[ 
https://issues.apache.org/jira/browse/ARROW-1880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16345903#comment-16345903
 ] 

Wes McKinney commented on ARROW-1880:
-------------------------------------

I was able to get this error locally

{code}
$ py.test pyarrow/tests/test_plasma.py --pdb -v
==================================================== test session starts 
=====================================================
platform linux -- Python 3.5.2, pytest-3.0.6, py-1.4.31, pluggy-0.4.0 -- 
/home/wesm/anaconda3/envs/arrow-test/bin/python
cachedir: .cache
rootdir: /home/wesm/code/arrow/python, inifile: setup.cfg
collected 20 items 

pyarrow/tests/test_plasma.py::TestPlasmaClient::test_connection_failure_raises_exception
 PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_create PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_create_with_metadata PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_create_existing PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_get PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_put_and_get PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_put_and_get_serialization_context
 PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_store_arrow_objects PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_store_pandas_dataframe 
PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_pickle_object_ids PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_store_full PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_contains PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_hash PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_many_hashes PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_illegal_functionality 
PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_evict PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_subscribe PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_subscribe_deletions PASSED
pyarrow/tests/test_plasma.py::TestPlasmaClient::test_use_one_memory_mapped_file 
ERROR
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> traceback 
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

self = <pyarrow.tests.test_plasma.TestPlasmaClient object at 0x7f7763c66400>
test_method = <bound method TestPlasmaClient.test_use_one_memory_mapped_file of 
<pyarrow.tests.test_plasma.TestPlasmaClient object at 0x7f7763c66400>>

    def setup_method(self, test_method):
        use_one_memory_mapped_file = (test_method ==
                                      self.test_use_one_memory_mapped_file)
    
        import pyarrow.plasma as plasma
        # Start Plasma store.
        plasma_store_name, self.p = start_plasma_store(
            use_valgrind=os.getenv("PLASMA_VALGRIND") == "1",
            use_one_memory_mapped_file=use_one_memory_mapped_file)
        # Connect to Plasma.
>       self.plasma_client = plasma.connect(plasma_store_name, "", 64)

pyarrow/tests/test_plasma.py:166: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
pyarrow/plasma.pyx:678: in pyarrow.plasma.connect 
(/home/wesm/code/arrow/python/build/temp.linux-x86_64-3.5/plasma.cxx:8311)
    check_status(result.client.get()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

>   raise ArrowIOError(message)
E   pyarrow.lib.ArrowIOError: ../src/plasma/client.cc:600 code: 
ConnectIpcSocketRetry(store_socket_name, num_retries, -1, &store_conn_)
E   Could not connect to socket /tmp/plasma_store42362948

pyarrow/error.pxi:79: ArrowIOError
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> entering PDB 
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> /home/wesm/code/arrow/python/pyarrow/error.pxi(79)pyarrow.lib.check_status 
> (/home/wesm/code/arrow/python/build/temp.linux-x86_64-3.5/lib.cxx:8373)()
-> raise ArrowIOError(message)
(Pdb) 
{code}

Starting the Plasma store fails with

{code}
(Pdb) plasma_store_name, self.p = 
start_plasma_store(use_valgrind=os.getenv("PLASMA_VALGRIND") == 
"1",use_one_memory_mapped_file=use_one_memory_mapped_file)
Allowing the Plasma store to use up to 0.536871GB of memory.
Starting object store with directory /dev/shm and huge page support disabled
../src/plasma/store.cc:744 Check failed: pointer != NULL
{code}

This happened when I tried reducing the amount of memory available to the 
Plasma store by default in 512MB 

> [Python] Plasma test flakiness in Travis CI
> -------------------------------------------
>
>                 Key: ARROW-1880
>                 URL: https://issues.apache.org/jira/browse/ARROW-1880
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Python
>            Reporter: Wes McKinney
>            Priority: Major
>
> We've been seeing intermittent flakiness of the variety:
> {code}
> ==================================== ERRORS 
> ====================================
> ______ ERROR at setup of TestPlasmaClient.test_use_one_memory_mapped_file 
> ______
> self = <pyarrow.tests.test_plasma.TestPlasmaClient object at 0x7fb85e67d668>
> test_method = <bound method TestPlasmaClient.test_use_one_memory_mapped_file 
> of <pyarrow.tests.test_plasma.TestPlasmaClient object at 0x7fb85e67d668>>
> [1m    def setup_method(self, test_method):[0m
> [1m        use_one_memory_mapped_file = (test_method ==[0m
> [1m                                      
> self.test_use_one_memory_mapped_file)[0m
> [1m    [0m
> [1m        import pyarrow.plasma as plasma[0m
> [1m        # Start Plasma store.[0m
> [1m        plasma_store_name, self.p = start_plasma_store([0m
> [1m            use_valgrind=os.getenv("PLASMA_VALGRIND") == "1",[0m
> [1m            use_one_memory_mapped_file=use_one_memory_mapped_file)[0m
> [1m        # Connect to Plasma.[0m
> [1m>       self.plasma_client = plasma.connect(plasma_store_name, "", 64)[0m
> [1m[31mpyarrow-test-3.6/lib/python3.6/site-packages/pyarrow/tests/test_plasma.py[0m:164:
>  
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> _ 
> [1m[31mplasma.pyx[0m:672: in pyarrow.plasma.connect
> [1m    ???[0m
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> _ 
> [1m>   ???[0m
> [1m[31mE   pyarrow.lib.ArrowIOError: Could not connect to socket 
> /tmp/plasma_store43998835[0m
> {code}



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

Reply via email to