Availability and consistency in the presence of partitions

The CAP theorem provides system designers with a choice between three guarantees: consistency, availability, and partition tolerance. While partitions are rare, there is an incredible range of flexibility for handling partitions and recovering from them. Thus, our goal is to allow combinations of consistency and availability and not worry about choosing one over the other. Such an approach refines the perceived limitations of CAP, paving the way for operating during a partitioning process and for recovery afterwards. Take for example
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