nginx 实现mysql的负载均衡【转】
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.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转发的配置文件include /usr/local/nginx-1.6.3/conf/tcp_proxy.conf;)
usernobody;
worker_processes
1;
#error_loglogs
/error.log;
#error_loglogs
/error.lognotice;
error_loglogs
/error.loginfo;
#pid logs
/nginx.pid;
events {
worker_connections
1024;
}
include
/usr/local/nginx-1.6.3/conf/tcp_proxy.conf;
http {
include mime.types;
default_typeapplication
/octet-stream;
log_formatmain
'$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
#access_loglogs/access.logmain;
sendfile on;
#tcp_nopush on;
#keepalive_timeout0;
keepalive_timeout65;
#gzipon;
server {
listen 3306;
server_namelocalhost;
#charset koi8-r;
#access_loglogs/host.access.logmain;
location / {
root html;
indexindex.html index.htm;
}
location /nginx_status {
stub_status on;
access_loglogs/nginx_status.log;
allow 10.195.197.124;
deny all;
}
#error_page404 /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。
转自
nginx 实现mysql的负载均衡 - ---張榮---的个人空间
https://my.oschina.net/ambari/blog/615203
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