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https://issues.apache.org/jira/browse/HIVE-24860?focusedWorklogId=562988&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-562988
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ASF GitHub Bot logged work on HIVE-24860:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 09/Mar/21 10:36
Start Date: 09/Mar/21 10:36
Worklog Time Spent: 10m
Work Description: pvary commented on pull request #2052:
URL: https://github.com/apache/hive/pull/2052#issuecomment-793690150
> I don't think we should allow to change this config at session level. Idea
was to have a single threadpool for txn heartbeating job. Btw initialization is
also under the static method.
Yeah, `DbTxnManager.initHeartbeatExecutorService()` is static-like - would
it hurt to create the ExecutorService in a static block - using the global
config, and use this service everywhere?
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Issue Time Tracking
-------------------
Worklog Id: (was: 562988)
Time Spent: 1h (was: 50m)
> Shut down DbTxnManager 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: 1h
> Remaining Estimate: 0h
>
> 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.
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