Epoch-based Optimistic Concurrency Control in Geo-replicated Databases
Summary: Minerva uses epoch-based asynchronous replication to decouple propagation from commitment, enabling coordination-free optimistic execution in geo-replicated multi-leader OLTP. Conflict-graph maximum-weight independent-set validation and deterministic re-execution preserve serializability while minimizing invalidations. (summarized by gpt-5.6-luna on Jul 26 2026)
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Authors
- 1. Yunhao Mao (University of Toronto)
- 2. Harunari Takata (Keio University)
- 3. Michail Bachras (University of Toronto)
- 4. Yuqiu Zhang (University of Toronto)
- 5. Shiquan Zhang (University of Toronto)
- 6. Gengrui Zhang (Concordia University)
- 7. Hans-Arno Jacobsen (University of Toronto)
BibTeX Citation
@inproceedings{mao_sigmod26,
title = {{Epoch-based Optimistic Concurrency Control in Geo-replicated Databases}},
author = {Mao, Yunhao and Takata, Harunari and Bachras, Michail and Zhang, Yuqiu and Zhang, Shiquan and Zhang, Gengrui and Jacobsen, Hans-Arno},
series = {{SIGMOD} '26},
booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
publisher = {Association for Computing Machinery},
doi = {10.1145/3802052},
url = {https://dl.acm.org/doi/10.1145/3802052},
year = {2026}
}
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