Micro service architectures come with many new challenges. In this article, we zoom into the challenge of data islands/consistency. You will learn why this problem arises and what it is. We go deeper into what Event Sourcing and CQRS are and how they might solve this problem, if applied correctly.

ArcelorMittal is the largest steel company in the world and produces high quality steel in various countries. In their pursuit of innovation and efficiency, they aimed to further automate their supply process. To achieve this, ArcelorMittal examined and reviewed their entire IT-landscape, ranging from their software to communication between business domains and with external partners. One of the resulting key decisions was to implement an API Management platform.

As I have always been interested in microservices, I was happy to join the microservices team within Archers. A proof of concept, exploring some of microservices’ key concepts, was already well underway. However, a solution to trace calls through the architecture in order to facilitate easier troubleshooting and system debugging was not yet present. In this blog article we introduce Elastic Stack as a solution to face these challenges.