** Changed in: horizon (Ubuntu) Status: New => Fix Released ** Changed in: cloud-archive 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: Fix Released 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: Fix Released 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 -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp