nginx: [error] invalid PID number ＂＂ in ＂/run/nginx.pid＂，nginxnginx.pid

nginx: [error] invalid PID number "" in "/run/nginx.pid"，nginxnginx.pid

场景

. 重启nginx的时候报错

nginx: [error] invalid PID number “” in “/run/nginx.pid”

解决

. nginx -c /etc/nginx/nginx.conf
  /etc/nginx/nginx.conf  可以通过 nginx -t 来查找