Description of problem:

On RHCS 6.1z4 and lower versions, Ceph Grafana dashboard doesn't show the Graphs in RGW sync overview page as it complains about "No Data". If I set `mgr/prometheus/exclude_perf_counters` as false, then the Graphs are getting populated. Also OSD overview page doesn't show most of the graphs like OSD read latency, write latency, highest read latency, highest write latency etc. This doesn't change with setting `mgr/prometheus/exclude_perf_counters` as false. 

So looks like ceph-exporter is not working properly which is introduced in RHCS 6.1. 

Version-Release number of selected component (if applicable):
17.2.6-196.el9cp

How reproducible:

It is happening all the time in both customer environment and in my lab setup. 


Steps to Reproduce:

- Install 2 RHCS 6.1z2 clusters
- Setup RGW multisite between them
- Verify the RGW sync overview page in Grafana portal for both the sites. The Graphs will be showing as "No Data".
- Modify the parameter `mgr/prometheus/exclude_perf_counters` as false. 
- Verify the Graphs under RGW sync overview page. They will be showing data. 
- Reset the parameter
- Upgrade the cluster to the latest RHCS 6.1z4 and verify the Graphs. They will be showing no data again. 
- Change the parameter to false again. Now the Graphs will be populated properly.


Actual results:

Graphs are showing "No data"

Expected results:

Graphs should be populated with actual data

Additional info:

Similar issue was observed on the BZ#2224967 and Engineering provided workaround to set the parameter mgr/prometheus/exclude_perf_counters as false and the fix was supposed to be introduced on RHCS 6.1z2. But looks like it is still not fixed or partially fixed.