Community Spotlight: smart advertising from Sage+Archer + Apache Druid

May 11, 2021
Peter Marshall

Out-of-home advertising has changed. Gone are static, uncompromisingly homogenous posters, replaced instead with bright and fluid installations. Installations that make smart decisions about what and when to show content to reach the right people with the right message. Advertisers have unleashed a whirlwind of creativity in physical and digital spaces, assured their efforts – and investments – will be rewarded with targeted visibility and higher engagement.

Sage+Archer meets Apache Druid

In Germany, the Netherlands and the United Kingdom, 70% of all digital screens for “out-of-home” advertising are connected to a single product: Sage+Archer. They reach millions of people through JCDecaux, Axel Springer, the Guardian, and Bauer (to name but a few), partnering with supply-side platforms that include Google and Rubicon (a fellow Apache Druid user).

So the Apache Druid Community Team at Imply were grateful to spend time with Edwin Metselaar, the co-founder and technology lead at Sage+Archer to find out more about their use of Apache Druid.

“We were one of the earliest adopters of Apache Druid. Since we picked it up in 2015, all data analysis has the Druid database as its source – both mobile and digital out-of-home advertising.

“It’s the single source of truth.”

Demand-side platform customers are renowned for being themselves demanding. Sage+Archer have spent significant effort creating the perfect user experience, not just the look and feel, but the accuracy and freshness of the data it presents.

“That’s what our customers expect!”

And no wonder: Sage+Archer’s client list includes Disney, Ben & Jerry’s and citizenM.

The Sage+Archer deployment

Behind-the-scenes, Druid isn’t just fed high-reliability data in bulk overnight (Hadoop), it’s also constantly fed real-time data from event streams (Apache Kafka) – a touch of data magic that keeps customers – and Sage+Archer themselves – ahead of their competitors.

“It was very easy to connect Kafka and Druid. It’s very easy to say, ‘okay, let’s connect to Kafka and read out this topic from this point’. And off it goes!”

Apache Druid is hosted in a hybrid way – a combination of local and cloud infrastructure. There is a mix of OpenStack resources and Google Cloud storage. Despite the latency you may well expect this to introduce, Druid’s behind-the-scenes processes ensure query performance is unaffected.

So critical is Druid to their operations – and to the success of their own customers – that all of the Apache Druid database is fully protected against disaster.

“It’s where we base our campaigns. It’s where we optimise pricing. It’s the data behind dashboards. Everything. All the reporting we do is powered by the Druid database.”

Up front lies a custom interface together with Metabase, giving customers a hyper-fresh and flexible data experience that modern decision makers need. Meanwhile, engineers have the freedom to use Druid’s own in-built SQL interface and APIs when more technical work demands it.

Edwin remains an active participant in the community and, like many adoptees, continues to look for ways to optimise and configure their deployment to squeeze out every possible ounce of performance. We thank the team at Sage+Archer for letting us know about their journey!

*      *      *

Email the community team at to schedule your own Community Spotlight, to get the latest information on community events across the world, to hear about speaking opportunities, and to find out how to get your company’s name in lights on Apache Druid’s Powered By page!

Other blogs you might find interesting

No records found...
Jun 12, 2024

AWS IoT Core and Imply: Simplifying IoT Management and Data Analytics

The Internet of Things (IoT) is rapidly expanding, with IoT connections growing by 18% in 2022. AWS IoT Core, used by giants like NASA and Volkswagen, offers robust solutions for managing this surge. Discover...

Learn More
May 13, 2024

Tuning into Success: Streaming Music Done the Imply Way

Learn how a top streaming music service uses Imply to provide visibility into audience engagement and other key metrics.

Learn More
May 07, 2024

Imply Polaris is now on Microsoft Azure

We are thrilled to announce that Imply Polaris is now available on Microsoft Azure! Now, organizations can power their real-time analytics applications with Druid-powered Polaris clusters hosted in Microsoft...

Learn More

Let us help with your analytics apps

Request a Demo