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[Launchpad Bug Tracker <1510415@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/1510415

Title:
  Linuxbridge agent failed to create some bridges after the os was
  rebooted

Status in neutron:
  Expired

Bug description:
  When I rebooted the operation system which hosted the Linuxbridge
  agent ,  Linuxbridge agent will try to recreate all the bridges
  according to the updated tap devices.

  But I have found that some bridge were not created,  and I found the
  weird log message:

  In l3-agent.log:  The tap device seems already created at 2015-10-27
  00:53:15

  2015-10-27 00:53:15.002 5135 DEBUG neutron.agent.linux.utils [-]
  Running command: ['sudo', '/usr/bin/neutron-rootwrap',
  '/etc/neutron/rootwrap.conf', 'ip', 'link', 'add', 'tap5f17438b-6e',
  'type', 'veth', 'peer', 'name', 'qr-5f17438b-6e', 'netns', 'qrouter-
  f3f17112-aadc-4649-9662-6bf25cad569d'] create_process
  /usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py:84

  But in linuxbridge-agent.log:   the linuxbridge agent think the tap
  device was not created yet and give up to create the related bridge at
  2015-10-27 00:53:27

  2015-10-27 00:53:27.774 5088 DEBUG neutron.plugins.linuxbridge.agent.linuxbridge_neutron_agent [req-c156ba1e-aafb-4e4e-ae15-ba9384bb1673 ] Port tap5f17438b-6e added treat_devices_added_updated /usr/lib/python2.7/dist-packages/neutron/plugins/linuxbridge/agent/linuxbridge_neutron_agent.py:865
  2015-10-27 00:53:27.774 5088 INFO neutron.plugins.linuxbridge.agent.linuxbridge_neutron_agent [req-c156ba1e-aafb-4e4e-ae15-ba9384bb1673] Device tap5f17438b-6e not defined on plugin

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