[jira] [Created] (IMPALA-12575) test_executor_group_num_queries_executing_metric fails in UBSAN build

["Zoltán Borók-Nagy (Jira)" <ji...@apache.org>]

Zoltán Borók-Nagy created IMPALA-12575:
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             Summary: test_executor_group_num_queries_executing_metric fails in UBSAN build
                 Key: IMPALA-12575
                 URL: https://issues.apache.org/jira/browse/IMPALA-12575
             Project: IMPALA
          Issue Type: Bug
            Reporter: Zoltán Borók-Nagy


test_executor_group_num_queries_executing_metric fails in UBSAN builds.

The test started to fail after Small String Optimization (IMPALA-12373) was merged, since then it fails consistently.

Error Message
{noformat}
AssertionError: Expected single pid but found 12462, 13670
{noformat}
Stacktrace
{noformat}
custom_cluster/test_executor_groups.py:519: in test_executor_group_num_queries_executing_metric
    self.cluster.impalads[-1].kill()
common/impala_cluster.py:431: in kill
    LOG.info('Killing %s with signal %s' % (self, signal))
common/impala_cluster.py:371: in __str__
    return "<%s PID: %s (%s)>" % (self.__class_name(), self.__get_pid(),
common/impala_cluster.py:401: in __get_pid
    assert len(pids) < 2, "Expected single pid but found %s" % ", ".join(map(str, pids))
E   AssertionError: Expected single pid but found 12462, 13670
{noformat}




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