@ljanyst - nah, don't use the asynchronous XRootD API from python.
It's very deadlock prone due to lock ordering issues (the same reason it's tough / impossible to use the C++ client asynchronously in a C++ application - too many callbacks occur with different sets of locks held by the framework).
I haven't been able to put together a single application that uses the asynchronous API from python that doesn't have a deadlock.
Only use the multiprocessing module.
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