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Red Hat

Fedora 30 Elections Results

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Red Hat

The Fedora 30 election cycle has concluded. Here are the results for each election. Congratulations to the winning candidates, and thank you all candidates for running in this election!

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Red Hat: Fedora BoF at Red Hat Summit, Volume Cloning Alpha for Kubernetes, Dell/EMC

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Red Hat
  • Fedora BoF at Red Hat Summit

    Every year, Red Hat holds a conference for customers, partners, and open source contributors — Red Hat Summit.This year’s was last month, in Boston, Massachusetts, and of course Fedora was there. We had our booth in the “Community Central” area of the expo floor, and ran a birds-of-a-feather (BoF) session for open discussion with community members. I was joined by Brian Exelbierd, Ben Cotton, Adam Šamalík, and a dozen members of the Fedora community.

    We used a “lean coffee” format to drive the topics, letting the attendees propose and vote on what we discussed. (It’s basically the same format we use for Fedora Council’s open floor meetings, but in person rather than via IRC.) I expected a lot of questions about the new features of Fedora 30, which was released eight days before. But the community members who came to the BoF seemed pretty well-informed on this. Instead, the most-voted topic was Fedora Modularity.

  • Introducing Volume Cloning Alpha for Kubernetes

    Kubernetes v1.15 introduces alpha support for volume cloning. This feature allows you to create new volumes using the contents of existing volumes in the user’s namespace using the Kubernetes API.

  • How Dell EMC and Red Hat work together on joint solutions

    From virtualization and cloud to enterprise IT optimization and performance, Red Hat and Dell EMC deliver open, cost-effective and highly reliable solutions. Our jointly designed and architected solutions blend the best of Red Hat technology with Dell EMC’s customer-driven innovation to create solutions and services that address real-world needs.

Red Hat and SUSE Leftovers

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Red Hat
SUSE
  • How a service mesh helps manage distributed microservices

    A service mesh brings security, resiliency, and visibility to service communications, so developers don’t have to

  • RHEL 8: 'the foundation for digital transformation'
  • 7 infrastructure performance and scaling tools you should be using

    Sysadmins, site reliability engineers (SREs), and cloud operators all too often struggle to feel confident in their infrastructure as it scales up. Also too often, they think the only way to solve their challenges is to write a tool for in-house use. Fortunately, there are options. There are many open source tools available to test an infrastructure's performance. Here are my favorites.

  • Future of CRDs: Structural Schemas

    Authors: Stefan Schimanski (Red Hat)

    CustomResourceDefinitions were introduced roughly two years ago as the primary way to extend the Kubernetes API with custom resources. From the beginning they stored arbitrary JSON data, with the exception that kind, apiVersion and metadata had to follow the Kubernetes API conventions. In Kubernetes 1.8 CRDs gained the ability to define an optional OpenAPI v3 based validation schema.

    By the nature of OpenAPI specifications though—only describing what must be there, not what shouldn’t, and by being potentially incomplete specifications—the Kubernetes API server never knew the complete structure of CustomResource instances. As a consequence, kube-apiserver—until today—stores all JSON data received in an API request (if it validates against the OpenAPI spec). This especially includes anything that is not specified in the OpenAPI schema.

  • Redis 5 now available on Red Hat Enterprise Linux 7

    Red Hat Software Collections supply the latest, stable versions of development tools for Red Hat Enterprise Linux via two release trains per year. As part of the latest Software Collections 3.3 release, we are pleased to announce that Redis 5 is now generally available and supported on RHEL 7.

    The new Red Hat Software Collection includes Redis 5.0.3. Redis 5 is an open source in-memory data structure store, used as a database, cache and/or message broker. This version provides multiple enhancements and bug fixes over version 3.2 distributed with an earlier Red Hat Software Collections release. Most notably, the redis-trib cluster management tool has been implemented in the Redis command-line interface.

    The primary addition in Redis 5 is Streams—a new log-like data structure for storing multiple fields and string value with automatic sequencing. For detailed changes in Redis, see the upstream release notes for version 4.0 and version 5.0.

