• ecdysis | ËekdÉsÉs | noun the process of shedding the old skin (in reptiles) or casting off the outer cuticle (in insects and other arthropods). • How do you upgrade a network service, handling millions of requests per second around the globe, without disrupting even a single connection? • One of our solutions at Cloudflare to this massive challenge has long been ecdysis, a Rust library that implements graceful process restarts where no live connections are dropped, and no new connections are refused. Last month, we open-sourced ecdysis, so now anyone can use it. • After five years of production use at Cloudflare, ecdysis has proven itself by enabling zero-downtime upgrades across our critical Rust infrastructure, saving millions of requests with every restart across Cloudflareâs global network. • Itâs hard to overstate the importance of getting these upgrades right, especially at the scale of Cloudflareâs network. • Many of our services perform critical tasks such as traffic routing, TLS lifecycle management, or firewall rules enforcement, and must operate continuously.

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  • ecdysis | ËekdÉsÉs | noun the process of shedding the old skin (in reptiles) or casting off the outer cuticle (in insects and other arthropods). How do you upgrade a network service, handling millions of requests per second around the globe, without disrupting even a single connection? One of our solutions at Cloudflare to this massive challenge has long been ecdysis, a Rust library that implements graceful process restarts where no live connections are dropped, and no new connections are refused. Last month, we open-sourced ecdysis, so now anyone can use it. After five years of production us
  • Cloudflare has open‑sourced ecdysis, a Rust library that enables graceful process restarts for high‑traffic network services. After five years of production use, ecdysis allows Cloudflare to upgrade critical services-such as traffic routing, TLS management, and firewall enforcement-without dropping live connections or refusing new ones. The library eliminates the brief downtime that occurs when a service stops and a new instance starts, thereby preventing millions of failed requests across Cloudflare’s global network. By exposing ecdysis on GitHub, crates.io, and docs.rs, Cloudflare invites the wider community to adopt its zero‑downtime upgrade approach.

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