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Toma Morris on CRaft: An Erasure-coding-supported Version of Raft [PWL NYC]

Paper: https://www.usenix.org/system/files/f... Authors: Zizhong Wang, Tongliang Li, Haixia Wang, Airan Shao, Yunren Bai, Shangming Cai, Zihan Xu, and Dongsheng Wang, Tsinghua University This paper discusses a method for using erasure codes (specifically Reed-Solomon codes) to encode data stored in a Raft cluster to reduce the volume of storage and network traffic, while maintaining the failure-tolerance guarantees that Raft provides. We will briefly discuss the basics of Raft and erasure codes, and then talk through practical examples of how the cluster encodes, stores, and reconstructs data during different failure scenarios. Speaker Bio *** Toma Morris is a software engineering manager with the Trust and Safety team at Hinge where they and their team work to prevent scams, harassment, and violence. They have also worked in robotics, AI, medical devices, and various other kinds of projects. Toma studied both Electrical Engineering and History, and is as interested in talking about the early Islamic empire as in distributed systems.