  • Mentoring new system administrators

    While this article is geared toward senior system administrators taking a more active role in the development of newer team members, those readers who are new might find interest in a different view of the world of working with newer systems administrators.

    As a system administrator who has been in the role for a long time, it’s easy to shake a proverbial cane at those newer team members who bother you with inane questions lacking the technical detail needed to provide a complete answer. It would be so easy to gruffly utter a few words to get them to go away, or point out the lack of specificity of the question in such a way as to make them feel so small that they won't talk to you again. I’ve been there, and—being frank—done exactly that.

    I was recently reading a discussion forum where there was an administrator who appeared inexperienced and, apparently, all on his or her own to figure things out. That caused me to think back to my first system administration job, and realize how thankful I am that when I started, I had someone senior who was willing to invest time in helping me become better. This better didn’t come in the form of drilling me with commands or syntax, but with a more Socratic method to help me develop skills that I use almost every day.

    When I first started with the group, whenever I hit an issue, I would go down to Chris’ office with my notepad and pencil and ask him about the problem (sometimes multiple times a day). After about a week of this, I came into his office, as usual, to ask about a system call or something. He didn’t look at me and put his hand up, signaling me to stop.

    After he finished whatever it was he was working on, he turned to me and said, “What research have you done about this question? Man pages? Google searches? -h output?”

    I said, “No, I just came down here to ask you.”

  • SUSE now member of iRODS, Sponsor of User Group Meeting

    This month, SUSE became a member of the iRODS (integrated Rule-Oriented Data System) consortium which is an open source data management software used by research organizations and government agencies worldwide.

    [...]

    iRODS UGM will host 25+ presentations from the user community and the core development team, including use case presentations, live demonstrations, and open discussions about requested iRODS features. They anticipate an audience of 150 participants representing dozens of academic, government, and commercial institutions.

CentOS 7 and RHEL 7 Get Important Linux Kernel Update to Patch SACK Panic Flaws

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Red Hat
Security

The new Linux kernel security updates patch an integer overflow flaw (CVE-2019-11477) discovered by Jonathan Looney in Linux kernel's networking subsystem processed TCP Selective Acknowledgment (SACK) segments, which could allow a remote attacker to cause a so-called SACK Panic attack (denial of service) by sending malicious sequences of SACK segments on a TCP connection that has a small TCP MSS value.

"While processing SACK segments, the Linux kernel's socket buffer (SKB) data structure becomes fragmented," reads Red Hat's security advisory. "Each fragment is about TCP maximum segment size (MSS) bytes. To efficiently process SACK blocks, the Linux kernel merges multiple fragmented SKBs into one, potentially overflowing the variable holding the number of segments."

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Making Fedora 30

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Red Hat

Although Fedora 29 released on October 30, 2018, work on Fedora 30 began long before that. The first change proposal was submitted in late August. By my count, contributors made nine separate change proposals for Fedora 30 before Fedora 29 shipped.

Some of these proposals come early because they have a big impact, like mass removal of Python 2 packages. By the time the proposal deadline arrived in early January, the community had submitted 50 change proposals.

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Red Hat's last quarterly report?

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Red Hat

Soon, IBM will complete its acquisition of Red Hat for $34-billion. But, Red Hat's not resting on its laurels waiting. The company announced its financial results for the first quarter of fiscal year 2020 ended May 31, 2019. With first quarter total revenue of $934 million, up 15 percent year-over-year in USD, or 18 percent in constant currency, Red Hat did quite well.

Still, Wall Street expected Red Hat to report net income of $162.4 million, or 87 cents a share, on sales of $931.6 million after the market closes on Thursday, based on a FactSet survey of 14 analysts. In reality, Red Hat GAAP net income for the quarter was $141 million, or $0.76 diluted earnings per share. Non-GAAP adjusted net income for the quarter was $186 million, or $1.00 diluted EPS.

Not bad. Not bad at all.

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Fedora 30 test on laptop with Nvidia - Back in 2010

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Red Hat
Hardware
Reviews

I think the results are obvious, and they speak for themselves. Alas, it would seem that if you want to use Fedora with a setup like the above, then you'll be either very lucky or you're going to face a torrent of problems. But then, Linux has always been, to use a somewhat stupid analogy, like saying you should only drive your car on Mondays on roads that have green sidewalks, and then you will be fine. The whole not-our-problem, use hardware that's "friendly" is nonsense, because people don't have infinite money, choice or expertise, especially since alternative operating systems offer all they need, plus a full range of hardware freedom.

