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.

Making sense of the user agent string

By ir. drs. Niels Basjes on 30-03-2017
Category: Development Tags: Java Open source UX DataScience

Ever since I’ve started working for a WebAnalytics company in 2005 I’ve been working on problems related to making sense of web data. One of the most difficult elements in this type of analysis is making sense of the user agent.
Very often the raw web data I work with is stored in Apache HTTPD access log files that have been compressed using gzip.

GOTO Amsterdam 2017

On: 14 Jun 2017 at: Beurs van Berlage, Amsterdam
Category: Events Tags: Microservices Open source Hystrix Resilience

Attend “Resilience engineering in a microservice landscape” by Maurice Zeijen to learn how we at bol.com achieve fault tolerance.