vSphere Client (HTML5)/vSphere Web-client(Flash) slow to load VM summary page in vCenter 6.7 Update 2

Products

• VMware vCenter Server
• VMware vSphere ESXi

Issue/Introduction

Symptoms:

• Selecting object in the inventory takes up to 2 minutes to display the summary
• vSphere Client (html5) and vSphere web-client (flash) both experience slow performance when viewing objects with intermittent timeouts.
• A reboot of the vCenter resolves the issue temporarily
• You do not have vsan enabled in any cluster managed by the vCenter
• In the /var/log/vmware/vsphere-ui/logs/dataservice.log you see messages similar to:

[2019-05-09T11:26:07.420Z] [ERROR] extfw-filterer-pool-603      70000992 100053 200006 RiseToViseResult [queryId: q-1751] Returning partial results as one or more dataproviders responded with error. java.lang.IllegalArgumentException: vSAN datastore not found for the given VM.
        at com.vmware.vsphere.client.vsandp.helper.VsanDpInventoryHelper.getVmDatastore(VsanDpInventoryHelper.java:141)
        at com.vmware.vsphere.client.vsandp.helper.VsanDpInventoryHelper.isVmRestoreAllowed(VsanDpInventoryHelper.java:162)
        at com.vmware.vsphere.client.vsandp.dataproviders.vm.VmDataProtectionPropertyProviderAdapter.isVmRestoreAllowed(VmDataProtectionPropertyProviderAdapter.java:174)
        at com.vmware.vsphere.client.vsandp.dataproviders.vm.VmDataProtectionPropertyProviderAdapter.getProperties(VmDataProtectionPropertyProviderAdapter.java:69)

 

•  In the /var/log/vmware/vsphere-ui/logs/vsphere_client_virgo.log you see logs similar to the ones below;

[2019-05-09T10:59:17.210Z] [INFO ] data-service-pool-791 70000860 100053 200006 c.vmware.vsphere.client.vsan.base.service.VsanServiceFactoryBase  Using VMODL version: com.vmware.vim.vsan.binding.vsan.version.version9
[2019-05-09T10:59:57.492Z] [INFO ] health-status-67              com.vmware.vise.vim.cm.healthstatus.AppServerHealthService           Memory usage: used=550,122,136; max=1

 

Environment

VMware vCenter Server 6.7.x
VMware vCenter Server 6.5.x
VMware vCenter Server Appliance 6.7.x
VMware vCenter Server Appliance 6.5.x
VMware vSphere Web Client 6.7.x

Cause

This issue is caused by the vSAN plugin in vCenter 6.7 Update 2 which is enabled by default.

Resolution

This issue is resolved in vCenter 6.7 u3g release.

Workaround:
Disable the vSAN plugin on vCenter without any vSAN cluster.

To disable the vSAN plugin:

1. Navigate to Home -> Administration in vSphere client(html5) or vSphere Web Client(Flash)
2. Under Solutions choose Client Plug-ins
3. Select vSAN plugin and disable