upstream abc
{
server localhost:52816 weight=
5 max_fails=
2 fail_timeout=
600s;
server localhost:52817 weight=
5 max_fails=
2 fail_timeout=
600s;
}
server {
listen 80;
server_name localhost;
location /
{
proxy_pass http://abc;
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_connect_timeout 10;
}
}
其他的通用，监听80端口，导向abc，然后均衡负载至52816,52817，weight=5，轮询机制；
max_fails=2 fail_timeout=600s;，1个小时内如果有2次失败，后续将不在访问此端口。测试是有效的。
proxy_connect_timeout 10; 10s秒时间访问失败自动切换，测试时，调换各个参数，发现实际是2倍的10s即20秒左右才自动切换，不晓得为什么，
转载于:https://www.cnblogs.com/huanyun/p/9443642.html
