lnmp1.6 配置负载均衡

proxy_pass 模式

upstream httpserver {
        ip_hash;
        server 172.20.39.79 weight=1;
        server 172.20.39.80 weight=1;
        server 172.20.39.81 weight=1;
}

server
    {
        listen 80;
        server_name xxx.abc.com *.xxx.abc.com;
        index index.html index.htm index.php default.html default.htm default.php;
        root /data/www/xxx/Public;

        location ~ .*.(gif|jpg|jpeg|png|bmp|swf)$
        {
            expires      30d;
        }

        location / {
                proxy_set_header Host $host:$server_port;

                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;

                proxy_pass http://httpserver;
        }

        #access_log /data/wwwlogs/xxx.abc.com.log;
    }

fastcgi_pass 模式

注意：该模式必须保证在nginx服务器上有php服务器上对应的被请求php文件（只要能找到对应文件名即可，不需要php文件内容相同，空文件即可），主要是因为nginx会检查文件是否存在，单入口模式的系统，只要有index.php就可以了

nginx 配置，服务器IP 172.20.39.78

upstream phpserver {
        ip_hash;
        server 172.20.39.79:9000 weight=1;
        server 172.20.39.80:9000 weight=1;
        server 172.20.39.81:9000 weight=1;
}

server
    {
        listen 80;
        server_name xxx.abc.com *.xxx.abc.com;
        index index.html index.htm index.php default.html default.htm default.php;
        root /data/www/xxx/Public;

        if (!-e $request_filename) {
            rewrite ^/(.*)$ /index.php/$1 last;
            break;
        }

        location ~ /uploads/.*.php$ { deny all; }

        location ~ [^/].php(/|$)
        {
            fastcgi_pass phpserver;
            fastcgi_index index.php;
            include fastcgi.conf;
          include fastcgi_params;
            fastcgi_param PHP_ADMIN_VALUE "open_basedir=/data/www/xxx/:/tmp/:/proc/";
            include pathinfo.conf;
        }

        location ~ .*.(gif|jpg|jpeg|png|bmp|swf)$
        {
            expires      30d;
        }

        location ~ .*.(js|css)?$
        {
            expires      12h;
        }

        location ~ /.well-known {
            allow all;
        }

        location ~ /.
        {
            deny all;
        }

        access_log /data/wwwlogs/xxx.abc.com.log;
}

php-fpm.conf 配置服务器IP 172.20.39.80，其他两台服务器类似

[global]
pid = /usr/local/php/var/run/php-fpm.pid
error_log = /usr/local/php/var/log/php-fpm.log
log_level = notice

[www]
listen = 9000
listen.backlog = -1
listen.allowed_clients = 172.20.39.80,127.0.0.1,172.20.39.78
listen.owner = www
listen.group = www
listen.mode = 0666
user = www
group = www
pm = dynamic
pm.max_children = 600
pm.start_servers = 80
pm.min_spare_servers = 20
pm.max_spare_servers = 600
pm.max_requests = 4096
pm.process_idle_timeout = 10s
request_terminate_timeout = 100
request_slowlog_timeout = 0
slowlog = /var/log/slow.log