HyukjinKwon 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-508891339 @brkyvz, this PR targets to fix SPARK-28153. If the suggestions can fix other corner cases I am not aware of commonly, we should fix everywhere else that uses thread local like that, for instance, https://github.com/apache/spark/blob/5264164a67df498b73facae207eda12ee133be7d/sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/continuous/EpochTracker.scala#L26-L31 Currently I am not sure which case it will fix and I would like to avoid to refactor it with a vague concern but without knowing which bugs we fix. Can we target it in a different ticket if this is correct?
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