While performing a vCenter Server upgrade to version 9.0.2 using the Fleet Manager > lifecycle, following pre-check errors are observed across the ESXi environment:
Vpxa service is not running on the host.
ESXi storage system check failed on host with error: `Cannot invoke "com.vmware.vcf.baseliner.input" because "productData" is null.`
Missing host from the SDDC Manager inventory.
ESXi host connection could not be established.
Internal error during third-party VIBs validation: `java.lang.NullPointerException`
Manual inspection of the affected ESXi hosts via SSH using the below command confirmed that the vpxa service was healthy and running: /etc/init.d/vpxa status
VMware Cloud Foundation 9.x
Inventory > Expand VCF instance > Select the affected Domain.Actions > Inventory syncTo retrieve the SDDC Manager FQDN and IP address if they are unknown, perform the following API call within the VMware Cloud Foundation (VCF) Operations interface:
Developer Center > APIs & SDKs > SDDC Manager APIs.Sddcmanagers section and select the following endpoint: GET /v1/sddc-managers. Execute.