def sync_instances(self, ctxt, project_id, updated_since, deleted):
        method_kwargs = dict(project_id=project_id,
                             updated_since=updated_since,
                             deleted=deleted)
        message = _BroadcastMessage(self, ctxt, 'sync_instances',
                                    method_kwargs, 'down',
                                    run_locally=False)
        message.process()
Close the existing socket connection
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/cells/messaging.py/MessageRunner.sync_instances--crossover with--dataset/ETHPy150Open gmr/rabbitpy/rabbitpy/io.py/IO._disconnect_socket