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Lessons (2)

• Distributed Coordination: Consensus, Heartbeats and Gossip

  … svg) Problem Tool Guarantee --- --- --- One ordered configuration/log Raft or Paxos-style consensus Majority agreement Is a node …

• Brokers, Replication & Durability

  … KRaft (Kafka 3.3+, required in 4.0)"] CQ["Controller quorum<br/ (Raft consensus)"] <-- KB2[Brokers] end Kafka …