What is cassandra bc?

Cassandra is a highly scalable, open-source NoSQL database management system designed to handle large amounts of structured and unstructured data across multiple commodity servers. It was developed by Facebook and later released as an open-source project in 2008.

Cassandra is known for its fault-tolerance and high availability, making it a popular choice for applications that require high levels of scalability, performance, and always-on availability. It is horizontally scalable, meaning that it can add nodes to a cluster to handle increased data loads and provide better read and write performance.

Cassandra uses a distributed architecture that employs a masterless, peer-to-peer design, which allows for continuous availability and data consistency. It provides a flexible data model, with column families as the basic unit of organization, and supports secondary indexes and a query language called CQL (Cassandra Query Language).

Cassandra is used by a variety of industries, including finance, healthcare, retail, and social media, among others. Some of its notable users include Apple, Netflix, eBay, and Twitter.