In Internet architectures, data systems are typically categorized into source-of-truth systems that serve as primary stores for the user-generated writes, and derived data stores or indexes which serve reads and other complex queries. The data in these secondary stores is often derived from the primary data through custom transformations, sometimes involving complex processing driven by business logic. Similarly data in caching tiers is derived from reads against the primary data store, but needs to get invalidated or refreshed when the primary data gets mutated. A fundamental requirement emerging from these kinds of data architectures is the need to reliably capture, flow and process primary data changes.

We have built Databus, a source-agnostic distributed change data capture system, which is an integral part of LinkedIn's data processing pipeline. The Databus transport layer provides latencies in the low milliseconds and handles throughput of thousands of events per second per server while supporting infinite look back capabilities and rich subscription functionality. This paper covers the design, implementation and trade-offs underpinning the latest generation of Databus technology. We also present experimental results from stress-testing the system and describe our experience supporting a wide range of LinkedIn production applications built on top of Databus.

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Faria NPereira JAlonso AVilaça RKoning YNes N(2023)TiQuE: Improving the Transactional Performance of Analytical Systems for True Hybrid WorkloadsProceedings of the VLDB Endowment10.14778/3598581.359859816:9(2274-2288)Online publication date: 10-Jul-2023
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Wang YWu YLi CZheng PCao BSun YZhou FXu YWang YXie GFedorova ANarayanan DDi Luna GQuerzoni L(2023)CFS: Scaling Metadata Service for Distributed File System via Pruned Scope of Critical SectionsProceedings of the Eighteenth European Conference on Computer Systems10.1145/3552326.3587443(331-346)Online publication date: 8-May-2023
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Index Terms

All aboard the Databus!: Linkedin's scalable consistent change data capture platform
1. Information systems
  1. Information retrieval
    1. Search engine architectures and scalability
      1. Distributed retrieval
      2. Peer-to-peer retrieval
  2. Information storage systems
    1. Storage architectures
      1. Distributed storage

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SoCC '12: Proceedings of the Third ACM Symposium on Cloud Computing

October 2012

325 pages

ISBN:9781450317610

DOI:10.1145/2391229

Program Chairs:
Michael Carey
UC Irvine
,
Steven Hand
University of Cambridge

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https://dl.acm.org/doi/10.14778/3598581.3598598
Wang YWu YLi CZheng PCao BSun YZhou FXu YWang YXie GFedorova ANarayanan DDi Luna GQuerzoni L(2023)CFS: Scaling Metadata Service for Distributed File System via Pruned Scope of Critical SectionsProceedings of the Eighteenth European Conference on Computer Systems10.1145/3552326.3587443(331-346)Online publication date: 8-May-2023
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Kleppmann MMargara AValle E(2021)Thinking in eventsProceedings of the 15th ACM International Conference on Distributed and Event-based Systems10.1145/3465480.3467835(15-24)Online publication date: 28-Jun-2021
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