Restart php-fpm

(A stop nginx)

/data/openresty/nginx/sbin/nginx -s stop

(Two, killing php-fpm)

pkill php-fpm

(Third, open php-fpm)

/data/openresty/php/sbin/php-fpm

(Four open nginx)

/data/openresty/nginx/sbin/nginx

[If only modify the nginx.conf to smooth restart nginx]