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Road to Multi-Arch

Motivation With the release of Apples M1 chip, ARM became accessible for a brought audience. AWS published their plans to spin up some clusters with ARM chips at their heart (better known as AWS Graviton3). They promise a 40% better price-performance … Read More

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Exploration: Using Vector With Stackable Operators And Products

Centralized logging is the foundation of observability in a Kubernetes cluster. If you want to understand what’s happening across distributed workloads, it quickly becomes a pain to hunt down outputs of different interacting parts. We want to provide our users … Read More

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The Stackable spark-on-k8s operator

The Stackable Data Platform is a distribution for Big Data software running on-premise or in the cloud. Open-source, written in Rust and designed for use in Kubernetes environments, Stackable operators are available for many popular Big Data components and allow … Read More

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Stumbling Over ‘ubi-8-appstream’ In ‘ubi8/ubi-minimal’

Today our Docker image builds started crashing out of the blue. The following error message showed up: The offending line, was calling microdnf with –enablerepo=ubi-8-appstream. Suddenly, images which were building just fine in the morning, stopped doing so. This might be a very … Read More

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Deleting Custom Resources in a Kubernetes Namespace

The custom resources I thought I deleted were in fact around all this time!? When working with Kubernetes and custom resources, you need to be able to go back to a clean state. Unfortunately, almost all kubectl commands are ignoring … Read More

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7 Useful CLI Tools You Can Give a Try

What CLI tools do you LOVE to use? Is there something you wouldn’t want to miss? I asked this question in the Stackable Slack a few days ago, got some cool replies and wanted to share them on. Interested in … Read More

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The Potential of Data Mesh [Whitepaper]

What possibilities does data mesh offer? What does it actually bring into my company and how can a data mesh project actually work? Everyone is already talking about data mesh as an alternative to the classic DWH or data lake. Together with Bitkom e. V., I was one of the authors of the white paper “Data Mesh – Finding and Using Data Potential” and had the opportunity to look at these and many other questions about the topic. You can find my remarks on the topic of architecture here; you can download the entire guide from Bitkom e. V. free of charge. Please note: The guide is only available in German. … Read More

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The Stackable Security Story

Both Lars and I have always had a special place in our heart for security throughout our consulting careers. It might have to do with being German, but most probably it was simply caused by being burned too often by … Read More

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The Stackable Docathon: building a data pipeline

Last month we ran our first ever Documentation-Hackathon – or “Docathon” – at Stackable. The result is a guide showing how to build a simple data pipeline which can be found here: As anyone who has been involved in software … Read More

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