Lecture 8: Zookeeper

The podcast focuses on linearizability in storage systems, particularly in the context of Lab 3, explaining its importance in strong consistency and how to determine if a sequence of operations is linearizable. It explores examples of histories that may or may not be linearizable, emphasizing the need for reads to prove system activity and value revelation. The discussion covers strategies for proving or disproving linearizability, including creating a total order of operations and identifying cycles in a graph of operation dependencies. Additionally, the podcast delves into Zookeeper as a successful real-world system, examining its API for general-purpose coordination and addressing the challenge of achieving performance gains with replicated servers, while also explaining how Zookeeper handles reads and writes.