Evacuate behavior changes are so dicey at this point that I think anything like this probably needs a spec to actually think through the edge conditions.
Please dive in here if you are interested - https://specs.openstack.org/openstack/nova-specs/readme.html ** Tags added: evacuate ** Changed in: nova Status: New => Opinion ** Changed in: nova Importance: Undecided => Wishlist -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1659062 Title: Failed evacuations leave neutron ports on destination host Status in OpenStack Compute (nova): Opinion Bug description: Description =========== This is related to https://bugs.launchpad.net/nova/+bug/1430042 and the associated fix https://review.openstack.org/#/c/169827/; if an evacuation fails there is no reverting of the neutron ports' host_id binding back to the source host. This may or may not be a bug, but if the evacuation fails and the source host comes back up and VMs are expected to be running, then the neutron ports should probably be rolled back. Steps to reproduce ================== * Raise an exception at some point in the evacuation flow after the setup_instance_network_on_host calls in _do_rebuild_instance in the manager * Issue an evacuation of a VM to the host that will fail Expected result =============== * If the evacuation fails the expectation would be to have the neutron ports have their host_id binding updated to be the source host. Actual result ============= * The ports host_id bindings remain as the destination host. Environment =========== 1. Exact version of OpenStack you are running. See the following Newton 2. Which hypervisor did you use? PowerVM 2. Which storage type did you use? N/A 3. Which networking type did you use? Neutron with SEA To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1659062/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
