Michael-cd30 commented on issue #14813:
URL: https://github.com/apache/airflow/issues/14813#issuecomment-1951946474
> > You can instead write your own "run" function and send output to
logger.getLogger("airflow.task").
> > I've written this one to meet my needs.
> > `...`
>
> This will deadlock if stderr produces enough output to fill the buffer.
See warning under
https://docs.python.org/3/library/subprocess.html#subprocess.Popen.stderr This
is why `POpen.communicate()` exists. For streaming output, the easiest is to
merge the two streams into one using `stderr=subprocess.STDOUT`, then it is
safe to `read()` stdout incrementally.
>
> If you really care about streaming both streams individually, the solution
becomes incredibly complex using `select` and other more low level primitives.
Thanks for this advice, I'll look carefully.
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