Description of problem:
2018-05-02 12:12:17,642  ERROR gnocchi.utils: Unable to initialize storage driver
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/tenacity/__init__.py", line 298, in call
result = fn(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/gnocchi/storage/__init__.py", line 117, in get_driver
File "/usr/lib/python2.7/site-packages/gnocchi/storage/ceph.py", line 48, in __init__
self.rados, self.ioctx = ceph.create_rados_connection(conf)
File "/usr/lib/python2.7/site-packages/gnocchi/common/ceph.py", line 70, in create_rados_connection
AttributeError: 'module' object has no attribute 'InvalidArgumentError'
We have two solutions to fix that:
* uninstall and remove python-cradox (python-rados will be used instead)
* update python-cradox to something >= 2.0.0
*** Bug 1588406 has been marked as a duplicate of this bug. ***
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Since the problem described in this bug report should be
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