[jira] [Created] (HIVE-27695) Intermittent OOM when running TestMiniTezCliDriver

["Stamatis Zampetakis (Jira)" <ji...@apache.org>]

Stamatis Zampetakis created HIVE-27695:
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             Summary: Intermittent OOM when running TestMiniTezCliDriver
                 Key: HIVE-27695
                 URL: https://issues.apache.org/jira/browse/HIVE-27695
             Project: Hive
          Issue Type: Bug
          Components: Test
    Affects Versions: 4.0.0-beta-1
            Reporter: Stamatis Zampetakis
            Assignee: Stamatis Zampetakis


Running all the tests under TestMiniTezCliDriver very frequently (but still intermittently) leads to OutOfMemory errors.
{noformat}
cd itests/qtest && mvn test -Dtest=TestMiniTezCliDriver
{noformat}

I set {{-XX:+HeapDumpOnOutOfMemoryError}} and the respective heapdumps are attached to this ticket.

The OOM is thrown from the application master and a quick inspection of the dumps shows that it comes mainly from the accumulation of Configuration objects (~1MB each) by various classes.

The max heap size for application master is pretty low (~100MB) so it is quite easy to reach. The heap size is explicitly very low for testing purposes but maybe we should re-evaluate the current configurations for the tests.



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