Hi

Please attach full engine.log

On Wed, Jul 19, 2017 at 12:33 PM, Marcel Hanke <marcel.hanke@1und1.de> wrote:
Hi,
i currently have a problem with changing one of our clusters to compatibility
version 4.0.
The Log shows a NullPointerException after several successful vms:
2017-07-19 11:19:45,886 ERROR [org.ovirt.engine.core.bll.UpdateVmCommand]
(default task-31) [1acd2990] Error during ValidateFailure.:
java.lang.NullPointerException
        at
org.ovirt.engine.core.bll.UpdateVmCommand.validate(UpdateVmCommand.java:632)
[bll.jar:]
        at
org.ovirt.engine.core.bll.CommandBase.internalValidate(CommandBase.java:886)
[bll.jar:]
        at
org.ovirt.engine.core.bll.CommandBase.executeAction(CommandBase.java:391)
[bll.jar:]
        at org.ovirt.engine.core.bll.Backend.runAction(Backend.java:493)
[bll.jar:]
.....

On other Clusters with the exect same configuration the change to 4.0 was
successfull without a problem.
Turning off the cluster for the change is also not possible because of >1200
Vms running on it.

Does anyone have an idea what to do, or that to look for?

Thanks
Marcel
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