My Fedora 30 test on the G50 was decent - that's a simple Intel graphics box - but even that one used to have millions of problems with Linux - Fedora wouldn't boot until I'd done a BIOS update, and for three years, almost every distro had network disconnect problems. On this box, we're seeing more of what I showed you in the Fedora 29 test. Fedora and Nvidia graphics are not a good fit. Add to that my home dir import woes, the performance woes, the Wireless woes, you get the picture. Feels like we've gone back many years into the past. I'd actually prefer if distros WARNED that the device is not certified or approved or expected to work and refuse to install, than install and then throw a whole bucket of hissy. I will still run an in-vivo upgrade on the Lenovo machine, because that's what I promised to do, but this is a big, big disappointment.

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Red Hat and SUSE Leftovers

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Red Hat
SUSE
  • Are DevOps certifications valuable? 10 pros and cons
  • Kubernetes 1.15: Enabling the Workloads

    The last mile for any enterprise IT system is the application. In order to enable those applications to function properly, an entire ecosystem of services, APIs, databases and edge servers must exist. As Carl Sagan once said, “If you wish to make an apple pie from scratch, you must first invent the universe.”

    To create that IT universe, however, we must have control over its elements. In the Kubernetes universe, the individual solar systems and planets are now Operators, and the fundamental laws of that universe have solidified to the point where civilizations can grow and take root.

    Discarding the metaphor, we can see this in the introduction of Object Count Quota Support For Custom Resources. In English, this enables administrators to count and limit the number of Kubernetes resources across the broader ecosystem in a given cluster. This means services like Knative, Istio, and even Operators like the CrunchyData PostgreSQL Operator, the MongoDB Operator or the Redis Operator can be controlled via quota using the same mechanisms that standard Kubernetes resources have enjoyed for many releases.

    That’s great for developers, who can now be limited by certain expectations. It would not benefit the cluster for a bad bit of code to create 30 new PostgreSQL clusters because someone forgot to add a “;” at the end of a line. Call them “guardrails” that protect against unbounded object growth in your etcd database.

  • Red Hat named HPE’s Partner of the Year at HPE Discover 2019

    For more than 19 years, Red Hat has collaborated with HPE to develop, deliver and support trusted solutions that can create value and fuel transformation for customers. Our work together has grown over these nearly two decades and our solutions now include Linux, containers and telecommunications technologies, to name just a few. As a testament to our collaboration, HPE has named Red Hat the Technology Partner of the Year 2019 for Hybrid Cloud Solutions.

  • Demystifying Containers – Part II: Container Runtimes

    This series of blog posts and corresponding talks aims to provide you with a pragmatic view on containers from a historic perspective. Together we will discover modern cloud architectures layer by layer, which means we will start at the Linux Kernel level and end up at writing our own secure cloud native applications.
    Simple examples paired with the historic background will guide you from the beginning with a minimal Linux environment up to crafting secure containers, which fit perfectly into todays’ and futures’ orchestration world. In the end it should be much easier to understand how features within the Linux kernel, container tools, runtimes, software defined networks and orchestration software like Kubernetes are designed and how they work under the hood.

  • Edge > Core > Cloud: Transform the Way You Want

    For more than 25 years, SUSE has been very successful in delivering enterprise-grade Linux to our customers. And as IT infrastructure has shifted and evolved, so have we. For instance, we enabled and supported the move to software-defined data centers as virtualization and containerization technologies became more prevalent and data growth demanded a new approach.

  • SUSE OpenStack Cloud Technology Preview Takes Flight

    We are pleased to announce that as of today we are making a technology preview of a containerized version of SUSE OpenStack Cloud available that will demonstrate a future direction for our product. The lifecycle management for this technology preview is based on an upstream OpenStack project called Airship, which SUSE has been using and contributing to for some time. This follows our open / open policy of upstream first and community involvement.

