Keynote: 10 Million Spans Per Second: Lessons From Scaling OpenTelemetry at Reddit - Trevor Riles

A technical keynote from Reddit sharing how they scaled their OpenTelemetry distributed tracing platform to handle 25 billion events per hour (10M+ spans/second). Covers multi-language instrumentation across Python, Go, and JavaScript, Kafka pipelines, ClickHouse storage optimization, and adaptive sampling strategies. Ideal for platform engineers and SREs building or scaling observability infrastructure.