Chapter II: Databases & Data Modeling
PACELC Theorem
Extends CAP: else (no partition) trade latency against consistency.
In short
PACELC extends CAP: if Partitioned trade A vs C, Else trade Latency vs Consistency.
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Key takeaways
- Even without partitions you trade latency against consistency.
- PA/EL = fast + available; PC/EC = always consistent.