负载均衡配置

weixin_41790678

已于 2024-07-12 09:59:56 修改

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文章标签：负载均衡运维

于 2024-07-10 18:10:33 首次发布

本文链接：https://blog.youkuaiyun.com/weixin_41790678/article/details/140331110

版权

1、多个服务器访问一个应用为集群

2、多个服务器多个业务拆分为分布式

3、基本负载均衡配置

1、轮询，默认的负载均衡策略是轮询，即请求均匀地分布到每个上游服务器。

upstream backend {

server www.fz1.com:80;

server www.fz2.com:80;

}

2、权重，可以为每个上游服务器设置权重，权重越高，分配的请求越多。

upstream backend {

server www.fz1.com:80 weight=3;

server www.fz2.com:80 weight=1;

}

3、最少连接，将请求分发到当前连接数最少的服务器。

upstream backend {

least_conn;

server www.fz1.com:80;

server www.fz2.com:80;

}

4、IP Hash，基于客户端 IP 地址的哈希值分配请求，确保来自同一客户端的请求始终分配到同一台服务器。

upstream backend {

ip_hash;

server www.fz1.com:80;

server www.fz2.com:80;

}

5、基本健康检查，可以设置失败次数和失败超时时间来进行基本的健康检查。

upstream backend {

server www.fz1.com:80 max_fails=3 fail_timeout=30s;

server www.fz2.com:80 max_fails=3 fail_timeout=30s;

}

超时设置

可以设置连接超时、发送超时和接收超时。

        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;

4、用户访问的服务器：nginx

upstream backend {
server www.fz1.com:8081;
server www.fz2.com:8082;
}

server {
listen 80;
server_name www.fz.com;
location / {
proxy_pass http://backend;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;

# 日志配置，用于调试
access_log D:/xxx/xxx/xxx/logs/fz_access.log;
error_log D:/xxx/xxx/xxx/logs/fz_error.log debug;
}
}

server {
listen 8081;
server_name www.fz1.com;
root "D:/xxx/xxx/www.fz1.com";
location / {
index index.php index.html error/index.html;
error_page 400 /error/400.html;
error_page 403 /error/403.html;
error_page 404 /error/404.html;
error_page 500 /error/500.html;
error_page 501 /error/501.html;
error_page 502 /error/502.html;
error_page 503 /error/503.html;
error_page 504 /error/504.html;
error_page 505 /error/505.html;
error_page 506 /error/506.html;
error_page 507 /error/507.html;
error_page 509 /error/509.html;
error_page 510 /error/510.html;
include D:/xxx/xxx/www.fz1.com/nginx.htaccess;
autoindex off;

access_log D:/xxx/xxx/xxx/logs/fz1_access.log;
error_log D:/xxx/xxx/xxx/logs/fz1_error.log debug;
}
location ~ \.php(.*)$ {
fastcgi_pass 127.0.0.1:9001;
fastcgi_index index.php;
fastcgi_split_path_info ^((?U).+\.php)(/?.+)$;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
include fastcgi_params;
}
}

server {
listen 8082;
server_name www.fz2.com;
root "D:/xxx/xxx/www.fz2.com";
location / {
index index.php index.html error/index.html;
error_page 400 /error/400.html;
error_page 403 /error/403.html;
error_page 404 /error/404.html;
error_page 500 /error/500.html;
error_page 501 /error/501.html;
error_page 502 /error/502.html;
error_page 503 /error/503.html;
error_page 504 /error/504.html;
error_page 505 /error/505.html;
error_page 506 /error/506.html;
error_page 507 /error/507.html;
error_page 509 /error/509.html;
error_page 510 /error/510.html;
include D:/xxx/xxx/www.fz2.com/nginx.htaccess;
autoindex off;

access_log D:/xxx/xxx/xxx/logs/fz2_access.log;
error_log D:/xxx/xxx/xxx/logs/fz2_error.log debug;
}
location ~ \.php(.*)$ {
fastcgi_pass 127.0.0.1:9001;
fastcgi_index index.php;
fastcgi_split_path_info ^((?U).+\.php)(/?.+)$;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
include fastcgi_params;
}
}