Consistent Hashing Ring with Virtual Nodes for Shard Rebalancing
Company: OpenAI
Role: Software Engineer
Category: Coding & Algorithms
Difficulty: hard
Interview Round: Technical Screen
Overview: This question evaluates a candidate's ability to design and implement a consistent hashing ring with virtual nodes for distributing keys across shards. It tests knowledge of hash-based data structures, minimal-movement rebalancing, and precise algorithmic implementation under tie-breaking and complexity constraints, commonly asked in coding interviews for distributed systems roles.
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