Cassandra example CVE fixes may be applied to unmaintained versions as decided on a case-by-case basis. This is the official documentation for Apache Cassandra. Read through the Cassandra Basics to learn main concepts and how Cassandra works at a high level. The PGP keys used to sign releases are available in this KEYS file. Install the RPM build on CentOS and RHEL-based distributions if you want to install Cassandra using YUM. yaml, is sufficient to explore a simple single-node cluster. Install the Debian build on Ubuntu and other Debian-based distributions if you want to install Cassandra using APT. Apache Cassandra is an open source NoSQL distributed database trusted by thousands of companies for scalability and high availability without compromising performance. Since it is a distributed database, Cassandra can (and usually does) have multiple nodes. 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 domains like machine learning and artificial intelligence (AI). Oct 29, 2025 · Unmaintained older versions of Cassandra are archived here. Cassandra 5. Cassandra was initially designed at Facebook using a staged event-driven architecture (SEDA). To understand Cassandra in more detail, head over to the Docs. Apache Cassandra is an open source NoSQL distributed database trusted by thousands of companies for scalability and high availability without compromising performance. However, anything beyond running a single-node cluster locally requires additional configuration to various Cassandra configuration files. This initial design implemented a combination of Amazon’s Dynamo distributed storage and replication techniques and Google’s Bigtable data and storage engine model. These nodes communicate with one another through a protocol called gossip, which is a process of computer peer-to-peer communication. Additional information This section covers how to get started using Apache Cassandra and should be the first thing to read if you are new to Cassandra. . Cassandra’s default configuration file, cassandra. Browse through the Case Studies to learn how other users in our worldwide community are getting value out of Cassandra. If you would like to contribute to this documentation, you are welcome to do so by submitting your contribution like any other patch following these instructions. A node represents a single instance of Cassandra. ns pxw7 plge niva jsr7j pij sn zlr oeyk sv