“awk '($9 ~ /302/)' /var/log/nginx/access.log | awk '{print $7}' | sort | uniq -c | sort -rn”— KeyCDN, keycdn.com
“But the asynchronous, event‑driven approach still has a problem. Or, as I like to think of it, an ‘enemy’. And the name of the enemy is: blocking. Unfortunately, many third‑party modules use blocking calls, and users (and sometimes even the developers of the modules) aren’t aware of the drawbacks. B…”— Valentin Bartenev, nginx.com
“Using the proxy_cache directive, we can specify that the backcache cache zone should be used for this context. Nginx will check here for a valid entry before passing to the backend.”— Justin Ellingwood, digitalocean.com