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https://issues.apache.org/jira/browse/HIVE-24860?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Karen Coppage updated HIVE-24860:
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Summary: Shut down HeartbeatExecutorService at session close (was:
DbTxnManager$HeartbeaterThread thread leak)
> Shut down HeartbeatExecutorService at session close
> ---------------------------------------------------
>
> Key: HIVE-24860
> URL: https://issues.apache.org/jira/browse/HIVE-24860
> Project: Hive
> Issue Type: Bug
> Reporter: Karen Coppage
> Assignee: Karen Coppage
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> ### What changes were proposed in this pull request?
> Shut down HeartbeatExecutorService at session close.
> ### Why are the changes needed?
> If the HeartBeaterExecutorService isn't shut down, UDF classes belonging to
> the session's UDFClassLoader (which was the session thread's context
> classloader at HeartBeaterExecutorService creation) could pile up and cause
> Metaspace OOM.
> ### Does this PR introduce _any_ user-facing change?
> No
> ### How was this patch tested?
> Manually
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