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https://issues.apache.org/jira/browse/AMQ-5663?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timothy Bish closed AMQ-5663.
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Resolution: Incomplete
No test case provided to enable an analysis of the reported leak.
> Memory leak in message batching
> -------------------------------
>
> Key: AMQ-5663
> URL: https://issues.apache.org/jira/browse/AMQ-5663
> Project: ActiveMQ
> Issue Type: Bug
> Affects Versions: 5.10.0
> Reporter: Jaroslav Sedlacek
>
> Memory leak in persistent message batching
> (Queue.messages.persistent.batchList) caused by inconsistent "cacheEnabled"
> flag handling.
> When AMQ is started and queue has more messages then
> maxPageSize/maxExpirePageSize/maxBrowsePageSize, then cacheEnabled flag stays
> "false" and no additional message is stored in batchList.
> If queue has less messages than that, cacheEnabled is set to "true" and it is
> set to false only when AMQ has no more space (see
> AbstractPendingMessageCursor.hasSpace() - by default 70% of heap). It means
> batchList can grow significantly in this case.
> This behaviour was noticed on DLQ kind of queue with no consumer when a big
> bunch of messages was added and it caused OOM.
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