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[jira] [Created] (ARROW-4120) [Python] Define process for testing procedures that check for no macro-level memory leaks


Wes McKinney created ARROW-4120:
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             Summary: [Python] Define process for testing procedures that check for no macro-level memory leaks
                 Key: ARROW-4120
                 URL: https://issues.apache.org/jira/browse/ARROW-4120
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Python
            Reporter: Wes McKinney
             Fix For: 0.13.0


Some kinds of memory leaks may be difficult to unit test for, and they may not cause valgrind errors necessarily

I had written some ad hoc leak tests in https://github.com/apache/arrow/blob/master/python/scripts/test_leak.py. We have some more of this in ARROW-3324. 

It would be useful to be able to create a sort of "test suite" of memory leak checks. They are a bit too intensive to run in CI (since you may have to run something many iterations to see whether it leaks), but we could run them in a nightly build



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