Issues with workflows when on DocumentDB

[fdrab]

Anyone out there using ST2 with DocumentDB instead of MongoDB?

I'm having this issue:

2024-07-19 06:50:55,499 ERROR [-] QueueConsumer failed to process message: LiveActionDB(action="packs.install", action_is_workflow=True, callback={}, context={'trace_context': {}, 'user': 'fdrab', 'pack': 'packs', 'rbac': {'user': 'fdrab', 'roles': ['admin']}}, delay=None, end_timestamp=None, id=669a0ccf530806f286aa8fa2, notify=None, parameters={'packs': ['st2'], 'register': 'all'}, result={}, runner_info={}, start_timestamp="2024-07-19 06:50:55.404581+00:00", status="requested", task_execution=None, workflow_execution=None)
Traceback (most recent call last):
  File "/opt/stackstorm/st2/lib/python3.8/site-packages/st2common/transport/consumers.py", line 78, in _process_message
    self._handler.process(body)
  File "/opt/stackstorm/st2/lib/python3.8/site-packages/st2actions/scheduler/entrypoint.py", line 90, in process
    ActionExecutionSchedulingQueue.add_or_update(
  File "/opt/stackstorm/st2/lib/python3.8/site-packages/st2common/persistence/base.py", line 185, in add_or_update
    model_object = cls._get_impl().add_or_update(model_object, validate=True)
  File "/opt/stackstorm/st2/lib/python3.8/site-packages/st2common/models/db/__init__.py", line 723, in add_or_update
    return self.save(instance, validate=validate)
  File "/opt/stackstorm/st2/lib/python3.8/site-packages/st2common/models/db/__init__.py", line 733, in save
    return self.insert(instance)
  File "/opt/stackstorm/st2/lib/python3.8/site-packages/st2common/models/db/__init__.py", line 720, in insert
    return self._undo_dict_field_escape(instance)
  File "/opt/stackstorm/st2/lib/python3.8/site-packages/st2common/models/db/__init__.py", line 626, in _undo_dict_field_escape
    for attr, field in six.iteritems(instance._fields):
AttributeError: 'NoneType' object has no attribute '_fields'

Action execution works fine, Orquesta workflows always fail. I'm running on AWS EKS with DocumentDB 4.0 as DB.

[nzlosh]

DocumentDB isn't tested against StackStorm or officially supported. It is not an equivalent mongo replacement. https://docs.aws.amazon.com/documentdb/latest/developerguide/compatibility.html#mongodb-40

[fdrab]

roger, thanks