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How to Get Started Using Apache Spark GraphX with Scala

Editor’s Note: Don’t miss our new free on-demand training course about how to create data pipeline applications using Apache Spark – learn more here. This post will help you get started using Apache Spark GraphX with Scala on the MapR Sandbox. GraphX is the Apache Spark component for graph-parallel computations, built upon a branch of mathematics called graph theory. It ...

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Autoscaling on Complex Telemetry

Autoscaling to meet system demand is one of the most important techniques for cloud deployments. Too many machines waste money, too few machines lose it. Autoscaling effectively is hugely important for a business as system size increases, but doing so is a challenge, owing to the nature of the tools available to us as engineers. In this article, I will ...

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Docker Flow: Blue-Green Deployment and Relative Scaling

Since the first time I laid my hands on Docker, I started writing scripts that I’ve been running as my continuous deployment flow. I ended up with Shell scripts, Ansible playbooks, Chef cookbooks, Jenkins Pipelines, and so on. Each of those had a similar (not to say the same) objective inside a different context. I realized that was a huge ...

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UI Developers! Choose Sensible Default Ordering!

Good decisions come from experience. Experience comes from making bad decisions. ― Mark Twain Today, let’s look at one piece of experience and how we can turn that into good decisions when implementing UI logic. Please, all UI developers read this. The bad decision When UI developers display tabular data, it is very common for the table to offer sorting ...

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Few maven tips and tricks

I was working on migrating an existing application that was using WebLogic Workshop (yes you read it right, using an IDE that is out of support) to maven. There were a few gotchas during the journey which i wanted to jot down here for anyone who might find it useful and specially for myself just as a reference. The overall ...

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Docker and Jenkins – Orchestrating Continuous Delivery

Past week I had the honour of speaking in Docker Barcelona Meetup about how to use Jenkins for doing typical Docker tasks like creating images, publishing them or having a trace of what has occurred on them. Finally I introduced the new (or not so new) Jenkins Pipeline plugin which allows you to create your continuous delivery pipeline by coding ...

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Gartner 2016 Magic Quadrant for Data Warehouse and Database Management Solutions for Analytics

We are excited to share with you that Gartner has named MapR a Visionary in the Gartner 2016 Magic Quadrant for Data Warehouse and Data Management Solutions for Analytics. Gartner evaluated 21 software vendors on 15 criteria for the quadrant. The MapR Converged Data Platform enables customers to leverage a real-time, reliable analytics platform for global data-driven applications. MAGIC QUADRANT ...

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Tools of the Trade for Performance and Load Testing

Solve App Problems 10x Faster with AppDynamics – Monitor production apps at code-level depth with minimal overhead. Start a FREE Trial! Your application is fast and scalable, right? How do you know? How often do you run performance or load tests? In this post I will give an overview of the tools of the trade for performance and load testing ...

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@Autowired and optional dependencies

@Autowired annotation makes our lives easier. It also can result in decreased amount of code if we are using it on properties of the class. We need neither constructors nor setter methods. It looks great at first glance, but the benefits rarely come without cost. Today I want to make you aware of the costs that have to be paid. ...

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