dc51a4271b
Nova-conductor puts instance in error if an unknown exception is raised in the _build_live_migrate_task during the live-migration. [1] The exception comes from _call_livem_checks_on_host and we can see raise exception.MigrationPreCheckError if we face to messaging.MessagingTimeout exception for example. [2] The function check_can_live_migrate_destination does a check also on source host with check_can_live_migrate_source [3] and this check can also return exceptions like MessagingTimeout and this one is not caught properly because it's a remote "Remote error: MessagingTimeout" due to dest host try to contact source host and this source host not reply. [1] https://github.com/openstack/nova/blob/master/nova/conductor/manager.py#L523 [2] https://github.com/openstack/nova/blob/master/nova/conductor/tasks/live_migrate.py#L381 [3] https://github.com/openstack/nova/blob/master/nova/compute/manager.py#L9090 Closes-Bug: #2044235 Change-Id: Ie1f96fee743c235ab35113a9ad1549a67b975839 Signed-off-by: Julien Le Jeune <julien.le-jeune@ovhcloud.com>