Systems libraries missing for event bus use?

[mariajgrimaldi]

Description

I was testing the event bus with the redis implementation by following these instructions: https://github.com/openedx/event-bus-redis/blob/main/docs/tutor_installation.rst, which mention that discovery can be used as consumer of events. When trying to run:

# Run below command and delete any xblock from studio to see the event logs flow in the consumer.
tutor dev run discovery ./manage.py consume_events --topic xblock-deleted --group_id test_group --extra '{"consumer_name": "c1"}'

Discovery didn't do much but raised this warning:

/openedx/venv/lib/python3.12/site-packages/openedx_events/event_bus/__init__.py:64: UserWarning: Failed to load <class 'openedx_events.event_bus.EventBusConsumer'> from setting EVENT_BUS_CONSUMER: ModuleNotFoundError("No module named '_bz2'"); component will be inactive

I've ended up instilling a few system libraries libbz2-dev xz-utils liblzma-dev by adding them manually to the Dockerfile which fixed the error raised while running the consumer. I don't know why these libraries are missing or if there's something wrong with my particular setup.

Version: main (nightly)

[Faraz32123]

Hey @mariajgrimaldi, Thanks for the details.
I have tested it out. The issue does exist for the event-bus testing and I have tested it. We only require these libbz2-dev liblzma-dev dependencies to make it work.

[mariajgrimaldi]

Thank you!