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https://issues.apache.org/jira/browse/HIVE-25416?focusedWorklogId=642069&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-642069
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ASF GitHub Bot logged work on HIVE-25416:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Aug/21 00:25
Start Date: 26/Aug/21 00:25
Worklog Time Spent: 10m
Work Description: shezhiming commented on pull request #2555:
URL: https://github.com/apache/hive/pull/2555#issuecomment-905964260
@nrg4878 Could you please review this fix ?
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Issue Time Tracking
-------------------
Worklog Id: (was: 642069)
Time Spent: 20m (was: 10m)
> Hive metastore memory leak cause datanucleus-api-jdo bug
> --------------------------------------------------------
>
> Key: HIVE-25416
> URL: https://issues.apache.org/jira/browse/HIVE-25416
> Project: Hive
> Issue Type: Bug
> Components: Standalone Metastore
> Affects Versions: 3.1.2
> Reporter: shezm
> Assignee: shezm
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.1.3
>
> Attachments: leak.jpg
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> I encountered a memory leak case. The MAT info :
> !leak.jpg!
> Full error message is :
> {code:java}
> Cannot get Long result for param = 8 for column "`FUNCS`.`FUNC_ID`" :
> Operation not allowed after ResultSet closed{code}
> This is because there is a bug in the JDOPersistenceManager.retrieveAll code.
> {code:java}
> // code placeholder
> JDOPersistenceManager{
> public void retrieveAll(Collection pcs, boolean useFetchPlan) {
> this.assertIsOpen();
> ArrayList failures = new ArrayList();
> Iterator i = pcs.iterator();
> while(i.hasNext()) {
> try {
> this.jdoRetrieve(i.next(), useFetchPlan);
> } catch (RuntimeException var6) {
> failures.add(var6);
> }
> }
> if (!failures.isEmpty()) {
> throw new JDOUserException(Localiser.msg("010038"),
> (Exception[])((Exception[])failures.toArray(new Exception[failures.size()])));
> }
> }
> }
> {code}
> In some extreme cases the function of next() does not work . This will
> result in a very large failures ArrayList like as shown above.
>
> The bug detail can see this :
> [https://github.com/datanucleus/datanucleus-api-jdo/issues/106]
> This problem is fixed in datanucleus-api-jdo version 5.2.6. So we should
> upgrade it .
>
>
>
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