No response

I wrote a module.
Receive a post request, and the request body is a big text with size of
hundreds of KBs. And get the whole body once.
Send the big text to a FS-Server through a socket connection.
Return a Json text. like {code:“200”; msg:“SUCESS”}

While performance testing with LoadRunner, it’s okay with a single
virtual user.
But there would be many errors with multi-user, even only 2.

I need to know what’s the problem~
I guess there may be something wrong with the memory between processes
of nginx.

I’m looking forward the answer.

Posted at Nginx Forum:
http://forum.nginx.org/read.php?2,25448,25448#msg-25448