[jira] [Created] (ARROW-9353) [Python][CI] Nightly dask integration jobs fail

["Neal Richardson (Jira)" <ji...@apache.org>]

Neal Richardson created ARROW-9353:
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             Summary: [Python][CI] Nightly dask integration jobs fail
                 Key: ARROW-9353
                 URL: https://issues.apache.org/jira/browse/ARROW-9353
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++
            Reporter: Neal Richardson
             Fix For: 1.0.0


On dask latest:

{code}
=================================== FAILURES ===================================
___________________________ test_dataframe_picklable ___________________________

    def test_dataframe_picklable():
        from pickle import loads, dumps
    
        cloudpickle = pytest.importorskip("cloudpickle")
        cp_dumps = cloudpickle.dumps
    
        d = _compat.makeTimeDataFrame()
        df = dd.from_pandas(d, npartitions=3)
        df = df + 2
    
        # dataframe
        df2 = loads(dumps(df))
        assert_eq(df, df2)
>       df2 = loads(cp_dumps(df))
E       ValueError: unsupported pickle protocol: 5

opt/conda/envs/arrow/lib/python3.7/site-packages/dask/dataframe/tests/test_dataframe.py:1623: ValueError
{code}

https://github.com/ursa-labs/crossbow/runs/844367735


Dask master has many more failures: https://github.com/ursa-labs/crossbow/runs/844351816



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