Default pm.start_servers too low in php-fpm when changing versions

[havfrue]

SYSTEM INFORMATION
OS type and version	Rocky Linux 9.5
Virtualmin version	7.30.4

When changing php-fpm version, the generated /etc/opt/remi/php83/php-fpm.d/nnnn.conf (or other php versions - same for e.g. 8.4) is setting pm.start_servers too low.

pm.max_children = 16
pm.start_servers = 2 ← Is too low - can’t be less than min_spare_servers or php-fpm throws an error
pm.min_spare_servers = 5
pm.max_spare_servers = 8

The config looks like this:
php_fpm=pm = dynamic pm.start_servers = 5 # Number of processes to start initially pm.min_spare_servers = 5 # Minimum idle processes pm.max_spare_servers = 10 # Maximum idle processes pm.max_children = 50 # Max simultaneous processes

But it still keeps setting the start_servers to 2 when changing php-fpm version.

Where can I change the defaults?

[stefan1959]

In the template

[havfrue]

I thought so as well, but this is being ignored.

[stefan1959]

I thought I saw a bug that got fixed about the settings. See if I can find it.

found this but its spare server

Php-fpm setting needs validated against pm.min_spare_servers and pm.max_spare_servers

Bring up VirtualMin on port 10000 in a browser. Log in. Choose your domain in the VirtualMin pulldown menu. Expand the Server Configuration item. Then choose PHP Options. On that panel, when FPM is chosen (if you have a choice), there is the item PHP FCGId sub-processes adjust that to be 5 or more (or whatever you see for pm.max_spare_servers) – this value is used for pm.max_children for this domain. Then start php-fpm for 8.1 back up again. You will have to do this by hand for each n…

[stefan1959]

so file is not getting updated?
Also its a template for new servers.

[havfrue]

It updates it, but always defaults pm.start_servers=2 which is too low - I have to update it manually to 5 since the php-fpm server fails to restart.

[stefan1959]

try creating a new server like example.com and see if it works, maybe a bug if not.

[havfrue]

When creating a new server it sets it correct

And on that I can change it as well without issue.

Maybe the issue with the existing server has to do with them being imported from an old server.

[stefan1959]

You could try disabling php on the virtual server and re-enabling (that may copy the template settings), or is that how your doing it now?

[havfrue]

Disabling php-fpm and re-enabling it solves the issue. I think it was related to the import, and possibly the php version may not have all been installed at the time of import.

Regardless - this works. Easy solution. Thank you!