configuring multiple nginx workers

[Charles Orth]

Hi Gurus,

I am looking to develop a discovery service feature on top of nginx.
I have read http://www.aosabook.org/en/nginx.html and I have a couple 
questions
based on what I've seen in the code base.

If I have multiple workers configured using a single servers as an endpoint.
I want to leverage the ngx_http_upstream_init_main_conf functions to do 
the connection pooling for my service.

I see there is some mutex locking commented out in the code. What I want 
to confirm is if I have 2 or more workers configured, each worker has 
its own memory allocation for  ngx_http_upstream_main_conf_t  *umcf = 
conf; Thus we don't have to do any mutex locking between the separate 
worker processes. Each worker will have a pooled set of connections to 
the same endpoint.

Is my understanding correct?

Any help is greatly appreciated.

Charles