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[OpenStack Infra <1669528@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/441231
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=fc563eaabec392281be90bd2472bed4f6506cb40
Submitter: Jenkins
Branch:    master

commit fc563eaabec392281be90bd2472bed4f6506cb40
Author: Kevin Benton <kevin@xxxxxxxxxx>
Date:   Fri Mar 3 08:51:33 2017 -0800

    deepcopy binding and binding levels avoid expiration
    
    Perform a deepcopy on the sqla objects passed into the PortContext
    so we get detached versions of them safe to reference forever.
    This is necessary because the PortContexts outlive the
    transaction context managers they are creating in which means an
    object can be expired and result in a query after a commit
    (e.g. in bind_port_if_needed) that will fail and result in an
    exception.
    
    This required a few additional explicit session.merge calls to deal
    with cases where touching the mech context was implicitly expected
    to modify the DB state on the next commit.
    
    Closes-Bug: #1669528
    Change-Id: Ib5ba2daa80acba53c082bade1f61a3ee44ca41fc


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1669528

Title:
  portbinding update fails with ObjectDeletedError

Status in neutron:
  Fix Released

Bug description:
  The gate-tempest-dsvm-neutron-linuxbridge-ubuntu-xenial gate failed in
  a recent neutron change [1]. Digging into the logs [2] it appears to
  be DB related::

  --
  2017-03-01 15:47:17.800 1412 ERROR oslo_messaging.rpc.server ObjectDeletedError: Instance '<PortBinding at 0x7f9abdd7af10>' has been deleted, or its row is otherwise not present.
  --

  Based on logstash [3], this appears to be a frequent error. It's not
  clear to me if neutron is really the issue here, or if something else
  is happening and causing the neutron error.


  [1] https://review.openstack.org/#/c/422210/
  [2] http://logs.openstack.org/10/422210/9/check/gate-tempest-dsvm-neutron-linuxbridge-ubuntu-xenial/f639199/logs/screen-q-svc.txt.gz?
  [3] http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22ObjectDeletedError%5C%22

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