Failed to get the resource <Volume: 625ad644-ac08-4f93-991c-4a4628555b31>: unsupported operand type(s) for +: 'NoneType' and 'unicode'

[Alexander Nevenchannyy]

Full trace of error available at: http://paste.openstack.org/show/197538/

This is 11 enviroment scale lab. Was caught while full Rally testing in cinder-related test cases.

This is looks like reauthenticating problem in cinder client.

[Alexander Nevenchannyy (anevenchannyy)]

Problem was in create-from-volume-and-delete-volume Rally scenario repeated 3 times in test.
Cinder use ceph as backend.

[Alexander Nevenchannyy (anevenchannyy)]

api: '1.0'
astute_sha: ed76b0cacf34a4a683b464ebd86e0beb273b5473
auth_required: true
build_id: 2015-03-12_22-54-44
build_number: '192'
feature_groups:
- mirantis
fuellib_sha: fda8128b9ca7a8ce818421040f597a50eece8078
fuelmain_sha: 3764b8a73b3a93fd7ee66937ba4c4c77da409b78
nailgun_sha: c186f71158ed27b03d8db87561ea66c19e39b452
ostf_sha: ecb8e294b0acbdc5b0300d5e39028fb26ecc9088
production: docker
python-fuelclient_sha: 59513d6b75f86060ff5059f39fdd9cca56c83f19
release: '6.1'
release_versions:
  2014.2-6.1:
    VERSION:
      api: '1.0'
      astute_sha: ed76b0cacf34a4a683b464ebd86e0beb273b5473
      build_id: 2015-03-12_22-54-44
      build_number: '192'
      feature_groups:
      - mirantis
      fuellib_sha: fda8128b9ca7a8ce818421040f597a50eece8078
      fuelmain_sha: 3764b8a73b3a93fd7ee66937ba4c4c77da409b78
      nailgun_sha: c186f71158ed27b03d8db87561ea66c19e39b452
      ostf_sha: ecb8e294b0acbdc5b0300d5e39028fb26ecc9088
      production: docker
      python-fuelclient_sha: 59513d6b75f86060ff5059f39fdd9cca56c83f19
      release: '6.1'

[Ivan Kolodyazhny (e0ne)]

Can't reproduce with ISO:
VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "6.1"
  api: "1.0"
  build_number: "282"
  build_id: "2015-04-06_08-49-30"
  nailgun_sha: "a2dc04af9c5838a990adeab81789d4c090943701"
  python-fuelclient_sha: "9ad42671130deb2cc81135fb453ef0793883be2c"
  astute_sha: "240bfefe0a0b5af21b79854d0c96d8a3ee0fd885"
  fuellib_sha: "601cc8e1dccbdcf328f83f071270609e824d6c5a"
  ostf_sha: "b978badb43243d3f1b85dde15b8e301a21f12254"
  fuelmain_sha: "f90d7d40ceff39ee6d7587b183c63bd00ed0743f"

[Alexander Nevenchannyy (anevenchannyy)]

Root case of problem was mysqld crash.