[jira] [Created] (ARROW-12295) [C++] [Python] Python tests fail if compiled with glog

["Weston Pace (Jira)" <ji...@apache.org>]

Weston Pace created ARROW-12295:
-----------------------------------

             Summary: [C++] [Python] Python tests fail if compiled with glog
                 Key: ARROW-12295
                 URL: https://issues.apache.org/jira/browse/ARROW-12295
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++, Python
            Reporter: Weston Pace


I'm not really sure if this is a problem.  I don't think GLOG should be enabled if using Python anyways.  However, I have it turned on for my local builds since I use it sometimes for instrumentation.  Recently, when running python tests I get the following failure from test_memory.py

 
{code:java}
    def check_env_var(name, expected, *, expect_warning=False):
        code = f"""if 1:
            import pyarrow as pa
    
            pool = pa.default_memory_pool()
            assert pool.backend_name in {expected!r}, pool.backend_name
            """
        env = dict(os.environ)
        env['ARROW_DEFAULT_MEMORY_POOL'] = name
        res = subprocess.run([sys.executable, "-c", code], env=env,
                             universal_newlines=True, stderr=subprocess.PIPE)
        if res.returncode != 0:
            print(res.stderr, file=sys.stderr)
            res.check_returncode()  # fail
        errlines = res.stderr.splitlines()
        if expect_warning:
>           assert len(errlines) == 1
E           assert 2 == 1
E            +  where 2 = len(['WARNING: Logging before InitGoogleLogging() is written to STDERR', "W0408 01:23:43.401316 18454 memory_pool.cc:128] Unsupported backend 'nonexistent' specified in ARROW_DEFAULT_MEMORY_POOL (supported backends are 'jemalloc', 'system')"])

{code}



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