Thread dumps are vital artifacts to diagnose CPU spikes, deadlocks, memory problems, unresponsive applications, poor response times, and other system problems.
Using rake db:seed, which is already built into Rails, may seem preferable to using a custom rake task like rake dev:prime. However there's a time and place for both.
You may want to create applications for a specific device. Before you break out your IDE and start tinkering with hardware, let’s take a quick tour of Bluetooth, Wi-Fi, NFC and mobile data to learn how these technologies work, and which applications each one is best suited for.
Custom argument matchers and custom answer behavior allow us to use Mockito to mock complex and responsive behavior, making for highly realistic tests.
Learn how to set up an event-driven microservices architecture using Vert.x's Verticle class. This introductory post covers how to use and configure Vert.x.
So you've begun the journey to devops- you're breaking down your team silos and trying to deploy more frequently. But how do you know the whole process is functioning properly?
This quick example demonstrates the usage of Docker Compose co-ordinating an Oracle NoSQL container and a dependent container running its (Java) client.
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