The plugin output indicates that the daemon process "/opt/microsoft/omsagent/plugin/npmd_agent" is not managed by RPM, and it is associated with the "microsoft/omsagent" package. This package is part of the Operations Management Suite (OMS) Agent, which is used for monitoring and management of systems and services.
If you uninstall the OMS Agent package or manually remove the npmd_agent process, you may lose the monitoring and management capabilities provided by the package. Additionally, you may not receive any updates or security patches for the package.
If you want to continue using the OMS Agent package, you can try to configure it to use the RPM package management tools instead of manually installing the npmd_agent process. You can refer to the OMS Agent documentation or contact Microsoft support for guidance on how to do this.
Alternatively, if you no longer need the monitoring and management capabilities provided by the OMS Agent package, you can uninstall the package using the RPM package management tools. You can use the following command to uninstall the package:
sudo yum remove omsagent