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[Matt Kassawara <mkassawara@xxxxxxxxx>]

Public bug reported:

If one or more interfaces in physical_interface_mappings does not exist
for whatever reason, the Linux bridge agent fails badly rather than
providing a useful error message.

2015-07-01 16:51:40.816 22777 CRITICAL neutron [req-2f79bf5b-a0df-40f4-a62a-3eebe17688d2 ] IOError: [Errno 19] No such device
2015-07-01 16:51:40.816 22777 TRACE neutron Traceback (most recent call last):
2015-07-01 16:51:40.816 22777 TRACE neutron   File "/usr/bin/neutron-linuxbridge-agent", line 10, in <module>
2015-07-01 16:51:40.816 22777 TRACE neutron     sys.exit(main())
2015-07-01 16:51:40.816 22777 TRACE neutron   File "/usr/lib/python2.7/dist-packages/neutron/plugins/linuxbridge/agent/linuxbridge_neutron_agent.py", line 1016, in main
2015-07-01 16:51:40.816 22777 TRACE neutron     polling_interval)
2015-07-01 16:51:40.816 22777 TRACE neutron   File "/usr/lib/python2.7/dist-packages/neutron/plugins/linuxbridge/agent/linuxbridge_neutron_agent.py", line 769, in __init__
2015-07-01 16:51:40.816 22777 TRACE neutron     self.setup_rpc(interface_mappings.values())
2015-07-01 16:51:40.816 22777 TRACE neutron   File "/usr/lib/python2.7/dist-packages/neutron/plugins/linuxbridge/agent/linuxbridge_neutron_agent.py", line 783, in setup_rpc
2015-07-01 16:51:40.816 22777 TRACE neutron     mac = utils.get_interface_mac(physical_interfaces[0])
2015-07-01 16:51:40.816 22777 TRACE neutron   File "/usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py", line 152, in get_interface_mac
2015-07-01 16:51:40.816 22777 TRACE neutron     struct.pack('256s', interface[:constants.DEVICE_NAME_MAX_LEN]))
2015-07-01 16:51:40.816 22777 TRACE neutron IOError: [Errno 19] No such device
2015-07-01 16:51:40.816 22777 TRACE neutron

** Affects: neutron
     Importance: Undecided
         Status: New


** Tags: linuxbridge

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https://bugs.launchpad.net/bugs/1470584

Title:
  Linux bridge agent fails badly with physical_interface_mappings issue

Status in OpenStack Neutron (virtual network service):
  New

Bug description:
  If one or more interfaces in physical_interface_mappings does not
  exist for whatever reason, the Linux bridge agent fails badly rather
  than providing a useful error message.

  2015-07-01 16:51:40.816 22777 CRITICAL neutron [req-2f79bf5b-a0df-40f4-a62a-3eebe17688d2 ] IOError: [Errno 19] No such device
  2015-07-01 16:51:40.816 22777 TRACE neutron Traceback (most recent call last):
  2015-07-01 16:51:40.816 22777 TRACE neutron   File "/usr/bin/neutron-linuxbridge-agent", line 10, in <module>
  2015-07-01 16:51:40.816 22777 TRACE neutron     sys.exit(main())
  2015-07-01 16:51:40.816 22777 TRACE neutron   File "/usr/lib/python2.7/dist-packages/neutron/plugins/linuxbridge/agent/linuxbridge_neutron_agent.py", line 1016, in main
  2015-07-01 16:51:40.816 22777 TRACE neutron     polling_interval)
  2015-07-01 16:51:40.816 22777 TRACE neutron   File "/usr/lib/python2.7/dist-packages/neutron/plugins/linuxbridge/agent/linuxbridge_neutron_agent.py", line 769, in __init__
  2015-07-01 16:51:40.816 22777 TRACE neutron     self.setup_rpc(interface_mappings.values())
  2015-07-01 16:51:40.816 22777 TRACE neutron   File "/usr/lib/python2.7/dist-packages/neutron/plugins/linuxbridge/agent/linuxbridge_neutron_agent.py", line 783, in setup_rpc
  2015-07-01 16:51:40.816 22777 TRACE neutron     mac = utils.get_interface_mac(physical_interfaces[0])
  2015-07-01 16:51:40.816 22777 TRACE neutron   File "/usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py", line 152, in get_interface_mac
  2015-07-01 16:51:40.816 22777 TRACE neutron     struct.pack('256s', interface[:constants.DEVICE_NAME_MAX_LEN]))
  2015-07-01 16:51:40.816 22777 TRACE neutron IOError: [Errno 19] No such device
  2015-07-01 16:51:40.816 22777 TRACE neutron

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