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[Bug 1187701] Re: NEC plugin fails to process portinfo message after port delete

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Wed, 17 Jul 2013 11:57:27 -0000
Reply-to: Bug 1187701 <1187701@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

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

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https://bugs.launchpad.net/bugs/1187701

Title:
  NEC plugin fails to process portinfo message after port delete

Status in OpenStack Neutron (virtual network service):
  Fix Released
Status in neutron grizzly series:
  Fix Committed

Bug description:
  portinfo RPC message (port_removed, port_added) in NEC plugin may be
  sent after the corresponding quantum port is deleted. A portinfo RPC
  message can contain multiple added/removed portinfo and if an
  exception occurs the remaining portinfos are not processed.

  The failure in port_removed can happen in a usual operationing. The
  order of quantum port deletion and port_removed message is not
  ensured, since NEC plugin agent polls OVS ports by polling ovsdb.

  The failure in port_added does not happen in usual operation. It may
  occur in a case where some OVS ports are not removed successfully for
  some reason and nec-agent is restarted after that.

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