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[jira] [Created] (ARROW-3241) [Plasma] test_plasma_list test failure on Ubuntu 14.04


Wes McKinney created ARROW-3241:
-----------------------------------

             Summary: [Plasma] test_plasma_list test failure on Ubuntu 14.04
                 Key: ARROW-3241
                 URL: https://issues.apache.org/jira/browse/ARROW-3241
             Project: Apache Arrow
          Issue Type: Bug
          Components: Python
            Reporter: Wes McKinney
             Fix For: 0.11.0


This test fails consistently for me on Ubuntu 14.04 / Python 3.6.5

{code}
pyarrow/tests/test_plasma.py::test_plasma_list FAILED                                                                                                                                   [ 83%]
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> captured stderr >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Allowing the Plasma store to use up to 0.1GB of memory.
Starting object store with directory /dev/shm and huge page support disabled
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> traceback >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

    @pytest.mark.plasma
    def test_plasma_list():
        import pyarrow.plasma as plasma
    
        with plasma.start_plasma_store(
                plasma_store_memory=DEFAULT_PLASMA_STORE_MEMORY) \
                as (plasma_store_name, p):
            plasma_client = plasma.connect(plasma_store_name, "", 0)
    
            # Test sizes
            u, _, _ = create_object(plasma_client, 11, metadata_size=7, seal=False)
            l1 = plasma_client.list()
            assert l1[u]["data_size"] == 11
            assert l1[u]["metadata_size"] == 7
    
            # Test ref_count
            v = plasma_client.put(np.zeros(3))
            l2 = plasma_client.list()
            # Ref count has already been released
            assert l2[v]["ref_count"] == 0
            a = plasma_client.get(v)
            l3 = plasma_client.list()
>           assert l3[v]["ref_count"] == 1
E           assert 0 == 1

pyarrow/tests/test_plasma.py:825: AssertionError
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entering PDB >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> /home/wesm/code/arrow/python/pyarrow/tests/test_plasma.py(825)test_plasma_list()
-> assert l3[v]["ref_count"] == 1

{code}



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