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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Kai Liu

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Aug 2026

SOS: A High-Performance Distributed Key-Value Store for Large-Scale Online Services

SOS is a distributed key-value store that bridges this gap by guaranteeing at most one physical disk I/O per operation, enforced by three co-designed components: a flat in-memory hash index with O (1) lookup; a disk storage engine with a hierarchical variable-size layout that limits internal fragmentation to ≈7.93%; an...

Ying-Xin Li, Kai Liu, Hanglun Xie · 0 citations

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