The VMware dashboards drill downs are grayed out and no data is being displayed in the VMware dashboards. Reviewing the agent logs the following message is seen:
2015-01-15 11:19:36.829 ECHO <VMwarePerformance/5.6.13/VMwarePerformance/0.0.0.0-agent> FATAL [Quartz-1832] com.quest.agent.esx.task.HardwareTask - An unexpected issue occurred during data collection from the VirtualCenter. Please review your environment to ensure that data collection has resumed in a normal fashion. If there is a persistent problem or this message recurs regularly please contact Quest Support.
2015-01-15 11:19:36.835 ECHO <VMwarePerformance/5.6.13/VMwarePerformance/0.0.0.0-agent> INFO [Quartz-1832] com.quest.agent.esx.task.HardwareTask - Execution Complete (submitted timestamp Thu Jan 15 11:19:36 CET 2015)
What is the cause of this issue?
Errors like the ones above happen due to a collection timeout. There are a number of causes for theses timeouts that should be ruled out first: