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System Design Drill Day 1: Latency, Throughput and Availability
Your load balancer says both app servers are healthy. Users say the site is slow. A teammate says Redis "blipped" for a few seconds and half the fleet got pulled out of rotation. All three can be true
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Abhinav Sharma
Founder of Impact Gate. See who breaks before you change an API.
The honest health check point is underrated. A /health that returns 200 while MySQL is down just teaches people to ignore it. Reporting each dependency separately is what makes it useful during an incident.