Sundial: Harmonizing Concurrency Control and Caching in a Distributed OLTP Database Management System
Summary: Sundial: in-memory distributed optimistic CC using runtime logical leases to assign commit timestamps and reduce aborts. It caches remote data with coherence; unifies CC and caching; shows up to 57% gains and up to 4.6x on skew. (summarized by gpt-5-nano on Feb 09 2026)
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Authors
- 1. Xiangyao Yu (Massachusetts Institute of Technology)
- 2. Yu Xia (Massachusetts Institute of Technology)
- 3. Andrew Pavlo (Carnegie Mellon University)
- 4. Daniel Sanchez (Massachusetts Institute of Technology)
- 5. Larry Rudolph (Massachusetts Institute of Technology; Two Sigma Investments, LP)
- 6. Srinivas Devadas (Massachusetts Institute of Technology)
BibTeX Citation
@article{yu_vldb18,
title = {{Sundial: Harmonizing Concurrency Control and Caching in a Distributed OLTP Database Management System}},
author = {Yu, Xiangyao and Xia, Yu and Pavlo, Andrew and Sanchez, Daniel and Rudolph, Larry and Devadas, Srinivas},
journal = {PVLDB},
series = {{VLDB} '18},
volume = {11},
number = {10},
pages = {1289--1302},
doi = {10.14778/3231751.3231763},
url = {https://doi.org/10.14778/3231751.3231763},
year = {2018}
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