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Einsteinder
Einsteinder

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Multi-Leader Replication

single-leader multi-leader
Performance significant latency network delay hidden from users
Tolerance of datacenter outages failover each datacenter operating independently

Solution for multi-leader confliction:

  1. last write wins (LWW)
  2. predefined the replica ranking
  3. merge values together
  4. record the conflict, resolve later

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