Atatus PHP Agent not working in CloudLinux

When running PHP applications on CloudLinux, the CageFS filesystem can block communication between the Atatus PHP agent and the Atatus backend, preventing data from being sent.

Cause

CageFS isolates each user into a virtualized environment, but in doing so, it can restrict access to required sockets or resources used by the Atatus agent. This restriction blocks the agent’s ability to send data.

Solution:

To resolve this, you can disable CageFS either partially (reinitialize) or fully disable it.

Option 1: Reinitialize CageFS

This temporarily resolves the issue but may not be a long-term fix:

cagefsctl --reinit

Option 2: Fully Disable CageFS

If the problem returns after reinitialization, disabling CageFS completely is recommended:

cagefsctl --disable-all

After disabling, the Atatus PHP agent will start sending data as expected.

Restart Services

# For NGINX + PHP-FPM
systemctl restart nginx
systemctl restart php-fpm

# For Apache
systemctl restart httpd

​Cause

​Solution:

​Option 1: Reinitialize CageFS

​Option 2: Fully Disable CageFS

​Restart Services

Cause

Solution:

Option 1: Reinitialize CageFS

Option 2: Fully Disable CageFS

Restart Services