yahoo-eng-team team mailing list archive

[Edward Hope-Morley <1943639@xxxxxxxxxxxxxxxxxx>]

This patch was merged to master during the Yoga development cycle and is
available in the following point releases upstream:

  (yoga) 22.0.0
  (xena) 20.1.3

The Ubuntu archives currently have the following versions:

  Yoga - 4:22.1.0-0ubuntu2.1~cloud0
  Xena - 4:20.1.4-0ubuntu1~cloud1
  Wallaby - 4:19.4.0-0ubuntu1~cloud1
  Victoria - 4:18.6.4-0ubuntu1~cloud1
  Ussuri - 3:18.3.5-0ubuntu2.1

So to get this patch backported to Ussuri, it first needs to be SRUd to
Wallaby and Victoria UCA.

** Also affects: cloud-archive/xena
   Importance: Undecided
       Status: New

** Also affects: cloud-archive/victoria
   Importance: Undecided
       Status: New

** Also affects: cloud-archive/wallaby
   Importance: Undecided
       Status: New

** Changed in: cloud-archive/xena
       Status: New => Fix Released

-- 
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Dashboard (Horizon).
https://bugs.launchpad.net/bugs/1943639

Title:
  project/instances/attach_interface has O(N) scaling time complexity
  for opening form

Status in Ubuntu Cloud Archive:
  New
Status in Ubuntu Cloud Archive ussuri series:
  New
Status in Ubuntu Cloud Archive victoria series:
  New
Status in Ubuntu Cloud Archive wallaby series:
  New
Status in Ubuntu Cloud Archive xena series:
  Fix Released
Status in OpenStack Dashboard (Horizon):
  Fix Released
Status in horizon package in Ubuntu:
  New
Status in horizon source package in Focal:
  New

Bug description:
  [ Impact ]

  The time complexity of opening the project/instances/attach_interface
  form box is O(N) where N is the number of networks in the project with
  a large prefactor.

  This is due to

  https://opendev.org/openstack/horizon/src/branch/master/openstack_dashboard/dashboards/project/instances/utils.py#L210

  Which loops over the networks and requests the ports associated with
  the network. For large projects this scaling behavior can become
  prohibitive.

  The patch [1] addresses this issue by reducing the number of API calls
  and hence the prefactor of the algorithm.

  [ Test Plan ]

  In order to reproduce the issue, create a Nova VM and then add many
  networks. On the instances tab in the Horizon UI click on "attach
  interface" for the VM. It will take a moment for the dialog to appear.
  The exact time until the dialog appears will depend on the number of
  networks linearly.

  With [1] the time it takes for the dialog box to appear will be
  significantly shorter.

  [ Where problems could occur ]

  The patch [1] affects the "attach interface" dialog box and could
  break this UI feature in case something was wrong with the
  implementation. It is also possible that due to a bug in the
  implementation some networks are missing from the dialog.

  [1] https://review.opendev.org/c/openstack/horizon/+/866895

To manage notifications about this bug go to:
https://bugs.launchpad.net/cloud-archive/+bug/1943639/+subscriptions