Behind the Scenes: Building a Robust Ads Event Processing Pipeline | by Netflix Technology Blog | May, 2025

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Behind the Scenes: Building a Robust Ads Event Processing Pipeline | by Netflix Technology Blog | May, 2025


Key elements on occasion processing pipeline –

Ads Event Publisher: This centralized system is chargeable for accumulating advertisements telemetry and offering unified advert occasions to the advertisements engineering groups. It helps varied capabilities corresponding to measurement, finance/billing, reporting, frequency capping, and sustaining a vital suggestions loop again to the advert server.

Realtime Consumers

  1. Frequency Capping: This system tracks impressions for every marketing campaign, profile, and some other frequency capping parameters arrange for the marketing campaign. It is utilized by the Ad Server throughout every advert choice to make sure advertisements are served with frequency limits.
  2. Ads Metrics: This element is a Flink job that transforms uncooked information to a set of dimensions and metrics, subsequently writing to Apache Druid OLAP database. The streaming information is additional backed by an offline course of that corrects any inaccuracy throughout streaming ingestion and offering correct metrics. It supplies real-time metrics to evaluate the supply well being of campaigns and applies price range capping performance.
  3. Ads Sessionizer: An Apache Flink job that consolidates all occasions associated to a single advert into an Ad Session. This session supplies real-time details about advert playback, providing important enterprise insights and reporting. It is a vital job that helps all downstream analytical and reporting processes.
  4. Ads Event Handler: This service repeatedly sends data to advert distributors by studying monitoring data from advert occasions, making certain correct and well timed information alternate.

Billing/Revenue: These are offline workflows designed to curate impressions, supporting billing and income recognition processes.

Ads Reporting & Metrics: This service powers reporting module for our account managers and supplies a centralized metrics API that assist assess the supply of a marketing campaign.

This was a large multi-quarter effort throughout totally different engineering groups. With in depth planning (kudos to our TPM crew!) and coordination, we have been capable of iterate quick, construct a number of companies and execute the imaginative and prescient above, to energy our in-house advertisements expertise platform.

Conclusion

These techniques have considerably accelerated our potential to launch new capabilities for the enterprise.

  • Through our partnership with Microsoft, Display Ad occasions have been built-in into the brand new pipeline for reusability and making certain when launching via Netflix advertisements techniques, all use-cases have been lined.
  • Programmatic shopping for capabilities now assist the alternate of quite a few trackers and dynamic bid costs on impression occasions.
  • Sharing opt-out indicators helps guarantee privateness and compliance with GDPR rules for Ads enterprise in Europe, supporting correct reporting and measurement.
  • New occasion sorts like Ad clicks and scanning of QR codes occasions additionally move via the pipeline, making certain all metrics and reporting are tracked persistently.

Key Takeways

  • Strategic, incremental evolution: The improvement of our advertisements occasion processing techniques has been a fastidiously orchestrated journey. Each iteration was meticulously deliberate by addressing current challenges, anticipating future wants, and showcasing teamwork, planning, and coordination throughout varied groups. These pillars have been basic to the success of this journey.
  • Data contract: A transparent information contract has been pivotal in making certain consistency in interpretation and interoperability throughout our techniques. By standardizing the information fashions, and establishing a transparent information alternate between advert serving, and centralized occasion assortment, our groups have been capable of iterate at distinctive pace and proceed to ship many launches on time.
  • Separation of considerations: Consumers are relieved from the necessity to perceive every supply of advert telemetry or handle updates and migrations. Instead, a centralized system handles these duties, permitting customers to concentrate on their core enterprise logic.

We have an thrilling record of tasks on the horizon. These embrace managing advert occasions from advertisements on Netflix stay streams, de-duplication processes, and enriching information indicators to ship enhanced reporting and insights. Additionally, we’re advancing our Native Ads technique, integrating Conversion API for improved conversion monitoring, amongst many others.

This is certainly not a season finale; it’s only the start of our journey to create a best-in-class advertisements expertise platform. We warmly invite you to share your ideas and feedback with us. If you’re thinking about studying extra or turning into part of this revolutionary journey, Ads Engineering is hiring!

Acknowledgements

A particular due to our wonderful colleagues and groups who helped construct our foundational post-impression system: Simon Spencer, Priyankaa Vijayakumar, Indrajit Roy Choudhury; Ads TPM crew — Sonya Bellamy; the Ad Serving Team — Andrew Sweeney, Tim Zheng, Haidong Tang and Ed Barker; the Ads Data Engineering Team — Sonali Sharma, Harsha Arepalli, and Wini Tran; Product Data Systems — David Klosowski; and your complete Ads Reporting and Measurement crew!

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