Cassandra

Cassandra is a highly scalable, distributed NoSQL database designed to manage vast amounts of data across many commodity servers without any single point of failure. Developed by Facebook and later open-sourced, Cassandra excels in handling large datasets that are spread across multiple locations, ensuring high availability and fault tolerance. It uses a decentralized, peer-to-peer architecture where all nodes in the cluster are equal, making it ideal for applications that require real-time, large-scale data storage with zero downtime. Cassandra’s column-oriented data model offers great flexibility, allowing developers to design complex, distributed data models that can efficiently handle a variety of use cases, including time-series data, user activity tracking, and content management. Its ability to scale linearly by simply adding more nodes to the cluster without affecting the performance makes it a preferred choice for companies dealing with big data, such as Netflix, Instagram, and Uber.