Description of problem:
On my system something want wrong on openShift, which caused the tenant "System" project to be unavailable.
Now, when I navigated to ad-hoc metrics it fail to get filters the first option on the dropdown list
Version-Release number of selected component (if applicable):
5.8.1.0
How reproducible:
delete Casandra pod on openShift and navigate to ad hoc view
Steps to Reproduce:
1. remove casanra pod on openshift (oc delete pod hawkular-cassandra-1-u8app -n )openshift-infra
2.wait until the pod raise again
3.navigate to ad hoc and try to get matrices