Unspecified

Vagrant gives developers a uniform way of configuring their virtual environment, regardless of the underlying hypervisor chosen (eg. KVM/QEMU, VirtualBox, VMware, Hyper-V). It's also available for Mac OS and Windows making it easier to run virtual Linux environments from these platforms. Today we'll be creating a simple virtual machine, using the Eclipse Vagrant Tooling plugin. This will be shipping as part of the Linux Tools Project 4.2.0 release (along with the Docker Tooling). The Vagrant tooling is targeted to make...

It might be hard to believe, but it has been one year since Red Hat’s acquisition of FeedHenry, a leader in the enterprise mobile app development and mobile backend-as-a-service space. It’s been a busy and interesting year for our platform. As we continue to add great new enterprise-grade features, we’ve also been working on some important new enhancements in architecture, DevOps and cloud technologies. There’s more on that to come in the next few months, and as a recognition of...

The Virtual JBoss User Group had another successful session on November 10th. This time it was Martyn Taylor talking about Messaging for the Internet of Things (IoT). He is a senior software engineer at Red Hat and has over 7 years' experience working on cloud, middleware and messaging software. Martyn currently works on the Apache ActiveMQ suite of projects. The presentation gives you a brief intro into IoT in general and explains why it brings all kinds of challenges to...

Are you a developer or a sysadmin working on something open source that you want to share with the world? Do you know such a person? Submit a talk for DevConf.cz 2016, the largest open-source event in central Europe. February 2016 is approaching and that means preparations for the next DevConf.cz are fully on track! DevConf.cz (Developer Conference) is a free annual conference for all Linux and JBoss community developers, admins, and Linux users organized by Red Hat Czech Republic...

Have you heard about your local JBoss User Group (JBUG)? A JBUG is a group of people who share a common interest in JBoss technologies. They are organized and supported by the community and meet on a regular basis to discuss new technologies, development methodologies, interesting use cases, and other technical topics. The common goal is to provide education, help, and social events for the community and to promote open source. You can find a list of 38 JBUGs around...

Introduction This article aims to provide a step by step guide for setting up a remote Red Hat JBoss Data Grid (JDG) cluster as an HTTP session store for your state-full web applications running on Red Hat JBoss Enterprise Application Platform (EAP). I had recently explored this setup for another customer and figured it would be helpful to put together a set of detailed instructions for replicating this. This feature was recently released with the GA of JDG 6.5. Benefits...

If you've not heard, the second edition of the Open IoT Challenge is now accepting proposals from IoT developers who want to build great IoT solutions using open source and open standards. You have until November 23, 2015 to submit a proposal for the opportunity to win an IoT hardware starter kit. After that date, you have until February 26, 2016 to complete your solution and win great prizes. Submit your proposal using the following form . Need inspiration? Find...

This year at Red Hat Summit , I was part of a team whose objective was to create a running, IoT-focused system, at some scale (hundreds of beacons, millions of events), based on a real-world use case to demo live, on stage during the middleware keynote at Red Hat Summit. Our team chose the area of asset tracking, where important machines, tools or equipment (think mobile ultra-sound machines in hospitals) need to be located on demand and tracked for their...

What is "Tune-D" ? Tuned is a tuning profile delivery mechanism included in Red Hat Enterprise Linux. As demonstrated by D. John Shakshober (aka Shak) at Red Hat Summit , tuned improves performance for most workloads by quite a bit. What's a tuning profile, you ask? Using the throughput-performance profile (enabled by default in RHEL7) as an example: These settings tune RHEL for the datacenter , whether public cloud, or private. You can easily create your own profiles , too...

Red Hat is hosting a virtual event, “ Building data-driven solutions for the Internet of Things ,” at 11 a.m. EDT (New York City time) on Thursday, April 23, 2015. As people, devices, and machines increasingly connect to form broader and broader networks of “things,” all sending and receiving data to one another, being able to understand and leverage the Internet of Things (IoT) within the enterprise becomes an important task. This Red Hat virtual event covers various aspects of...

There seems to have been an explosion in the use of the term “microservices” recently. I’ve been peripherally aware of the concept for some time now, but it seems it first came to light with a fantastic collection of thoughts by Martin Fowler [1] - some great reading on the topic. This three-part post will not help you make a business case for rewriting your existing monolith as a series of microservices - for that, I’d recommend Rich Sharples’ writings...

The Internet of Things represents outstanding opportunities for innovation and opens the door to new development projects. At its core is the need for next-generation intelligent systems to collect, analyze, and communicate data into actionable information. Red Hat is in a unique position to help developers architect those systems and bring about the promises of the IoT. In fact, Red Hat technology is already embedded in intelligent systems throughout the world to enable IoT use cases such as Smart Cities...

