vCenter Server Web Client behaves slowly over time

Products

• VMware vCenter Server

Issue/Introduction

• When clicking on Inventory items in the Web Client, you see this unexpected privilege errors:
  
  You do not have permissions to view this object or this object does not exist
   
• In the /var/log/vmware/vapi/endpoint/endpoint.log file, you see entries similar to:
    | INFO | state-manager1 | InvProviderClientFactory | Logging out from IS Server... OK
  | INFO | state-manager1 | InvProviderClientFactory | Login to IS server...
  | WARN | state-manager1 | InvProviderClientFactory | Unable to login/logout to/from inventory servicecom.vmware.vim.query.client.exception.ClientException: java.util.concurrent.ExecutionException: com.vmware.vim.vmomi.client.exception.ConnectionException: java.net.ConnectException: Connection timed out
   
• In the vapi wrapper.log file, you see entries similar to:
  
  INFO | jvm 1 | 2016/08/10 22:22:47 | WrapperManager: Initializing...
  INFO | jvm 1 | 2016/08/26 14:59:49 | java.lang.OutOfMemoryError: GC overhead limit exceeded
  INFO | jvm 1 | 2016/08/26 14:59:49 | Dumping heap to /var/log/vmware/vapi/endpoint/java_pid10314.hprof ...
  INFO | jvm 1 | 2016/08/26 14:59:49 | Heap dump file created [127876242 bytes in 1.021 secs]
   

Note: This log excerpt is an example. Date, time, and environmental variables may vary depending on your environment.

Environment

• VMware vCenter Server Appliance 6.0.x
• VMware vCenter Server 6.0.x

Cause

This issue occurs due to vapi endpoint memory leak.

Resolution

This issue is resolved in vSphere 6.0 U3.

Alternatively, to resolve this issue, you can upgrade to vSphere 6.5 GA.

To work around this issue, restart the vapi endpoint service and vpxd service in vCenter Server.