[2187581] "No data available" shows on Virtualization overview metrics chart

+++ This bug was initially created as a clone of Bug #2183915 +++

Description of problem:
"No data available" shows on Virtualization overview metrics chart.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. create a few running VMs in a project
2. View Virtualization overview page
3.

Actual results:
There are numbers shows in the chart, but no graph counts.

Expected results:
It shows the graph counts since there are data available.

Additional info:

— Additional comment from Guohua Ouyang on 2023-04-03 13:49:25 CST —

It might be the backend issue since there isn't changes on the page.