Capstone: analytics for a streaming platform

A full interview on real-time analytics for a video streaming service: clarifying questions, a million events a second and a petabyte of data, the Kafka, Flink, Spark, ClickHouse and BigQuery architecture, the event envelope and regional ingestion, a trending score from unique viewers, late data from planes and subways with real-time, preliminary and final numbers, a star schema for creators, query layers, scaling 10 times, edge cases and monitoring.