The Aria Operations for Logs 8.18.x can collect the logs from vCenter however the VC Collection Status shows unknown.
NOTE: If the issue you are facing does not have the same symptoms as this one, please check the KB below.
vCenter Collection Status = Unknown and not seeing vCenter logs
Aria Operations for Logs 8.18.x
First, attempt to reboot the Aria Operations for Logs nodes. If the issue persists, please continue with the steps below.
NOTE: Please make sure to create snapshots of the cluster before proceeding.
Remove and re-add the vSphere integration:
service loginsight restart
If the above steps did not resolve the issue, or you do not wish to remove the existing vSphere integration, please follow the procedure below:
grep '<assignee-cluster-node value="null"' $(ls /storage/core/loginsight/config/loginsight-config.xml#* | tail -n1)grep -m1 "token=" $(ls -d /storage/core/loginsight/config/* | grep loginsight-config | tail -n1)