Viaduct, Five Years On: Modernizing the Data-Oriented Service Mesh

A more powerful engine and a simpler API for our data-oriented mesh By: Adam Miskiewicz, Raymie Stata In November 2020 we published a post about Viaduct, our data-oriented service mesh. Today, we’re excited to announce Viaduct is available as open-source software (OSS) at https://github.com/airbnb/viaduct . Before we talk about OSS, here’s a quick update on Viaduct’s adoption and evolution at Airbnb over the last five years. Since 2020, traffic through Viaduct has grown by a factor of eight. The number of teams hosting code in Viaduct has doubled to 130+ (with hundreds of weekly active developers). The codebase hosted by Viaduct has tripled to over 1.5M lines (plus about the same in test code). We’ve achieved all this while keeping operational overhead constant, halving incident-minutes, and keeping costs growing linearly with QPS. What’s the same? Three principles have guided Viaduct since day one and still anchor the project: a central schema served by hosted business logic via a re-