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GNU/Linux Storage: NVMe, CSDs, and 'Big Data'

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  • Micron Working On NVMe SSD Abrupt Shutdown Support For Linux - Phoronix

    The NVMe specification provides for an abrupt shutdown mode over the normal/safe shutdown command if needing to quickly get the NVMe solid-state storage ready for powering off as quickly as possible. Currently the Linux kernel isn't making use of the NVMe abrupt shutdown command but a proposal by Micron is looking to begin its usage. 

    A patch set sent out on Monday by a Micron engineer wires up the abrupt shutdown support for NVMe SSD. The initial use-case is over platforms with a very limited back-up power supply and if knowing a power loss is imminent, to perform the abrupt shutdown of the NVMe SSD. 

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  • Linux as a computational storage panacea? - Open Source Insider

    Linux is widely agreed to be key to the onward development of computational storage.

    As we have noted before, computational storage enables a software and hardware system to offload and alleviate constraints on existing compute, memory and storage.

    So given this proposition, how should software engineers identify, target and architect specific elements of the total processing workload to reside closer to computational storage disks (CSDs) and what role can Linux play in this process?

    The open ecosystem of open source Linux has been lauded as a key facilitating technology to creating the secure containerisation principles that express key elements of computational storage.

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  • The Apache Cassandra Project Releases Apache® Cassandra™ v4.0, the Fastest, Most Scalable and Secure Cassandra Yet

    The Apache Cassandra Project released today v4.0 of Apache® Cassandra™, the Open Source, highly performant, distributed Big Data database management platform.

    "A long time coming, Cassandra 4.0 is the most thoroughly tested Cassandra yet," said Nate McCall, Vice President of Apache Cassandra. "The latest version is faster, more scalable, and bolstered with enterprise security features, ready-for-production with unprecedented scale in the Cloud."

Apache Cassandra 4.0 Big Data Database Management System

  • Apache Cassandra 4.0 Big Data Database Management System Released

    pache Cassandra 4.0 is finally available as the latest major feature release to this widely-used NoSQL database management system.

    Cassandra 4.0 further juices the performance with scaling operations being up to five times faster, 25% faster throughput for reads and writes, and also lower latency work. Cassandra 4.0 also has improvements to yield better consistency, better security and observability, new configuration settings, better compression support, and more.

Apache Cassandra 4.0 advances open source database

  • Apache Cassandra 4.0 advances open source database

    After three years of development, the open source Apache Cassandra 4.0 database is now generally available.

    Apache Cassandra is a distributed NoSQL database that was originally developed at Facebook. In recent years, the open source technology has received support from multiple vendors that have also built commercial services for the database.

    Cloud service providers that have Apache Cassandra database-as-a-service offerings include AWS and Microsoft, which entered the Cassandra segment in March 2021. Beyond the big public cloud providers, DataStax provides a database-as-a-service that is based on Cassandra. Other vendors that provide Cassandra as a service include Aiven, which raised $100 million in March, and Instaclustr.

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  • Apache Cassandra 4.0 finally arrives

    Well, that took a while. Well over a year ago the Apache Software Foundation announced the beta of Cassandra 4.0. Developers were eager to get their hands on this, the most popular of the NoSQL databases. Alas, it took longer than many had hoped. Then at the 11th hour, a nasty bug was found, which further delayed Cassandra's release for a few days. But, at long last Apache Cassandra 4.0 is here and ready to tear into your petabytes of data.

Apache Cassandra 4.0 Features Increased Speed And Scalability

  • Apache Cassandra 4.0 Features Increased Speed And Scalability

    Nearly six years on from the release of Apache Cassandra 3.0, the community behind the popular open-source distributed database has announced the release of v4.0 of Apache Cassandra. Patrick McFadin, VP of Developer Relations at DataStax, and Ben Bromhead, CTO of Instaclustr, join TFiR Newsroom to talk more about the release.

    The first issue to be addressed is the importance Cassandra holds in the modern world. McFadin starts off by talking about what workloads Cassandra is focused on, i.e. websites and mobile applications. McFadin says, “When you use a mobile app on your phone, you’re probably using Cassandra.”

Cassandra 4.0 finally out of the gates after being delayed...

  • Cassandra 4.0 finally out of the gates after being delayed for last-minute bug swat

    After an Apple engineer called an 11th-hour halt to the release, Cassandra 4.0 has finally launched flaunting newfound stability, speed and consistency, according to the open-source project's users and contributors.

