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clock synchronization

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Xiaokun's Architecture Exploration Notes
Xiaokun's Architecture Exploration Notes
May 11, 2025 · Fundamentals

Why Unreliable Clocks Threaten Distributed Systems—and How to Fix Them

This article examines the unreliability of physical clocks in distributed systems, compares synchronous and asynchronous network timing, explains the roles of wall and monotonic clocks, and explores logical clocks, snapshot isolation, and practical solutions such as Google Spanner's TrueTime to ensure data consistency.

Distributed Systemsclock synchronizationdata consistency
0 likes · 11 min read
Why Unreliable Clocks Threaten Distributed Systems—and How to Fix Them
Xiaokun's Architecture Exploration Notes
Xiaokun's Architecture Exploration Notes
May 4, 2025 · Fundamentals

Why Unreliable Clocks Threaten Distributed Systems—and How to Fix Them

This article examines how unreliable physical clocks—both wall and monotonic—affect distributed systems, compares synchronous and asynchronous network timing, illustrates conflicts caused by timestamp drift, and presents logical clocks and Google’s TrueTime as robust solutions for achieving consistent ordering and data reliability.

Distributed SystemsTrueTimeclock synchronization
0 likes · 11 min read
Why Unreliable Clocks Threaten Distributed Systems—and How to Fix Them