Problem with optimal_positions when updating PST

[oldlore]

I've been trying to upgrade a test machine from a PST build 2 months old to the current master branch and I've been running into some trouble.
Initially I was getting an error with arctic optimal_positions with various scripts such as run_systems. Presumably due to: Issue #754

Traceback (most recent call last):
  File "/home/pysystemtrade/sysproduction/linux/scripts/run.py", line 67, in <module>
    func(*args, **kwargs)
  File "/home/pysystemtrade/sysproduction/run_systems.py", line 22, in run_systems
    system_process.run_process()
  File "/home/pysystemtrade/syscontrol/run_process.py", line 103, in run_process
    self._main_loop_over_methods()
  File "/home/pysystemtrade/syscontrol/run_process.py", line 129, in _main_loop_over_methods
    timer_class.check_and_run(**kwargs)
  File "/home/pysystemtrade/syscontrol/timer_functions.py", line 124, in check_and_run
    self.run_function(**kwargs)
  File "/home/pysystemtrade/syscontrol/timer_functions.py", line 299, in run_function
    self._function(**kwargs)
  File "/home/pysystemtrade/sysproduction/run_systems.py", line 26, in backtest_function_to_be_renamed
    self.run_strategy_method()
  File "/home/pysystemtrade/syscontrol/strategy_tools.py", line 41, in run_strategy_method
    method()
  File "/home/pysystemtrade/sysproduction/strategy_code/run_system_classic.py", line 65, in run_backtest
    function_to_call_on_update(
  File "/home/pysystemtrade/sysproduction/strategy_code/run_dynamic_optimised_system.py", line 122, in updated_optimal_positions_for_dynamic_system
    data_optimal_positions = dataOptimalPositions(data)
  File "/home/pysystemtrade/sysproduction/data/generic_production_data.py", line 11, in __init__
    data = self._add_required_classes_to_data(data)
  File "/home/pysystemtrade/sysproduction/data/optimal_positions.py", line 21, in _add_required_classes_to_data
    data.add_class_object(arcticOptimalPositionData)
  File "/home/pysystemtrade/sysdata/data_blob.py", line 89, in add_class_object
    resolved_instance = self._get_resolved_instance_of_class(class_object)
  File "/home/pysystemtrade/sysdata/data_blob.py", line 94, in _get_resolved_instance_of_class
    resolved_instance = class_adding_method(class_object)
  File "/home/pysystemtrade/sysdata/data_blob.py", line 166, in _add_arctic_class
    self._raise_and_log_error(msg)
  File "/home/pysystemtrade/sysdata/data_blob.py", line 328, in _raise_and_log_error
    raise Exception(error_msg)
Exception: Error Library production.optimal_positions was not correctly initialized in <Arctic at 0x7f0e340496a0, connected to MongoClient(host=['localhost:27017'], document_class=dict, tz_aware=False, connect=True, maxpoolsize=4, sockettimeoutms=600000, connecttimeoutms=2000, serverselectiontimeoutms=30000)>. couldn't evaluate arcticOptimalPositionData(mongo_db=self.mongo_db, log = self.log.setup(component = arcticOptimalPositionData))                         This might be because import is missing                         or arguments don't follow pattern

I erased the optimal positions collection and run_systems ran successfully. However, the system appears to be unable to read my current positions in the DB (i.e. Positions DB is empty) so when I run strategy order generator it generates completely new positions without taking into account my current positions (i.e. no buffering).

What am I doing wrong?

Thanks!

[tgibson11]

See #1075

You need to run the script linked in that announcement

[oldlore]

Thanks! I can’t believe I didn’t see that. Would've saved myself a couple of hours of frustration. I think I was looking at a related discussion about the issue without that script link.

Edit: I ran the script and that specific problem is fixed. I hope it's the last one! Thanks again!