Virtual machine metrics not display since at same time
Below error found when the issue found in web.log:
com.vmware.vcops.ui.action.WidgetScoreboardAction.getMetricValues - ResultMetricDetail function getResourceMetricDetails returned null
Both analytics and collector service are running without any issue
These metrics are back to display after some while without any interaction.
VMware Aria Operations 8.18.x
It is intermittent issue that related to cache query and sync inside the cluster and could be recovered by system automatically.