升级了企业版 6.1.9，从6.1.1升级，用的minor-upgrade.sh做的维护升级
nginx 和php-fpm的配置一直没改过，重启以后首先发现报OCSP的错误，这个是我之前配的，关闭了
后面就报告链接fastcgi超时。
[error] 1685#1685: *105 connect() failed (111: Connection refused) while connecting to upstream, client: 116.30.221.219, server: , request: "GET /favicon.ico HTTP/2.0", upstream: "fastcgi://127.0.0.1:8000", host: "xxx.xxx.com", referrer: "https://xxx.xxx.com/"
服务器配了http2