Timestamp as a Service, not an Oracle
Summary: Replace centralized timestamp oracle with a bipartite client-server logical timestamp service whose servers do not communicate, providing timestamp availability unless a majority of servers fail. TaaS formalizes availability/monotonicity, proves correctness of a monotonic spacetime over clocks, and a prototype achieves TiDB-comparable performance and datacenter-level resilience. (summarized by gpt-5-mini on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Yishuai Li (Alibaba)
- 2. Yunfeng Zhu (Alibaba)
- 3. Chao Shi (Alibaba)
- 4. Guanhua Zhang (Alibaba)
- 5. Jianzhong Wang (Alibaba)
- 6. Xiaolu Zhang (Alibaba)
BibTeX Citation
@article{li_vldb24,
title = {{Timestamp as a Service, not an Oracle}},
author = {Li, Yishuai and Zhu, Yunfeng and Shi, Chao and Zhang, Guanhua and Wang, Jianzhong and Zhang, Xiaolu},
journal = {PVLDB},
series = {{VLDB} '24},
volume = {17},
number = {5},
pages = {994--1006},
doi = {10.14778/3641204.3641210},
url = {https://doi.org/10.14778/3641204.3641210},
year = {2024}
}Incoming Citations (Sorted by Pagerank)
Showing 3 of 3 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 10,203 | Rebirth-Retire: A Concurrency Control Protocol Adaptable to Different Levels of Contention | 2025 | VLDB | 5.0609154e-05 |
| 10,654 | LeaseGuard: Raft Leases Done Right | 2026 | SIGMOD | 4.9793485e-05 |
| 11,015 | Vodka: Rethink Benchmarking Philosophy in HTAP Systems | 2026 | VLDB | 4.9793485e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 5 of 5 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 185 | CockroachDB: The Resilient Geo-Distributed SQL Database | 2020 | SIGMOD | 0.00026072278 |
| 234 | TiDB: A Raft-based HTAP Database | 2020 | VLDB | 0.00023765806 |
| 2,812 | OceanBase: A 707 Million tpmC Distributed Relational Database System | 2022 | VLDB | 7.9811649e-05 |
| 3,435 | Implementation of Cluster-wide Logical Clock and Causal Consistency in MongoDB | 2019 | SIGMOD | 7.3016365e-05 |
| 6,111 | Taking Omid to the Clouds: Fast, Scalable Transactions for Real-Time Cloud Analytics | 2018 | VLDB | 5.8831087e-05 |
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