ITPUB

Apr 3, 2016 · Operations

Why Nginx Proxy Stops Accepting New Connections with fastsocket – A Full Diagnosis

The article walks through a real‑world investigation of an Nginx HTTP forward proxy on an Alibaba Cloud server that stops accepting new connections after a while, detailing hypothesis testing, strace analysis, fastsocket feature toggles, accept_mutex behavior, and the final fix by adjusting the NIC's RPS settings.