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An uber-JAR, also known as a fat JAR or JAR with dependencies, is a JAR file that contains not only a Java program but embeds its dependencies as well, and might also contain the web application that needs to be executed. In this article, we’ll describe the different variants of the artifact and the advantages and drawbacks it has. What …

Deep Netts is a deep learning development toolkit that enables Java developers to easily add modern AI to their apps. It provides a deep learning IDE and a Java-native deep learning library for embedding AI models into Java apps. In part 1, we looked at the Deep Netts Community Edition, which is capable of solving basic machine learning problems, and …

This article aims to describe the main steps required to install and run TornadoVM on Apple M1 Pro. Steps Install Prerequisites Run TornadoVM Installer Execute Unit Tests Performance Evaluation: Running Matrix-Multiplication on Apple M1 GPU 1. Install Prerequisites To install TornadoVM, it is necessary to have some packages installed. For instance, you will have to install Maven and wget in …

API Gateways in general, and Apache APISIX in particular, provide a single entry point into one’s information system. This architecture allows for managing load balancing and failover over similar nodes. For example, here’s how you can create a route balanced over two nodes in Apache APISIX: curl http://localhost:9080/apisix/admin/routes/1 -H ‘X-API-KEY: edd1c9f034335f136f87ad84b625c8f1’ -X PUT -i -d ‘{ “uri”: “/*”, “upstream”: { …

In this series, I cover a lot of magical tools and git bisect is probably the best example of such magic. The hardest part in debugging is knowing the general area of the bug… and bisect literally shines a light on the specific commit that caused it! Before we begin, let’s make one thing clear: bisect is a tool for …

© Shutterstock / everything possible Apache Cassandra is a rock-solid choice for managing IoT and time series data at scale. The most popular use case of storing, querying and analyzing time series generated by IoT devices in Cassandra is well-understood and documented. In general, a time series is stored and queried based on its source IoT device. However, there exists another …

For decades, many companies have relied on relational databases to store, protect, and access their data. SQL databases, in particular, worked well for a long time and still do for many use cases. But, today, there is a wide range of situations where SQL databases can no longer satisfy the needs of modern enterprises, especially those that have made the …

Introduction Observability is paramount to every distributed system and it’s becoming increasingly complicated in a cloud native world where we might deploy multiple ephemeral clusters and we want to keep their metrics beyond their lifecycle span. This article aims at cloud native engineers that face the challenge of observing multiple Azure Kubernetes Clusters (AKS) and need a flexible, stateless solution, …

I tried to deploy a Vaadin application to Google Cloud App Engine. It was not as straightforward as expected, so I want to share my findings. The example project is available on GitHub: https://github.com/simasch/vaadin-appengine-demo The Vaadin Application First, I’ve created a new Vaadin application: https://start.vaadin.com Then I did a production build: mvn package -Pproduction That will generate an executable JAR …