Session store design: 10 million users, every request
Designing a session store for 10 million concurrent users end to end: sticky vs distributed vs client-side sessions, sizing a Redis Cluster, local caching and invalidation, what users see when a datacentre fails, and the written decision between Redis, DynamoDB and a custom build.
01 · Previously
W01 · DAY 05 · Session Store Design
Four days, four tools. Today: one system.
Previously: hot keys
Previously, on Day 4, you handled hot keys: detect them, cache them, split them.
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