How Roblox Used Theta Sketches to Scale Creator Analytics

This post details the integration of Theta Sketch algorithms into Roblox's creator analytics system to improve the scalability and efficiency of OLAP queries. It highlights the use of approximation algorithms alongside data rollup techniques to provide analytics for millions of Roblox experiences, enabling an analytics query engine to serve over 6 million queries per day from 86 TB of data using a 120-core processing cluster.