When using the Python Module for VMware Cloud Foundation Health Monitoring in VMware Aria Operations (v2.2.0.1003 or earlier) in a large environment (in excess of 15k VM's across multiple regions/ vCenters) you may see the following behavior:
VMware Aria Operations 8.x
Issues in communications to SOS services and other performance related scripting updates needed.
Please update the python module for HRM to v2.2.1 or higher.
Link - https://pypi.org/project/vmware-cloud-foundation-health-monitoring/
Update instructions - https://github.com/vmware-samples/validated-solutions-for-cloud-foundation/tree/main/hrm#updating-the-python-module-to-the-latest-version