[Bug 1518016] Re: [SRU] Nova kilo requires concurrency 1.8.2 or better

[James Page]

@Mohammed

The backport to trusty-kilo will happen automatically as soon as the
backport process detects that they new versions are available.

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https://bugs.launchpad.net/bugs/1518016

Title:
  [SRU] Nova kilo requires concurrency 1.8.2 or better

Status in Ubuntu Cloud Archive:
  In Progress
Status in Ubuntu Cloud Archive kilo series:
  In Progress
Status in OpenStack Compute (nova):
  Invalid
Status in nova package in Ubuntu:
  Invalid
Status in python-oslo.concurrency package in Ubuntu:
  Invalid
Status in nova source package in Vivid:
  Fix Committed
Status in python-oslo.concurrency source package in Vivid:
  Fix Committed

Bug description:
  [Impact]
  Some operations on instances will fail due to missing functions in oslo-concurrency 1.8.0 that the latest Nova stable release requires.

  [Test Case]
  Resize or migrate an instance on the latest stable kilo updates

  [Regression Potential]
  Minimal - this is recommended and tested upstream already.

  [Original Bug Report]
  OpenStack Nova Kilo release requires 1.8.2 or higher, this is due to the addition of on_execute and on_completion to the execute(..) function.  The latest Ubuntu OpenStack Kilo packages currently have code that depend on this new updated release.  This results in a crash in some operations like resizes or migrations.

  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24] Traceback (most recent call last):
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 6459, in _error_out_instance_on_exception
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]     yield
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 4054, in resize_instance
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]     timeout, retry_interval)
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 6353, in migrate_disk_and_power_off
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]     shared_storage)
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]   File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 85, in __exit__
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]     six.reraise(self.type_, self.value, self.tb)
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 6342, in migrate_disk_and_power_off
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]     on_completion=on_completion)
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/utils.py", line 329, in copy_image
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]     on_execute=on_execute, on_completion=on_completion)
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/utils.py", line 55, in execute
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]     return utils.execute(*args, **kwargs)
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]   File "/usr/lib/python2.7/dist-packages/nova/utils.py", line 207, in execute
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]     return processutils.execute(*cmd, **kwargs)
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]   File "/usr/lib/python2.7/dist-packages/oslo_concurrency/processutils.py", line 174, in execute
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]     raise UnknownArgumentError(_('Got unknown keyword args: %r') % kwargs)
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24] UnknownArgumentError: Got unknown keyword args: {'on_execute': <function <lambda> at 0x7f3a64527050>, 'on_completion': <function <lambda> at 0x7f39ff6ddf50>}
  2015-11-19 16:26:24.103 7779 TRACE nova.compute.manager [instance: c04c1cf3-fbd9-40fd-be2e-e7dc06eb9f24]

  https://github.com/openstack/requirements/commit/2fd00d00db5fce57d9589643801942d0332b1670

  This commit above shows that OpenStack now requires 1.8.2 instead of
  1.8.0.  We would appreciate if the 1.8.2 upstream release can be
  brought in to resolve this bug.

  Thank you.

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