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[Eugene Nikanorov <enikanorov@xxxxxxxxxxxx>]

Public bug reported:

The following traceback has been observed in the gate jobs (it doesn't
lead to a job's failure though):

 TRACE neutron.api.v2.resource Traceback (most recent call last):
 TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/api/v2/resource.py", line 83, in resource
 TRACE neutron.api.v2.resource     result = method(request=request, **args)
 TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/api/v2/base.py", line 311, in index
 TRACE neutron.api.v2.resource     return self._items(request, True, parent_id)
 TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/api/v2/base.py", line 245, in _items
 TRACE neutron.api.v2.resource     obj_list = obj_getter(request.context, **kwargs)
 TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/db/securitygroups_db.py", line 178, in get_security_groups
 TRACE neutron.api.v2.resource     self._ensure_default_security_group(context, tenant_id)
 TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/db/securitygroups_db.py", line 553, in _ensure_default_security_group
 TRACE neutron.api.v2.resource     return default_group['security_group_id']
 TRACE neutron.api.v2.resource   File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
 TRACE neutron.api.v2.resource     self.gen.next()
 TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/db/api.py", line 59, in autonested_transaction
 TRACE neutron.api.v2.resource     yield tx
 TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 482, in __exit__
 TRACE neutron.api.v2.resource     self.rollback()
 TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/util/langhelpers.py", line 60, in __exit__
 TRACE neutron.api.v2.resource     compat.reraise(exc_type, exc_value, exc_tb)
 TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 479, in __exit__
 TRACE neutron.api.v2.resource     self.commit()
 TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 382, in commit
 TRACE neutron.api.v2.resource     self._assert_active(prepared_ok=True)
 TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 218, in _assert_active
 TRACE neutron.api.v2.resource     "This Session's transaction has been rolled back "
 TRACE neutron.api.v2.resource InvalidRequestError: This Session's transaction has been rolled back by a nested rollback() call.  To begin a new transaction, issue Session.rollback() first.

Example:

http://logs.openstack.org/17/165117/6/check/check-tempest-dsvm-neutron-
pg/7017248/logs/screen-q-svc.txt.gz?level=TRACE

** Affects: neutron
     Importance: High
     Assignee: Eugene Nikanorov (enikanorov)
         Status: Confirmed

** Description changed:

- The following traceback has been observed in the gate jobs:
+ The following traceback has been observed in the gate jobs (it doesn't
+ lead to a job's failure though):
  
-  TRACE neutron.api.v2.resource Traceback (most recent call last):
-  TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/api/v2/resource.py", line 83, in resource
-  TRACE neutron.api.v2.resource     result = method(request=request, **args)
-  TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/api/v2/base.py", line 311, in index
-  TRACE neutron.api.v2.resource     return self._items(request, True, parent_id)
-  TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/api/v2/base.py", line 245, in _items
-  TRACE neutron.api.v2.resource     obj_list = obj_getter(request.context, **kwargs)
-  TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/db/securitygroups_db.py", line 178, in get_security_groups
-  TRACE neutron.api.v2.resource     self._ensure_default_security_group(context, tenant_id)
-  TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/db/securitygroups_db.py", line 553, in _ensure_default_security_group
-  TRACE neutron.api.v2.resource     return default_group['security_group_id']
-  TRACE neutron.api.v2.resource   File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
-  TRACE neutron.api.v2.resource     self.gen.next()
-  TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/db/api.py", line 59, in autonested_transaction
-  TRACE neutron.api.v2.resource     yield tx
-  TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 482, in __exit__
-  TRACE neutron.api.v2.resource     self.rollback()
-  TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/util/langhelpers.py", line 60, in __exit__
-  TRACE neutron.api.v2.resource     compat.reraise(exc_type, exc_value, exc_tb)
-  TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 479, in __exit__
-  TRACE neutron.api.v2.resource     self.commit()
-  TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 382, in commit
-  TRACE neutron.api.v2.resource     self._assert_active(prepared_ok=True)
-  TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 218, in _assert_active
-  TRACE neutron.api.v2.resource     "This Session's transaction has been rolled back "
-  TRACE neutron.api.v2.resource InvalidRequestError: This Session's transaction has been rolled back by a nested rollback() call.  To begin a new transaction, issue Session.rollback() first.
+  TRACE neutron.api.v2.resource Traceback (most recent call last):
+  TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/api/v2/resource.py", line 83, in resource
+  TRACE neutron.api.v2.resource     result = method(request=request, **args)
+  TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/api/v2/base.py", line 311, in index
+  TRACE neutron.api.v2.resource     return self._items(request, True, parent_id)
+  TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/api/v2/base.py", line 245, in _items
+  TRACE neutron.api.v2.resource     obj_list = obj_getter(request.context, **kwargs)
+  TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/db/securitygroups_db.py", line 178, in get_security_groups
+  TRACE neutron.api.v2.resource     self._ensure_default_security_group(context, tenant_id)
+  TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/db/securitygroups_db.py", line 553, in _ensure_default_security_group
+  TRACE neutron.api.v2.resource     return default_group['security_group_id']
+  TRACE neutron.api.v2.resource   File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
+  TRACE neutron.api.v2.resource     self.gen.next()
+  TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/db/api.py", line 59, in autonested_transaction
+  TRACE neutron.api.v2.resource     yield tx
+  TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 482, in __exit__
+  TRACE neutron.api.v2.resource     self.rollback()
+  TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/util/langhelpers.py", line 60, in __exit__
+  TRACE neutron.api.v2.resource     compat.reraise(exc_type, exc_value, exc_tb)
+  TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 479, in __exit__
+  TRACE neutron.api.v2.resource     self.commit()
+  TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 382, in commit
+  TRACE neutron.api.v2.resource     self._assert_active(prepared_ok=True)
+  TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 218, in _assert_active
+  TRACE neutron.api.v2.resource     "This Session's transaction has been rolled back "
+  TRACE neutron.api.v2.resource InvalidRequestError: This Session's transaction has been rolled back by a nested rollback() call.  To begin a new transaction, issue Session.rollback() first.
  
