[ovs-discuss] BUG in OpenVswitch version

[masoom alam]

Hi every one,

Can any one spot why the following bug will appear in Openstack leaving all
services of Neutron to unusable state....?

To give you an idea that I was trying:

"I tried to configure 173.39.237.0 ip to a VM, with the CIDR 173.39.236.0/23,
however the OVS gave error and now all the neutron services are completely
unusable"

2015-02-04 05:25:06.993 TRACE
neutron.plugins.openvswitch.agent.ovs_neutron_agent Traceback (most recent
call last):
2015-02-04 05:25:06.993 TRACE
neutron.plugins.openvswitch.agent.ovs_neutron_agent   File
"/opt/stack/neutron/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py",
line 1197, in rpc_loop
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neutron.plugins.openvswitch.agent.ovs_neutron_agent     port_info =
self.scan_ports(ports, updated_ports_copy)
2015-02-04 05:25:06.993 TRACE
neutron.plugins.openvswitch.agent.ovs_neutron_agent   File
"/opt/stack/neutron/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py",
line 821, in scan_ports
2015-02-04 05:25:06.993 TRACE
neutron.plugins.openvswitch.agent.ovs_neutron_agent
updated_ports.update(self.check_changed_vlans(registered_ports))
2015-02-04 05:25:06.993 TRACE
neutron.plugins.openvswitch.agent.ovs_neutron_agent   File
"/opt/stack/neutron/neutron/plugins/openvswitch/agent/ovs_neutron_agent.py",
line 848, in check_changed_vlans
2015-02-04 05:25:06.993 TRACE
neutron.plugins.openvswitch.agent.ovs_neutron_agent     port_tags =
self.int_br.get_port_tag_dict()
2015-02-04 05:25:06.993 TRACE
neutron.plugins.openvswitch.agent.ovs_neutron_agent   File
"/opt/stack/neutron/neutron/agent/linux/ovs_lib.py", line 394, in
get_port_tag_dict
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neutron.plugins.openvswitch.agent.ovs_neutron_agent     result =
self.run_vsctl(args, check_error=True)
2015-02-04 05:25:06.993 TRACE
neutron.plugins.openvswitch.agent.ovs_neutron_agent   File
"/opt/stack/neutron/neutron/agent/linux/ovs_lib.py", line 67, in run_vsctl
2015-02-04 05:25:06.993 TRACE
neutron.plugins.openvswitch.agent.ovs_neutron_agent     return
utils.execute(full_args, root_helper=self.root_helper)
2015-02-04 05:25:06.993 TRACE
neutron.plugins.openvswitch.agent.ovs_neutron_agent   File
"/opt/stack/neutron/neutron/agent/linux/utils.py", line 75, in execute
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neutron.plugins.openvswitch.agent.ovs_neutron_agent     raise
RuntimeError(m)
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neutron.plugins.openvswitch.agent.ovs_neutron_agent RuntimeError:
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neutron.plugins.openvswitch.agent.ovs_neutron_agent Command: ['sudo',
'/usr/local/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf',
'ovs-vsctl', '--timeout=10', '--format=json', '--', '--columns=name,tag',
'list', 'Port']
2015-02-04 05:25:06.993 TRACE
neutron.plugins.openvswitch.agent.ovs_neutron_agent Exit code: 1
2015-02-04 05:25:06.993 TRACE
neutron.plugins.openvswitch.agent.ovs_neutron_agent Stdout: ''
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neutron.plugins.openvswitch.agent.ovs_neutron_agent Stderr: 'Traceback
(most recent call last):\n  File "/usr/local/bin/neutron-rootwrap", line 4,
in <module>\n
 __import__(\'pkg_resources\').require(\'neutron==2013.2.4.dev32\')\n  File
"/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line
3018, in <module>\n    working_set = WorkingSet._build_master()\n  File
"/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line
614, in _build_master\n    return
cls._build_from_requirements(__requires__)\n  File
"/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line
627, in _build_from_requirements\n    dists = ws.resolve(reqs,
Environment())\n  File
"/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line
805, in resolve\n    raise
DistributionNotFound(req)\npkg_resources.DistributionNotFound:
alembic<0.6.4,>=0.4.1\n'
2015-02-04 05:25:06.993 TRACE
neutron.plugins.openvswitch.agent.ovs_neutron_agent
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