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Posted to dev@activemq.apache.org by "matteo rulli (JIRA)" <ji...@apache.org> on 2014/03/31 12:55:14 UTC

[jira] [Updated] (AMQ-5129) Substitute TimeTask with ScheduledExecutorService in org.apache.activemq.thread.Scheduler

     [ https://issues.apache.org/jira/browse/AMQ-5129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

matteo rulli updated AMQ-5129:
------------------------------

    Attachment: proposed-patch.txt

> 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
>         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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