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High availability is one of the factors that must be considered in the design of distributed systems. This chapter introduces consensus algorithms for distributed systems and compares the methods used by MySQL and PolarDB to achieve high availability. This chapter also discusses the implementation of shared storage architectures like Aurora and PolarFS and presents some of the ongoing optimization work concerning the file system in PolarDB.

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High-Availability Shared Storage System

  • 章节

  • 发表日期：

    2025年

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  • Feifei Li,
  • Xuan Zhou,
  • Peng Cai,
  • Rong Zhang,
  • Gui Huang,
  • XiangWen Liu

摘要

High availability is one of the factors that must be considered in the design of distributed systems. This chapter introduces consensus algorithms for distributed systems and compares the methods used by MySQL and PolarDB to achieve high availability. This chapter also discusses the implementation of shared storage architectures like Aurora and PolarFS and presents some of the ongoing optimization work concerning the file system in PolarDB.