nginx的反向代理配置与优化

/usr/sbin/groupadd www
/usr/sbin/useradd -g www www

wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-7.8.tar.gz
tar zxvf pcre-7.8.tar.gz
cd pcre-7.8/
./configure
make && make install

wget http://sysoev.ru/nginx/nginx-0.7.58.tar.gz
tar zxvf nginx-0.7.58.tar.gz
cd nginx-0.7.58/
./configure --user=www --group=www --prefix=/usr/local/webserver/nginx --with-http_stub_status_module --with-http_ssl_module --with-cc-opt='-O2' --with-cpu-opt=opteron
make && make install

user    www www;
worker_processes 4;

# [ debug | info | notice | warn | error | crit ]
error_log    /usr/local/webserver/nginx/logs/nginx_error.log    crit;
pid                /usr/local/webserver/nginx/nginx.pid;
#Specifies the value for maximum file descriptors that can be opened by this process.
worker_rlimit_nofile 51200;
events
{
   use epoll;
   worker_connections 51200;
}

http
{
   include        mime.types;
   default_type    application/octet-stream;
   source_charset GB2312;
   server_names_hash_bucket_size 256;
   client_header_buffer_size 256k;
   large_client_header_buffers 4 256k;

   #size limits
   client_max_body_size             50m;
   client_body_buffer_size        256k;
   client_header_timeout     3m;
   client_body_timeout 3m;
   send_timeout             3m;
#参数都有所调整.目的是解决代理过程中出现的一些502 499错误    
   sendfile on;
   tcp_nopush         on;
   keepalive_timeout 120; #参数加大,以解决做代理时502错误
   tcp_nodelay on;
       
   include     vhosts/upstream.conf;
   include     vhosts/bbs.jbxue.conf;
}

upstream bbs.jb200.com {
    server 192.168.1.4:8099;
 }

server
     {
            listen             80;
            server_name    bbs.jbxue.conf;
            charset GB2312;
            index index.html index.htm;
            root    /date/wwwroot/jbxue/;

                location ~ ^/NginxStatus/ {
       stub_status on;
       access_log off;
}

         location / {
             root    /date/wwwroot/jbxue/;
             proxy_redirect off ;
             proxy_set_header Host $host;
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header REMOTE-HOST $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
             client_max_body_size 50m;
             client_body_buffer_size 256k;
             proxy_connect_timeout 30;
             proxy_send_timeout 30;
             proxy_read_timeout 60;
             proxy_buffer_size 256k;
             proxy_buffers 4 256k;
             proxy_busy_buffers_size 256k;
             proxy_temp_file_write_size 256k;
             proxy_next_upstream error timeout invalid_header http_500 http_503 http_404;
             proxy_max_temp_file_size 128m;
             proxy_pass    http://bbs.jb200.com;
            }

#Add expires header for static content
     location ~* .(jpg|jpeg|gif|png|swf)$ {
         if (-f $request_filename) {
             root /date/wwwroot/jbxue/;
             expires            1d;
             break;
            }
     }

         log_format    access    '$remote_addr - $remote_user [$time_local] "$request" '
               '$status $body_bytes_sent "$http_referer" '
               '"$http_user_agent" $http_x_forwarded_for';
        access_log    /exp/nginxlogs/bbs.jbxue_access.log    access;
}

location / {
           proxy_pass    http://192.168.1.4:8099/;
           proxy_redirect default ;
}

location /jbxue/ {
           proxy_pass    http://192.168.1.4:8099/jbxue/;
           proxy_redirect default ;
}

<VirtualHost 192.168.1.4:8099>
        ServerAdmin liuyu105#gmail.com
        DocumentRoot /date/wwwroot/jbxue
        ServerName bbs.jb200.com
        ErrorLog logs/jbxue_error_log
     CustomLog "|/usr/local/sbin/cronolog logs/jbxue_access_log.%Y%m%d" combined
</VirtualHost>
 

<IfModule mpm_prefork_module>
        StartServers   15
        MinSpareServers             15
        MaxSpareServers            30
        ServerLimit2536
        MaxClients   2048
        MaxRequestsPerChild     1500
</IfModule>

Timeout 120   #与nginx的保持一至
KeepAlive On
MaxKeepAliveRequests 400
KeepAliveTimeout 7

wget http://bart.eaccelerator.net/source/0.9.5.3/eaccelerator-0.9.5.3.tar.bz2
tar jxvf eaccelerator-0.9.5.3.tar.bz2
cd eaccelerator-0.9.5.3/
/usr/local/webserver/php/bin/phpize
./configure --enable-eaccelerator=shared --with-php-config=/usr/local/php5/bin/php-config
make
make install

sed -i 's#extension_dir = "./"#extension_dir = "/usr/local/php5/lib/php/extensions/no-debug-non-zts-20060613/"nextension = "memcache.so"n#' /etc/php.ini
sed -i 's#output_buffering = Off#output_buffering = On#' /etc/php.ini
sed -i "s#; always_populate_raw_post_data = On#always_populate_raw_post_data = On#g" /etc/php.ini

[eaccelerator]
zend_extension="/usr/local/php5/lib/php/extensions/no-debug-non-zts-20060613/eaccelerator.so"
eaccelerator.shm_size="128"
eaccelerator.cache_dir="/usr/local/webserver/eaccelerator_cache"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="300"
eaccelerator.shm_prune_period="120"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"

ulimit -SHn 51200
/usr/local/webserver/nginx/sbin/nginx -t
/usr/local/webserver/nginx/sbin/nginx

#!/bin/bash
# This script run at 00:00

# The Nginx logs path
logs_path="/exp/nginxlogs/"

mkdir -p ${logs_path}$(date -d "yesterday" +"%Y")/$(date -d "yesterday" +"%m")/
mv ${logs_path}bbs.jbxue_access.log ${logs_path}$(date -d "yesterday" +"%Y")/$(date -d "yesterday" +"%m")/bbs.jbxue_access_$(date -d "yesterday" +"%Y%m%d").log
kill -USR1 `cat /usr/local/webserver/nginx/nginx.pid`

crontab -e
00 00 * * * /bin/bash    /usr/local/webserver/nginx/sbin/cut_nginx_log.sh