nginx配置web容器实现自动剔除异常(失败)的服务

要实现nginx配置web容器实现自动剔除异常的服务,主要在nginx的conf下的nginx.conf文件的upstream中配置信息。

nginx负载均衡可以参考文章:https://www.52jingya.com/aid9.html

nginx配置web容器实现自动剔除异常(失败)的服务

具体内容如下:

upstream my_server {
    	server   127.0.0.1:8080 weight=1 max_fails=1 fail_timeout=60s;
    	server   127.0.0.1:8088 weight=1 max_fails=1 fail_timeout=60s;
        server   127.0.0.1:8086 weight=7 max_fails=1 fail_timeout=60s down;
    	server   127.0.0.1:8087 weight=7 max_fails=1 fail_timeout=60s backup;
}

说明:

上面配置的是同一台服务器,负载了2个tomcat容器,端口分别为8080和8088。请求失败1次后,服务剔除60s(在60s内该服务不会被请求到)。


参数说明:

  • down 表示单前的server暂时不参与负载
  • weight 默认为1.weight越大,负载的权重就越大。
  • max_fails :允许请求失败的次数默认为1.当超过最大次数时,返回proxy_next_upstream 模块定义的错误
  • fail_timeout:max_fails次失败后,暂停的时间。
  • backup: 其它所有的非backup机器down或者忙的时候,请求backup机器。所以这台机器压力会最轻。


下面为nginx.conf的完整配置

#user  nobody;
worker_processes  1;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  45;
    #gzip  on;

    upstream my_server {
    	server   127.0.0.1:8080 weight=7 max_fails=1 fail_timeout=60s;
    	server   127.0.0.1:8088 weight=7 max_fails=1 fail_timeout=60s;
        server   127.0.0.1:8086 weight=7 max_fails=1 fail_timeout=60s down;
    	server   127.0.0.1:8087 weight=7 max_fails=1 fail_timeout=60s backup;
    }
	
    server {
        listen       80;
        server_name  localhost;

        location / {
            root   html;
            index  index.html index.htm;
        }
		
	location ~ .*\.(jsp|syy|do|html)$ {
            proxy_set_header Host $host;
            proxy_set_header X-Forwarded-For $remote_addr;
            proxy_pass http://my_server;
            client_max_body_size 5m;
        }

        #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;
        }
    }
}
posted @ 2021-11-24 17:46  甜菜波波  阅读(1961)  评论(0编辑  收藏  举报