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CRDTs - Stop Worrying About Write Conflicts | Systems Design 0 to 1 with Ex-Google SWE

CRDTs - Stop Worrying About Write Conflicts | Systems Design 0 to 1 with Ex-Google SWE
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3-Second Blueprint (English)

  1. Multi-leader replication causes write conflicts; Last-Write-Wins fails under clock skew, whereas CRDTs converge automatically.
  2. Op-based CRDTs broadcast compact updates but demand causally ordered, duplicate-free delivery since ops aren't idempotent.
  3. State-based CRDTs merge full local states over gossip protocols for eventual consistency at the cost of higher network payload.
CRDTsMulti-Leader ReplicationCausal BroadcastGossip Protocols

3-Sekunden-Fazit (Deutsch)

  1. Multi-Leader-Replikation erzeugt Schreibkonflikte; Last-Write-Wins scheitert an Clock-Skew, CRDTs konvergieren automatisch.
  2. Op-basierte CRDTs senden kompakte Updates, erfordern aber kausal geordnete, duplikatfreie Zustellung mangels Idempotenz.
  3. Zustandsbasierte CRDTs führen lokale Zustände per Gossip-Protokoll zusammen, benötigen dafür jedoch deutlich mehr Bandbreite.
CRDTsMulti-Leader-ReplikationKausaler BroadcastGossip-Protokolle

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