Comment 2 for bug 1829349

Regarding this comment:

"The result is RT failed to update usage to Scheduler. And Eventually cause scheduler always think this host has enough resource to boot new VMs. So the result is disaster."

There is the BuildFailureWeigher:

https://docs.openstack.org/nova/latest/user/filter-scheduler.html#weights

https://docs.openstack.org/nova/latest/configuration/config.html#filter_scheduler.build_failure_weight_multiplier

Are the repeated build failure attempts on that host not eventually taking the host out of scheduling decisions, because it should.