def _check_cloudera_manager_started(self, manager):
        try:
            conn = telnetlib.Telnet(manager.management_ip, CM_API_PORT)
            conn.close()
            return True
        except __HOLE__:
            return False
dataset/ETHPy150Open openstack/sahara/sahara/plugins/cdh/plugin_utils.py/AbstractPluginUtils._check_cloudera_manager_started