Apache Cassandra

Cassandra is a wide-column store database designed for scalability and high availability without compromising performance. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure make it the perfect platform for mission-critical data.

When to Use

• High-Velocity Write Ingestion: Logging millions of writes per second across IoT sensor streams, messaging systems, and time-series metrics.
• Zero-Downtime Multi-Datacenter Replication: Geographically distributed systems requiring peer-to-peer active-active masterless replication.
• Linear Horizontal Scalability: Scaling throughput predictably by adding commodity hardware nodes without cluster downtime.
• Predictable Query Latency: Serving high-concurrency key-value and partition-key lookups under 5 milliseconds.

Quick Start

CREATE TABLE users (
  user_id UUID PRIMARY KEY,
  name text,
  email text
);