Landscape Client

Filter out tap interfaces in landscape-sysinfo

Bug #2006396 reported by Mitch Burton
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Landscape Client
Fix Released
High
Mitch Burton
landscape-client (Ubuntu)
Fix Released
Undecided
Unassigned

Bug Description

Support requests have indicated that we have a problem when there are many, many network interfaces. Collection of data regarding interfaces is O(m*n) and large amounts can cause significant slowdown during motd printing at the start of login sessions.

Previous work has been done to reduce reliance on O(n^2) methods from netifaces, but the above O(m*n) is (imo) a hard lower limit on collecting address info.

Proposed fix is to filter out tap interfaces in landscape-sysinfo, which are many in neutron-gateway hosts.

Revision history for this message
Mitch Burton (mitchburton) wrote :

PR: https://github.com/CanonicalLtd/landscape-client/pull/119

Changed in landscape-client:
importance: Undecided → High
Revision history for this message
Kevin Nasto (silverdrake11) wrote :

This is similar to this https://bugs.launchpad.net/ubuntu/+source/landscape-client/+bug/1944204

Although that one was filter out virtual interfaces, this is filter out tap interfaces

Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package landscape-client - 23.02-0ubuntu1

---------------
landscape-client (23.02-0ubuntu1) lunar; urgency=medium

  * New upstream release 23.02:
    - Preventing the generation of large messages and logs that can overwhelm
      Landscape Server (LP: #1995775)
    - Improved MOTD slowdown on machines with many tap network interfaces
      (LP: #2006396)
    - No longer using deprecated apt-key when storing trusted GPG keys
      (LP: #1973202)
    - Fixed issue recognising Parallels VMs as Virtual Machine clients
      (LP: #1827909)
    - Fixes for incorrect logfile rotation config (LP: #1968189)
    - Client-side backoff handling to moderate traffic to Landscape Server
      during high load (LP: #1947399)
    - Avoid sending empty messages when catching up to expected next message
      (LP: #1917540)
    - --is-registered CLI option to quickly check if client is registered
      (LP: #1912516)
    - Can now report Ubuntu Pro attachment information if the version of
      Landscape Server it is registered to supports this (LP: #2006401)
    - Packages installed as dependencies as part of package profiles are now
      appropriately autoremovable (LP: #1878957)
    - Registration timeouts give an error instead of timing out (LP: #1889464)
    - RHEV hypervisor VMs are now recognized as virtual machines (LP: #1884116)
    - Doing a Landscape-driven release upgrade from a release running python 2
      to one running python 3 no longer hangs forever (LP: #1943291)

 -- Mitch Burton <email address hidden> Wed, 08 Feb 2023 10:23:31 -0800

Changed in landscape-client (Ubuntu):
status: New → Fix Released
Mitch Burton (mitchburton)
Changed in landscape-client:
status: Fix Committed → Fix Released
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