Description of problem:

Customer used https://www.redhat.com/en/blog/getting-started-using-performance-co-pilot-and-vector-browser-based-metric-visualizations in previous RHEL 8 and 8.1 releases to get data from remote hosts on Vector dashboards


To achieve the same in RHEL8.2, PCP vector data-source is implemented to get the real time data from remote hosts (followed the doc- https://grafana-pcp.readthedocs.io/en/latest/guides/multiple-vector-hosts.html)

Here, customer found out that Grafana definition of browser access states that,
Browser access mode:
All requests will be made from the browser directly to the data source and may be subject to Cross-Origin Resource Sharing (CORS) requirements. The URL needs to be accessible from the browser if you select this access mode.


In case of Redis each host collects the data and stores it in a Redis database. Grafana connects to a single pmproxy instance on central pcp host, which in turn connects to the Redis database to gather the data.

BUT, In case of Vector dashboard it seems is not implemented in a same way and browser PC needs direct access to remote client/clients to get real time data.





Version-Release number of selected component (if applicable):
RHEL 8.2
PCP 5.x

How reproducible:



Steps to Reproduce:
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Actual results:
You need direct access from browser pc to remote client for getting real time data in dashboard for Vector datasource

Expected results:
For collecting remote host data in vecotr dashboard the request must go to central host pmroxy and then to remote client so no need for direct access from browser pc to pcp client is needed.

Additional info: