Open Stack

Hi All,
  I am hitting a strange issue when running Cinder unit tests against my
patch @
https://review.openstack.org/#/c/172808/5

I have spent 1 day and haven't been successfull at figuring how/why my
patch is causing it!

All tests failing are part of VolumeTestCase suite and from the error (see
below) it seems
the Snapshot Object is complaining that 'volume_id' field is null (while it
shouldn't be)

An example error from the associated Jenkins run can be seen @
http://logs.openstack.org/08/172808/5/check/gate-cinder-python27/0abd15e/console.html.gz#_2015-05-22_13_28_47_140

I am seeing a total of 21 such errors.

Its strange because, when I try to reproduce it locally in my devstack env,
I see the below:

1) When i just run: ./run_tests.sh -N
cinder.tests.unit.test_volume.VolumeTestCase
all testcases pass

2) When i run 1 individual testcase: ./run_tests.sh -N
cinder.tests.unit.test_volume.VolumeTestCase.test_delete_busy_snapshot
that passes too

3) When i run : ./run_tests.sh -N
I see 21 tests failing and all are failing with error similar to the below

{0} cinder.tests.unit.test_volume.VolumeTestCase.test_delete_busy_snapshot
[0.537366s] ... FAILED

Captured traceback:
~~~~~~~~~~~~~~~~~~~
    Traceback (most recent call last):
      File "cinder/tests/unit/test_volume.py", line 3219, in
test_delete_busy_snapshot
        snapshot_obj = objects.Snapshot.get_by_id(self.context, snapshot_id)
      File
"/usr/lib/python2.7/site-packages/oslo_versionedobjects/base.py", line 163,
in wrapper
        result = fn(cls, context, *args, **kwargs)
      File "cinder/objects/snapshot.py", line 130, in get_by_id
        expected_attrs=['metadata'])
      File "cinder/objects/snapshot.py", line 112, in _from_db_object
        snapshot[name] = value
      File
"/usr/lib/python2.7/site-packages/oslo_versionedobjects/base.py", line 675,
in __setitem__
        setattr(self, name, value)
      File
"/usr/lib/python2.7/site-packages/oslo_versionedobjects/base.py", line 70,
in setter
        field_value = field.coerce(self, name, value)
      File
"/usr/lib/python2.7/site-packages/oslo_versionedobjects/fields.py", line
182, in coerce
        return self._null(obj, attr)
      File
"/usr/lib/python2.7/site-packages/oslo_versionedobjects/fields.py", line
160, in _null
        raise ValueError(_("Field `%s' cannot be None") % attr)
    ValueError: Field `volume_id' cannot be None

Any suggestions / thoughts on why this could be happening ?

thanx,
deepak
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