Github user jburwell commented on the issue: https://github.com/apache/cloudstack/pull/1684 @rhtyd discussing this issue with @paul, there is a scenario where this wedged condition can occur. If you perform an upgrade by creating a new management server VM then no commands.properties file will be present and the dynamic API checker will be set to off. This upgrade approach is taken as a best practice to provide a simple, reliable rollback strategy and an opportunity to perform OS upgrades. I think the solution in this situation is combination of improved upgrade documentation (i.e. copy over your commands.properties or run the import script and turn on the dynamic role API checker) and some better error messages that will help admins understand how to remedy the problem.
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