a temida black friday

on YouTube ↗01m

" summary

Migrated from law to software 1.5 years ago and running Black Friday on an American stack, describes building a lightweight incident kit: Node.js + Redis for sessions, feature flags & circuit breakers for emergency rollout, and k6 load tests to validate fixes. Claims an unexpected 4x traffic spike brings service degradation that is contained in about 37 minutes by throttling, rolling back a faulty cache change, and shifting write traffic to a read replica.

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