Magento upgrade Readiness Check fails with the following error:
CONFIG_TEXT: Your current PHP memory limit is 128M. Magento 2 requires it to be set to 756M or more.
memory_limitvalue is different in Plesk > Domains > example.com > PHP Settings:
.rpm-based OS is installed on the server (RHEL/CentOS/CloudLinux)
Magento runs some operations, such as checking PHP settings, in a PHP CLI sub-process using Cron jobs. PHP CLI by default has 128MB limit on RHEL/CentOS/CloudLinux.
As a workaround, default
memory_limit value can be tweaked for the OS-provided PHP: