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Mostly-Optimistic Concurrency Control for Highly Contended Dynamic Workloads on a Thousand Cores

Summary: MOCC: mostly-optimistic CC for highly contended workloads on thousands of cores. It uses a cancellable reader-writer spinlock and a serializable protocol enabling acquire/release/reacquire in any order without heavy coordination, avoiding clobbered reads and delivering 8x–23x gains over OCC/pessimistic (17M TPS TPC-C, 110M+ TPS YCSB no-conflict). (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
h8cc4c49745a5fb42
Venue
VLDB
Year
2017
Pagerank
0.00011768531
Overall Rank
1,161 | 92.20%
DOI
10.14778/3015274.3015276

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@article{wang_vldb17,
        title = {{Mostly-Optimistic Concurrency Control for Highly Contended Dynamic Workloads on a Thousand Cores}},
        author = {Wang, Tianzheng and Kimura, Hideaki},
        journal = {PVLDB},
        series = {{VLDB} '17},
        volume = {10},
        number = {2},
        pages = {49--60},
        doi = {10.14778/3015274.3015276},
        url = {https://doi.org/10.14778/3015274.3015276},
        year = {2017}
}

Incoming Citations (Sorted by Pagerank)

Showing 42 of 42 citing papers.

Rank Citing Paper Year Venue Pagerank
786 Cicada: Dependably Fast Multi-Core In-Memory Transactions 2017 SIGMOD 0.00013988699
1,039 Blurring the Lines between Blockchains and Database Systems: the Case of Hyperledger Fabric 2019 SIGMOD 0.00012367714
1,071 High Performance Transactions via Early Write Visibility 2017 VLDB 0.0001217253
1,339 The End of a Myth: Distributed Transactions Can Scale 2017 VLDB 0.00010975458
1,352 Improving Optimistic Concurrency Control Through Transaction Batching and Operation Reordering 2019 VLDB 0.0001093254
1,693 Aria: A Fast and Practical Deterministic OLTP Database 2020 VLDB 9.8567076e-05
2,135 A Transactional Perspective on Execute-order-validate Blockchains 2020 SIGMOD 8.9903149e-05
2,742 Evaluating Persistent Memory Range Indexes 2020 VLDB 8.0681227e-05
3,047 Handling Highly Contended OLTP Workloads Using Fast Dynamic Partitioning 2020 SIGMOD 7.7124257e-05
3,062 Opportunities for Optimism in Contended Main-Memory Multicore Transactions 2020 VLDB 7.6920087e-05
3,834 Releasing Locks As Early As You Can: Reducing Contention of Hotspots by Violating Two-Phase Locking 2021 SIGMOD 6.993185e-05
3,861 GaccO - A GPU-accelerated OLTP DBMS 2022 SIGMOD 6.9656048e-05
3,898 Analyzing the Impact of System Architecture on the Scalability of OLTP Engines for High-Contention Workloads 2018 VLDB 6.936402e-05
4,022 STAR: Scaling Transactions through Asymmetric Replication 2019 VLDB 6.8496651e-05
4,201 The Case for Distributed Shared-Memory Databases with RDMA-Enabled Memory Disaggregation 2023 VLDB 6.7375318e-05
4,362 Latch-free Synchronization in Database Systems: Silver Bullet or Fool's Gold? 2017 CIDR 6.6380763e-05
4,435 Adaptive Concurrency Control: Despite the Looking Glass, One Concurrency Control Does Not Fit All 2017 CIDR 6.6007678e-05
4,761 Accelerating Analytical Processing in MVCC using Fine-Granular High-Frequency Virtual Snapshotting 2018 SIGMOD 6.4302502e-05
5,314 Chiller: Contention-centric Transaction Execution and Data Partitioning for Modern Networks 2020 SIGMOD 6.1842459e-05
5,704 Long-lived Transactions Made Less Harmful 2020 SIGMOD 6.030002e-05
6,001 Fine-Grained Re-Execution for Efficient Batched Commit of Distributed Transactions 2023 VLDB 5.9185185e-05
6,180 Plor: General Transactions with Predictable, Low Tail Latency 2022 SIGMOD 5.8595351e-05
6,380 When Private Blockchain Meets Deterministic Database 2023 SIGMOD 5.8072595e-05
6,412 Adaptive Optimistic Concurrency Control for Heterogeneous Workloads 2019 VLDB 5.7933224e-05
