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CAP Theorem in Practice¶
CAP TheoremDistributedConsistency 3 min read
Practical implications of the CAP theorem on system design. CP vs AP systems.
CP vs AP¶
- CP — consistency + partition tolerance. ZooKeeper, etcd, MongoDB
- AP — availability + partition tolerance. Cassandra, DynamoDB, CouchDB
Decision Making¶
CP: Banking transactions, limited goods inventory, lock management.
AP: Social media feed, product catalog, analytics, shopping cart.
Summary¶
CAP influences every architectural decision. Make conscious trade-offs for each bounded context.
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