nginx reloadの失敗の解決

1.エラーメッセージ

nginx: [error] open() "/usr/local/nginx/logs/nginx.pid" failed (2: No such file or directory)

2.解決方法

/usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf

  nginx -c     nginx.conf     

  ：nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
killall -9 nginx   nginx           。 service nginx restart