Nginx之——Nginx作为TCP负载均衡

转载请注明出处：http://blog.csdn.net/l1028386804/article/details/78276688

这两天考虑mysql的集群，考虑负载均衡，了解nginx在版本1.9.0以后支持tcp的负载均衡，具体可以参照官网关于模块ngx_stream_core_module的叙述

nginx从1.9.0后引入模块ngx_stream_core_module，模块是没有编译的，需要用到编译需添加--with-stream配置参数，stream负载均衡官方配置样例

worker_processes auto;

error_log /var/log/nginx/error.log info;

events {
worker_connections  1024;
}

stream {
upstream backend {
hash $remote_addr consistent;

server backend1.example.com:12345 weight=5;
server 127.0.0.1:12345            max_fails=3 fail_timeout=30s;
server unix:/tmp/backend3;
}

upstream dns {
server 192.168.0.1:53535;
server dns.example.com:53;
}

server {
listen 12345;
proxy_connect_timeout 1s;
proxy_timeout 3s;
proxy_pass backend;
}

server {
listen 127.0.0.1:53 udp;
proxy_responses 1;
proxy_timeout 20s;
proxy_pass dns;
}

server {
listen [::1]:12345;
proxy_pass unix:/tmp/stream.socket;
}
}

参照此配置文件修改自定义配置文件

user  nginx;
#user root;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;

events {
worker_connections  1024;
}

http {
include       /etc/nginx/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  /var/log/nginx/access.log  main;

sendfile        on;
#tcp_nopush     on;

keepalive_timeout  65;

#gzip  on;

include /etc/nginx/conf.d/*.conf;
}

stream{
upstream mysql{
server 192.168.1.106:3306 weight=1;
server 192.168.1.108:3306 weight=1;
}

server{
listen 3307;
proxy_pass mysql;
}

}

stream与http同级别，上文为main