largecolumn_test.py - configure native_transport_max_request_data_in_…

…flight and native_transport_max_request_data_in_flight_per_ip for 4.1 and later

Patch by Dmitry Konstantinov; reviewed by brandonwilliams and
smiklosovic for CASSANDRA-19702

largecolumn_test.py

@@ -48,6 +48,9 @@ def test_cleanup(self):
         configuration = {'commitlog_segment_size_in_mb': 128, 'internode_compression': 'none'}
         if cluster.version() >= '4.0':
             configuration['internode_max_message_size_in_bytes'] = 128 * 1024 * 1024
+        if cluster.version() >= '4.1':
+            configuration['native_transport_max_request_data_in_flight'] = '64MiB'
+            configuration['native_transport_max_request_data_in_flight_per_ip'] = '64MiB'
         cluster.set_configuration_options(configuration)
 
         # Have Netty allocate memory on heap so it is clear if memory used for large columns is related to intracluster messaging