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Posted to github@arrow.apache.org by "paleolimbot (via GitHub)" <gi...@apache.org> on 2023/06/17 01:01:51 UTC

[GitHub] [arrow] paleolimbot commented on issue #36121: [R] R hangs when read_csv_arrow after set_io_thread_count(1)

paleolimbot commented on issue #36121:
URL: https://github.com/apache/arrow/issues/36121#issuecomment-1595559221

   This one is my fault 😬 ...we hijack the IO thread pool to make it possible to call into R (e.g., user-defined functions, R connections as input) while doing certain Arrow tasks ( https://github.com/apache/arrow/blob/main/r/src/safe-call-into-r.h#L315 ). I imagine that there is some Arrow code that makes the usually safe assumption that there is at least one available IO thread.


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