Getting the following error in the middle of the upgrade:
cemdb already exists and is not a valid database.
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The database cannot be upgraded or might not be a valid APM database schema.
Enter a different database name to create a valid database.
PRESS <ENTER> TO ACCEPT THE FOLLOWING (OK):
Release : 10.8.0
Looks like collector was still connected and running and that’s what caused the error. I finished upgrade to 10.8.