Apache Cassandra is an open source NoSQL distributed database trusted by thousands of companies for scalability and high availability without compromising performance.

This is the official documentation for Apache Cassandra. If you would like to contribute to this documentation, you are welcome to do so by submitting your contribution like any other patch …

Oct 29, 2025 · Unmaintained older versions of Cassandra are archived here. CVE fixes may be applied to unmaintained versions as decided on a case-by-case basis. The PGP keys used to sign releases …

Cassandra automatically replicates that data around your different data centers. Your application can write data to a Cassandra node on the U.S. west coast, and that data is automatically available in …

Read through the Cassandra Basics to learn main concepts and how Cassandra works at a high level. To understand Cassandra in more detail, head over to the Docs. Browse through the Case Studies …

Sep 5, 2024 · The Cassandra project is happy to announce the general availability of Apache Cassandra® 5.0! This major release marks a significant milestone in the evolution of the world’s …

Apache Cassandra configuration settings are configured in the cassandra.yaml file that can be edited by hand or with the aid of configuration management tools. Some settings can be manipulated live using …

Install the RPM build on CentOS and RHEL-based distributions if you want to install Cassandra using YUM. Install the Debian build on Ubuntu and other Debian-based distributions if you want to install …

Cassandra 5.0 introduces vector search, which leverages storage-attached indexing and dense indexing techniques to transform data exploration and analysis. This update is especially impactful for …

Here are known Cassandra client drivers organized by language. Before choosing a driver, you should verify the Cassandra version and functionality supported by a specific driver.