During 2015, Uber was going through rapid scalability. The internal engineering systems were constantly tested by the growing user base. Over the next two years, the number of internal services at Uber would grow from 500 to 2000, and standardizing the monitoring of all these different services became a priority.

After working with a variety of available tools, Uber’s engineering team decided that something new needed to be built internally. Jaeger is an open source distributed tracing tool that provides observability features throughout Uber’s microservices architecture.

Yuri Shkuro is an engineer at Uber, where he works on Jaeger and other infrastructure projects. He joins the show to discuss the history of engineering at Uber, the architecture of Jaeger, and the requirements for building and scaling a distributed tracing tool.