======================================================================
ERROR: test_cert_ssl_validation_optional (test.test_ssl.TestSSL)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "test/test_ssl.py", line 318, in test_cert_ssl_validation_optional
    db.test.drop()
  File "pymongo/collection.py", line 493, in drop
    self.__database.drop_collection(self.__name)
  File "pymongo/database.py", line 422, in drop_collection
    self.command("drop", unicode(name), allowable_errors=["ns not found"])
  File "pymongo/database.py", line 386, in command
    result = self["$cmd"].find_one(command, **extra_opts)
  File "pymongo/collection.py", line 598, in find_one
    for result in self.find(spec_or_id, *args, **kwargs).limit(-1):
  File "pymongo/cursor.py", line 814, in next
    if len(self.__data) or self._refresh():
  File "pymongo/cursor.py", line 763, in _refresh
    self.__uuid_subtype))
  File "pymongo/cursor.py", line 700, in __send_message
    **kwargs)
  File "pymongo/mongo_replica_set_client.py", line 1312, in _send_message_with_response
    raise AutoReconnect(msg, errors)
AutoReconnect: No replica set primary available for query with ReadPreference PRIMARY