Mobile Networking Challenges - Networking @Scale
summary
Facebook builds and ships a linkable library called mobile-proxygen that reuses Proxygen, Folly and OpenSSL to give apps drop-in HTTP/2/SPDY clients, modular transport connectors (socket, retry, happy eyeballs, DNS, TLS), and per-request scheduling. It enables certificate pinning and fast OpenSSL updates, runs traceroute on phones for path visibility, and avoids blocking on DNS by connecting with stale records then validating. Facebook reports over a billion mobile monthly users and ~25% of North American mobile time; the library lowers long‑tail latency and improves security and observability and is slated for open source release.
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chapters (9)
- 0:00Intro
- 1:52Proxygen Mobile
- 4:00Mobile networks
- 7:56Multiple platforms
- 13:24Mobile Proxygen
- 21:47Observability
- 23:50Security
- 27:23Performance
- 31:31FB Ecosystem benefits
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