Hi I am running openstack liberty on Centos 7 using KVM and ceph backend and testing the nova evacuation function.
After booting vms with bootable volume, I shutdown the hypervisor A. With "Nova evacuate" command, instances were moved to hypervisor B successfully. Then I booted the hypervisor A again. when I do "virsh list --all" on hypervisor A, the instances were still there (in shut off status) and the instances state files are also in /var/lib/nova/instances. I checked openstack wiki (https://wiki.openstack.org/wiki/Evacuate), it is said that "When/if the failed node is back online, further self cleanup is performed". I think the "cleanup" will also undefine the vm from hypervisor and delete the xml files, doesn't it? in the nova-compute.log, nova realized the inconsistency (vms has been moved to other nodes). However, it seems like trying to resize the instance??? here is the nova-compute.log: 2016-05-23 16:46:05.661 1360 WARNING nova.compute.manager [req-58c84fea-43f8-4249-ba0d-6e1568570a89 - - - - -] While synchronizing instance power states, found 0 instances in the database and 3 instances on the hypervisor. 2016-05-23 16:46:53.088 1360 INFO nova.compute.resource_tracker [req-58c84fea-43f8-4249-ba0d-6e1568570a89 - - - - -] Auditing locally available compute resources for node compute2 2016-05-23 16:46:54.551 1360 WARNING nova.compute.resource_tracker [req-58c84fea-43f8-4249-ba0d-6e1568570a89 - - - - -] [instance: 8b2cf5da-8286-460f-86cf-7a8f3c00b934] Instance not resizing, skipping migration. 2016-05-23 16:46:54.581 1360 WARNING nova.compute.resource_tracker [req-58c84fea-43f8-4249-ba0d-6e1568570a89 - - - - -] [instance: c2ac3308-27e8-4b6e-b014-2c7e110a95af] Instance not resizing, skipping migration. 2016-05-23 16:46:54.613 1360 WARNING nova.compute.resource_tracker [req-58c84fea-43f8-4249-ba0d-6e1568570a89 - - - - -] [instance: 9b77ccbf-f120-49e3-b6c3-3593a4fb444b] Instance not resizing, skipping migration. 2016-05-23 16:46:54.614 1360 INFO nova.compute.resource_tracker [req-58c84fea-43f8-4249-ba0d-6e1568570a89 - - - - -] Total usable vcpus: 4, total allocated vcpus: 0 thanks for any advice
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