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July 5, 2021 124 mins

We wrap up our replication discussion of Designing Data-Intensive Applications, this time discussing leaderless replication strategies and issues, while Allen missed his calling, Joe doesn’t read the gray boxes, and Michael lives in a future where we use apps.

If you’re reading this via your podcast player, you can find this episode’s full show notes at https://www.codingblocks.net/episode162. As Joe would say, check it out and join in on the conversation.

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Designing Data Intensive Applications

Check out the book!

Single Leader to Multi-Leader to Leaderless

  • When you have leaders and followers, the leader is responsible for making sure the followers get operations in the correct order
  • Dynamo brought the trend to the modern era (all are Dynamo inspired) but also…
    • Riak
    • Cassandra
    • Voldemort
  • We talked about NoSQL Databases before:
  • What exactly is NewSQL? https://en.wikipedia.org/wiki/NewSQL
  • What if we just let every replica take writes? Couple ways to do this…
    • You can write to several replicas
    • You can use a coordinator node to pass on the writes
  • But how do you keep these operations in order? You don’t!
    • Though
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