Live migrating virtual machines is an interesting ongoing topic for virtualization: guests keep getting bigger (more vCPUs, more RAM), and demands on the uptime for guests keep getting stricter (no long pauses between a VM migrating from one host to another). This discussion will go through the simple design from the early days of live migration in the QEMU/KVM hypervisor, how it has been tweaked and optimized to where it is now, and where we're going in the future. It...

"As 2014 comes to a close, we asked Red Hat executives and subject matter experts to weigh in with their thoughts on what they expect to see happen in the world of tech in 2015. We’ve grouped predictions from these experts on many topics, including: Big data Business of tech Cloud computing Containers Developers and application development Internet of Things Mobile OpenStack Security Software-defined datacenter" Here are some of favorites: Open source has made software affordable and plentiful. Cloud computing...

The schedule of DevConf.cz 2015 (February 6th - 8th, Brno, Czech Republic) talks and workshops is now available. With 154 talks and workshops, there is a wide range of topics to appeal to nearly everyone: Kernel, JBoss, Networking, OpenShift, OpenStack, Security, Storage, Software Quality, System Management, Virtualization, Desktop, Containers, Databases, Hardware, Documentation, 3D Printing. The schedule has expanded from 6 parallel tracks (3 talk tracks and 3 workshop tracks) to 8 parallel tracks (5 talk tracks and 3 workshop tracks)...

After a very busy 2013 , 2014 did not disappoint! Here are our top 13 developer-related news items in 2014. Acquisition: Red Hat acquires FeedHenry , adds mobile Backend-as-a-Service (mBaaS) to the OpenShift xPaaS family Hot Topics: Containers - a LOT is going on. (If you're not up on them, do so asap.) Project Atomic Events: Inaugural DevNation conference featuring speakers from Docker, FaceBook, Google, NetFlix, Eclipse and many many more. Join use at DevNation 2015 . Mark Little shared...

Red Hat's David Egts has assembled this handy article on how to get started with open source. Open source code drives collaborative innovation from a larger pool of developers at a lower cost, which is why federal agencies are adopting the “open source first” model. In fact Sonny Hashmi, CIO of the General Services Administration, recently announced that implementing open source software is among his top priorities this year. So what’s the best way to increase your agency’s adoption of...

(See this article to install GCC 7 on Red Hat Enterprise Linux via yum .) Not every software bug has as serious consequences as seen in the Ariane 5 rocket crash. Notwithstanding that, bugs cost software companies a lot of money every year and upset customers, users, and developers. Some bugs happen as a result of undefined behavior occurring in the program. Undefined behavior is a concept known especially in the C and C++ languages which means that the semantics...

Welcome to the Red Hat® Developer Newsletter.You may remember from last month that we planned to discuss coding and pumpkins, but we've forgotten what we intended to cover. :( Was it cooking and pumpkins? Or was it about planting pumpkins in Minecraft? So, we put on our thinking caps and came up with the most logical answer for a developer newsletter: coding with pumpkin beer. :) Enjoy the season. And enjoy the coding using Red Hat developer tools. On the...

"Summary: As the Internet of Things stands to transform the enterprise, look beyond the traditional architecture used for consumer-based IoT solutions. In a three-tier architecture for the Internet of Things, the intelligent controller tier makes the interconnections between the device and datacenter tiers, holding together the entire IoT solution. "Many consumer-based IoT solutions are enabled by a two-tier architecture of direct device-to-server communication and data exchange. These architectures lack the ability to scale and address the time-critical nature of enterprise-class...

Here's the list of Red Hatters speaking at JavaOne 2014 next week. Please attend and tell them I said it was ok to ask them tough questions. ;) Arun Gupta ( Bio ) Devoxx4Kids for Parents Java EE 7 Soup to Nuts Lessons Learned from Real-World Deployments of Java EE 7 Technology Evangelists Gathering Charles Nutter ( Bio ) Going Native: Bringing FFI to the JVM The Emerging Languages Bowl: The Big League Challenge George Gastaldi ( Bio ) Tools...

POSIX specifies which of the interfaces it defines are safe to call in multi-threaded (MT) programs, in asynchronous signal (AS) handlers, and when asynchronous thread cancellation (AC) is enabled. But to what extent does GNU libc comply with POSIX , or even strive to? In this article we will dig into this topic and look at a recent project Red Hat has completed together with the upstream community. Although GNU libc strives to comply with POSIX, there have long been...

This year Akademy , the KDE conference, will be held in Brno very close to the Red Hat office at the University (FEKT VUT) in the technological park. There will be many KDE related presentations and workshops. I'm looking forward to hearing about new features of KF5 (KDE Frameworks) and Plasma. There are also general developers topic e.g. A Tale of ELFs and DWARFs or Usability talks. Come and see our colleagues who are presenting there. Daniel Vrátil - A...