So it recently came to my attention that on one of our clusters, running the command "radosgw-admin usage show" returns a blank response. What is going on behind the scenes with this command, and why might it not be seeing any of the buckets properly? The data is still accessible over S3 via the rgw service, it's just not showing us either the Index or Metadata of the buckets. 

Greatly appreciate everyone's help in advance.

Thanks,