vCenter Server 5.5 displays a yellow warning in the Summary tab of hosts and reports the error: Quick stats on hostname is not up-to-date

This is not the first time i see this annoying warning message

• When connecting to VMware vCenter Server 5.5 using the VMware vSphere Client or VMware vSphere Web Client, the Summary tab of the ESXi 5.5 host shows a yellow warning.
• You see the error:
  Configuration issues. “Quick stats on hostname is not up-to-date”
  
• This issue does not occur if you connect directly to the ESXi host.

Why does this happen ?

It’s basically a VMware vCenter 5.5 BUG and has been fixed in the next update VMware vCenter Server 5.5.0b

Resolution:

First Option: Upgrade your vCenter 5.5 to the latest update and that message will disappear (Recommended)

Second Option:

To work around this issue when you do not want to upgrade, add these quickStats parameters to the Advanced Settings of vCenter Server:

• vpxd.quickStats.HostStatsCheck
• vpxd.quickStats.ConfigIssues
  

Note: Adding these parameters to vCenter Server does not affect future upgrades.

To add the quickStats parameters to the Advanced Settings of vCenter Server:

1. In the vSphere Web Client, navigate to the vCenter Server instance.
2. Select the Manage tab.
3. Select Settings > Advanced Settings.
4. Click Edit.
5. In the Key field, enter this key:
   vpxd.quickStats.HostStatsCheck
6. In the Value field, enter:
   False
7. Click Add.
8. In the Key field, enter this key:
   vpxd.quickStats.ConfigIssues
9. In the Value field, enter:
   False
10. Click Add.
11. Click OK.
12. Restart the vCenter Server services.

Enjoy,

Henry Hazot

VCP 5.5, MCT 2014