Example 5: 0 node cluster, 1 peer successfully joins

• No nodes fully in the cluster

• Local state before (1): {:pairs {}}

• A wants to join

• B sends prepare-join-cluster (1)

• A plays the log

• A encounters (1)

  • Pre: {:pair {}}
  • Post: {:pairs {}}
  • A realizes it is the only peer in the cluster, promotes itself to fully joined status
  • flushes all outbox messages