Hybrid Logical Clock

JD Retail Technology

Jul 3, 2019 · Databases

CB‑SQL: JD Retail’s Elastic Distributed Database Built on CockroachDB – Architecture and Implementation Details

The article introduces CB‑SQL, JD Retail’s next‑generation elastic database based on CockroachDB, and comprehensively explains its overview, layered architecture, storage replication, cluster management, MVCC, hybrid logical clocks, lock‑free distributed transactions, CDC changefeeds, and SQL interface support.

CDCCockroachDBDistributed Database

0 likes · 14 min read

CB‑SQL: JD Retail’s Elastic Distributed Database Built on CockroachDB – Architecture and Implementation Details

Architecture Digest

Nov 7, 2017 · Databases

Event Ordering, Logical Clocks, TrueTime, and Hybrid Logical Clock in Distributed Systems

The article explains how distributed systems achieve linearizability by using logical clocks, TrueTime, Hybrid Logical Clocks, and Timestamp Oracle mechanisms to establish a global ordering of events despite clock skew and network delays.

Hybrid Logical ClockLinearizabilityTrueTime

0 likes · 13 min read