./tpcc.py --config mconfig --warehouses 100 --no-load mongodb
2020-06-08 14:44:53,679 [<module>:245] INFO : Initializing TPC-C benchmark using MongodbDriver
2020-06-08 14:45:53,681 [<module>:282] INFO : Final Results
2020-06-08 14:45:53,681 [<module>:283] INFO : Threads: 1
{'DELIVERY': 317, 'ORDER_STATUS': 353, 'STOCK_LEVEL': 349, 'PAYMENT': 3581, 'NEW_ORDER': 3751}
Traceback (most recent call last):
 File "./tpcc.py", line 284, in <module>
 logging.info(results.show(load_time, driver, args['clients']))
 File "/home/vadim/scripts/py-tpcc/pytpcc/util/results.py", line 251, in show
 driver.save_result(result_doc)
 File "/home/vadim/scripts/py-tpcc/pytpcc/drivers/mongodbdriver.py", line 1146, in save_result
 self.client.test.results.save(self.result_doc)
 File "/usr/local/lib/python2.7/dist-packages/pymongo/collection.py", line 3158, in save
 to_save, True, check_keys, manipulate, write_concern)
 File "/usr/local/lib/python2.7/dist-packages/pymongo/collection.py", line 612, in _insert
 bypass_doc_val, session)
 File "/usr/local/lib/python2.7/dist-packages/pymongo/collection.py", line 600, in _insert_one
 acknowledged, _insert_command, session)
 File "/usr/local/lib/python2.7/dist-packages/pymongo/mongo_client.py", line 1491, in _retryable_write
 return self._retry_with_session(retryable, func, s, None)
 File "/usr/local/lib/python2.7/dist-packages/pymongo/mongo_client.py", line 1384, in _retry_with_session
 return func(session, sock_info, retryable)
 File "/usr/local/lib/python2.7/dist-packages/pymongo/collection.py", line 595, in _insert_command
 retryable_write=retryable_write)
 File "/usr/local/lib/python2.7/dist-packages/pymongo/pool.py", line 618, in command
 self._raise_connection_failure(error)
 File "/usr/local/lib/python2.7/dist-packages/pymongo/pool.py", line 613, in command
 user_fields=user_fields)
 File "/usr/local/lib/python2.7/dist-packages/pymongo/network.py", line 129, in command
 codec_options, ctx=compression_ctx)
 File "/usr/local/lib/python2.7/dist-packages/pymongo/message.py", line 707, in _op_msg
 flags, command, identifier, docs, check_keys, opts)
bson.errors.InvalidDocument: key '$_internalSplitPipeline' must not start with '$'