[Expired for neutron because there has been no activity for 60 days.]

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

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https://bugs.launchpad.net/bugs/1589392

Title:
  neutron-server reports "ResourceClosedError: This result object does
  not return rows. It has been closed automatically."

Status in neutron:
  Expired

Bug description:
  neutron-server (kilo-version) reports the following errors when
  running our test scripts. (create 2000 VMs in parallel)

  2016-06-06 13:13:35.037 26569 DEBUG neutron.db.db_base_plugin_v2 
[req-b896ed1d-b6de-48ca-9ac7-5c5426c126e8 ] Allocated IP - 10.1.21.160 from 
10.1.21.160 to 10.1.255.254 _try_generate_ip 
/usr/lib/python2.7/site-packages/neutron/db/db_base_plugin_v2.py:224
  2016-06-06 13:13:35.037 26569 DEBUG neutron.db.db_base_plugin_v2 
[req-b896ed1d-b6de-48ca-9ac7-5c5426c126e8 ] Allocated IP 10.1.21.160 
(268e3fc9-187b-40a4-abb6-e261fd5c3dc0/7b39676e-9c13-4b40-9aca-484f9e9dfaf3/bb0ba575-7d6f-4d43-a6ca-aeaa75ced013)
 _store_ip_allocation 
/usr/lib/python2.7/site-packages/neutron/db/db_base_plugin_v2.py:174
  2016-06-06 13:13:35.048 26575 INFO neutron.wsgi 
[req-2a67ea36-7544-4fe5-b8cf-325f60fb1a02 ] 172.20.52.246,172.20.72.14 - - 
[06/Jun/2016 13:13:35] "GET 
/v2.0/floatingips.json?fixed_ip_address=10.1.21.49&port_id=aa68a8a3-f4fb-4106-a07f-50e62eddfff1
 HTTP/1.1" 200 208 0.030703
  2016-06-06 13:13:35.053 26565 INFO neutron.wsgi [-] (26565) accepted 
('172.20.72.14', 37930)
  2016-06-06 13:13:35.067 26567 ERROR oslo_db.sqlalchemy.exc_filters 
[req-e0ecf652-3934-48b0-b509-39c2b9b013ad ] DB exception wrapped.
  2016-06-06 13:13:35.067 26567 TRACE oslo_db.sqlalchemy.exc_filters Traceback 
(most recent call last):
  2016-06-06 13:13:35.067 26567 TRACE oslo_db.sqlalchemy.exc_filters   File 
"/usr/lib64/python2.7/site-packages/sqlalchemy/engine/result.py", line 781, in 
fetchall
  2016-06-06 13:13:35.067 26567 TRACE oslo_db.sqlalchemy.exc_filters     l = 
self.process_rows(self._fetchall_impl())
  2016-06-06 13:13:35.067 26567 TRACE oslo_db.sqlalchemy.exc_filters   File 
"/usr/lib64/python2.7/site-packages/sqlalchemy/engine/result.py", line 750, in 
_fetchall_impl
  2016-06-06 13:13:35.067 26567 TRACE oslo_db.sqlalchemy.exc_filters     
self._non_result()
  2016-06-06 13:13:35.067 26567 TRACE oslo_db.sqlalchemy.exc_filters   File 
"/usr/lib64/python2.7/site-packages/sqlalchemy/engine/result.py", line 755, in 
_non_result
  2016-06-06 13:13:35.067 26567 TRACE oslo_db.sqlalchemy.exc_filters     "This 
result object does not return rows. "
  2016-06-06 13:13:35.067 26567 TRACE oslo_db.sqlalchemy.exc_filters 
ResourceClosedError: This result object does not return rows. It has been 
closed automatically.
  2016-06-06 13:13:35.067 26567 TRACE oslo_db.sqlalchemy.exc_filters
  2016-06-06 13:13:35.070 26567 ERROR neutron.api.v2.resource 
[req-e0ecf652-3934-48b0-b509-39c2b9b013ad ] create failed

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