Arun Gupta wrote:
> Thanks for the response!
>
> nginx was built using --with-debug, here is my complete CLI:
>
> ./configure --prefix=/usr/local/nginx --sbin-path=/usr/sbin --with-debug
> --with-http_ssl_module
>
> nginx and GlassFish gem are all running on the same box for my
> experiment, i.e. 127.0.0.1. So I updated the existing events entry as:
>
> events {
> worker_connections 1024;
> debug_connection 127.0.0.1;
> }
>
> Saw no new messages in access.log and lots of messages in error.log but
> no information on the port being servicing the request.
>

This should be in error.log

May be I misunderstood your question, but if you want to know upstream port, you may add to
access_log format variable $upstream_addr

http://wiki.nginx.org/NginxHttpUpstreamModule#.24upstream_addr
http://wiki.nginx.org/NginxHttpLogModule

--
Anton Yuzhaninov