nginx 配置 php upstream 负载分发

[root@pr-web01 pr]# cat /usr/local/nginx/conf/nginx.conf | grep -v ^$ | grep -v ^#
user  www www;
worker_processes auto;
error_log  /home/wwwlogs/nginx_error.log  notice;
pid        /usr/local/nginx/logs/nginx.pid;
worker_rlimit_nofile 51200;
events
        {
                use epoll;
                worker_connections 51200;
                multi_accept on;
        }
http
        {
                include       mime.types;
                default_type  application/octet-stream;
                server_names_hash_bucket_size 128;
                client_header_buffer_size 32k;
                large_client_header_buffers 4 32k;
                client_max_body_size 50m;
                sendfile on;
                tcp_nopush     on;
                keepalive_timeout 60;
                tcp_nodelay on;
                fastcgi_connect_timeout 300;
                fastcgi_send_timeout 300;
                fastcgi_read_timeout 300;
                fastcgi_buffer_size 64k;
                fastcgi_buffers 4 64k;
                fastcgi_busy_buffers_size 128k;
                fastcgi_temp_file_write_size 256k;
                gzip on;
                gzip_min_length  1k;
                gzip_buffers     4 16k;
                gzip_http_version 1.0;
                gzip_comp_level 2;
                gzip_types       text/plain application/x-javascript text/css application/xml;
                gzip_vary on;
                gzip_proxied        expired no-cache no-store private auth;
                gzip_disable        "MSIE [1-6]\.";
                #limit_conn_zone $binary_remote_addr zone=perip:10m;
                ##If enable limit_conn_zone,add "limit_conn perip 10;" to server section.
                server_tokens off;
                #log format
                log_format  access  '$remote_addr - $remote_user [$time_local] "$request" '
             '$status $body_bytes_sent "$http_referer" '
             '"$http_user_agent" $http_x_forwarded_for';
  upstream uSGmtsite
  {
        server 10.10.130.151:9000;
        server 10.10.130.152:9000;
  }
  server
  {
    resolver     10.10.1.20;
    listen 80;
    server_name pr.mangocity.com;
    index index.php index.shtml index.htm index.html;
    root /home/wwwroot/pr;
    autoindex off;
    autoindex_exact_size off;
    autoindex_localtime off;
    charset UTF-8;
    #limit_conn   crawler  20;
    include       mime.types;
    location ~ .*\.(php|php5)?$
    {
      fastcgi_pass  uSGmtsite;
      fastcgi_index index.php;
      fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; 
      include fastcgi_params; 
    }
    location ^~ /tdlw/ {
      auth_basic "Please input your Passwords!";
      auth_basic_user_file /usr/local/nginx/conf/tdlwpasswd;
      index  index.html;
    }
    location /status {
    stub_status on;
    access_log   off;
    }
  }
  server
  {
    resolver     10.10.1.20;
    listen 80;
    server_name news.mangocity.com;
    index index.php index.shtml index.htm index.html;
    root  /home/wwwroot/news;
    autoindex off;
    autoindex_exact_size off;
    autoindex_localtime off;
    charset UTF-8;
    #limit_conn   crawler  20;
    include       mime.types;
    location ~ .*\.(php|php5)?$
    {
      fastcgi_pass  uSGmtsite;
      fastcgi_index index.php;
      fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
      include fastcgi_params;
    }
    location /status {
    stub_status on;
    access_log   off;
    }
  }
server
        {
                listen 80 default;
                #listen [::]:80 default ipv6only=on;
                server_name www.lnmp.org;
                index index.shtml index.html index.htm index.php;
                root  /home/wwwroot/default;
                ssi on;
                ssi_silent_errors on;
                ssi_types text/shtml;
                #error_page   404   /404.html;
                location ~ [^/]\.php(/|$)
                        {
                                # comment try_files $uri =404; to enable pathinfo
                                try_files $uri =404;
                                fastcgi_pass  unix:/tmp/php-cgi.sock;
                                fastcgi_index index.php;
                                include fastcgi.conf;
                                #include pathinfo.conf;
                        }
                location /nginx_status {
                        stub_status on;
                        access_log   off;
                }
                location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
                        {
                                expires      30d;
                        }
                location ~ .*\.(js|css)?$
                        {
                                expires      12h;
                        }
                access_log  /home/wwwlogs/access.log  access;
        }
include vhost/*.conf;
}