Red Hat Enterprise Linux 8 GNOME and display server changes

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Red Hat
GNOME

Red Hat Enterprise Linux 8 contains some important changes regarding the GNOME graphical interface and the default display server. If you are using a graphical desktop in RHEL 8, the most visible change will be that, by default, the GNOME Shell interface is used. This interface has a different appearance and operation compared to GNOME Classic, the default graphical interface in RHEL 7.

Here, we will cover an overview of the GNOME Shell interface in RHEL 8, and also how to switch to the GNOME Classic interface that is similar to the default interface on RHEL 7. We will also cover the new default display server, Wayland, and how to switch the display server to X.org X11 if needed. Another notable change in RHEL 8 is that the KDE Plasma interface has been removed.

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Red Hat welcomes Oracle to the oVirt community

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Red Hat
Server

On behalf of the oVirt community, its contributors and Red Hat, we welcome Oracle to the oVirt community. oVirt is the open source component that enables management of the Linux Kernel Virtual Machine (KVM), the hypervisor for virtualized environments running on the Linux kernel.

At Red Hat, we believe that upstream collaboration drives innovation, even among competitors. To this end, Red Hat has a 10+ year tenure of thought leadership, contributions and collaboration in the oVirt and KVM communities. Our development and release processes are designed to ensure that Red Hat contributions to these communities are pushed upstream so the benefits gained from our efforts are available to the community at large and available for any and all to draw from.

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Also: IBM-Powered Supercomputers Lead Semi-Annual Rankings

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More in Tux Machines

today's leftovers

  • Hardware Review - The ZaReason Virtus 9200 Desktop
  • Chrome OS 76 will disable Crostini Linux backups by default
    Essentially, this is still a work in progress feature. And I shouldn’t be terribly surprised by that, even though in my experience, the functionality hasn’t failed me yet. That’s because we know that the Chromium team is considering on a way to backup and restore Linux containers directly from the Files app on a Chromebook. That proposal is targeted for Chrome OS 78, so this gives the team more time to work that out, as well as any other nits that might not be quite right with the current implementation.
  • Andrei Lisita: Something to show for
    Unfortunately along with the progress that was made we also encountered a bug with the NintendoDS core that causes Games to crash if we attempt to load a savestate. We are not yet 100% sure if the bug is caused by my changes or by the NintendoDS core itself. I hope we are able to fix it by the end of the summer although I am not even sure where to start since savestates are working perfectly fine with other cores. Another confusing matter about this is that the Restart/Resume Dialog works fine with the NintendoDS core and it also uses savestates. This led me to believe that perhaps cores can be used to load savestates only once, but this can’t be the problem since we re-instantiate the core every time we load a savestate. In the worst case we might just have to make a special case for the NintendoDS core and not use savestates with it, except for the Resume/Restart dialog. This would sadden me deeply since there are plenty of NintendoDS games which could benefit from this feature.
  • OSMC's June update is here with Kodi v18.3
    Team Kodi recently announced the 18.3 point release of Kodi Leia. We have now prepared this for all supported OSMC devices and added some improvements and fixes. Here's what's new:

