Computer Science > Databases
arXiv:2304.09692 (cs)
[Submitted on 19 Apr 2023]
Title:GeoGauss: Strongly Consistent and Light-Coordinated OLTP for Geo-Replicated SQL Database
Authors:Weixing Zhou,Qi Peng,Zijie Zhang,Yanfeng Zhang,Yang Ren,Sihao Li,Guo Fu,Yulong Cui,Qiang Li,Caiyi Wu,Shangjun Han,Shengyi Wang,Guoliang Li,Ge Yu
View a PDF of the paper titled GeoGauss: Strongly Consistent and Light-Coordinated OLTP for Geo-Replicated SQL Database, by Weixing Zhou and 13 other authors
View PDFAbstract:Multinational enterprises conduct global business that has a demand for geo-distributed transactional databases. Existing state-of-the-art databases adopt a sharded master-follower replication architecture. However, the single-master serving mode incurs massive cross-region writes from clients, and the sharded architecture requires multiple round-trip acknowledgments (e.g., 2PC) to ensure atomicity for cross-shard transactions. These limitations drive us to seek yet another design choice. In this paper, we propose a strongly consistent OLTP database GeoGauss with full replica multi-master architecture. To efficiently merge the updates from different master nodes, we propose a multi-master OCC that unifies data replication and concurrent transaction processing. By leveraging an epoch-based delta state merge rule and the optimistic asynchronous execution, GeoGauss ensures strong consistency with light-coordinated protocol and allows more concurrency with weak isolation, which are sufficient to meet our needs. Our geo-distributed experimental results show that GeoGauss achieves 7.06X higher throughput and 17.41X lower latency than the state-of-the-art geo-distributed database CockroachDB on the TPC-C benchmark.
| Subjects: | Databases (cs.DB) |
| Cite as: | arXiv:2304.09692 [cs.DB] |
| (orarXiv:2304.09692v1 [cs.DB] for this version) | |
| https://doi.org/10.48550/arXiv.2304.09692 arXiv-issued DOI via DataCite |
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View a PDF of the paper titled GeoGauss: Strongly Consistent and Light-Coordinated OLTP for Geo-Replicated SQL Database, by Weixing Zhou and 13 other authors
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