• State Machine Replication, and Why You Should Care with Doug Patti

  • Apr 20 2022
  • Length: 1 hr and 12 mins
  • Podcast

State Machine Replication, and Why You Should Care with Doug Patti

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  • Summary

  • Doug Patti is a developer in Jane Street’s Client-Facing Tech team, where he works on a system called Concord that undergirds Jane Street’s client offerings. In this episode, Doug and Ron discuss how Concord, which has state-machine replication as its core abstraction, helps Jane Street achieve the reliability, scalability, and speed that the client business demands. They’ll also discuss Doug’s involvement in building a successor system called Aria, which is designed to deliver those same benefits to a much wider audience.

    You can find the transcript for this episode on our website.

    Some links to topics that came up in the discussion:

    • Jane Street’s client-facing trading platforms
    • A Signals and Threads episode on market data and multicast which discusses some of the history of state-machine replication in the markets.
    • The FIX protocol
    • UDP multicast
    • Reliable multicast
    • Kafka
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