CAP Theorem: Choosing Two out of Three
When building distributed systems, we always face the limitations of CAP theory: Consistency, Availability, and Partition Tolerance.
What Should a Business Choose?
- CP (Consistency + Partition Tolerance): Important for banking and financial systems, where data must be accurate everywhere and always, even at the cost of temporary unavailability.
- AP (Availability + Partition Tolerance): Ideal for social networks and catalogs, where it is more important for the user to quickly see at least some result than perfectly fresh data.