more and more
Mesos vs. Kubernetes 1. Overview In this tutorial, we’ll understand the basic need for a container orchestration system. We’ll evaluate the desired characteristic of such a system. From that, we’ll try to compare two of the most popular container orchestration systems in use today, Apache Mesos and Kubernetes. 2. Container… Continue Reading mesos-kubernetes-comparison
getdocs
Introduction to Chaos Monkey 1. Introduction In this tutorial, we’re going to talk about Chaos Monkey for Spring Boot. This tool helps us introduce some of the principles of chaos engineering into our Spring Boot web applications by adding latency to our REST endpoints, throwing errors, or even killing an app.… Continue Reading spring-boot-chaos-monkey
getdocs
Introducing nudge4j 1. Overview nudge4j allows developers to see the impact of any operation straight-away and provides an environment in which they can explore, learn, and ultimately spend less time debugging and redeploying their application. In this article, we will explore what nudge4j is, how it works, and how any… Continue Reading nudge4j
getdocs
Monitoring Disk Usage and Other Metrics in Java 1. Overview In this quick tutorial, we’ll be discussing how to monitor key metrics in Java. We’ll focus on disk space, memory usage, and thread data – using only core Java APIs. In our first example, we’ll make use of the File… Continue Reading java-metrics
getdocs
Quick Guide to Micrometer 1. Introduction Micrometer provides a simple facade over the instrumentation clients for a number of popular monitoring systems. Currently, it supports the following monitoring systems: Atlas, Datadog, Graphite, Ganglia, Influx, JMX and Prometheus. In this article, we’ll introduce the basic usage of Micrometer and its integration… Continue Reading micrometer
getdocs
Introduction to Apache Spark 1. Introduction Apache Spark is an open-source cluster-computing framework. It provides elegant development APIs for Scala, Java, Python, and R that allow developers to execute a variety of data-intensive workloads across diverse data sources including HDFS, Cassandra, HBase, S3 etc. Historically, Hadoop’s MapReduce prooved to be… Continue Reading apache-spark
getdocs
Creating and Configuring Jetty 9 Server in Java 1. Overview In this article, we’ll talk about creating and configuring a Jetty instance programmatically. Jetty is an HTTP server and servlet container designed to be lightweight and easily embeddable. We’ll take a look at how to setup and configure one or… Continue Reading jetty-java-programmatic
getdocs
Gatling vs JMeter vs The Grinder: Comparing Load Test Tools DevOps Testing 1. Introduction Choosing the right tool for the job can be daunting. In this tutorial, we’ll simplify this by comparing three web application load testing tools – Apache JMeter, Gatling, and The Grinder–against a simple REST API. 2.… Continue Reading gatling-jmeter-grinder-comparison
getdocs
Create a Build Pipeline with Travis CI 1. Introduction In modern software development, the term pipeline gets used a lot. But what is it? Generally speaking, a build pipeline is a set of automated steps that move code from development to production. Build pipelines are great for implementing continuous integration… Continue Reading travis-ci-build-pipeline
getdocs
Create a Fat Jar App with Spring Boot 1. Introduction One of the more heart-warming developments of recent years has been an ongoing simplification of how web applications are deployed. Skipping all the boring intermediate historical steps, we arrive at today – when we can dispense with not only cumbersome… Continue Reading deployable-fat-jar-spring-boot
getdocs