Help with debugging - stall on response size is a symptom but what is the cause?

[Maxim Dounin]

Hello!

On Fri, Feb 10, 2012 at 10:31:33AM -0500, LetsPlay wrote:

> Hi, I'm new to nginx and am trying to use it as a front end web server
> to a java-based Play framework web app, via reverse proxy.  But I'm
> getting strange timeout behaviour and am not sure how to proceed with
> debugging.
> 
> The full details are at
> http://groups.google.com/group/play-framework/browse_thread/thread/c853a579d6015d28/e6cf2a53333aa921?lnk=gst&q=nginx#e6cf2a53333aa921
> 
> I've been comparing debug-mode access logs for pass and fail cases, but
> cannot fathom what nginx is doing.
> 
> How could I proceed with debugging?  I'm working on the assumption that
> its my system configuration which is causing the problem - I haven't
> seen any other reference to this kind of problem.  I'm running a box
> with Ubuntu 11.10 x86_64, and nginx was installed from the Ubuntu repo. 
> More than happy to provide logs.

Please provide debug log and nginx -V output.

Maxim Dounin