Monitoring craftFree guidePDF + web

Why did that page anyone? The alert-noise playbook

A rebooted server used to mean forty emails. Alert noise is a design problem with four known fixes: flap damping, recovery bursts held back, silence detection, quiet hours with a break-through. Plus a checklist to audit your own alerting in an afternoon.

Four mechanisms, explainedThe harder question: why didn’t it page?A 30-minute audit checklist

web-03 — flapping, damped

03:12 link down · 03:12 link up · 03:13 link down (x14)

damped: 1 notice sent — outage 4m 20s, 14 transitions recorded

suppressed 13 pages · reason: flap damping · visible in the audit

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