ht_upsteream
ht_core
Memcache
ht_fastcgi
Load configurationLaunch workersNon-stop upgrade
FastCGI
ht_proxy
HTTP
proxycache
Worker
Multiplexinvia kevent/epoll/select
Cache manager
Cache loader
Memcached
HTTP/HTTPS
· Event-driven· Asynchronous· Non-blocking
Web server
Backend
Master
Application server
