Usage
                      1. Network I/O
                      2. Application Metrics
                        1. Request Rates
                          1. Response Times
                            1. Error Counts
                            2. Custom Metrics
                              1. Business Metrics
                                1. Domain-Specific Metrics
                              2. Logging
                                1. Structured Logging
                                  1. Log Aggregation
                                    1. Correlation IDs
                                      1. Log Levels and Filtering
                                    2. Monitoring Key Performance Indicators (KPIs)
                                      1. Latency
                                        1. Average Latency
                                          1. Percentile Latency
                                            1. Tail Latency
                                            2. Error Rates
                                              1. Failure Rate Calculation
                                                1. Alert Thresholds
                                                  1. Error Classification
                                                  2. Throughput
                                                    1. Requests per Second
                                                      1. Message Processing Rate
                                                        1. Transaction Volume
                                                        2. Saturation
                                                          1. Resource Utilization
                                                            1. Bottleneck Identification
                                                              1. Capacity Planning
                                                            2. Alerting and Visualization
                                                              1. Dashboards
                                                                1. Real-Time Monitoring
                                                                  1. Historical Analysis
                                                                    1. Service Health Overview
                                                                    2. Anomaly Detection
                                                                      1. Threshold-Based Alerts
                                                                        1. Machine Learning Approaches
                                                                          1. Trend Analysis
                                                                          2. Alert Management
                                                                            1. Alert Routing
                                                                              1. Escalation Policies
                                                                                1. Alert Fatigue Prevention

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                                                                            5. Testing Reactive Systems

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                                                                            7. Deployment and Operations