RHEL

Introduction There has been already two ( first and second) guides which covered installing django using Red Hat Software Collections (RHSCL). While very popular, none of them went far enough to show a real world deployment example. This guide will try to provide full guidance together with sample project. I chose django 1.7 (as of time writing this guide, it's still in RC) because in a couple of months, it will be used by many and in a year or...

Do you have a Java application that runs fine at first but slows down after a while, or it runs fine for a small number of files but performance degrades for large number of files? Maybe you have a memory leak. About When fixing memory leaks; If someone were to ask me: "If you knew back then what you know now, what would you tell yourself?". Well, I would say..... Target Audience While in general the approach described in this...

Red Hat has released the beta version of Red Hat Enterprise Linux 6.6, the latest version of our Red Hat Enterprise Linux 6 platform. Red Hat Enterprise Linux 6.6 Beta includes enhancements to both security and stability as well as: Increased system performance An improved system administration experience Enhancements to Red Hat Enterprise Linux as a virtual guest Optimizations and tuning improvements include: Out-of-the-box support for Remote Direct Memory Access (RDMA) over Converged Ethernet (RoCE) to deliver low-latency, high bandwidth...

Excerpts from the original article: "Now that Red Hat Enterprise Linux 7 is generally available, we are re-casting the Red Hat Enterprise Linux High Touch Beta program into a series of Red Hat Enterprise Linux 7 special interest groups (SIGs), the first of which is focused on application containers. The Red Hat Enterprise Linux Atomic Host SIG encompasses technologies that are required to create, deploy, and manage application containers. "We also announced today that Red Hat and Google are collaborating...

Excerpts from the original announcement: "Red Hat and Google are both committed to open source and we were both early proponents of Docker as well as key contributors to the Docker project. We are now joining forces to drive a new open standard around orchestrating Docker containers at scale for the management of cloud application deployments. "Today, Red Hat is announcing that as part of Project Atomic, we are collaborating with Google to tackle the challenge of how to manage...

Excerpts from the original article: "Red Hat announced the general availability of Red Hat Enterprise Linux OpenStack Platform 5, the third enterprise release of Red Hat's OpenStack offering, designed to serve as the foundation for building OpenStack-powered clouds for advanced cloud users, telecommunications companies, Internet service providers (ISPs), and public cloud hosting providers. "Red Hat Enterprise Linux OpenStack Platform 5 is based on the OpenStack Icehouse release and includes several new features aimed at easing enterprise adoption of OpenStack technology...

Reposted in its entirety from rhelblog.redhat.com. When Red Hat Enterprise Linux 5 was first introduced in 2007, it was done so with an expected seven year lifecycle. Five years later, in 2012, we saw the continued strong adoption of Red Hat Enterprise Linux 5 and decided to extend its seven year lifecycle to 10 years. Now, in 2014, the original retirement year for Red Hat Enterprise Linux 5, we still see an active, dedicated customer base that has come to...

Red Hat Enterprise Linux 7 is now GA and so it's time to write some code and/or port your applications. So let's take a quick inventory of development tools, shall we? With RHEL, there are 2 primary sets of toolchains for you to use. First, there's base RHEL 7 tools (like RHEL 6) that will be supported with RHEL 7 for 10 years (more below). Second, there are complementary tools in Red Hat Software Collections (RHSCL) and Red Hat Developer...

Yes, you may have heard that Red Hat Enterprise Linux 7 is now generally available. ;) But here is more good news: RHEL 7 is now available in all Amazon Web Services (AWS) regions including GovCloud (US)! Here's what Amazon's Terry Wise (head of Worldwide Partner Ecosystem, Amazon Web Services) had to say in a Red Hat press release this week: “Red Hat and Amazon Web Services have worked closely together since 2007 to make Red Hat Enterprise Linux widely...

Today marks an exciting milestone for Red Hat as we share news of the general availability of Red Hat Enterprise Linux 7, the latest major release of the flagship platform. Red Hat Enterprise Linux 7 not only lays the foundation for the open hybrid cloud and serves enterprise workloads across converged infrastructures; it pushes the operating system beyond today’s position as a commodity platform. Built to meet modern datacenter demands along with next-generation IT requirements, Red Hat Enterprise Linux 7...

It looks like it will be worth "seeing" this virtual event: Red Hat will host “ Redefining the Enterprise Operating System,” a webcast and virtual event at 11 a.m. EDT on Tuesday, June 10, 2014. Attendees will learn more about how Red Hat Enterprise Linux has: transformed the IT industry. redefined the server operating system. enabled unparalleled choice for customers. created the foundation for cloud computing. The event is open and complimentary for all Red Hat customers, partners, contributors, and...

