使用Nginx的NHPM模块和jQuery进行的Comet测试
原文在这里：http://blog.jamieisaacs.com/2010/08/27/comet-with-nginx-and-jquery/
一直很想了解Comet的实现，正好看见了上面的这个文章，就装了个CentOS做了一下实验，过程如下：
1、下载软件和安装
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';

#access_log logs/access.log main;

sendfile on;
#tcp_nopush on;

#keepalive_timeout 0;
keepalive_timeout 65;

#gzip on;
server {
listen 81;
server_name localhost;

root /var/www/localhost;

location /cheetah {
push_channel_group pushmodule_cheetah;
location /cheetah/pub {
set $push_channel_id cheetah;
push_publisher;
push_message_timeout 5s; # Give the clients time
push_message_buffer_length 10; # to catch up
}
location /cheetah/sub {
set $push_channel_id cheetah;
push_subscriber;
send_timeout 3600;
}
}
}
}

启动nginx

listen.html

大功告成，只要在send.html里面输入内容并发送，listen.html就会接收到信息