Hello, Habr. Currently, I am the head of the 'Network Engineer' course at OTUS. In anticipation of the launch of a new enrollment for the 'Network Engineer' course, I have prepared a series of articles on the VxLAN EVPN technology. There is a vast amount of material on working with VxLAN EVPN, so I want to compile various tasks and solutions to challenges in modern data centers. In the first part of the series […]
Weather Deity by Remarin The Mail.ru Cloud Solutions team presents a translation of an article by engineer Rahul Bhatia from Clairvoyant discussing the various file formats in big data, the most common features of Hadoop formats, and which format is best to use. Why different file formats are needed A significant bottleneck in the performance of applications supporting HDFS, such as MapReduce and […]
The release of the free 3D modeling package Blender 2.83 has been announced, which includes over 1250 fixes and improvements made over three months since the release of Blender 2.82. The main focus in preparing the new version was on performance optimization — the undo functionality, sketch pencil, and rendering preview have been accelerated. The Cycles engine added support for adaptive sampling. New sculpting tools have been included […]
Oracle has published a patch release for the virtualization system VirtualBox 6.1.10, which includes 7 fixes. The main changes in release 6.1.10 are: support for Linux kernel 5.7 has been ensured in guest system additions and the host environment; sound inputs and outputs are disabled by default when creating new virtual machines; guest system additions now handle resizing properly […]
Valve has released the Proton 5.0-8 project, which is based on the developments of the Wine project and aims to ensure the launch of gaming applications in Linux that were created for Windows and presented in the Steam catalog. The project's developments are distributed under the BSD license. Proton allows direct launching of gaming applications provided only for Windows in the Steam Linux client. The package includes an implementation of DirectX […]
Transcript of Alexey Lesovsky's 2015 report 'Deep dive into PostgreSQL internal statistics' Disclaimer from the author of the report: I would like to note that this report is dated November 2015 — more than 4 years have passed, and a lot has changed. The version discussed in the report, 9.4, is no longer supported. Over the past 4 years, 5 new releases have come out, introducing many innovations and improvements […]
Six months ago, we launched explain.tensor.ru — a public service for analyzing and visualizing SQL query plans for PostgreSQL. In the months that followed, we presented about it at PGConf.Russia 2020, prepared a summary article on speeding up SQL queries based on the recommendations it provides… but most importantly, we collected your feedback and observed real use cases. And now we are ready […]
Google has added a new feature to its Gboard keyboard for Android for emoji lovers. A whole new panel — Emoji Bar — has been added for accessing the most frequently used emojis, where users can find their favorite emoticons. Naturally, if the feature proves to be not very useful, or if the virtual keyboard takes up too much space, this panel can be hidden or reset. It seems that […]
An experimental release of the open implementation of WinAPI — Wine 5.10 — has taken place. Since the release of version 5.9, 47 bug reports have been closed and 395 changes have been made. The most significant changes are: the development of the WineD3D backend based on the Vulkan graphics API has continued; an initial implementation of a separate shared Unix library (.so) for NTDLL has been provided; support for Windows kernel drivers from anti-cheat systems has been improved […]
The release of the Pale Moon 28.10 web browser has been announced, a spin-off from the Firefox codebase aimed at ensuring greater efficiency, maintaining a classic interface, minimizing memory consumption, and providing additional customization options. Pale Moon builds are available for Windows and Linux (x86 and x86_64). The project's code is distributed under the MPLv2 (Mozilla Public License). The project adheres to a classic interface design, without […]
The support period for the LTS versions of the Linux kernels 5.4 and 4.19, maintained by Greg Kroah-Hartman and Sasha Levin, has been extended until December 2025 and 2024 respectively. The Linux kernel 4.19 is used in Debian 10, is considered by Google as the basis for the universal core of Android, and is supplied in the Android 10 platform, while the kernel 5.4 is used in Ubuntu […]
On June 5, Wine 5.10 was released. Wine is a compatibility layer for Windows applications with POSIX-compatible operating systems, translating Windows API calls into POSIX calls on the fly instead of emulating Windows logic like a virtual machine. In addition to over 47 fixes in the bug tracker, the new release includes: Ongoing development of the WineD3D backend on Vulkan. Work has begun on a separate UNIX library for NTDLL. Improved […]
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