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Order Matching Engine

有AC without P 嗎?

  • 不可能的，因為network 不可能沒有network latency和error

CP without A​

  • Raft algorithm

    • Leader Election
    • Log Replication
    • SOFAJRaft-RheaKV

  • Leader Crash

    • Follow with largest term become leader

  • Redis, ZooKeeper

AP without C​

  • User might get stale data
  • Eureka, Nacos
  • Prioritise Availability over Consistency