Ptolemy Map, 1482 In 2015 some Facebook researchers threw down a gauntlet, challenging anyone who dared to provide stronger consistency in big, heterogeneous systems. In 2023, some researchers (mostly Portuguese) responded with Antipode: Enforcing Cross-Service Causal Consistency in Distributed Applications. Antipode defines an interesting new consistency model, cross-service causal consistency, and an enforcement technique they claim is practical in such systems. Motivating Example Here’s ...
