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[Bug 1580270] [NEW] ValueError during TransactionQueue initialization with python3 and native ovsdb_interface

 

Public bug reported:

Steps to reproduce:

1) set ovsdb_interface = 'native' in config
2) run py34 tests (http://logs.openstack.org/55/299655/5/check/gate-neutron-python34/67766bb/testr_results.html.gz)

2 tests in
neutron.tests.unit.agent.linux.test_interface.TestOVSInterfaceDriverWithVeth
(test_plug_alt_bridge and test_plug_mtu) will fail with the following
output:

ft66.2: neutron.tests.unit.agent.linux.test_interface.TestOVSInterfaceDriverWithVeth.test_plug_alt_bridge_StringException: Empty attachments:
  pythonlogging:''
  stderr
  stdout

Traceback (most recent call last):
  File "/home/jenkins/workspace/gate-neutron-python34/neutron/tests/unit/agent/linux/test_interface.py", line 367, in test_plug_alt_bridge
    self._test_plug(bridge='br-foo')
  File "/home/jenkins/workspace/gate-neutron-python34/neutron/tests/unit/agent/linux/test_interface.py", line 502, in _test_plug
    prefix=prefix)
  File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/linux/interface.py", line 251, in plug
    bridge, namespace, prefix, mtu)
  File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/linux/interface.py", line 342, in plug_new
    internal=internal)
  File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/linux/interface.py", line 317, in _ovs_add_port
    ovs = ovs_lib.OVSBridge(bridge)
  File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/common/ovs_lib.py", line 180, in __init__
    super(OVSBridge, self).__init__()
  File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/common/ovs_lib.py", line 116, in __init__
    self.ovsdb = ovsdb.API.get(self)
  File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/ovsdb/api.py", line 88, in get
    interface_map[iface_name or cfg.CONF.OVS.ovsdb_interface])
  File "/home/jenkins/workspace/gate-neutron-python34/.tox/py34/lib/python3.4/site-packages/oslo_utils/importutils.py", line 30, in import_class
    __import__(mod_str)
  File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/ovsdb/impl_idl.py", line 110, in <module>
    class OvsdbIdl(api.API):
  File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/ovsdb/impl_idl.py", line 114, in OvsdbIdl
    'Open_vSwitch')
  File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/ovsdb/native/connection.py", line 58, in __init__
    self.txns = TransactionQueue(1)
  File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/ovsdb/native/connection.py", line 32, in __init__
    self.alertin = os.fdopen(alertpipe[0], 'r', 0)
  File "/home/jenkins/workspace/gate-neutron-python34/.tox/py34/lib/python3.4/site-packages/eventlet/green/os.py", line 28, in fdopen
    return greenio.GreenPipe(fd, *args, **kw)
  File "/home/jenkins/workspace/gate-neutron-python34/.tox/py34/lib/python3.4/site-packages/eventlet/greenio/py3.py", line 211, in GreenPipe
    return _open(name, mode, buffering, encoding, errors, newline, closefd, opener)
  File "/usr/lib/python3.4/_pyio.py", line 223, in open
    raise ValueError("can't have unbuffered text I/O")
ValueError: can't have unbuffered text I/O

** Affects: neutron
     Importance: Undecided
     Assignee: Inessa Vasilevskaya (ivasilevskaya)
         Status: New

** Changed in: neutron
     Assignee: (unassigned) => Inessa Vasilevskaya (ivasilevskaya)

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https://bugs.launchpad.net/bugs/1580270

Title:
  ValueError during TransactionQueue initialization with python3 and
  native ovsdb_interface

Status in neutron:
  New

Bug description:
  Steps to reproduce:

  1) set ovsdb_interface = 'native' in config
  2) run py34 tests (http://logs.openstack.org/55/299655/5/check/gate-neutron-python34/67766bb/testr_results.html.gz)

  2 tests in
  neutron.tests.unit.agent.linux.test_interface.TestOVSInterfaceDriverWithVeth
  (test_plug_alt_bridge and test_plug_mtu) will fail with the following
  output:

  ft66.2: neutron.tests.unit.agent.linux.test_interface.TestOVSInterfaceDriverWithVeth.test_plug_alt_bridge_StringException: Empty attachments:
    pythonlogging:''
    stderr
    stdout

  Traceback (most recent call last):
    File "/home/jenkins/workspace/gate-neutron-python34/neutron/tests/unit/agent/linux/test_interface.py", line 367, in test_plug_alt_bridge
      self._test_plug(bridge='br-foo')
    File "/home/jenkins/workspace/gate-neutron-python34/neutron/tests/unit/agent/linux/test_interface.py", line 502, in _test_plug
      prefix=prefix)
    File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/linux/interface.py", line 251, in plug
      bridge, namespace, prefix, mtu)
    File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/linux/interface.py", line 342, in plug_new
      internal=internal)
    File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/linux/interface.py", line 317, in _ovs_add_port
      ovs = ovs_lib.OVSBridge(bridge)
    File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/common/ovs_lib.py", line 180, in __init__
      super(OVSBridge, self).__init__()
    File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/common/ovs_lib.py", line 116, in __init__
      self.ovsdb = ovsdb.API.get(self)
    File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/ovsdb/api.py", line 88, in get
      interface_map[iface_name or cfg.CONF.OVS.ovsdb_interface])
    File "/home/jenkins/workspace/gate-neutron-python34/.tox/py34/lib/python3.4/site-packages/oslo_utils/importutils.py", line 30, in import_class
      __import__(mod_str)
    File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/ovsdb/impl_idl.py", line 110, in <module>
      class OvsdbIdl(api.API):
    File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/ovsdb/impl_idl.py", line 114, in OvsdbIdl
      'Open_vSwitch')
    File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/ovsdb/native/connection.py", line 58, in __init__
      self.txns = TransactionQueue(1)
    File "/home/jenkins/workspace/gate-neutron-python34/neutron/agent/ovsdb/native/connection.py", line 32, in __init__
      self.alertin = os.fdopen(alertpipe[0], 'r', 0)
    File "/home/jenkins/workspace/gate-neutron-python34/.tox/py34/lib/python3.4/site-packages/eventlet/green/os.py", line 28, in fdopen
      return greenio.GreenPipe(fd, *args, **kw)
    File "/home/jenkins/workspace/gate-neutron-python34/.tox/py34/lib/python3.4/site-packages/eventlet/greenio/py3.py", line 211, in GreenPipe
      return _open(name, mode, buffering, encoding, errors, newline, closefd, opener)
    File "/usr/lib/python3.4/_pyio.py", line 223, in open
      raise ValueError("can't have unbuffered text I/O")
  ValueError: can't have unbuffered text I/O

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