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[Launchpad Bug Tracker <1681055@xxxxxxxxxxxxxxxxxx>]

[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/1681055

Title:
  delete network  failed with ERROR ‘ DBError: Can't reconnect until
  invalid transaction is rolled back’

Status in neutron:
  Expired

Bug description:
  My env is Newton branch, i got a error when i delete a network, the
  error log is below:

  delete failed: Exception auto-deleting port 4213e9ef-2ea1-43f4-b0d4-ff54fce9031d
   Traceback (most recent call last):
     File "/usr/lib/python2.7/site-packages/neutron/api/v2/resource.py", line 79, in resource
       result = method(request=request, **args)
     File "/usr/lib/python2.7/site-packages/neutron/api/v2/base.py", line 555, in delete
       return self._delete(request, id, **kwargs)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 88, in wrapped
       setattr(e, '_RETRY_EXCEEDED', True)
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
       self.force_reraise()
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
       six.reraise(self.type_, self.value, self.tb)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 84, in wrapped
       return f(*args, **kwargs)
     File "/usr/lib/python2.7/site-packages/oslo_db/api.py", line 151, in wrapper
       ectxt.value = e.inner_exc
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
       self.force_reraise()
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
       six.reraise(self.type_, self.value, self.tb)
     File "/usr/lib/python2.7/site-packages/oslo_db/api.py", line 139, in wrapper
       return f(*args, **kwargs)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 124, in wrapped
       traceback.format_exc())
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
       self.force_reraise()
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
       six.reraise(self.type_, self.value, self.tb)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 119, in wrapped
       return f(*dup_args, **dup_kwargs)
     File "/usr/lib/python2.7/site-packages/neutron/api/v2/base.py", line 577, in _delete
       obj_deleter(request.context, id, **kwargs)
     File "/usr/lib/python2.7/site-packages/neutron/common/utils.py", line 756, in inner
       return f(self, context, *args, **kwargs)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 159, in wrapped
       return method(*args, **kwargs)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 88, in wrapped
       setattr(e, '_RETRY_EXCEEDED', True)
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
       self.force_reraise()
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
       six.reraise(self.type_, self.value, self.tb)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 84, in wrapped
       return f(*args, **kwargs)
     File "/usr/lib/python2.7/site-packages/oslo_db/api.py", line 151, in wrapper
       ectxt.value = e.inner_exc
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
       self.force_reraise()
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
       six.reraise(self.type_, self.value, self.tb)
     File "/usr/lib/python2.7/site-packages/oslo_db/api.py", line 139, in wrapper
       return f(*args, **kwargs)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 124, in wrapped
       traceback.format_exc())
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
       self.force_reraise()
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
       six.reraise(self.type_, self.value, self.tb)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 119, in wrapped
       return f(*dup_args, **dup_kwargs)
     File "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/plugin.py", line 972, in delete_network
       self._delete_ports(context, port_ids)
     File "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/plugin.py", line 878, in _delete_ports
       _LE("Exception auto-deleting port %s"), port_id)
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
       self.force_reraise()
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
       six.reraise(self.type_, self.value, self.tb)
     File "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/plugin.py", line 869, in _delete_ports
       self.delete_port(context, port_id)
     File "/usr/lib/python2.7/site-packages/neutron/common/utils.py", line 756, in inner
       return f(self, context, *args, **kwargs)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 159, in wrapped
       return method(*args, **kwargs)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 88, in wrapped
       setattr(e, '_RETRY_EXCEEDED', True)
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
       self.force_reraise()
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
       six.reraise(self.type_, self.value, self.tb)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 84, in wrapped
       return f(*args, **kwargs)
     File "/usr/lib/python2.7/site-packages/oslo_db/api.py", line 151, in wrapper
       ectxt.value = e.inner_exc
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
       self.force_reraise()
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
       six.reraise(self.type_, self.value, self.tb)
     File "/usr/lib/python2.7/site-packages/oslo_db/api.py", line 139, in wrapper
       return f(*args, **kwargs)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 124, in wrapped
       traceback.format_exc())
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
       self.force_reraise()
     File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
       six.reraise(self.type_, self.value, self.tb)
     File "/usr/lib/python2.7/site-packages/neutron/db/api.py", line 119, in wrapped
       return f(*dup_args, **dup_kwargs)
     File "/usr/lib/python2.7/site-packages/neutron/plugins/ml2/plugin.py", line 1628, in delete_port
       super(Ml2Plugin, self).delete_port(context, id)
     File "/usr/lib64/python2.7/site-packages/sqlalchemy/orm/session.py", line 492, in __exit__
       self.rollback()
     File "/usr/lib64/python2.7/site-packages/sqlalchemy/orm/session.py", line 419, in rollback
       transaction._rollback_impl()
     File "/usr/lib64/python2.7/site-packages/sqlalchemy/orm/session.py", line 449, in _rollback_impl
       t[1].rollback()
     File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 1563, in rollback
       self._do_rollback()
     File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 1601, in _do_rollback
       self.connection._rollback_impl()
     File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 662, in _rollback_impl
       self.dispatch.rollback(self)
     File "/usr/lib64/python2.7/site-packages/sqlalchemy/event/attr.py", line 256, in __call__
       fn(*args, **kw)
     File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/exc_filters.py", line 476, in pop_exc_tx
       conn.info.pop(ROLLBACK_CAUSE_KEY, None)
     File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 425, in info
       return self.connection.info
     File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 318, in connection
       self._handle_dbapi_exception(e, None, None, None, None)
     File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 1337, in _handle_dbapi_exception
       util.raise_from_cause(newraise, exc_info)
     File "/usr/lib64/python2.7/site-packages/sqlalchemy/util/compat.py", line 202, in raise_from_cause
       reraise(type(exception), exception, tb=exc_tb, cause=cause)
     File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 316, in connection
       return self._revalidate_connection()
     File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 391, in _revalidate_connection
       "Can't reconnect until invalid "
   DBError: Can't reconnect until invalid transaction is rolled back

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