nginx: [emerg] unknown directive "stub_status" in /usr/local/openresty/nginx/conf/conf.d/ngx_metric.conf:19
https://www.cnblogs.com/felixzh/p/8709038.html
https://www.jb51.net/article/60655.htm
https://www.cnblogs.com/felixzh/p/8709038.html
https://www.jb51.net/article/60655.htm