A blog about current topics in computer science and media, maintained by students of the Hochschule der Medien Stuttgart (Stuttgart Media University).
Recent Posts
Open Source Batch and Stream Processing: Realtime Analysis of Big Data
Abstract Since the beginning of Big Data, batch processing was the most popular choice for processing large amounts of generated data. These existing processing technologies are not suitable to process the large amount of data we face today. Research works developed a variety of technologies that focus on stream processing. Stream processing technologies bring significant…
Distributed stream processing frameworks – what they are and how they perform
An overview on stream processing, common frameworks as well as some insights on performance based on benchmarking data
Isolation and Consistency in Databases
by Samuel Hack and Sebastian Wachter. Most people assume that the data coming from a database is correct. For most applications this is true, but when the databases are used in systems where the database is at its limit, this is no longer always the case. What happens if during a query of a value…
Autoscaling of Docker Containers in Google Kubernetes Engine
In this blog post we are taking a look at scaling possibilities within Kubernetes in a cloud environment. We are going to present and discuss various options that all have the same target: increase the availability of a service.
Attempts at automating the build process of a .NET WPF application with GitLab’s CI/CD pipeline
(Originally written for System Engineering and Management in 02/2020)
Kubernetes: from Zero to Hero with Kompose, Minikube, k3sup and Helm — Part 2: Hands-On
This is part two of our series on how we designed and implemented a scalable, highly-available and fault-tolerant microservice-based Image Editor. This part depicts how we went from a basic Docker Compose setup to running our application on our own »bare-metal« Kubernetes cluster.
Kubernetes: from Zero to Hero with Kompose, Minikube, k3sup and Helm — Part 1: Design
This is part one of our series on how we designed and implemented a scalable, highly-available and fault-tolerant microservice-based Image Editor. The series covers the various design choices we made and the difficulties we faced during design and development of our system. It shows how we set up the scaling infrastructure with Kubernetes and what…
IPFS: the InterPlanetary File System demystified
In this article we will explore IPFS, the InterPlanetary File System. IPFS is a system for storing and accessing files, websites and other kinds of data — just as the Web we enjoy using every day — but unlike the Web, IPFS is peer-to-peer based and automatically distributes its content across the network.
Using Gitlab to set up a CI/CD workflow for an Android App from scratch
Tim Landenberger (tl061) Johannes Mauthe (jm130) Maximilian Narr (mn066) This blog post aims to provide an overview about how to setup a decent CI/CD workflow for an android app with the capabilities of Gitlab. The blog post has been written for Gitlab Ultimate. Nevertheless, most features are also available in the free edition. The goal…
How to increase robustness of a large scale system by testing
When a distributed software system grows bigger and bigger, one will end up with a big amount of various components which all need to scale independently. In order to achieve these components working smooth together, it is necessary to figure out at which time a component needs to be scaled, to avoid having one component…
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