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[Lucas Alvares Gomes <1832003@xxxxxxxxxxxxxxxxxx>]

Fixed by https://review.opendev.org/#/c/713956/

** Changed in: neutron
       Status: New => Fix Committed

** Changed in: neutron
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1832003

Title:
  [OVN] Left-over namespaces left in the environment by ovn-metadata-
  agent

Status in neutron:
  Fix Released

Bug description:
  After running performance tests (with browbeat [0]) in a lab it was
  noticed that the ovn-metadata-agent is leaving some namespaces left in
  the environment:

  $ ip netns
  ovnmeta-99cb0c5f-5f1d-4634-977c-0ef5ea0ef3d0 (id: 4)                                                                         
  ovnmeta-5467b566-4a63-49f8-a9dc-105f0399e890 (id: 3)
  ovnmeta-a20ab2b6-74a0-42cf-8206-6dfa570e957c (id: 2)
  ovnmeta-ab536132-e15e-474e-b511-a2569a35b540 (id: 1)
  ...

  Things are cleaned up upon restarting the ovn-metadata-agent
  service/container:

  2019-06-07 12:23:09.065 1047753 INFO networking_ovn.agent.metadata.agent [-] Cleaning up ovnmeta-a17e6f3e-ea14-45b8-aba4-8212019ed58a namespace which is not needed anymore
  2019-06-07 12:23:10.136 1047753 INFO networking_ovn.agent.metadata.agent [-] Cleaning up ovnmeta-bec3e303-ea0a-465a-8a4f-50505b114fd5 namespace which is not needed anymore 
  2019-06-07 12:23:11.206 1047753 INFO networking_ovn.agent.metadata.agent [-] Cleaning up ovnmeta-c81b8353-286c-46ab-b0f0-5ecbc45c98c0 namespace which is not needed anymore 
  2019-06-07 12:23:12.292 1047753 INFO networking_ovn.agent.metadata.agent [-] Cleaning up ovnmeta-24d8793c-a3ae-4d57-8620-9f1318d8cf6e namespace which is not needed anymore
  ...

  [0] https://github.com/cloud-bulldozer/browbeat

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