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[Pawel Koniszewski <pawel.koniszewski@xxxxxxxxx>]

Public bug reported:

Nova fails all live migrations on dedicated interface due to conversion
of string to unicode (in Python 2.7).

My environment:
* nova trunk, commit 40f9b0ad16d3a5fae184bbe6d4a49cf792967089
* QEMU 2.6
* Libvirt 1.3.4

1. Set live_migration_inbound_addr to IP address of existing interface
2. Make sure that live_migration_tunnelled is set to False
3. Restart nova-compute
4. Try to live migrate any instance
5. Outcome:

2016-11-02 12:26:04.272 DEBUG nova.virt.libvirt.driver [req-f3cc94e2-4b45-4236-8d1b-888343ae6885 admin demo] [instance: 09b7c15c-7a5c-4e86-8c27-96d2edc5094c] Migration operation thread notification from (pid=8533) thread_finished /opt/stack/nova/nova/virt/libvirt/driver.py:6325
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 457, in fire_timers
    timer()
  File "/usr/local/lib/python2.7/dist-packages/eventlet/hubs/timer.py", line 58, in __call__
    cb(*args, **kw)
  File "/usr/local/lib/python2.7/dist-packages/eventlet/event.py", line 168, in _do_send
    waiter.switch(result)
  File "/usr/local/lib/python2.7/dist-packages/eventlet/greenthread.py", line 214, in main
    result = function(*args, **kwargs)
  File "/opt/stack/nova/nova/utils.py", line 1066, in context_wrapper
    return func(*args, **kwargs)
  File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 5926, in _live_migration_operation
    instance=instance)
  File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
    self.force_reraise()
  File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
    six.reraise(self.type_, self.value, self.tb)
  File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 5922, in _live_migration_operation
    bandwidth=CONF.libvirt.live_migration_bandwidth)
  File "/opt/stack/nova/nova/virt/libvirt/guest.py", line 571, in migrate
    destination, params=params, flags=flags)
  File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 186, in doit
    result = proxy_call(self._autowrap, f, *args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 144, in proxy_call
    rv = execute(f, *args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 125, in execute
    six.reraise(c, e, tb)
  File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 83, in tworker
    rv = meth(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/libvirt.py", line 1915, in migrateToURI3
    ret = libvirtmod.virDomainMigrateToURI3(self._o, dconnuri, params, flags)
TypeError: Unknown type of "migrate_uri" field

This happens to me everytime when trying to live migrate any VM over
dedicated interface using nova trunk.

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: live-migration

** Tags added: live-migration

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https://bugs.launchpad.net/bugs/1638625

Title:
  Nova fails live migrations on dedicated interface due to wrong type of
  migrate_uri

Status in OpenStack Compute (nova):
  New

Bug description:
  Nova fails all live migrations on dedicated interface due to
  conversion of string to unicode (in Python 2.7).

  My environment:
  * nova trunk, commit 40f9b0ad16d3a5fae184bbe6d4a49cf792967089
  * QEMU 2.6
  * Libvirt 1.3.4

  1. Set live_migration_inbound_addr to IP address of existing interface
  2. Make sure that live_migration_tunnelled is set to False
  3. Restart nova-compute
  4. Try to live migrate any instance
  5. Outcome:

  2016-11-02 12:26:04.272 DEBUG nova.virt.libvirt.driver [req-f3cc94e2-4b45-4236-8d1b-888343ae6885 admin demo] [instance: 09b7c15c-7a5c-4e86-8c27-96d2edc5094c] Migration operation thread notification from (pid=8533) thread_finished /opt/stack/nova/nova/virt/libvirt/driver.py:6325
  Traceback (most recent call last):
    File "/usr/local/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 457, in fire_timers
      timer()
    File "/usr/local/lib/python2.7/dist-packages/eventlet/hubs/timer.py", line 58, in __call__
      cb(*args, **kw)
    File "/usr/local/lib/python2.7/dist-packages/eventlet/event.py", line 168, in _do_send
      waiter.switch(result)
    File "/usr/local/lib/python2.7/dist-packages/eventlet/greenthread.py", line 214, in main
      result = function(*args, **kwargs)
    File "/opt/stack/nova/nova/utils.py", line 1066, in context_wrapper
      return func(*args, **kwargs)
    File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 5926, in _live_migration_operation
      instance=instance)
    File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
      self.force_reraise()
    File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
      six.reraise(self.type_, self.value, self.tb)
    File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 5922, in _live_migration_operation
      bandwidth=CONF.libvirt.live_migration_bandwidth)
    File "/opt/stack/nova/nova/virt/libvirt/guest.py", line 571, in migrate
      destination, params=params, flags=flags)
    File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 186, in doit
      result = proxy_call(self._autowrap, f, *args, **kwargs)
    File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 144, in proxy_call
      rv = execute(f, *args, **kwargs)
    File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 125, in execute
      six.reraise(c, e, tb)
    File "/usr/local/lib/python2.7/dist-packages/eventlet/tpool.py", line 83, in tworker
      rv = meth(*args, **kwargs)
    File "/usr/local/lib/python2.7/dist-packages/libvirt.py", line 1915, in migrateToURI3
      ret = libvirtmod.virDomainMigrateToURI3(self._o, dconnuri, params, flags)
  TypeError: Unknown type of "migrate_uri" field

  This happens to me everytime when trying to live migrate any VM over
  dedicated interface using nova trunk.

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