  Example:
  
  http://logs.openstack.org/17/165117/6/check/check-tempest-dsvm-neutron-
  pg/7017248/logs/screen-q-svc.txt.gz?level=TRACE

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https://bugs.launchpad.net/bugs/1435919

Title:
  Traceback on listing security groups

Status in OpenStack Neutron (virtual network service):
  Confirmed

Bug description:
  The following traceback has been observed in the gate jobs (it doesn't
  lead to a job's failure though):

   TRACE neutron.api.v2.resource Traceback (most recent call last):
   TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/api/v2/resource.py", line 83, in resource
   TRACE neutron.api.v2.resource     result = method(request=request, **args)
   TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/api/v2/base.py", line 311, in index
   TRACE neutron.api.v2.resource     return self._items(request, True, parent_id)
   TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/api/v2/base.py", line 245, in _items
   TRACE neutron.api.v2.resource     obj_list = obj_getter(request.context, **kwargs)
   TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/db/securitygroups_db.py", line 178, in get_security_groups
   TRACE neutron.api.v2.resource     self._ensure_default_security_group(context, tenant_id)
   TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/db/securitygroups_db.py", line 553, in _ensure_default_security_group
   TRACE neutron.api.v2.resource     return default_group['security_group_id']
   TRACE neutron.api.v2.resource   File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
   TRACE neutron.api.v2.resource     self.gen.next()
   TRACE neutron.api.v2.resource   File "/opt/stack/new/neutron/neutron/db/api.py", line 59, in autonested_transaction
   TRACE neutron.api.v2.resource     yield tx
   TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 482, in __exit__
   TRACE neutron.api.v2.resource     self.rollback()
   TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/util/langhelpers.py", line 60, in __exit__
   TRACE neutron.api.v2.resource     compat.reraise(exc_type, exc_value, exc_tb)
   TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 479, in __exit__
   TRACE neutron.api.v2.resource     self.commit()
   TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 382, in commit
   TRACE neutron.api.v2.resource     self._assert_active(prepared_ok=True)
   TRACE neutron.api.v2.resource   File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 218, in _assert_active
   TRACE neutron.api.v2.resource     "This Session's transaction has been rolled back "
   TRACE neutron.api.v2.resource InvalidRequestError: This Session's transaction has been rolled back by a nested rollback() call.  To begin a new transaction, issue Session.rollback() first.

  Example:

  http://logs.openstack.org/17/165117/6/check/check-tempest-dsvm-
  neutron-pg/7017248/logs/screen-q-svc.txt.gz?level=TRACE

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