OSS Leftovers

  • A comparison of open source, real-time data streaming platforms
    A variety of open source, real-time data streaming platforms are available today for enterprises looking to drive business insights from data as quickly as possible. The options include Spark Streaming, Kafka Streams, Flink, Hazelcast Jet, Streamlio, Storm, Samza and Flume -- some of which can be used in tandem with each other. Enterprises are adopting these real-time data streaming platforms for tasks such as making sense of a business marketing campaign, improving financial trading or recommending marketing messages to consumers at critical junctures in the customer journey. These are all time-critical areas that can be used for improving business decisions or baked into applications driven by data from a variety of sources.
  • Amphenol’s Jason Ellison on Signal Integrity Careers and His Free, Open Source PCB Design Software
    Ellison, Senior Staff Signal Integrity Engineer at Amphenol ICC, gives his insight on the importance of networking, giving to the EE community, and his open-source signal integrity project. How does signal integrity engineering compare to other EE fields? What are open-source resources worth these days? What makes for a good work life for an engineer? Learn this and more in this Engineer Spotlight! Jason Ellison started down the path to becoming an electrical engineer because someone told him it was "fun and easy if you're good at math." In this interview with AAC's Mark Hughes, Ellison—a Senior Staff Signal Integrity Engineer at Amphenol ICC—describes how his career has grown from these beginnings into the rewarding and diverse work of signal integrity engineering.
  • Cruise open-sources Webviz, a tool for robotics data analysis [Ed: Releasing a little tool that's part of proprietary software so that it 'feels' more "open"]
    Cruise, the self-driving startup that General Motors acquired for nearly $1 billion in 2016, generates an enormous amount of data by any measure. It orchestrates 200,000 hours of driving simulation jobs daily in Google Cloud Platform, spread across 30,000 virtual cars in an environment running on 300,000 processor cores and 5,000 graphics cards. Both those cars and Cruise’s fleet of over 180 real-world autonomous Chevrolet Bolts make thousands of decisions every second, and they base these decisions on observations captured in binary format from cameras, microphones, radar sensors, and lidar sensors.
  • EWF launches world’s first open source blockchain for the energy industry
    The Energy Web Foundation this week announced that it has launched the world’s first public, open-source, enterprise-grade blockchain tailored to the energy sector: the Energy Web Chain (EW Chain). More than ten Energy Web Foundation (EWF) Affiliates — including utilities, grid operators, and blockchain developers — are hosting validator nodes for the live network, according to the company.
  • Pimcore Releases Pimcore 6.0, Amplifying User-Friendly Digital Experiences Through Open Source
    Pimcore, the leading open-source platform for data and customer experience management, has released the most powerful version of the Pimcore platform, Pimcore 6.0. The updated platform includes a new user interface that seamlessly connects MDM/PIM, DAM, WCM, and digital commerce capabilities to create more advanced and user-friendly experiences quickly and efficiently.
  • VCV Rack reaches version 1.0.0: free and open-source modular synth gets a full release
    VCV Rack is a free, open-source modular software synth that’s been gaining ground for a couple of years, but only now has it reached the significant milestone of version 1.0. Designed to replicate the feeling of having a hardware modular synth on your desktop, VCV Rack enables you to add both free and paid-for modules, and now supports polyphony of up to 16 voices. There’s MIDI Output, too with CV-Gate, CV-MIDI and CV-CC modules enabling you to interface with drum machines, desktop synths and Eurorack gear.
  • Flying Above the Shoulders of Giants
    Thanks to open-source platforms, developers can stand on the shoulders of software giants to build bigger and better things. Linux is probably the biggest...
  • MIT Researchers Open-Source AutoML Visualization Tool ATMSeer
    A research team from MIT, Hong Kong University, and Zhejiang University has open-sourced ATMSeer, a tool for visualizing and controlling automated machine-learning processes. Solving a problem with machine learning (ML) requires more than just a dataset and training. For any given ML tasks, there are a variety of algorithms that could be used, and for each algorithm there can be many hyperparameters that can be tweaked. Because different values of hyperparameters will produce models with different accuracies, ML practitioners usually try out several sets of hyperparameter values on a given dataset to try to find hyperparameters that produce the best model. This can be time-consuming, as a separate training job and model evaluation process must be conducted for each set. Of course, they can be run in parallel, but the jobs must be setup and triggered, and the results recorded. Furthermore, choosing the particular values for hyperparameters can involve a bit of guesswork, especially for ones that can take on any numeric value: if 2.5 and 2.6 produce good results, maybe 2.55 would be even better? What about 2.56 or 2.54?
  • Open-Source Cybersecurity Tool to Enhance Grid Protection
    A revolutionary new cybersecurity tool that can help protect the electric power grid has been released to the public on the code-hosting website GitHub.
  • Quick notes for Mozilla Whistler All Hands 2019
  • Deeper into the data fabric with MongoDB
    However, to gain access to rich search functionality, many organisations pair their database with a search engine such as Elasticsearch or Solr, which MongoDB claims can complicate development and operations — because we end up with two entirely separate systems to learn, maintain and scale.

Raspberry Pi 4 is here!

