NginxHttpStubStatusModule Stats Incorrect?

[Nathan Folkman]

Seeing something that doesn't add up after adding the following rewrite rules:

server {
        listen 80;
        server_name _;
        underscores_in_headers on;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_connect_timeout 10;
        proxy_send_timeout 30;
        proxy_read_timeout 30;
        charset utf-8;

        if ($host ~* "www.playfoursquare.com") {
            rewrite ^(.*)$ http://foursquare.com$1 permanent;
        }

        if ($host ~* "playfoursquare.com") {
            rewrite ^(.*)$ http://foursquare.com$1 permanent;
        }

        if ($host ~* "www.foursquare.com") {
            rewrite ^(.*)$ http://foursquare.com$1 permanent;
        }
	
	...
}

Both the "reading" and "active" stats are growing linearly since I have the change. The odd thing is that non of the other system stats agree with this (load, interrupts, etc.) Also, when I actually get the current active connections, it doesn't seem to agree:

netstat -ant | grep EST | wc -l
408

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Any ideas? Thanks!

- Nathan