id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
496	Windows upstream 60 proxy_pass timeout	Cruz Fernandez		"Normal usage of proxy_pass produces a delay of 60 seconds (on a second request) on Windows 7 and Windows 2008 on 64 bits.

The configuration is like this:

<snip>
location /api {
  proxy_pass http://localhost:3000;
  proxy_set_header X-Real-IP $remote_addr;
}
</snip>
 
First request goes fine, second request is being loaded after 60 seconds. An error appears on the error log of upstream error:

2014/01/30 10:32:32 [error] 6760#3604: *1 upstream timed out (10060: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond) while connecting to upstream, client: 127.0.0.1, server: localhost, request: ""GET /api/xxxxx HTTP/1.1"", upstream: ""http://[::1]:3000/api/xxxxx"", host: ""localhost""

Reported on the forum:
http://forum.nginx.org/read.php?15,239760,239760
and
http://forum.nginx.org/read.php?5,245516,247010

Working version is Nginx 1.2.9.

workaround:
Can be added the following parameter to avoid waiting for 60 seconds (this is a good solution if the backend is node.js, as it connects pretty fast):

proxy_connect_timeout 2s;
"	defect	closed	major		nginx-module	1.5.x	invalid			Win7 and Win 2008 server 64 bits	1.5.x and 1.4.4