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https://issues.apache.org/jira/browse/HIVE-27695?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17769958#comment-17769958
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Stamatis Zampetakis commented on HIVE-27695:
--------------------------------------------
More failed runs due to OOM in TezCliDriver:
*
http://ci.hive.apache.org/job/hive-precommit/job/PR-4750/3/testReport/junit/org.apache.hadoop.hive.cli/TestMiniTezCliDriver/Testing___split_19___PostProcess___testCliDriver_flatten_union_subdir_/
*
http://ci.hive.apache.org/job/hive-precommit/job/PR-4754/1/testReport/junit/org.apache.hadoop.hive.cli/TestMiniTezCliDriver/Testing___split_19___PostProcess___testCliDriver_tez_union_with_udf_/
> 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
> Priority: Major
> Attachments: am_heap_dumps.tar.xz, leak_suspect_1.png
>
>
> 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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