advancedReal System Design Problems
Design a Distributed Cache (like Redis Cluster) — consistent hashing and hot-key handling.
The consistent-hashing-and-replication problem: how data is distributed across cache nodes using consistent hashing, how virtual nodes improve distribution evenness, what happens when a node fails, and how the cache handles a hot key that receives wildly disproportionate traffic compared to every other key.
Ready to design this system end to end?
Generate a complete, structured system design answer — requirements, capacity estimation, API design, architecture, database choice, scaling, caching, fault tolerance, security, trade-offs, and more, walked through the way a strong senior engineer would in a real interview.
Sign in to generate a response