Lessons learned from 3+ years in the trenches with some of the biggest Cassandra database use cases on the planet

Lesson 1

Let me share with you the first of two tragic Cassandra hardware utilization stories. A big and important customer of mine, an online personal financial platform, had been running mission critical customer facing systems on Cassandra in production for years. Their business and data grew over time. Every year they procured more hardware, rolled out more data environments, and grew their footprint.