Public bug reported: Due to this recent change:
https://github.com/openstack/nova/commit/984dd8ad6add4523d93c7ce5a666a32233e02e34 And the fact that volume-backed instances don't store the instance.image_ref value to indicate they are volume-backed, this condition will always evaluate to True: https://github.com/openstack/nova/blob/984dd8ad6add4523d93c7ce5a666a32233e02e34/nova/compute/api.py#L2959 And we'll unnecessarily call through the scheduler again to validate the instance on the original host during the rebuild even if the image isn't changing. For a volume-backed instance, we have to get the original image_id from the volume's volume_image_metadata field: https://review.openstack.org/#/c/520686/ ** Affects: nova Importance: Undecided Status: Triaged ** Tags: rebuild ** Changed in: nova Status: New => Triaged -- 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/1732947 Title: volume-backed instance rebuild with no image change is still going through scheduler Status in OpenStack Compute (nova): Triaged Bug description: Due to this recent change: https://github.com/openstack/nova/commit/984dd8ad6add4523d93c7ce5a666a32233e02e34 And the fact that volume-backed instances don't store the instance.image_ref value to indicate they are volume-backed, this condition will always evaluate to True: https://github.com/openstack/nova/blob/984dd8ad6add4523d93c7ce5a666a32233e02e34/nova/compute/api.py#L2959 And we'll unnecessarily call through the scheduler again to validate the instance on the original host during the rebuild even if the image isn't changing. For a volume-backed instance, we have to get the original image_id from the volume's volume_image_metadata field: https://review.openstack.org/#/c/520686/ To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1732947/+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
