nginx四层负载均衡配置

nginx四层负载均衡配置代理Mysql集群

环境如下：

1. ip 192.168.6.203 nginx

2. ip 192.168.6.*(多台) Mysql

步骤一

查看Nginx是否安装stream模块

没安装则进行安装 操作步骤如下

pkill nginx

至此 已成功添加stream模块

步骤二

配置 mysql负载均衡案例

修改Nginx配置文件nginx.conf 内容如下图

测试步骤如下

1. 后端Mysql需做好读写分离

2. 创建好相应权限的用户

3. 到客户端连接Nginx创建wuguiyunwei库进行测试

在客户端连接 创建测试库

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查看详情

连接3307读库查看 成功如下

当然为了高可用以下才是我们想要的效果

以上配置只是为了让大家了解stream模块。当然也可以用于生产环境，但还需完善工作如节点down剔除,完善的一些监控工作。。。

以下是实验环境的nginx主配文件

user www www;
worker_processes auto;

error_log /usr/local/nginx/logs/error_nginx.log crit;
pid /var/run/nginx.pid;
worker_rlimit_nofile 51200;

events {
use epoll;
worker_connections 51200;
multi_accept on;
}

stream {

server {
listen 3306;
proxy_pass Mysql_write;
}

server {
listen 3307;
proxy_pass Mysql_read;
}

upstream Mysql_write {
server 192.168.6.19:3306 weight=10;
server 192.168.6.20:3306 weight=10;
server 192.168.6.18:3306 weight=10;
}
upstream Mysql_read {
server 192.168.6.175:3306 weight=10;
server 192.168.6.176:3306 weight=10;
server 192.168.6.177:3306 weight=10;
}

}
http {
include mime.types;
default_type application/octet-stream;
server_names_hash_bucket_size 128;
client_header_buffer_size 32k;
large_client_header_buffers 4 32k;
client_max_body_size 1024m;
client_body_buffer_size 10m;
sendfile on;
tcp_nopush on;
keepalive_timeout 120;
server_tokens off;
tcp_nodelay on;

fastcgi_connect_timeout 300;
fastcgi_send_timeout 300;
fastcgi_read_timeout 300;
fastcgi_buffer_size 64k;
fastcgi_buffers 4 64k;
fastcgi_busy_buffers_size 128k;
fastcgi_temp_file_write_size 128k;
fastcgi_intercept_errors on;

gzip on;
gzip_buffers 16 8k;
gzip_comp_level 6;
gzip_http_version 1.1;
gzip_min_length 256;
gzip_proxied any;
gzip_vary on;
gzip_types
text/xml application/xml application/atom+xml application/rss+xml application/xhtml+xml image/svg+xml
text/javascript application/javascript application/x-javascript
text/x-json application/json application/x-web-app-manifest+json
text/css text/plain text/x-component
font/opentype application/x-font-ttf application/vnd.ms-fontobject
image/x-icon;
gzip_disable “MSIE [1-6]\.(?!.*SV1)”;

open_file_cache max=1000 inactive=20s;
open_file_cache_valid 30s;
open_file_cache_min_uses 2;
open_file_cache_errors on;
########################## vhost
include vhost/*.conf;
}

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