nginx后端节点可用性探

upstream lbs {
  server 192.168.0.106:8080 max_fails=10 fail_timeout=20s ;
  server 192.168.0.106:8081 max_fails=10 fail_timeout=20s;
}
location /api/ {
  proxy_pass http://lbs;
  proxy_next_upstream error timeout http_500 http_503 http_404;
}

max_fails代表后端一个接口,访问失败多少次后

fail_timeout所规定的时间内,不再获取流量