Doh! I am such an idiot !!! First of all, I meant to say I upgraded to 4.3.2 not 4.3.3. I only installed ovirt-release43.rpm on the engine. I've gotten too lazy with using the upgrade host feature in the GUI that I completely failed to think of doing this on each of the hosts. Worse, I've got a vague sense of deja vu like I've been in this same spot before, maybe with 4.1 -> 4.2. These bigger upgrades are just infrequent enough I forget important steps. It seems like this could be handled more gracefully though. Shouldn't this be caught and reported as user-friendly alert in the GUI? Also, I think it would be better if the release notes ... Change """If you're upgrading from oVirt Engine 4.2.8 you just need to execute:""" to """If you're upgrading from oVirt Engine 4.2.8 you just need to execute on your Engine and each Host:""".