6,535 C5: Cloned Concurrency Control that Always Keeps Up 2023 VLDB 5.7539138e-05
7,005 Zen: a High-Throughput Log-Free OLTP Engine for Non-Volatile Main Memory 2021 VLDB 5.6236238e-05
7,049 Polaris: Enabling Transaction Priority in Optimistic Concurrency Control 2023 SIGMOD 5.6132108e-05
7,458 Janus: Transactional Processing of Navigational and Analytical Graph Queries on Many-core Servers 2017 CIDR 5.5217913e-05
7,889 An Analysis of Concurrency Control Protocols for In-Memory Databases with CCBench 2020 VLDB 5.432861e-05
8,642 OptiQL: Robust Optimistic Locking for Memory-Optimized Indexes 2023 SIGMOD 5.2957446e-05
8,742 A Study of Database Performance Sensitivity to Experiment Settings 2022 VLDB 5.2882685e-05
8,999 Online Schema Evolution is (Almost) Free for Snapshot Databases 2023 VLDB 5.2400195e-05
9,295 A Hybrid Approach to Integrating Deterministic and Non-deterministic Concurrency Control in Database Systems 2025 VLDB 5.1992306e-05
9,727 Tabular: Efficiently Building Efficient Indexes 2025 VLDB 5.1349531e-05
9,869 Bonspiel: Low Tail Latency Transactions in Geo-Distributed Databases 2025 VLDB 5.1176637e-05
10,203 Rebirth-Retire: A Concurrency Control Protocol Adaptable to Different Levels of Contention 2025 VLDB 5.0609154e-05
10,224 Modeling Concurrency Control as a Learnable Function 2026 SIGMOD 5.0571508e-05
10,549 Brook-2PL: Tolerating High Contention Workloads with A Deadlock-Free Two-Phase Locking Protocol 2026 SIGMOD 4.9793485e-05
10,668 Performant Synchronization in Geo-Distributed Databases 2026 SIGMOD 4.9793485e-05
10,750 Operation-Aware Hybrid Locking for Modern In-Memory Indexes 2026 VLDB 4.9793485e-05
11,267 Oze: Decentralized Graph-based Concurrency Control for Long-running Update Transactions 2025 VLDB 4.9793485e-05
12,279 The Next 700 Transaction Processing Engines 2017 SIGMOD 4.9793485e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 19 of 19 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank Cited Paper Year Venue Pagerank
19 A Critique of ANSI SQL Isolation Levels 1995 SIGMOD 0.00058781151
22 Distributed GraphLab: A Framework for Machine Learning and Data Mining in the Cloud 2012 VLDB 0.00055962491
35 Hekaton: SQL Server’s Memory-Optimized OLTP Engine 2013 SIGMOD 0.00048001919
123 Schism: a Workload-Driven Approach to Database Replication and Partitioning 2010 VLDB 0.00030762995
221 ARIES/KVL: A Key-Value Locking Method for Concurrency Control of Multiaction Transactions Operating on B-Tree Indexes 1990 VLDB 0.00024274803
237 Serializable Isolation for Snapshot Databases 2008 SIGMOD 0.00023660039
445 Staring into the Abyss: An Evaluation of Concurrency Control with One Thousand Cores 2015 VLDB 0.00018176701
542 FOEDUS: OLTP Engine for a Thousand Cores and NVRAM 2015 SIGMOD 0.0001665543
636 ERMIA: Fast Memory-Optimized Database System for Heterogeneous Workloads 2016 SIGMOD 0.00015360975
756 Rethinking serializable multiversion concurrency control 2015 VLDB 0.00014210991
1,026 Aether: A Scalable Approach to Logging 2010 VLDB 0.00012423267
1,083 High Performance Transactions in Deuteronomy 2015 CIDR 0.00012113053
1,297 Improving OLTP Scalability using Speculative Lock Inheritance 2009 VLDB 0.00011129439
1,334 TicToc: Time Traveling Optimistic Concurrency Control 2016 SIGMOD 0.00010995094
1,432 Lightweight Locking for Main Memory Database Systems 2013 VLDB 0.00010679703
1,526 Key Range Locking Strategies for Improved Concurrency 1993 VLDB 0.0001035143
2,276 Design Principles for Scaling Multi-core OLTP Under High Contention 2016 SIGMOD 8.7087896e-05
2,800 An Evaluation of the Advantages and Disadvantages of Deterministic Database Systems 2014 VLDB 7.9926474e-05
3,301 To Lock, Swap, or Elide: On the Interplay of Hardware Transactional Memory and Lock-Free Indexing 2015 VLDB 7.4436949e-05
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