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A hands-on guide to instrumenting Node.js applications with OpenTelemetry — covering traces, metrics, and logs with auto-instrumentation, custom spans, context propagation, and exporter configuration.
How to implement structured logging that makes production debugging fast — covering JSON log formats, context propagation, log levels, sensitive data masking, and integration with log aggregation tools.
How to build a complete observability stack — connecting distributed traces, structured logs, and metrics to debug production issues faster than monitoring alone.
When a request touches five services, logs from each one are useless in isolation — distributed tracing ties them together with trace IDs, spans, and context propagation.
Service Level Objectives transform vague reliability goals into measurable contracts — here's how to define SLIs, set SLOs, and use error budgets to balance reliability with velocity.
Alert fatigue kills incident response — build a monitoring strategy around SLIs, meaningful thresholds, and actionable alerts instead of noisy dashboards.
Structured logging, log levels, and correlation IDs — the patterns that turn noisy log output into a searchable, actionable observability layer.