Caching on Joel Hanson https://joelhanson.com/tags/caching/ Recent content in Caching on Joel Hanson Hugo -- gohugo.io en joelhanson025@gmail.com (Joel Hanson) joelhanson025@gmail.com (Joel Hanson) © Joel Hanson Wed, 30 Sep 2026 00:00:00 +0000 Dogpile / cache stampede protection https://joelhanson.com/discoveries/dogpile-cache-stampede/ Wed, 30 Sep 2026 00:00:00 +0000 joelhanson025@gmail.com (Joel Hanson) https://joelhanson.com/discoveries/dogpile-cache-stampede/ When a hot key expires, only one client should recompute. Everyone else waits or uses stale. Thundering herd on wakeups and retries https://joelhanson.com/discoveries/thundering-herd/ Wed, 30 Sep 2026 00:00:00 +0000 joelhanson025@gmail.com (Joel Hanson) https://joelhanson.com/discoveries/thundering-herd/ Too many waiters wake for one event — or too many clients retry at once. Waste, then collapse.