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.
clock synchronizationdata consistencydistributed systems
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