Nginx.conf

• Error log file: /var/log/nginx/error.log
• Access log file: /var/log/nginx/access.log

Directives

sendfile on;

Track Application Response time in Nginx

1) Add to /etc/nginx/nginx.conf

http://nginx.org/en/docs/http/ngx_http_log_module.html

log_format timed_combined '$remote_addr - $remote_user [$time_local] '
    '"$request" $status $body_bytes_sent '
    '"$http_referer" "$http_user_agent" '
    '$request_time $upstream_response_time $pipe';

$pipe “p” if request was pipelined, “.” otherwise

$request_time

$upstream_response_time

2) Modify access_log directive to use new format:

access_log /var/log/nginx/yourdomain.com.access.log timed_combined;

request_time This shows how long Nginx dealt with the request

upstream_response_time Gives us the time it took our upstream server (in this case Apache/mod_wsgi) to respond

pipe Shows ‘p’ in case the request was pipelined.

See also

• Web server: Nginx: /etc/nginx/nginx.conf, nginx -t, Nginx logs, Nginx change log, PHP, php-fpm, Let's encrypt, Nginx directives, Reverse Proxy, Configure HTTP redirection Nginx, Return, proxy_pass (Reverse proxy), ngx_http_rewrite_module, /etc/nginx/sites-enabled/, error.log, access.log, /nginx status, AIO
• Apache web server
• Reverse proxy

https://docs.nginx.com/nginx/admin-guide/web-server/serving-static-content/#enabling-sendfile

https://lincolnloop.com/blog/tracking-application-response-time-nginx/

https://stackoverflow.com/a/39260524