nginx 服务重启报错：
1、nginx: [emerg] open() "/usr/local/etc/nginx/nginx.conf" failed (2: No such file or directory)
2、nginx: [error] invalid PID number "" in "/usr/local/nginx/run/nginx.pid"
解决：[root@localhost ~]#/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf