In SharePoint 2013 I was getting the below error message as soon as I click on create site collection. The error message comes as UserProfileDBCache_WCFLogging :: ProfileDBCacheServiceClient.GetUserData threw exceptionObject reference not set to an instance of an object. It looks like below:
As the error message shows it is the issue with user profile service. You might be wondering how come a site collection creation is related to UPSA? It is very much impacts, because while creating the web application it lists all the service applications will be associated to that web application. As we all know that UPSA is one of the critical service application to import all the user profiles from AD to SharePoint. To import these profiles SharePoint has various timer jobs listed below.
2. I have also disabled and enable the timer job “User Profile Service Application – User Profile Incremental Synchronization”.
Locate for “User Profile Service Application – User Profile Incremental Synchronization” and click in that.