    The code for wide-column database – which has been popular as a distributed system with users including Apple, Instagram and eBay – officially went live today, around six years after 3.0's debut.

    The developer community is said to have invested the time in wanting to make this the most stable release of the NoSQL system, and ship with no known bugs.

    Speaking to The Register in the run-up to launch, Vinay Chella, engineer and cloud data architect at Netflix, said the new model for streaming data between nodes made it between four and five times faster, accelerating the recovery from failed nodes, and reducing costs.

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Fear, Uncertainty, Doubt/Misinformation

today's howtos

  • How to Install Linux Malware Detect (Maldet) on Fedora 34 - LinuxCapable

    Linux Malware Detect (LMD), also known as Maldet, is a malware scanner for Linux released under the GNU GPLv2 license. Maldet is quite popular amongst sysadmins and website devs due to its focus on the detection of PHP backdoors, dark mailers, and many other malicious files that can be uploaded on a compromised website using threat data from network edge intrusion detection systems to extract malware that is actively being used in attacks and generates signatures for detection.

  • How to Install Podman on Debian 11

    Developed by RedHat, Podman is a free and open-source daemonless container engine designed to be a drop-in replacement for the popular Docker runtime engine. Just like Docker, it makes it easy to build, run, deploy and share applications using container images and OCI containers ( Open Container Initiative ). Podman uses user and network namespaces and In comparison to Docker, Podman is considered more isolated and secure. Most commands in Docker will work in Podman. and so if you are familiar with running Docker commands, using podman will be such a breeze.

  • How to Install ArangoDB on Ubuntu Linux

    Every good application requires a database management system to match. As we know there are many of them and in many different categories. Today we will talk about how to install ArangoDB on Linux. In a nutshell, ArangoDB is an open-source NoSQL database system, and it is easily administered via the integrated web interface or the command-line interface.

  • How to Install Java 17 LTS (JDK 17) on Ubuntu 20.04 - LinuxCapable

    Java is a general-purpose, class-based, object-oriented multipurpose programming language that is popular due to the design of having lesser implementation dependencies, meaning that the compiled Java code can be run on all platforms that support Java without the need for recompilation. Java is also fast, secure, and reliable, therefore. It is widely used for developing Java applications in laptops, data centers, game consoles, scientific supercomputers, cell phones, etc. JDK 17 (JDK 17) has brought forward new language enhancements, updates to the libraries, support for new Apple computers, removals and deprecations of legacy features, and work to ensure Java code written today will continue working without change in future JDK versions. In the following tutorial, you will learn how to install the latest Java 17 (JDK 17) on Ubuntu 20.04.

Astro Pi 2: New Raspberry Pi hardware with updated camera, sensors to head to the ISS this year

Good news for earthbound Pi-tinkerers hoping to get their code into orbit: a follow-up to 2015's Astro Pi is due to head to the International Space Station (ISS) this year. Time has moved on a bit since the Principia mission of Tim Peake where the first units were installed aboard the orbiting outpost. While over 54,000 participants from 26 countries have since had code run on the hardware, the kit has fallen somewhat behind what is available on Earth. To that end, some new units are due to be launched, replete with updated hardware. In this case, heading to orbit will be Raspberry Pi 4 Model B units with 8GB RAM, the Raspberry Pi High Quality Camera (a 12.3MP device) and the usual complement of gyroscope, accelerometer, magnetometer, humidity, temperature and pressure sensors for users to code against. Read more Also: Tracking Maximum Power Point For Solar Efficiency | Hackaday

pgAdmin 4 v5.7, More PostgreSQL News, and SQLite Linux Tutorial for Beginners

  • PostgreSQL: pgAdmin 4 v5.7 Released

    The pgAdmin Development Team is pleased to announce pgAdmin 4 version 5.7. This release of pgAdmin 4 includes 26 bug fixes and new features. For more details please see the release notes. pgAdmin is the leading Open Source graphical management tool for PostgreSQL. For more information, please see the website.

  • PostgreSQL Weekly News - September 19, 2021

    Pgpool-II 4.2.5, a connection pooler and statement replication system for PostgreSQL, released Database Lab 2.5, a tool for fast cloning of large PostgreSQL databases to build non-production environments, released. pgexporter 0.1.0, a Prometheus exporter for PostgreSQL, released

  • SQLite Linux Tutorial for Beginners

    This SQLite Linux tutorial is intended for beginners who wish to learn how to get started with SQLite database. SQLite is one of the world’s most widely-used Database programs. So, what is a Database, and what is SQLite?