CryptoHacker Noonabout 3 hours ago
Designing High-Availability Identity Systems
5 min read
A staff software engineer details designing identity systems handling billions of daily API calls. Key design trade-offs include observability with structured logging and OpenTelemetry spans, latency engineering with caching and revocation, and failure isolation using bulkhead patterns and circuit breakers. A 0.01% error rate causes tens of thousands of authentication failures.
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