When trying to upgrade CA Catalog, it says configuration failed .
install.log shows
[CurrentVersionDiscoverer] Auto Discovery of SLCM Current Version Components failed
Release : All releases (upgrade)
Component : CA SERVICE CATALOG
The file config.properties had lost all the database connection information or was corrupted
Restored this file from a backup prior to starting the failed upgrade attempt. Check for this file in both the Catalog install folder and the Catalog install folder's \view\conf location.