ashb opened a new pull request, #44367:
URL: https://github.com/apache/airflow/pull/44367
The primary drivers of this are simplification, specifically:
1. It avoids global state -- which makes things easier to reason about. For
instance this removes the use of `reload()` in our tests; a sure sign that
things are overly complicated
2. It removes the wierd "mixed" source of truth inside SchedulerJob, where
some places were still looking at `self.job.executors` while others were
looking at ExecutorLoader.load_executor directly
`set_default_executor` was removed as nothing called it.
The comment about "Cache this executor by name here, so we can look it up
later if it is requested again, and not have to construct a new object" is
moot as the SchedulerJob is the only thing that has persistent executor
objects, and `self.job.executors` is already that cache.
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