DevOps

  1. Monitoring and Observability
    1. Observability Fundamentals
      1. Three Pillars of Observability
        1. Metrics
          1. Time Series Data
            1. Aggregation and Analysis
              1. Alerting Thresholds
              2. Logs
                1. Structured Logging
                  1. Log Correlation
                    1. Log Retention
                    2. Traces
                      1. Distributed Tracing
                        1. Request Flow Analysis
                          1. Performance Bottlenecks
                        2. Monitoring Strategies
                          1. Proactive vs Reactive Monitoring
                            1. White-box vs Black-box Monitoring
                              1. Synthetic Monitoring
                            2. Metrics and Monitoring
                              1. Monitoring Methodologies
                                1. USE Method
                                  1. Utilization
                                    1. Saturation
                                      1. Errors
                                      2. RED Method
                                        1. Rate
                                          1. Errors
                                            1. Duration
                                            2. Four Golden Signals
                                              1. Latency
                                                1. Traffic
                                                  1. Errors
                                                    1. Saturation
                                                  2. Prometheus Ecosystem
                                                    1. Prometheus Server
                                                      1. Data Collection
                                                        1. Query Language (PromQL)
                                                          1. Storage and Retention
                                                          2. Exporters and Instrumentation
                                                            1. Application Metrics
                                                              1. Infrastructure Metrics
                                                                1. Custom Exporters
                                                                2. Alertmanager
                                                                  1. Alert Rules
                                                                    1. Notification Routing
                                                                      1. Alert Grouping
                                                                    2. Visualization and Dashboards
                                                                      1. Grafana
                                                                        1. Dashboard Creation
                                                                          1. Data Sources
                                                                            1. Alerting Integration
                                                                            2. Dashboard Design Principles
                                                                              1. Information Hierarchy
                                                                                1. Visual Best Practices
                                                                                  1. User Experience
                                                                              2. Logging and Log Management
                                                                                1. Centralized Logging
                                                                                  1. Log Aggregation Benefits
                                                                                    1. Log Shipping Methods
                                                                                      1. Log Processing Pipeline
                                                                                      2. ELK Stack
                                                                                        1. Elasticsearch
                                                                                          1. Index Management
                                                                                            1. Search and Analytics
                                                                                              1. Cluster Management
                                                                                              2. Logstash
                                                                                                1. Input Plugins
                                                                                                  1. Filter Plugins
                                                                                                    1. Output Plugins
                                                                                                    2. Kibana
                                                                                                      1. Log Visualization
                                                                                                        1. Dashboard Creation
                                                                                                          1. Index Pattern Management
                                                                                                        2. Alternative Logging Solutions
                                                                                                          1. Fluentd and Fluent Bit
                                                                                                            1. Splunk
                                                                                                              1. Cloud Logging Services
                                                                                                              2. Log Management Best Practices
                                                                                                                1. Log Format Standardization
                                                                                                                  1. Log Level Management
                                                                                                                    1. Performance Considerations
                                                                                                                  2. Distributed Tracing
                                                                                                                    1. Tracing Concepts
                                                                                                                      1. Spans and Traces
                                                                                                                        1. Context Propagation
                                                                                                                          1. Sampling Strategies
                                                                                                                          2. Tracing Tools
                                                                                                                            1. Jaeger
                                                                                                                              1. Architecture and Components
                                                                                                                                1. Trace Collection
                                                                                                                                  1. Trace Analysis
                                                                                                                                  2. Zipkin
                                                                                                                                    1. Instrumentation Libraries
                                                                                                                                      1. Trace Visualization
                                                                                                                                      2. OpenTelemetry
                                                                                                                                        1. Unified Observability Framework
                                                                                                                                          1. Auto-instrumentation
                                                                                                                                            1. Vendor Neutrality
                                                                                                                                        2. Alerting and Incident Management
                                                                                                                                          1. Alerting Best Practices
                                                                                                                                            1. Alert Fatigue Prevention
                                                                                                                                              1. Actionable Alerts
                                                                                                                                                1. Alert Prioritization
                                                                                                                                                2. Incident Response
                                                                                                                                                  1. Incident Classification
                                                                                                                                                    1. Response Procedures
                                                                                                                                                      1. Communication Protocols
                                                                                                                                                      2. Post-Incident Analysis
                                                                                                                                                        1. Blameless Post-mortems
                                                                                                                                                          1. Root Cause Analysis
                                                                                                                                                            1. Improvement Actions

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