Writing tests is time consuming and can contain many repetitive tasks like setting up the specific configuration and cleaning the context after the test. To best follow the DRY (Don't Repeat Yourself) principle, I started implementing JUnit4 rules. In this blog post, I will show how I migrated a JUnit4 rule to JUnit5.

Today we are tackling a common problem in IT. You have data that contain unique ids. Many use cases in the Elastic Stack require additional data.

In Pair Programming sessions, we often exchange tips and tricks. Regardless of experience and title, there is a decent chance for new insights. Today in this blog post, I share my ideas, how to deal with large structures of data encoded in JSON.

Recently we faced an "interesting" problem: We received seemingly random reports for failing logins to our customer's website. Only after a lot of experimenting we could narrow the problem down to specific mobile devices. This forced us to go a level deeper and investigate the problem on the protocol level.

Since Kibana v6.4.0 there are significant improvements and enhancements. Under all these enhancements, a hidden gem and long-awaited feature is finally available: the Static Lookup Field Formatter.