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https://issues.apache.org/jira/browse/AMQ-5129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16497915#comment-16497915
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Gary Tully commented on AMQ-5129:
---------------------------------
it may still be no harm to introduce the scheduled executor even with a pool of
one. It would ensure the thread stays alive but with the changes in AMQ-6979 it
is less likely.
> Substitute TimeTask with ScheduledExecutorService in
> org.apache.activemq.thread.Scheduler
> -----------------------------------------------------------------------------------------
>
> Key: AMQ-5129
> URL: https://issues.apache.org/jira/browse/AMQ-5129
> Project: ActiveMQ
> Issue Type: Wish
> Affects Versions: 5.9.0
> Reporter: matteo rulli
> Priority: Major
> Attachments: proposed-patch.txt
>
>
> Since Timer has only one execution thread, long-running task can affect other
> scheduled tasks. Besides, runtime exceptions thrown in TimerTasks kill the
> only one running thread, bringing down the entire Scheduler.
> I have the suspect that all this could relate to AMQ-3938: sometimes in very
> busy environments I experience exaclty the same problem: a slow leakeage due
> to temp queues that are not deleted. Since
> org.apache.activemq.broker.region.RegionBroker uses a Scheduler to activate
> the purgeInactiveDestinations, a crashed timer could explain why
> purgeInactiveDestinations stops working.
> I attached a tentative patch to migrate timer to ScheduledExecutorService.
> Hope this helps.
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