How (not) to sink a data stream to files? Journeys from Kafka to Parquet.

By Gabor Hermann on 30-07-2018
Category: Development Tags: Java Scalability BigData Open source distributed

Last year the Measuring 2.0 team at bol.com has started measuring user behavior on the bol.com website. Of course, we wanted to make the data widely accessible within the whole organization.

SWAPs: From monolith to small web applications

By Elinor Bakker on 19-06-2018
Category: Architecture, UX, Development Tags: Architecture Microservices Scalability UX Partners bol.com devops YBIYRIYLI

Web applications usually start small and loveable, but gradually become larger and larger as more people work on them and front-end technologies move on. If you’re not careful they can potentially end up as the one thing no-one wants to touch anymore and cause a lot of frustrations for agile teams and business innovators alike.

Services & Autonomy: the one can’t live without the other

By Frederieke Ubels on 20-07-2017
Category: Development Tags: Architecture Microservices Scalability devops Autonomy

What started out as a means of technical scalability turned out to be the most important driver of team autonomy – and vice versa. This is our story of Backspin, Rabbits and the Man on the Moon.

Big, bigger, scalable

By ir. drs. Niels Basjes on 22-03-2017
Category: Architecture, Development Tags: Scalability BigData

At bol.com we service millions of products to millions of customers, resulting in billions of pages each year. We want to create the most effective service to our visitors we possibly can. So we spent a lot of time preparing the content, monitoring the systems and analyzing how we can support our customers better in finding what they really want.

Nextbuild 2017

On: 20 May 2017 at: High Tech Campus Eindhoven
Category: Events Tags: Event Scalability BigData

On The NextBuild Conference I will host a talk about Designing scalable data intensive applications. At bol.com the datavolumes we need to process exceed the capacity of any single computer. As a consequence we are forced to think about designing our data intensive applications in such a way that they can be run on a cluster of systems and grow to handle much more that the volumes of today. In this talk I will show the main design concepts that bol.com has been using for more than 8 years that are needed to…