Distributed Tracing

  1. Introduction to Observability
    1. Definition of Observability
      1. Origins in Control Theory
        1. Observability vs Monitoring
          1. System State Inference
          2. The Three Pillars of Observability
            1. Metrics
              1. Time-Series Data
                1. Aggregated Measurements
                  1. Types of Metrics
                    1. Counters
                      1. Gauges
                        1. Histograms
                          1. Summaries
                        2. Logs
                          1. Event Records
                            1. Structured vs Unstructured Logs
                              1. Log Levels and Categories
                                1. Centralized Logging
                                2. Traces
                                  1. Request Flow Tracking
                                    1. Causal Relationships
                                      1. End-to-End Visibility
                                    2. Observability in Distributed Systems
                                      1. Monitoring Challenges
                                        1. Service Proliferation
                                          1. Dynamic Topologies
                                            1. Cross-Service Dependencies
                                              1. Heterogeneous Technology Stacks
                                              2. Need for Correlation
                                                1. Context Preservation
                                                  1. Root Cause Analysis

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                                              1. Fundamentals of Distributed Systems

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                                              3. Core Concepts of Distributed Tracing