brkyvz commented on issue #24958: [SPARK-28153][PYTHON] Use AtomicReference at InputFileBlockHolder (to support input_file_name with Python UDF) URL: https://github.com/apache/spark/pull/24958#issuecomment-508871773 @HyukjinKwon I can guarantee you, with this solution we may hit a separate corner case. We should avoid using thread locals (especially inheritable thread locals) as much as possible.
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