In this article we will see how we can export metrics from Spark Java so that Prometheus can scrape them for application monitoring purposes.
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zefaker is a command-line tool that is especially useful for generating test files for when you're developing or testing data pipelines. It enables you to generate random data into SQL, CSV, Excel and JSON files via a simple Groovy script.
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In this guide you will learn how to combine a VueJS front-end with a Java backend. We will achieve this using a custom vue-cli configuration and directory structure. You will also see how to use a maven plugin to help build the Vue app during the package phase of the maven build process, so that you do not have to run two commands to build the final application, which we will bundle as an uber jar.
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In this short guide you are going to see how to write to multiple files at-once in Java. The technique you will see here will allow you to write the same data to multiple output streams in one go, which will keep your code shorter, readable and safer from errors that can come through copy-and-pasting.
The rationale First of all, why would you want to write to multiple output streams at once?
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