Cornus: Atomic Commit for a Cloud DBMS with Storage Disaggregation, by Zhihan Guo, Xinyu Zeng, Kan Wu, Wuh-Chwen Hwang, Ziwei Ren, Xiangyao Yu, Mahesh Balakrishnan, and Philip A. Bernstein, at VLDB 2022. This paper describes some optimizations to two-phase commit on top of cloud storage. If you’re using cloud storage and 2PC, this protocol will reduce commit latency and avoid 2PC’s dreaded “blocking problem”. --- Table Of Contents Background: Two-Phase Commit Let’s say we have a par...