Observability & Operations
The three pillars of observability and the operational practices that keep production systems reliable — from alerting and SLOs to incident response and capacity planning.
The Three Pillars of Observability
Logs, metrics, and traces — the foundational signals for understanding distributed systems.
Log Aggregation
Centralized collection, parsing, and indexing of logs from distributed systems.
Logging Architecture
Structured event records for diagnosis and audit — log levels, formats, and retention.
Metrics & Monitoring
Numeric signals over time — counters, gauges, histograms, and the RED/USE method.
Metrics & Telemetry
Collecting and shipping telemetry data at scale with minimal overhead.
Distributed Tracing
End-to-end request path visibility across services for latency debugging.
OpenTelemetry
The vendor-neutral observability standard — instrumentation, collectors, and exporters.
Alerting Strategies
Actionable, low-noise alerts — symptom-based alerting, routing, and escalation.
SLOs & Error Budgets
Service level objectives and error budgets for reliability measurement.
SLI / SLO / SLA
Service level indicators, objectives, and agreements — reliability measurement done right.
Health Checks
Liveness, readiness, and startup probes for container and service health monitoring.
Synthetic Monitoring
Proactively testing system behavior with scripted user journeys from external probes.
Continuous Profiling
CPU, memory, and I/O profiling in production to identify performance bottlenecks.
Chaos Engineering & Observability
Using controlled failure injection to validate observability coverage and system resilience.
Incident Management
Detection, triage, response, communication, and postmortem for production incidents.
Runbooks
Prescribed, automated, and interactive procedures for common operational events.
Capacity Planning
Forecasting compute, storage, and network headroom before you need it.
Structured Logging
Emitting logs as machine-parseable key-value pairs for reliable search and correlation.
Feature Flags & Observability
Decoupling deployment from release and measuring feature impact with observability.