// Last-Write-Wins (LWW) — simple but loses data
// Whoever has the higher timestamp wins

// Conflict-Free Replicated Data Types (CRDTs)
// Mathematical data structures that merge automatically
// Example: Counter CRDT
class GCounter {
  private counts: Map<string, number> = new Map();

  increment(nodeId: string, amount: number = 1) {
    const current = this.counts.get(nodeId) || 0;
    this.counts.set(nodeId, current + amount);
  }

  merge(other: GCounter): GCounter {
    const merged = new GCounter();
    for (const [nodeId, count] of this.counts) {
      merged.counts.set(nodeId, Math.max(count, other.counts.get(nodeId) || 0));
    }
    return merged;
  }

  value(): number {
    return Array.from(this.counts.values()).reduce((a, b) => a + b, 0);
  }
}

Database Replication — שכפול ו-High Availability

Database Replication — שכפול ו-High Availability

Database Replication — שכפול ו-High Availability