Priya is a site reliability engineer with strong opinions about alerts that wake people up. She writes about uptime maths, SLAs, on-call and synthetic checks.
Network Monitoring, Uptime & Alerting
A green ping check only proves a kernel answered. What ICMP, TCP, HTTP and synthetic checks each catch, and a layered plan for one web service.
Continue reading Ping is not monitoring: ICMP, TCP and synthetic checks compared ›
99.9 percent of a 30-day month is 43.2 minutes. The window, the maintenance clause and the place you measure from decide the rest.
Continue reading What 99.9 percent really allows: uptime maths and how SLAs are measured ›
A page should mean someone has to act now. Symptom alerts, severity tiers, hysteresis, dependencies and three bad alerts rewritten.
Continue reading Alert fatigue: writing alerts people still read six months later ›
