nginx 實現mysql的負載均衡【轉】

默認Nginx只支持http的反向代理，要想nginx支持tcp的反向代理，還需要在編譯時增加tcp代理模塊支持，即nginx_tcp_proxy_module

下面操作步驟只讓nginx支持tcp_proxy，沒有加入prce、gzip、ssl等功能，如需要，可自行在編譯時加上相關參數。

wget https://github.com/yaoweibin/nginx_tcp_proxy_module/archive/master.zip
unzip master
 tar -zxvf nginx-1.6.3.tar.gz 
cd nginx-1.6.3
patch -p1 < ../nginx_tcp_proxy_module-master/tcp.patch 
./configure --add-module=../nginx_tcp_proxy_module-master --prefix=/usr/local/nginx-1.6.3 --with-http_stub_status_module --with-http_gzip_static_module
make
make install

 

nginx.conf主配置文件中增加如下配置配置：（也可以在主配置文件中配置include,包含tcp轉發的配置文件include /usr/local/nginx-1.6.3/conf/tcp_proxy.conf;）

user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}

include /usr/local/nginx-1.6.3/conf/tcp_proxy.conf;

http {
    include       mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$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       3306;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   html;
            index  index.html index.htm;
        }

    location /nginx_status {
        stub_status on;
            access_log  logs/nginx_status.log;
        allow 10.195.197.124;
        deny all;
    }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

    }

}

 

include /usr/local/nginx-1.6.3/conf/tcp_proxy.conf;

tcp {
    upstream mysql {
        server 10.207.238.66:3306;
        server 10.207.238.67:3306;
 
        check interval=3000 rise=2 fall=5 timeout=1000;
        #check interval=3000 rise=2 fall=5 timeout=1000
        #check interval=3000 rise=2 fall=5 timeout=1000
        #check_http_send "GET /HTTP/1.0\r\n\r\n";
        #check_http_expect_alive http_2xxhttp_3xx;
    }
 
    server {
listen 3307;
        proxy_pass mysql;
    }
}

 

說明：
check interval 健康檢查，單位是毫秒
rise 檢查幾次正常后，將reslserver加入以負載列表中
fall 檢查幾次失敗后，摘除realserver
timeout 檢查超時時間，單位許毫秒
具體可查看nginx_tcp_proxy_module-master/README,很詳細。

轉自

nginx 實現mysql的負載均衡 - ---張榮---的個人空間
https://my.oschina.net/ambari/blog/615203