The following errors are showing up in the logs a couple times per day:
ERROR CanUpgrade [SPConfigurationDatabase] failed SharePoint Foundation Upgrade SPUpgradeSession ERROR Exception: Login failed for user 'domain\machinename$'
I have checked the patch status, servers in farm, and have run the SP Config wizard, and I can't find any component claiming to need an upgrade. Is there any way to track down what is causing this error to be thrown, or why it's using this account to access the config database?
This issue was blogged about here, with a recommendation to add the account as a shell admin, but granting permissions to a local machine account doesn't seem like a best practice. Any thoughts?