This recreates with Junien's testcase + eventlet.monkey_patch():
ubuntu@juju-b1ca57-coreycb2-19:~$ python3
Python 3.6.7 (default, Oct 22 2018, 11:32:17)
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import eventlet
>>> eventlet.monkey_patch()
>>> from oslo_cache import _memcache_pool
>>> a=_memcache_pool.MemcacheClientPool(urls="foo", arguments={}, maxsize=10,
>>> unused_timeout=10)
>>> a._create_connection()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3/dist-packages/oslo_cache/_memcache_pool.py", line 214,
in _create_connection
return _MemcacheClient(self.urls, **self._arguments)
TypeError: object() takes no parameters
And the base classes correspond to the nova-api-os-compute failure case:
inspect.getmro(_MemcacheClient)=(<class
'oslo_cache._memcache_pool._MemcacheClient'>, <class 'memcache.Client'>, <class
'eventlet.corolocal.local'>, <class 'eventlet.corolocal._localbase'>, <class
'object'>)
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https://bugs.launchpad.net/bugs/1812672
Title:
impossible to create nova instances after upgrading to rocky
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