Site Reliability Engineering; that’s music to my ears!

Site Reliability Engineering, or SRE, is seen by a lot of people as the next logical step in developing DevOps capabilities. SRE takes concepts from software engineering and puts them to use in an operations context. Over the last 3 years, we have been experimenting with SRE approaches and gradually integrating them into our DevOps way of working. In this episode, we share the experience we gained on our journey. Guests Bart Enkelaar; Software Engineer and SRE advocate in bol.com and external speaker and friend of the show (SRE during…

Chaos Engineering – every incident is a missed experiment

Peter Brouwers, Peter Paul van de Beek, on 4-03-2020
Category: Podcast Tags: devops Development Engineering Culture SRE Chaos Engineering

Chaos engineering… mostly in IT we are focused on structure and order. So, what is it and what can it bring? We go over the steps: Start by defining ‘steady state’ as some measurable output of a system that indicates normal behaviour Hypothesize that this steady-state will continue in both the control group and the experimental group Introduce variables that reflect real-world events like servers that crash, hard drives that malfunction, network connections that are severed, etc. Try to disprove the hypothesis by looking for a difference in steady-state between…

Prepare for the most wonderful time of the year – Season Readiness

Peter Brouwers, Peter Paul van de Beek, on 16-10-2019
Category: Podcast Tags: Peak Season Peak Sinterklaas Santa Claus Black Friday Singles Day Load testing SRE

In this episode we dive deeper into the IT aspects of a business topic. How to prepare for the peak load of the season – Black Friday, Sinterklaas, Christmas and even Singles Day is included. That is traditional a period where the load of basically everything increases dramatically. The slogan of the Season Readiness project that is preparing for all this is “Deliver careless holidays for our customer”. During this period every piece of the puzzle must fit. When load triples items like scaling, reliability, page load-times, predictability, up-times and…