Blog Section
Hello! My name is Danil Lipovoy, and our team at Sbertech has started using HBase as an operational data store. While studying it, we have gained experience that we wanted to systematize and describe (we hope it will be useful for many). All experiments listed below were conducted with HBase versions 1.2.0-cdh5.14.2 and 2.0.0-cdh6.0.0-beta1. General architecture Writing data to HBASE Reading data from HBASE […]
In the fall of 2019, Check Point discontinued support for R77.XX versions, necessitating an upgrade. Much has been discussed about the differences between versions, as well as the pros and cons of transitioning to R80. Let's focus on how to update Check Point virtual appliances (CloudGuard for VMware ESXi, Hyper-V, KVM Gateway NGTP) and what might go wrong. So, we have […]
Books, as we know them, have not been around for very long. In ancient times, the primary medium for information was papyrus, but after the ban on its export, parchment took its place. As the Roman Empire declined, books transitioned from scrolls to volumes made by sewing together sheets of parchment. This process happened gradually, some […]
DilOS is an Illumos-based platform with a Debian package manager (dpkg + apt) that is licensed under MIT. DilOS will be oriented towards server-side virtualization, such as Xen (dilos-xen3.4-dom0 is currently available), zones, and tools for use in small businesses and by home users (Example: as a file server with a torrent client featuring a WEB GUI, Apache).
More than 50 companies, including Privacy International, Digital Rights Foundation, DuckDuckGo, and Electronic Frontier Foundation, have sent an open letter to Google’s CEO Sundar Pichai. The authors of the letter note that the pre-installed software on Android represents a privacy threat to consumers. All Android OEM manufacturers pre-install their devices with applications that cannot be removed and that may bypass user consent.
It has been announced that the first limited batch of the PinePhone (Braveheart Edition), developed by the Pine64 community, is now available for everyone (note: the first batch is already sold out). Mass production is scheduled to begin in March 2020. As initially stated, the price of the smartphone is $150. The device is designed for enthusiasts who are tired of Android and want a fully controllable and secure environment.
The release of GNU Guile 3.0 has taken place, a free implementation of the functional programming language Scheme, supporting the embedding of code in applications written in other programming languages. Guile can be used as a language for developing extensions for applications, defining configurations, or developing components for connecting various primitives provided by applications. Guile is the official extension development language for the GNU operating system.
The Fedora project developers announced the stabilization of the Fedora CoreOS distribution and its readiness for widespread use. Fedora CoreOS is promoted as a unified solution for running environments based on isolated containers, replacing the Fedora Atomic Host and CoreOS Container Linux products. Support for the CoreOS Container Linux distribution will be discontinued in six months, while support for Fedora Atomic Host will also end shortly.
As a rule, there is always a need to provide a dedicated pool of resources to an application for its proper and stable functioning. But what if multiple applications are running on the same infrastructure? How can we ensure each one has the minimally required resources? How can we restrict resource consumption? How can we properly distribute the load among nodes? How can we ensure the functioning of the horizontal […]
Unfortunately, this term does not have a good English equivalent. Wikipedia translates it as 'multitenancy'. Sometimes it is referred to as 'multiple ownership'. These terms can be somewhat misleading, as the subject is not fundamentally related to rental or ownership. It is primarily a matter of software architecture and the organization of its operation. The latter is equally important. We began […]
Vasya Pupkin is currently writing: expressing his stream of thoughts in a notebook. But Vasya encountered a problem: the page has ended. And it happened on the right side of the spread, which is very inconvenient. This means that if Vasya needs to write the next batch of his thoughts while having the previous step in front of him, he will have to scroll the sheet of paper […]
I have several topics in store that I could write about endlessly. One of them is 'idols'. Of course, this is not a list of the most respected people in the world. I think that such a list would be difficult for anyone to compile, even with a strong desire to do so. For instance, Einstein is not on my list, but he certainly deserves […]