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[Launchpad Bug Tracker <1523616@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/1523616

Title:
  Failing to bind a port should report why it failed, even outside of
  DEBUG level

Status in neutron:
  Expired

Bug description:
  Some useful information about *why* a port binding failed should be
  pushed up into ERROR level, since it has a useful error to help
  diagnose the issue, and if someone doesn't have DEBUG level enabled
  they'd miss it and wonder why it failed.

  2015-12-07 17:41:00.584 DEBUG neutron.plugins.ml2.drivers.mech_agent [req-4cade4e6-1586-4187-8af2-f9e57051a5bc None None] Checking segment: {'segmentation_id': None, 'physical_network': u'default', 'id': u'eec249a0-829d-4a8c-a556-d04ffe7533ad', 'network_type': u'flat'} for mappings: {} with network types: [u'vxlan', 'local', 'flat', 'vlan'] from (pid=13302) check_segment_for_agent /opt/stack/neutron/neutron/plugins/ml2/drivers/mech_agent.py:182
  2015-12-07 17:41:00.584 DEBUG neutron.plugins.ml2.drivers.mech_agent [req-4cade4e6-1586-4187-8af2-f9e57051a5bc None None] Network eec249a0-829d-4a8c-a556-d04ffe7533ad is connected to physical network default, but agent vagrant-ubuntu-trusty-64.localdomain reported physical networks {}. The physical network must be configured on the agent if binding is to succeed. from (pid=13302) check_segment_for_agent /opt/stack/neutron/neutron/plugins/ml2/drivers/mech_agent.py:208
  2015-12-07 17:41:00.585 ERROR neutron.plugins.ml2.managers [req-4cade4e6-1586-4187-8af2-f9e57051a5bc None None] Failed to bind port 0e25c56e-2bcf-4079-bf6c-c28b72ab4ac0 on host vagrant-ubuntu-trusty-64.localdomain
  2015-12-07 17:41:00.585 ERROR neutron.plugins.ml2.managers [req-4cade4e6-1586-4187-8af2-f9e57051a5bc None None] Failed to bind port 0e25c56e-2bcf-4079-bf6c-c28b72ab4ac0 on host vagrant-ubuntu-trusty-64.localdomain

  
  If someone didn't have verbosity set at debug level, all they'd see is:

  2015-12-07 17:41:00.585 ERROR neutron.plugins.ml2.managers [req-
  4cade4e6-1586-4187-8af2-f9e57051a5bc None None] Failed to bind port
  0e25c56e-2bcf-4079-bf6c-c28b72ab4ac0 on host vagrant-ubuntu-
  trusty-64.localdomain

  Which would tell them that yeah their port creation failed, but no
  reason why.

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