JLJinhua Luoinluajit.io·Jan 5, 2024 · 1 min readAsynchronous nginx response header/body filterAs we all know, due to the design limit, nginx header/body filters are synchronous and you should not perform blocking operations such as blocking system calls, decrypting, decompressing, or forwarding responses to other servers for further processin...00
JLJinhua Luoinluajit.io·Jan 5, 2024 · 4 min readburl: A simple but flexible HTTP/3 testing framework based on bash and curlA few months ago, when I ported the QUIC patches from nginx mainline to APISIX and tried to test it, I found that test::nginx didn’t work very well. It uses the wrong listen directive parameter “http3” instead of “quic” (probably due to version diffe...00
JLJinhua Luoinluajit.io·Nov 27, 2022 · 9 min readImplement grpc client in rust language for openresty/NginxBack in 2019, when I work as individual postgresql/nginx consultant. Many clients ask me if they could do hybrid programming in nginx. They said, nginx/openresty is powerful and high performance, but the most significant drawback is it lacks of ecosy...00
JLJinhua Luoinluajit.io·Oct 14, 2022 · 3 min readNginx BlockingWhat's blocking? Nginx has one master process and multiple worker processes, and each worker process is single threading. It’s well known that NGINX uses an asynchronous, event‑driven approach to handling connections. This means that instead of crea...00
JLJinhua Luoinluajit.io·Oct 13, 2022 · 1 min readAnalyze Lua Memory Leak With SystemtapThe memory used by lua codes is managed by the GC, not calling malloc/free directly. The luajit GC uses mark-and-sweep algorithm. In simple words, it will links all gc objects in a global list. When the memory is in pressure, it would trigger recycle...00
