potiuk opened a new pull request, #32694:
URL: https://github.com/apache/airflow/pull/32694
ProvidersManager might get accidentally initialized during CLI argument
parsing, and if it does, then CLI and arg completion takes huge performance hit
- it takes seconds to intialize ProvidersManager when you have many providers
packages installed, so initializing ProvidersManager should not happen just
when you parse arguments of the CLIs but only when you execute commands.
It's rather easy to trigger ProvidersManager by just importing some package
(especially as we move executors to providers).
This PR adds a new CLI command in providers to check status of
initialization - this command will fail when provider's initlalization is
executed during CLI parsing. It will also show the stack trace of where
ProvidersManager has been initialized from.
Test is added to detect such situation by running the new command in a
separate subprocess, thus making sure ProvidersManager has not been initialized
in another test.
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