observability

2 articles

• Jun 19, 2026

  Observability for QA: logs, metrics, traces — what to test and how to use it

  Observability through a tester's eyes: the three pillars (logs/metrics/traces) in plain language, how to test observability itself (trace id, metrics, secrets in logs), how QA uses it to localize distributed bugs and silent degradations, SLI/SLO/error budget, and an observability-ready feature checklist.

• Jun 5, 2026

  Load testing: how to design it and not get garbage numbers

  How to do load tests right: types (load/stress/soak/spike/breakpoint), percentiles instead of the average, open vs closed model, realistic data and traffic profile, server-side metrics and saturation, coordinated omission, tools k6/Gatling/Locust/JMeter. A 12-point checklist.