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Red Hat: EPEL8, vDPA and Apache Kafka on OpenShift

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Red Hat
  • EPEL8 packages

    With the opening up of EPEL8, there’s a lot of folks looking and seeing packages they formerly used in EPEL6/7 not being available and wondering why. The reason is simple: EPEL is not a fixed exact list of packages, it’s a framework that allows interested parties to build and provide the packages they are interested in providing to the community.

    This means for a package to be in EPEL8, it requires a maintainer to step forward and explicitly ask “I’d like to maintain this in EPEL8” and then build, test and do all the other things needed to provide that package.

    The reason for this is simple: We want a high quality, maintained collection of packages. Simply building things once and never again doesn’t allow for someone fixing bugs, updating the package or adjusting it for other changes. We need a active maintainer there willing and able to do the work.

  • vDPA hands on: The proof is in the pudding

    In this post, we will set up vDPA using its DPDK framework. Since vDPA compatible HW cards are in the process of being commonly available on the market, we will work around the HW constraint by using a paravirtualized Virtio-net device in a guest as if it was a full Virtio HW offload NIC.

  • Open Banking with Microservices Architectures and Apache Kafka on OpenShift

    Last month, at OpenShift Commons Gathering Milan, Paolo Gigante and Pierluigi Sforza of Poste Italiane, showed the audience how they built a microservices based banking architecture using Apache Kafka and OpenShift. Their slides are available here. For more great in-person events like this, register for the next Commons Gathering near you! San Francisco is coming up before the end of the month, and will focus on AI/ML.

More in Tux Machines

Python Programming

  • Only Python: Friendly-traceback: work in progress

    It's been almost two months since my last blog post and I feel guilty of not haven't taken the time to write more regularly.  I should really tell you about how fantastic Will McGugan's Rich is, and how I have customized it for my projects. I should also tell you how Sylvain Desodt's DidYouMeanPython has been influencing Friendly-traceback latest developments. Also worthy of note is how Alex Hall's FutureCoder project is incorporating so many neat tools that it feels like a real honour that he has incorporated Friendly-traceback in it. Alas, while I have been busy making many changes and addition to the code, the documentation is hopelessly behind and no longer gives a correct picture of what Future-traceback is now capable of. So much to do, so little time. So, I will just end with a picture, and go back to coding, with a promise of writing more ... soon I hope.

  • Python range() Function – Linux Hint

    Python is a modern, general-purpose, and high-level programming language that comes with powerful features. Python has many built-in modules to support diverse operations. The range() function is a built-in function used to perform specific tasks or actions for a definite number of times. In other words, the range() function is used to perform a task iteratively. This function is used in conjunction with the for loop and the while loop.

  • Python Dictionaries – Linux Hint

    Python is an efficient and versatile programming language. It is one of the most frequently used high-level programming languages to perform data-related tasks due to its many supportive built-in modules and functions. To mention some of its many built-in data structures, it has arrays, lists, tuples, etc. Dictionaries are one of the built-in data structures in Python. It holds the data in the form of a key-value pair. The keys are the unique value that acts as a representative of data. The key is also called as “an index value”. Data structures are a very important aspect of any programming language. They are used to store and manipulate the data in a well-organized and efficient way. Therefore, Python dictionaries are more useful when we need to store the data in a form of key-value pair and to access the data faster. The Python dictionaries return the data faster because the key value for every data is unique, therefore the searching time for data is reduced, and we get the result faster. This article explicates the Python dictionaries in detail.

  • Python Classes – Linux Hint

    Python is one of the multiuse high-level programming languages. It is an object-oriented programming language. The main difference between the procedural and object-oriented programming languages is that we cannot create the classes in procedural programming languages. The main focus of procedural languages is on creating functions, and variables for performing the task whereas, in object-oriented programming languages, our main concern is to create objects and use them for performing our tasks. A class is simply a blueprint that contains functions and variables. A class is like a real-life classroom of any institute. It contains some chairs, tables, desks, a projector, walls, etc. base on all these components; we build a classroom. All these components are the variables and functions in a class, and a classroom is an object. The Python classes and objects are explained in this article.

  • FreeBSD process environ and resource limits

    New psutil 5.7.3 is out. This release adds support for 2 functionalities which were not available on BSD platforms: the ability to get the process environment (all BSD) and to get or set process resource limits (FreeBSD only), similarly to what can be done on Linux.  

Kernel: KVM, Btrfs and nosymfollow

Japanese IME on PCLinuxOS 64 KDE5 Magnum 2020 1015

I recently saw that my install of PCLinuxOS was behaving funny after and update: the effects ceased working and web pages were loading slowly. Last time this happened to me, I had to install a new iso because I had been working with a very old one. This time, however, I had kept up with all the updates thanks to the convenient Simple Update Notifier, but something was not good. Anyway, I decided to install the new PCLinuxOS 64 KDE5 Magnum 2020 1015. The installation went well, but I was worried because I normally install the PCLinuxOS GRUB2 on the distro partition, not on the MBR, but it was not possible for me to do it this time, so I was predicting a mess trying to boot OpenMandriva, Mageia, MX Linux, and Elive. Read more

Microsoft Disables GitHub Repository of Open Source Project youtube-dl

Recording Industry Association of America, Inc. (RIAA) sent a notice to GitHub for hosting youtube-dl source code. Microsoft’s GitHub took immediate action to disable the repositories. But was it the right thing to do? Read more