This work provides a strong foundation for understanding causality , both within distributed systems and more broadly. Its principles underpin systems achieving causal consistency, a powerful form of consistency that ensures high availability. Presented at SOSP 2011, this paper features contributions from prominent distributed systems researchers Wyatt Lloyd and Michael Freedman . Paper Link Let's begin with some basic concepts. Causal Ordering In 1978, Leslie Lamport published Time, Clocks, and the Ordering of Events in a Distributed System , a seminal paper that significantly impacted distributed system design. This work, alongside Paxos and TLA+ , stands as one of Lamport's most influential contributions. A fundamental challenge in distributed systems is clock synchronization . Perfect synchronization is unattainable, a fact rooted in both computer science and physics. However, the goal isn't perfect synchronization itself, but rather the ability to totally order even...
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