def shutdown(self):
        if self.cluster is not None:
            self.cluster.shutdown()
            self.cluster = None


# Cluster allocation requires ssh configuration and multiple hosts.
Check permissions required to access Basic Settings panel.
dataset/ETHPy150Open OpenMDAO/OpenMDAO-Framework/openmdao.main/src/openmdao/main/resource.py/ClusterAllocator.shutdown--crossover with--dataset/ETHPy150Open edgewall/trac/trac/admin/tests/functional.py/TestBasicSettingsAuthorization.runTest