Observability is being able to look inside a running system.
Not at one moment you planned for. At any moment, and understand what it's actually doing.
It takes several components working together to make a system visible from the outside.
This week's deep dive on System Design Labs is a full crash course.
The pillars, how they fit, and how to follow one request end to end across the whole system.
We cover OpenTelemetry, logs, metrics, traces, SLOs, sampling, profiling, eBPF, and more.
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