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[Rodolfo Alonso <1699390@xxxxxxxxxxxxxxxxxx>]

Bug closed due to lack of activity, please feel free to reopen if
needed.

** Changed in: neutron
       Status: New => Incomplete

** Changed in: neutron
       Status: Incomplete => Won't Fix

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Title:
  provisioning_blocks NeutronDbObjectDuplicateEntry exception

Status in neutron:
  Won't Fix

Bug description:
  When hot migrating instance, It was error with log:

  2017-06-16 11:56:14.527 37207 ERROR neutron.plugins.ml2.managers   File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 1139, in _execute_context
  2017-06-16 11:56:14.527 37207 ERROR neutron.plugins.ml2.managers     context)
  2017-06-16 11:56:14.527 37207 ERROR neutron.plugins.ml2.managers   File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/default.py", line 450, in do_execute
  2017-06-16 11:56:14.527 37207 ERROR neutron.plugins.ml2.managers     
  2017-06-16 11:56:14.527 37207 ERROR neutron.plugins.ml2.managers DBDuplicateEntry: (pymysql.err.IntegrityError) (1062, u"Duplicate entry '2969-L2' for key 'PRIMARY'") [SQL: u'INSERT INTO provisioningblocks (standard_attr_id, entity) VALUES (%s, %s)'] [parameters: (2969, 'L2')]
  2017-06-16 11:56:14.527 37207 ERROR neutron.plugins.ml2.managers
  2017-06-16 11:56:14.533 37207 ERROR neutron.api.v2.resource [req-a8effb59-0563-4638-8f0e-342019185570 1ce07f2de1f3401b81e043a41d415b1c 0e705ba9f41a49c7aca8e61d32082022 - - -] update failed
  2017-06-16 11:56:14.533 37207 ERROR neutron.api.v2.resource Traceback (most recent call last):
  ......................
  "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/managers.py", line 660, in update_port_precommit
  2017-06-16 11:56:14.533 37207 ERROR neutron.api.v2.resource     raise_db_retriable=True)
  2017-06-16 11:56:14.533 37207 ERROR neutron.api.v2.resource   File "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/managers.py", line 424, in _call_on_drivers
  2017-06-16 11:56:14.533 37207 ERROR neutron.api.v2.resource     method=method_name
  2017-06-16 11:56:14.533 37207 ERROR neutron.api.v2.resource MechanismDriverError: update_port_precommit failed.
  2017-06-16 11:56:14.533 37207 ERROR neutron.api.v2.resource
  2017-06-16 11:56:14.536 37207 INFO neutron.wsgi [req-a8effb59-0563-4638-8f0e-342019185570 1ce07f2de1f3401b81e043a41d415b1c 0e705ba9f41a49c7aca8e61d32082022 - - -] 10.11.108.32,10.11.108.211 - - [16/Jun/2017 11:56:14] "PUT /v2.0/ports/fcbb6a33-1207-4238-b0fa-7509944038d8.json HTTP/1.1" 500 317 0.395132

  Detail log:  http://paste.openstack.org/show/613233/

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