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Predictable Database Systems

Methods for diagnosing, bounding, and reducing performance variability under changing workloads.

DMon

Research question

Can a data system explain and bound how it will behave under changing workloads?

Approach

Measure sources of variance, model workload-resource relationships, diagnose anomalies, and design mechanisms that remain robust under uncertainty.

Publications

Project ↗
Cite
@article{79a739c2-69af-4e7a-9fab-9e1ca9ca9730,
  title = {Identifying the Major Sources of Variance in Transaction Latencies: Towards More Predictable Databases},
  author = {Jiamin Huang and Barzan Mozafari and Thomas F. Wenisch},
  journal = {Computing Research Repository},
  year = {2016}
}
Paper ↗Code ↗Project ↗
Cite
@inproceedings{593a1faa-d447-439a-aca4-9dc5a037630e,
  title = {Statistical Analysis of Latency Through Semantic Profiling},
  author = {Jiamin Huang and Barzan Mozafari and Thomas F. Wenisch},
  booktitle = {ACM European Conference on Computer Systems},
  year = {2017},
  doi = {10.1145/3064176.3064179}
}
Paper ↗Project ↗
Cite
@inproceedings{bd35a4d0-2624-465c-aabb-0cf0d78b3147,
  title = {DMon: Efficient Detection and Correction of Data Locality Problems Using Selective Profiling},
  author = {Tanvir Ahmed Khan and Ian Neal and Gilles Pokam and Barzan Mozafari and Baris Kasikci},
  booktitle = {USENIX Symposium on Operating Systems Design and Implementation},
  year = {2021}
}
Paper ↗Technical Report ↗Project ↗
Cite
@article{5d2dbe3f-c6e6-40c8-9a82-9f8e042ef4a2,
  title = {Contention-Aware Lock Scheduling for Transactional Databases},
  author = {Boyu Tian and Jiamin Huang and Barzan Mozafari and Grant Schoenebeck},
  journal = {Proceedings of the VLDB Endowment},
  year = {2018},
  doi = {10.1145/3187009.3177740}
}
Paper ↗Project ↗
Cite
@inproceedings{e6de4a52-07a5-47c5-8196-ace46d2a49c2,
  title = {SnappyData: A Unified Cluster for Streaming, Transactions and Interactive Analytics},
  author = {Barzan Mozafari and Jags Ramnarayan and Sudhir Menon and Yogesh Mahajan and Soubhik Chakraborty and Hemant Bhanawat and Kishor Bachhav},
  booktitle = {Conference on Innovative Data Systems Research},
  year = {2017}
}

DBSherlock: A Performance Diagnostic Tool for Transactional Databases

Dong Young Yoon, Ning Niu, Barzan Mozafari

SIGMOD 2016 · ACM SIGMOD International Conference on Management of Data

Paper ↗Code ↗Data ↗Project ↗
Cite
@inproceedings{a5460b19-8bff-4fd2-ae5e-d0ce7477454b,
  title = {DBSherlock: A Performance Diagnostic Tool for Transactional Databases},
  author = {Dong Young Yoon and Ning Niu and Barzan Mozafari},
  booktitle = {ACM SIGMOD International Conference on Management of Data},
  year = {2016},
  doi = {10.1145/2882903.2915218}
}
Paper ↗Project ↗
Cite
@inproceedings{cea59a03-38c4-4acb-bd2d-a41ecabe154a,
  title = {SnappyData: A Hybrid Transactional Analytical Store Built On Spark},
  author = {Jags Ramnarayan and Barzan Mozafari and Sumedh Wale and Sudhir Menon and Neeraj Kumar and Hemant Bhanawat and Soubhik Chakraborty and Yogesh Mahajan and Rishitesh Mishra and Kishor Bachhav},
  booktitle = {ACM SIGMOD International Conference on Management of Data},
  year = {2016},
  doi = {10.1145/2882903.2899408}
}
Paper ↗Code ↗Project ↗
Cite
@inproceedings{a55995d1-caca-4dbc-a138-c382c0a1e41c,
  title = {CliffGuard: A Principled Framework for Finding Robust Database Designs},
  author = {Barzan Mozafari and Eugene Zhen Ye Goh and Dong Young Yoon},
  booktitle = {ACM SIGMOD International Conference on Management of Data},
  year = {2015},
  doi = {10.1145/2723372.2749454}
}
Paper ↗Project ↗
Cite
@article{7c01b9d8-7064-406d-8eed-815b804063b2,
  title = {DBSeer: Pain-free Database Administration through Workload Intelligence},
  author = {Dong Young Yoon and Barzan Mozafari and Douglas P. Brown},
  journal = {Proceedings of the VLDB Endowment},
  year = {2015},
  doi = {10.14778/2824032.2824130}
}
Paper ↗Project ↗
Cite
@inproceedings{dbc38671-6184-4ab9-ba11-eb567fddba7b,
  title = {DBSeer: Resource and Performance Prediction for Building a Next Generation Database Cloud},
  author = {Barzan Mozafari and Carlo Curino and Samuel Madden},
  booktitle = {Conference on Innovative Data Systems Research},
  year = {2013}
}