def get_freed_nodes(iteration):
    try:
        condense_data = json.loads(
            data_storage.get(get_key(iteration, 'source')))
        return condense_data.get(TRANSFER, [])
    except (__HOLE__, ValueError):
        LOG.error("Something went wrong while retrieving freed nodes from DB, "
                  "check iteration value passed")
dataset/ETHPy150Open MirantisWorkloadMobility/CloudFerry/cloudferry/condensation/action.py/get_freed_nodes