Cassandra

ELI5 — The Vibe Check

Cassandra is like a massive library system spread across every city in the world. It's built to handle insane amounts of data and writes without breaking a sweat. Netflix uses it, so you know it can handle your side project's 12 users.

Real Talk

Apache Cassandra is a wide-column, distributed NoSQL database designed for high availability and linear scalability. It uses a peer-to-peer architecture with no single point of failure, tunable consistency levels, and a partition-based data model optimized for write-heavy workloads across multiple data centers.

Show Me The Code

CREATE TABLE events (
  user_id UUID,
  event_time TIMESTAMP,
  event_type TEXT,
  PRIMARY KEY (user_id, event_time)
);

When You'll Hear This

"Cassandra can handle millions of writes per second across regions." / "We use Cassandra for our time-series event data."