Description of problem: When only host exists in cluster ovirt optimizer provides message: Status: Solution is not doable! There are hard constraint violations. Which is incorrect as optimal solution is having all VMs on this host. Version-Release number of selected component (if applicable): ovirt-rc1 How reproducible: 100% Steps to Reproduce: 1. Start 3 VMs on 1 host 2. Run optimizer 3. Actual results: Status: Solution is not doable! There are hard constraint violations. Expected results: Data recieved. Additional info: At least inform admin what hard constraint are violated. Without this information the status of optimizer if useless.
It seems the same behaviour appears with multiple hosts as well. Steps are provided by optimizer but status is always 'Solution is not doable...' if at least 1 VM is running.
This was caused by some missing rules. I do not think we will be able to improve this for 3.5 as the Drools rule names won't tell the admin anything either.
Fixed by the rebase that happened past 3.5.
This bug report has Keywords: Regression or TestBlocker. Since no regressions or test blockers are allowed between releases, it is also being identified as a blocker for this release. Please resolve ASAP.
verified on : Red Hat Enterprise Virtualization Manager Version: 3.6.0-0.18.el6
oVirt 3.6.0 has been released on November 4th, 2015 and should fix this issue. If problems still persist, please open a new BZ and reference this one.