1c056c384d
The cross-cell resize code does not consider neutron ports with resource request. To avoid migration failures this patch makes nova to fall back to same cell resize if the instance has neutron ports with resource request. Change-Id: Icaad4b2375b491c8a7e87fb6f4977ae2e13e8190 Closes-Bug: #1907522
1.8 KiB
Using ports with resource request
Starting from microversion 2.72 nova supports creating servers with
neutron ports having resource request visible as a admin-only port
attribute resource_request. For example a neutron port has
resource request if it has a QoS minimum bandwidth rule attached.
Deleting such servers or detaching such ports works since Stein version
of nova without requiring any specific microversion.
However the following API operations are still not supported in nova:
- Creating servers with neutron networks having QoS minimum bandwidth rule is not supported. The user needs to pre-create the port in that neutron network and create the server with the pre-created port.
- Attaching Neutron ports and networks having QoS minimum bandwidth rule is not supported.
Also the following API operations are not supported in the 19.0.0 (Stein) version of nova:
- Moving (resizing, migrating, live-migrating, evacuating, unshelving after shelve offload) servers with ports having resource request is not yet supported.
As of 20.0.0 (Train), nova supports cold migrating and resizing
servers with neutron ports having resource requests if both the source
and destination compute services are upgraded to 20.0.0 (Train) and the
[upgrade_levels]/compute configuration does not prevent the
computes from using the latest RPC version. However cross cell resize
and cross cell migrate operations are still not supported with such
ports and Nova will fall back to same-cell resize if the server has such
ports.
As of 21.0.0 (Ussuri), nova supports evacuating, live migrating and unshelving servers with neutron ports having resource requests.
See the admin guide <admin/port_with_resource_request.html>
for administrative details.