CAPteoreemissa
CAPteoreemissa is a concept related to distributed computing systems. It states that it is impossible for a distributed data store to simultaneously provide more than two out of the following three guarantees: Consistency, Availability, and Partition tolerance. This theorem is a fundamental principle when designing and understanding the trade-offs in distributed systems. Consistency ensures that every read receives the most recent write or an error. Availability guarantees that every request receives a response, without guarantee that it contains the most recent write. Partition tolerance means that the system continues to operate despite an arbitrary number of messages being dropped (or delayed) by the network between nodes. The CAP theorem implies that designers must choose which two of these three properties to prioritize when building a distributed system. For example, a system might sacrifice consistency for availability in some scenarios, or vice versa, depending on its specific requirements. Understanding these trade-offs is crucial for selecting the appropriate architecture and technologies for a given application. The theorem does not imply that a system cannot achieve all three guarantees in the absence of network partitions. Instead, it highlights the challenges that arise when partitions occur.