It looks like this issue is supposed to be resolved, but my PHP-FPM virtual servers are still defaulting to pm.max_children = 9999 in /etc/php/7.4/fpm/pool.d/xxxxx.conf
Is there any template file or config variable I need to change?
Yes, it can be configured globally on Server Configuration ⇾ PHP Options: Edit Server Template page with Additional FPM pool options field or locally on virtual-server.name - Server Configuration ⇾ PHP Options page.
Although, I see that it’s still not displayed on PHP Options page in some cases. We will fix that. Meanwhile, try to fix it manually on virtual-server.name - Services ⇾ PHP-FPM Configuration: Manage PHP Configuration page (by editing configuration manually).