Apache Cassandra 4.1 released with improved Lightweight Transaction performance

Apache Cassandra 4.1 is now available with updates to improve ease of use.

Apache Cassandra is a distributed NoSQL database, and is an open-source project under the Apache Software Foundation.

The 4.1 release is the first version that follows the new yearly release cycle that was implemented last year. The release will be supported for three years.

Ecosystem improvements in Apache Cassandra 4.1 include a new Memtable API that provides pluggable persistent memory, improved Lightweight Transaction performance via Paxos v2, pluggable external schema manager services, and pluggable SSLContext creation.

According to a blog post, the Paxos optimizations improve latency and halve the number of round trips needed to achieve consensus. It also guarantees linearizability across range movements that are similar to what would be expected from a database with strong consistency.

“Apache Cassandra is open source technology at its best. It exceeds our database performance goals and is a critical database we are using for providing a seamless streaming experience to our customers worldwide,” said Vinay Chella, Senior Engineering Leader at Netflix. “Apache Cassandra is constantly improving. The optimization of the Paxos consensus protocol implementation means a 50% performance improvement for Lightweight Transactions (LWTs), which is what you would expect from a database with a reputation for performance.”

Updates pertinent to Cassandra Query Language (CQL) developer include the ability to group by time range, the ability to use CONTAINS and CONTAINS KEY conditions in conditional updates, and the ability to use IF EXISTS and IF NOT EXISTS in ALTER statements.

Cassandra operators can look forward to updates like configurable system level guardrails, partition denylisting tool, improved syntax to cassandra.yaml, new systems tables, the ability to monitor top partitions by size, and improvements to nodetool, backup and restore.

Security updates include credentials file support to CSQLSH, the ability to grant permission for all tables in a keyspace, support for pre-hashed passwords in CQL, and support for PEM based key material for SSL.

“With an incredibly stable core that was delivered in 4.0, the project is now building on that milestone toward a more cloud native future,” said Mick Semb Wever, Apache Cassandra PMC member. “The latest release emphasizes externalizing important key functions into a pluggable interface, allowing developers to extend Cassandra without altering the stable core code. Organizations using Cassandra can be more selective how each combination of features is deployed and can add a layer of flexibility to future use cases that may not exist today. This includes storage engine choice, security components, schema and user management. Users of Cassandra will see the decoupled innovation in the ecosystem in the future without the need for a major release of the project.”

The post Apache Cassandra 4.1 released with improved Lightweight Transaction performance appeared first on SD Times.

from SD Times https://ift.tt/G82hf4F

A guide to data integration tools

CData Software is a leader in data access and connectivity solutions. It specializes in the development of data drivers and data access technologies for real-time access to online or on-premise applications, databases and web APIs. The company is focused on bringing data connectivity capabilities natively into tools organizations already use. It also features ETL/ELT solutions, enterprise connectors, and data visualization. Matillion ’s data transformation software empowers customers to extract data from a wide number of sources, load it into their chosen cloud data warehouse (CDW) and transform that data from its siloed source state, into analytics-ready insights – prepared for advanced analytics, machine learning, and artificial intelligence use cases. Only Matillion is purpose-built for Snowflake, Amazon Redshift, Google BigQuery, and Microsoft Azure, enabling businesses to achieve new levels of simplicity, speed, scale, and savings. Trusted by companies of all sizes to meet...

Olive and NTT DATA Join Forces to Accelerate the Global Development and Deployment of AI Solutions

U.S.A., March 14, 2021 — Olive , the automation company creating the Internet of Healthcare, today announced an alliance with NTT DATA , a global digital business and IT services leader. The collaboration will fast track the creation of new healthcare solutions to transform the health experience for humans — both in the traditional healthcare setting and at home. As a member of Olive’s Deploy, Develop and Distribute Partnership Programs , NTT DATA is leveraging Olive’s open platform to innovate, build and distribute solutions to Olive’s customers, which include some of the country’s largest health providers. Olive and NTT DATA will co-develop new Loops — applications that work on Olive’s platform to provide humans real-time intelligence — and new machine learning and robotic process automation (RPA) models. NTT DATA and Olive will devote an early focus to enabling efficiencies in supply chain and IT, with other disciplines to follow. “This is an exciting period of growth at Olive, so...

2022: The year of hybrid work

Remote work was once considered a luxury to many, but in 2020, it became a necessity for a large portion of the workforce, as the scary and unknown COVID-19 virus sickened and even took the lives of so many people around the world. Some workers were able to thrive in a remote setting, while others felt isolated and struggled to keep up a balance between their work and home lives. Last year saw the availability of life-saving vaccines, so companies were able to start having the conversation about what to do next. Should they keep everyone remote? Should they go back to working in the office full time? Or should they do something in between? Enter hybrid work, which offers a mix of the two. A Fall 2021 study conducted by Google revealed that over 75% of survey respondents expect hybrid work to become a standard practice within their organization within the next three years. Thus, two years after the world abruptly shifted to widespread adoption of remote work, we are dec...

Best Programming Master

Search This Blog