13:31:47   # add_hosts: 
13:31:47 Error while running thread
13:31:47 Traceback (most recent call last):
13:31:47   File "/usr/lib/python2.7/site-packages/lago/utils.py", line 58, in _ret_via_queue
13:31:47     queue.put({'return': func()})
13:31:47   File "/home/jenkins/workspace/ovirt-system-tests_manual/ovirt-system-tests/basic-suite-4.1/test-scenarios/002_bootstrap.py", line 320, in _add_host_4
13:31:47     name=CLUSTER_NAME,
13:31:47   File "/usr/lib64/python2.7/site-packages/ovirtsdk4/services.py", line 8726, in add
13:31:47     return self._internal_add(host, headers, query, wait)
13:31:47   File "/usr/lib64/python2.7/site-packages/ovirtsdk4/service.py", line 211, in _internal_add
13:31:47     context = self._connection.send(request)
13:31:47   File "/usr/lib64/python2.7/site-packages/ovirtsdk4/__init__.py", line 300, in send
13:31:47     sys.exc_info()[2]
13:31:47   File "/usr/lib64/python2.7/site-packages/ovirtsdk4/__init__.py", line 295, in send
13:31:47     return self.__send(request)
13:31:47   File "/usr/lib64/python2.7/site-packages/ovirtsdk4/__init__.py", line 413, in __send
13:31:47     self._multi.add_handle(curl)
13:31:47 Error: ('Error while sending HTTP request', error('cannot add/remove handle - multi_perform() already running',))