The Wikimedia Analytics Engineering team manages multiple systems, all gravitating around a big (for our standards) Hadoop cluster. This post describes our path to changing our Hadoop distribution in a single day, together with the lessons learned while doing it.
In the first of three posts about the implementation of Single Sign On (SSO). This post looks at the original landscape of Wikimedia’s web-based services, summarizes requirements for a new SSO provider, looks at existing FLOSS solutions, and explains why Apereo CAS was chosen.
In a recent project, the Android app team decided to improve one of their core experiences: searching for articles on Wikipedia. Our goal was to make the discovery process for readers more intelligent, personalized and efficient to present the right result at the right time.
This article describes the methodology used by the Wikimedia Foundation to monitor outages on Wikipedia around the world. These events are called anomalies and could be due to various causes, among them censorship.