yahoo-eng-team team mailing list archive

["Alexey I. Froloff" <1617291@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Neutron network driver in Nova creates new port unless port_id is
specified.  If instance is rescheduled for some reason, these ports
should either be deleted or re-used on next try.  Reuse doesn't happen
because Neutron driver in Nova creates new port unless port_id is
specified.  New port is then created and instance gets multiple ports
(one for each reschedule attempt) while only one is "correct".

This happens because on reschedule network cleanup only happens if virt
driver tells to deallocate_networks_on_reschedule (which is only true
for Ironic driver).

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1617291

Title:
  Nova creates duplicate Neutron ports on instance reschedule

Status in OpenStack Compute (nova):
  New

Bug description:
  Neutron network driver in Nova creates new port unless port_id is
  specified.  If instance is rescheduled for some reason, these ports
  should either be deleted or re-used on next try.  Reuse doesn't happen
  because Neutron driver in Nova creates new port unless port_id is
  specified.  New port is then created and instance gets multiple ports
  (one for each reschedule attempt) while only one is "correct".

  This happens because on reschedule network cleanup only happens if
  virt driver tells to deallocate_networks_on_reschedule (which is only
  true for Ironic driver).

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