Observability terms
You cannot fix what you cannot see
Running software in production without observability is flying blind. Metrics, logs, traces, dashboards, alerting, and the three pillars of observability give you the insight needed to understand what your system is actually doing under real conditions. This category covers the tools, patterns, and vocabulary of production-grade visibility.
Trace Sampling Strategies
Sampling records only a fraction of traces to control cost — head-based sampling decides at start, tail-based decides at end (after seeing the full trace), enabling smart error/latency capture.
2mo ago
observability intermediate
Traces & Spans PHP 7.0+
The building blocks of distributed tracing — a trace represents a complete request journey across services, composed of spans that each record one operation with its start time, duration, and parent–child relationship.
2mo ago
observability intermediate