PHP-FPM

プロセス数変更

staticにしちゃって良い

# vi /etc/php/7.2/fpm/pool.d/www.conf

;pm = dynamic
pm = static ←●追加
; The number of child processes to be created when pm is set to 'static' and the
; maximum number of child processes when pm is set to 'dynamic' or 'ondemand'.
; This value sets the limit on the number of simultaneous requests that will be
; served. Equivalent to the ApacheMaxClients directive with mpm_prefork.
; Equivalent to the PHP_FCGI_CHILDREN environment variable in the original PHP
; CGI. The below defaults are based on a server without much resources. Don't
; forget to tweak pm.* to fit your needs.
; Note: Used when pm is set to 'static', 'dynamic' or 'ondemand'
; Note: This value is mandatory.
;pm.max_children = 13
pm.max_children = 50 　←●追加

 

タイムアウト対応

 

PHP-FPM

# vi /etc/php/7.2/fpm/pool.d/www.conf

request_terminate_timeout = 300

 

$ sudo service php7.2-fpm restart
$ sudo service php7.2-fpm status

 

Nginx

/etc/nginx/sites-available/nginx.conf

server {
        ・・・
        fastcgi_read_timeout 300; ←●追加
        fastcgi_send_timeout 300; ←●追加

 

●RDS

wait_timeoutを300に変更

 

●php.ini

 

$ vi /etc/php/7.2/fpm/php.ini

max_execution_time = 30s

 

$ service php7.2-fpm restart

 

PHP-FPMスロウログ

PHP-FPM スロウログを出す

 

■ RDSのパケット閾値制限エラーの対応

カスタムパラメータグループから、
デフォルト4Mを100MBに変更
max_allowed_packetを104857600 // 100M

 

■TCPセッションエラー対応

 

# vi /etc/php/7.2/fpm/pool.d/www.conf

listen.backlog = -1

 

$ service php7.2-fpm restart

 

 

# vi /etc/sysctl.conf

net.ipv4.tcp_max_syn_backlog = 2048
net.core.somaxconn=2048

反映

$ sysctl -p