Caching

2 articles

Web Engineering • Oct 15, 2026

Hyperdrive MySQL on Workers: 3 Pooler Bugs and How to Test Them

Hyperdrive MySQL on Workers is GA. Three pooler bugs it hit, from lost emoji to a 0.001% empty-result cache fault, and the test that catches each.

7 min read

Web Engineering • Sep 5, 2026

How to Give an AI Agent CMS Write Access Without Melting the Cache

AI agent CMS write access breaks caches fast. The layered invalidation pattern that let one CMS absorb 5,000 RPS spikes and a 28,000 RPS DDoS without a hiccup.

11 min read