A replicated key-value store is implemented using a “last-write-wins” consensus protocol. To improve throughput and latency in cross-data-center configurations, a system deploys a cross-cluster, learner-only member to a cluster of nodes (e.g., a data center). The cross-cluster, learner-only member submits key-values received at local leader members to remote clusters. Conflicts between the key-values and initial values at the remote clusters are resolved using a “last-write-wins” consensus protocol.

Country: United States
Grant Date: November 17, 2020
INVENTORS: Jung-Sang Ahn, Sami Ben Romdhane, Guogen Zhang

Jung-Sang Ahn

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