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neutron-linuxbridge-agent Stuck in Loop - RTNETLINK answers: Operation not supported

asked 2016-04-24 17:09:40 -0500

elliotp gravatar image

updated 2016-04-25 12:25:53 -0500

sgordon gravatar image

I've setup a Openstack following the Ubuntu installation guide. It looks like I have a Neutron issue on my compute node. It's stuck at 100% CPU, looping continuously over the following. Judging by the 'RTNETLINK answers: Operation not supported', it's trying to do something to the network interfaces, but can't - something to do with the vxlan. I've tried rebooting the node, and tracing through the code, but I'm not having much luck.

 2016-04-25 00:04:26.613 17806 INFO neutron.common.config [-] Logging enabled!
2016-04-25 00:04:26.614 17806 INFO neutron.common.config [-] /usr/bin/neutron-linuxbridge-agent version 8.0.0
2016-04-25 00:04:26.614 17806 INFO neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Interface mappings: {'provider': 'eth0'}
2016-04-25 00:04:26.615 17806 INFO neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [-] Bridge mappings: {}
2016-04-25 00:04:26.810 17806 ERROR neutron.agent.linux.utils [-] Exit code: 2; Stdin: ; Stdout: ; Stderr: RTNETLINK answers: Operation not supported

2016-04-25 00:04:26.828 17806 CRITICAL neutron [-] RuntimeError: Exit code: 2; Stdin: ; Stdout: ; Stderr: RTNETLINK answers: Operation not supported

2016-04-25 00:04:26.828 17806 ERROR neutron Traceback (most recent call last):
2016-04-25 00:04:26.828 17806 ERROR neutron   File "/usr/bin/neutron-linuxbridge-agent", line 10, in <module>
2016-04-25 00:04:26.828 17806 ERROR neutron     sys.exit(main())
2016-04-25 00:04:26.828 17806 ERROR neutron   File "/usr/lib/python2.7/dist-packages/neutron/cmd/eventlet/plugins/linuxbridge_neutron_agent.py", line 21, in main
2016-04-25 00:04:26.828 17806 ERROR neutron     agent_main.main()
2016-04-25 00:04:26.828 17806 ERROR neutron   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/drivers/linuxbridge/agent/linuxbridge_neutron_agent.py", line 888, in main
2016-04-25 00:04:26.828 17806 ERROR neutron     manager = LinuxBridgeManager(bridge_mappings, interface_mappings)
2016-04-25 00:04:26.828 17806 ERROR neutron   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/drivers/linuxbridge/agent/linuxbridge_neutron_agent.py", line 76, in __init__
2016-04-25 00:04:26.828 17806 ERROR neutron     self.check_vxlan_support()
2016-04-25 00:04:26.828 17806 ERROR neutron   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/drivers/linuxbridge/agent/linuxbridge_neutron_agent.py", line 618, in check_vxlan_support
2016-04-25 00:04:26.828 17806 ERROR neutron     if self.vxlan_ucast_supported():
2016-04-25 00:04:26.828 17806 ERROR neutron   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/drivers/linuxbridge/agent/linuxbridge_neutron_agent.py", line 581, in vxlan_ucast_supported
2016-04-25 00:04:26.828 17806 ERROR neutron     test_iface = self.ensure_vxlan(seg_id)
2016-04-25 00:04:26.828 17806 ERROR neutron   File "/usr/lib/python2.7/dist-packages/neutron/plugins/ml2/drivers/linuxbridge/agent/linuxbridge_neutron_agent.py", line 286, in ensure_vxlan
2016-04-25 00:04:26.828 17806 ERROR neutron     return None
2016-04-25 00:04:26.828 17806 ERROR neutron   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2016-04-25 00:04:26.828 17806 ERROR neutron     self.force_reraise()
2016-04-25 00:04:26.828 17806 ERROR neutron   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
2016-04-25 00:04:26.828 17806 ...
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answered 2016-04-25 10:38:26 -0500

elliotp gravatar image

Problem was due to lack of vxlan support in kernel. Switched to generic ubuntu kernel and issue has resolved.

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Asked: 2016-04-24 17:09:40 -0500

Seen: 1,066 times

Last updated: Apr 25 '16