Red Hat Enterprise Linux 7 Release Candidate now available "As mentioned during Red Hat Summit 2014 last week, we are excited to announce that Red Hat Enterprise Linux 7 Release Candidate (RC) is now publicly available for testing. A pre-release build of Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 7 RC offers a near-final look at Red Hat’s flagship operating system crafted for the open hybrid cloud, building upon the feedback collected during the beta program for Red...

With April showers, comes talk about containers. (Well, not exactly, but there's a lot of container discussion going on these days.) Bhavna has produced this excellent article to summarize Red Hat's efforts on them. Here's an excerpt: "Let’s dive into world of containers. Red Hat customers often desire for their applications to run in a secure environment and have been seeking, whether they actually know it or not, a fully supported light weight application isolation solution. At the other end...

Please take a moment to give us your input and feedback on Red Hat Enterprise Linux 7 Beta. Thank you!

As Software Collections are getting popular, there are more and more people asking how they can build their own collections and/or extend collections in RHSCL. In this article, I will demonstrate how to extend python27 collection from RHSCL 1.1 (Beta), adding a simple Python extension library. I'm going to work on a RHEL 6 machine throughout this whole tutorial. I'm assuming that readers have basic knowledge of RPM building and Software Collections concept. General Notes This tutorial uses a technique...

Apologies that this has been so long in coming, but I was certain that we had already written a post on this subject. What subject you ask? How does one set one or more software collections as automatically enabled for your login. Some of you may consider this obvious, but there are a number of ways to accomplish this goal. First, you just "source" the enable script from your .bashrc. For example source /opt/rh/python33/enable However, as this Red Hat kbase...

Announcement: "Hortonworks and Red Hat Deepen Strategic Alliance" Here are some highlights from Monday's announcement: "Immediate initiatives that are included in the expanded Hortonworks and Red Hat strategic alliance include "Data architects will be able to combine data in a single, scalable open source repository. Available in beta software version, the Hortonworks Data Platform (HDP) combined with Red Hat Storage provides a secure and resilient general-purpose storage pool with multiple interfaces, including Hadoop, POSIX and OpenStack Object Storage (Swift). This...

Here's a short video about what Red Hatters are saying about RHEL 7 beta, the next-generation of the world’s leading Linux platform. http://www.youtube.com/watch?feature=player_embedded&v=n8cbR2AtjAQ It can also be seen on the RHEL blog for SysAdmins: rhelblog.redhat.com.

Repost from Red Hat Enterprise Linux Blog. "In the coming weeks, we’ll explore the inner workings of Red Hat Enterprise Linux 7 Beta – what makes it tick and how it will make your organization tick better. But for now, read all about what the next generation of Red Hat Enterprise Linux 7 will entail here – better yet, try it out for yourself, and enter a drawing to win $500 by telling us what interests you most."

Be sure to follow this new addition to the Red Hat blogosphere at: rhelblog.redhat.com. You can expect to see a great series of technical articles here.

So, yeah, it was in beta testing, but now it's generally available! See the recent Red Hat press release. If you use virtualization in your development (e.g. spinning up VMs for projects), you might find the ability to change proc counts while the guest is running useful. RHEL 6.5 virtualization also adds direct integration with GlusterFS / Red Hat Storage in case you want to play with that in a virtualized test environment. Dynamic storage is definitely getting interesting and...

One of the new features for the Developer Toolset (DTS) 2.0 is Eclipse 4.3.0 (Kepler). Aside from various performance improvements to the base platform since Eclipse 4.2 (Juno) a lot of other plugins are being shipped to make life easier for development. The C/C++ Developer Tooling (CDT) is a plugin used to develop, build, run, and debug C/C++ applications in Eclipse. It has support for various toolchains, Makefile/Autotools projects, static analysis, and easy navigation of a code-base thanks to a...

Red Hat intended for developers to integrate Developer Toolset 2.0 (DTS) and Red Hat Software Collections 1.0 (RHSCL). As you may not realize, inside the DTS is a copy of Eclipse and you can use that with any software collection. In other words, you can use PyDev, with the Python 2.7 Software Collection from RHSCL in the Eclipse from DTS. Let's find out how. First, let's make sure you have the right repos, [lwhite@lwhite-laptop ~]$ sudo yum repolist Loaded plugins...

Some months ago, I developed and released a small Puppet module for tuned-adm. As this tool is a nice feature of RHEL, I think it is only fair from me to advertise about it here, on the Red Hat developer blog. Quick overview of 'tuned-adm' (Photo credit: Accretion Disc) To make this brief, this command will take care of tuning the operating system for you, based on the usage you want to make of it. For instance, if you want...