Update ubuntu for many requests

limits.conf

# /etc/security/limits.conf

# Apache / Nginx
www-data      soft    nofile  30000
www-data      hard    nofile  80000

# MySQL
mysql      soft    nofile  30000
mysql      hard    nofile  80000

nginx.conf

# /etc/nginx/nginx.conf

worker_processes 4;
worker_rlimit_nofile 80000;

events {
        worker_connections 4048;
}

sysctl.conf

# /etc/sysctl.conf

fs.file-max = 150000

www.conf

# /etc/php/7.3/fpm/pool.d/www.conf
pm.max_children = 80
pm.start_servers = 32
pm.min_spare_servers = 16
pm.max_spare_servers = 32
pm.max_requests = 500
pm = static