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From "Candy Chiu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AMQ-2568) Embedded broker not shutting down cleanly because of lingering threads
Date Fri, 21 May 2010 02:20:48 GMT

    [ https://issues.apache.org/activemq/browse/AMQ-2568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=59480#action_59480
] 

Candy Chiu commented on AMQ-2568:
---------------------------------

Is this related to the "ActiveMQ Data File Writer" thread not being cleaned up?  This thread
is keeping the Java VM from exiting even after I called Scheduler.getInstance().shutdown().

> Embedded broker not shutting down cleanly because of lingering threads
> ----------------------------------------------------------------------
>
>                 Key: AMQ-2568
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2568
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker, JMX
>    Affects Versions: 5.3.0
>         Environment: Windows
>            Reporter: Fred Moore
>            Assignee: Rob Davies
>             Fix For: 5.4.0
>
>
> See also this thread: http://mail-archives.apache.org/mod_mbox/activemq-users/201001.mbox/%3C4E50CAAD-0600-46FB-B5D0-B623C21A362D@gmail.com%3E
> See also this bug: http://issues.apache.org/activemq/browse/AMQ-1214
> ========================
> we have a 5.3.0 embedded broker that refuses to shutdown cleanly because of lingering
threads. A long time (dozens of seconds) after broker stop() is called,  these threads are
still active:
> * [ActiveMQ Scheduler] (Daemon) Group: main
> * [Timer-0] (Daemon) Group: main
> We discovered that [ActiveMQ Scheduler] can be closed adding this snippet to our code:
> Scheduler scheduler = Scheduler.getInstance();
> scheduler.shutdown();
> After doing this the other lingering thread -- "[Timer-0]" -- did not go away, but at
least we discovered that this timer is JMX related: if we disable JMX connector the timer
disappear.

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