scala.bythebay.io: Oliver Gould, Finagle as a proxy

ai.bythebay.io Nov 2025, Oakland, full-stack AI conference Scale By the Bay 2019 is held on November 13-15 in sunny Oakland, California, on the shores of Lake Merritt: https://scale.bythebay.io. Join us! ----- Finagle is an open-source, high-volume RPC client library which powers the application infrastructure of companies like Twitter, Pinterest and Soundcloud. In this talk, we introduce "linkerd", an open source RPC proxy built on Finagle and specifically designed for microservices. We describe how linkerd can be used to “wrap” polyglot multi-service applications in Finagle’s operational model, adding connection pooling, load balancing, failure detection, and failover mechanisms to existing applications with little to no code change. We demonstrate how this model allows polyglot applications to take advantage Finagle’s production-tested capabilities around scalability, reliability, and fault-tolerance, even in the presence of unpredictable traffic volumes and unreliable hardware. We describe how Finagle was used and extended in the creation of linkerd, and walk through the roadmap of upcoming features. Oliver Gould Buoyant CTO Carville-by-the-Sea, CA Twitter Tweet Websitetwitter.com/olix0r Oliver is the CTO of Buoyant, where he leads open source development efforts. Prior to joining Buoyant, he was a staff infrastructure engineer at Twitter, where he was the technical lead of Observability, Traffic, and Configuration & Coordination teams, and helped the company migrate from a monolithic Rails application to a massively distributed microservice application running on…