Apache Cassandra

Hybrid masterless architecture with no single points of failure, enabling continuous availability even during data center outages.

Linear scalability for read and write throughput as new machines are added, with no downtime or interruption to applications.

Proven fault tolerance with support for replicating data across multiple datacenters to survive regional outages.

Choice between synchronous or asynchronous replication for each update, optimized with features like Hinted Handoff and Read Repair.

Consistently outperforms popular NoSQL alternatives due to fundamental architectural choices and optimizations.

Audit logging tracks data manipulation and schema changes with minimal performance impact; includes tools for workload capture and replay.

Streams data between nodes during scaling operations with Zero Copy Streaming for faster, more elastic architecture, especially in cloud and Kubernetes environments.

Tested on clusters as large as 1,000 nodes with various real-world use cases and fault-injection testing to ensure reliability and stability.