nginx实现MySQL负载均衡
Posted 花未全开月未圆
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了nginx实现MySQL负载均衡相关的知识，希望对你有一定的参考价值。
默认nginx只支持http的反向代理，要想nginx支持tcp的反向代理，还需要在编译时增加tcp代理模块支持，即nginx_tcp_proxy_module
下面操作步骤只让nginx支持tcp_proxy，没有加入prce、gzip、ssl等功能，如需要，可自行在编译时加上相关参数。
wget https://github.com/yaoweibin/nginx_tcp_proxy_module/archive/master.zipunzip 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转发的配置文件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;
}
}说明：
check interval 健康检查，单位是毫秒
rise 检查几次正常后，将reslserver加入以负载列表中
fall 检查几次失败后，摘除realserver
timeout 检查超时时间，单位许毫秒
具体可查看nginx_tcp_proxy_module-master/README,很详细。
以上是关于nginx实现MySQL负载均衡的主要内容，如果未能解决你的问题，请参考以下文章