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HLC

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Code Ape Tech Column

Feb 19, 2021 · Databases

Understanding Timestamps in Distributed Transactions: TSO, TrueTime, Lamport Clock, and HLC

This article explains the role of timestamps in distributed transaction processing, comparing implementations such as MVCC‑based TSO, Google’s TrueTime, Lamport logical clocks, and Hybrid Logical Clocks, and discusses their impact on linearizability, consistency guarantees, and practical designs like TiDB Async Commit.

HLCMVCCTSO

0 likes · 14 min read

Understanding Timestamps in Distributed Transactions: TSO, TrueTime, Lamport Clock, and HLC

JD Retail Technology

Aug 29, 2019 · Databases

Design and Architecture of CB‑SQL: A Cloud‑Native Distributed Database

The article explains CB‑SQL's cloud‑native distributed database architecture, covering range‑based sharding, metadata management, hybrid logical clocks, pessimistic distributed transactions with SSI, Raft‑based strong consistency, and horizontal scalability for petabyte‑scale workloads.

Distributed DatabaseHLCRaft

0 likes · 20 min read

Design and Architecture of CB‑SQL: A Cloud‑Native Distributed Database