Harden database sharding strategy
Hard System Design arena: partition keys, hot shards, rebalancing, and query patterns
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Missing prerequisites: system-design-easy-sharding-strategy
A multi-tenant analytics table outgrew one primary database and noisy tenants dominate writes. You are working inside a system design review board, and the arena only clears when the result is safe, deterministic, and explainable.
Learn to apply partition keys, hot shards, rebalancing, and query patterns in a system design review board while explaining the invariant, safety constraints, and hidden edge cases.
- Demonstrates partition keys, hot shards, rebalancing, and query patterns
- Handles the visible sample and hidden edge cases
- Keeps output deterministic and explainable
- Avoids unsafe dynamic execution
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Genie Mentor Core
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