The latest version of the Raspberry Pi—Raspberry Pi 4—was released today, earlier than anticipated, featuring a new 1.5GHz Arm chip and VideoCore GPU with some brand new additions: dual-HDMI 4K display output; USB3 ports; Gigabit Ethernet; and multiple RAM options up to 4GB. The Raspberry Pi 4 is a very powerful single-board computer and starts at the usual price of $35. That gets you the standard 1GB RAM, or you can pay $45 for the 2GB model or $55 for the 4GB model—premium-priced models are a first for Raspberry Pi. Read more

Open Data, Open Access and Open Hardware

  • DoD’s Joint AI Center to open-source natural disaster satellite imagery data set
    As climate change escalates, the impact of natural disasters is likely to become less predictable. To encourage the use of machine learning for building damage assessment this week, Carnegie Mellon University’s Software Engineering Institute and CrowdAI — the U.S. Department of Defense’s Joint AI Center (JAIC) and Defense Innovation Unit — open-sourced a labeled data set of some of the largest natural disasters in the past decade. Called xBD, it covers the impact of disasters around the globe, like the 2010 earthquake that hit Haiti. “Although large-scale disasters bring catastrophic damage, they are relatively infrequent, so the availability of relevant satellite imagery is low. Furthermore, building design differs depending on where a structure is located in the world. As a result, damage of the same severity can look different from place to place, and data must exist to reflect this phenomenon,” reads a research paper detailing the creation of xBD. [...]

    xBD includes approximately 700,000 satellite images of buildings before and after eight different kinds of natural disasters, including earthquakes, wildfires, floods, and volcanic eruptions. Covering about 5,000 square kilometers, it contains images of floods in India and Africa, dam collapses in Laos and Brazil, and historic deadly fires in California and Greece.

    The data set will be made available in the coming weeks alongside the xView 2.0 Challenge to unearth additional insights from xBD, coauthor and CrowdAI machine learning lead Jigar Doshi told VentureBeat. The data set collection effort was informed by the California Air National Guard’s approach to damage assessment from wildfires.

  • Open-source textbooks offer free alternative for UC Clermont students
    Some UC Clermont College students are avoiding paying hundreds of dollars for textbooks — and getting the content for free — thanks to online open-source textbooks, a growing trend among faculty at the college and throughout higher education. UC Clermont Dean Jeff Bauer, who is also a professor of business, said the benefits of open textbooks are many. “All students have the book on the first day of class, it saves them a lot of money, and the information can be accessed anywhere, anytime, without carrying around a heavy textbook,” Bauer said. “They don’t need to visit the bookstore before or after each semester to buy or sell back books, either.”
  • Open Source Computer Controlled Loom Knits Pikachu For You
    The origin story of software takes us back past punch card computers and Babbage's Difference Engine to a French weaver called Joseph Marie Jacquard.
  • Successful open-source RISC-V microcontroller launched through crowdfunding
    X-FAB Silicon Foundries, together with crowd-sourcing IC platform partner Efabless Corporation, launched the first-silicon availability of the Efabless RISC-V SoC reference design. This open-source semiconductor project went from start of design to tape-out in less than three months employing the Efabless design flow produced on open-source tools. The mixed-signal SoC, called Raven, is based on the community developed ultra-low power PicoRV32 RISC-V core. Efabless has bench-tested the Raven at 100MHz, and based on simulations, the solution should operate at up to 150MHz.
  • Open Hardware: Open-Source MRI Scanners Could Bring Enormous Cost Savings
    Wulfsberg explore the possibilities of open source MRI scanning. As open-source technology takes its place around the world—everywhere from makerspaces to FabLabs, users on every level have access to design and innovation. In allowing such access to MRI scanning, the researchers realize the potential for ‘technological literacy’ globally—and with MRIs specifically, astronomical sums could be saved in healthcare costs. The authors point out that medical technology is vital to the population of the world for treating not only conditions and illnesses, but also disabilities. As so many others deeply involved in the world of technology and 3D printing realize, with greater availability, accessibility, and affordability, huge strides can be made to improve and save lives. Today, with so many MRI patents expiring, the technology is open for commercialization.