Apache + PHP-FPM Pool Options Explained

[mariusfv]

In WHM > MultiPHP Manager we have the posibility to edit Pool Options for each domain.

Default Pool Options are:

Max Children = 5
Process Idle Timeout = 10
Max Requests = 20

1. Can cPanel explain this vaules in their documentation(with Apache):
How many simultan connections(aproximated) can deal this default values?

2. Can cPanel give us an example for 10k / 100k simultan connections what values are recommended?

3. Can cPanel tell us what's happen for visitors when default values are reached?

Thanks!

 

[cPanelMichael]

Hello,

You will typically notice an error message in the Apache error log, and the website will fail to open, when those limits are reached. PHP provides a document that details the FPM configuration values:

PHP: Configuration - Manual

You can also find some discussion of recommended values on a third-party URL like this:

Recommendation for PHP-FPM pm.max_children, PHP-FPM pm.start_servers and others | Web Hosting Talk

Thank you.

 

[chrismfz]

Is there a way to change the default pool options ?
Or we have to change per domain ?

 

[cPanelMichael]

Is there a way to change the default pool options ?
Or we have to change per domain ?

Hello,

This is answered on the following thread:

Change PHP-FPM Pool Settings default values?

Thank you.