Symptom:
This Error in the application event logs:
Object Cache: The super user account utilized by the cache is not configured. This can increase the number of cache misses, which causes the page requests to consume unneccesary system resources.
To configure the account use the following command 'stsadm -o setproperty -propertyname portalsuperuseraccount -propertyvalue account -url webappurl'. The account should be any account that has Full Control access to the SharePoint databases but is not an application pool account.
Additional Data:
Current default super user account: SHAREPOINT\system
Solution:
This time, a helpful message in the error itself. Just follow the instructions in the error and use the stsadm command to set the super user account for each Web app.