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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2017/08/03 13:34:00 UTC

[jira] [Created] (ARROW-1327) [Python] Failing to release GIL in MemoryMappedFile._open causes deadlock

Wes McKinney created ARROW-1327:
-----------------------------------

             Summary: [Python] Failing to release GIL in MemoryMappedFile._open causes deadlock
                 Key: ARROW-1327
                 URL: https://issues.apache.org/jira/browse/ARROW-1327
             Project: Apache Arrow
          Issue Type: Bug
          Components: Python
    Affects Versions: 0.5.0
            Reporter: Wes McKinney
            Assignee: Wes McKinney
             Fix For: 0.6.0


This is occurring at

https://github.com/apache/arrow/blob/master/python/pyarrow/io.pxi#L450

This call is missing a {{with nogil:}}, the deadlock is occurring when this function attempts to reacquire the GIL to raise an exception. See discussion in ARROW-1282



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