Public bug reported: During instance creation, we call _validate_bdm to valid block device mappings boot indexes, accessibility, attachability, etc and we call the Cinder API to do some of that. We query the service version to decide which Cinder APIs to call and currently, we aren't querying all cells for the service version. Because we're creating an instance, we don't yet know what cell it will land in, so we must query all cells to correctly get the service version. Else, we get a service version of 0 and we'll use the old 'check_attach' Cinder API instead of the newer 'reserve_volume' API in a multi-cell environment.
https://github.com/openstack/nova/blob/c1442d3/nova/compute/api.py#L1326 I found this while working on improvements for the CellDatabases test fixture. ** Affects: nova Importance: Undecided Assignee: melanie witt (melwitt) Status: In Progress ** Tags: cells -- 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/1746634 Title: _validate_bdm not using the 'reserve_volume' Cinder API in a multi- cell environment Status in OpenStack Compute (nova): In Progress Bug description: During instance creation, we call _validate_bdm to valid block device mappings boot indexes, accessibility, attachability, etc and we call the Cinder API to do some of that. We query the service version to decide which Cinder APIs to call and currently, we aren't querying all cells for the service version. Because we're creating an instance, we don't yet know what cell it will land in, so we must query all cells to correctly get the service version. Else, we get a service version of 0 and we'll use the old 'check_attach' Cinder API instead of the newer 'reserve_volume' API in a multi-cell environment. https://github.com/openstack/nova/blob/c1442d3/nova/compute/api.py#L1326 I found this while working on improvements for the CellDatabases test fixture. To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1746634/+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
