🔍 Tracing & 🚨 Alerting in System Design (Part 3 of Observability Series)
Introduction: Why Metrics & Logs Aren’t Enough
Imagine you’re debugging a checkout flow in an e-commerce system:
Metrics say latency has spiked.
Logs show database timeouts.
But you don’t know: Which request was slow? Which service in the chain ca...
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