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Posted to dev@servicemix.apache.org by "Barrie Treloar (JIRA)" <ji...@apache.org> on 2009/10/19 05:35:53 UTC
[jira] Commented: (SM-1807) Classes, Objects and Threads still
alive after Undeploying a servicemix component
[ https://issues.apache.org/activemq/browse/SM-1807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=54809#action_54809 ]
Barrie Treloar commented on SM-1807:
------------------------------------
I've noticed a similar problem in 3.3.1, uninstall does not stop running threads created during the install process.
Here is a thread dump
"QueueThread:queue://org.apache.servicemix.jca.{urn:mcp:testing}file:sender" daemon prio=6 tid=0x00a39090 nid=0x172c waiting on condition [0x3088f000..0x3088fa98]
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:118)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1841)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:359)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:470)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:674)
at java.lang.Thread.run(Thread.java:595)
"QueueThread:queue://org.apache.servicemix.jca.{urn:mcp}incoming:endpoint" daemon prio=6 tid=0x2af22d58 nid=0x11d8 waiting on condition [0x307cf000..0x307cfb18]
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:118)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1841)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:359)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:470)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:674)
at java.lang.Thread.run(Thread.java:595)
"QueueThread:queue://org.apache.servicemix.jms.{urn:mcp}incoming:endpoint" daemon prio=6 tid=0x28fbfc18 nid=0xce4 waiting on condition [0x3078f000..0x3078fd98]
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:118)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1841)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:359)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:470)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:674)
at java.lang.Thread.run(Thread.java:595)
"QueueThread:queue://org.apache.servicemix.jms.{urn:mcp:testing}file:sender" daemon prio=6 tid=0x2b898db0 nid=0x1420 waiting on condition [0x3068f000..0x3068fb18]
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:118)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1841)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:359)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:470)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:674)
at java.lang.Thread.run(Thread.java:595)
"QueueThread:queue://org.apache.servicemix.jms.{http://activemq.apache.org/camel/schema/jbi}provider:camel:mcp-eip-su-controlBus" daemon prio=6 tid=0x28b90638 nid=0xb50 waiting on condition [0x304cf000..0x304cfb18]
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:118)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1841)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:359)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:470)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:674)
at java.lang.Thread.run(Thread.java:595)
"QueueThread:queue://org.apache.servicemix.jca.{http://activemq.apache.org/camel/schema/jbi}provider:camel:mcp-eip-su-controlBus" daemon prio=6 tid=0x28f6d408 nid=0x7e0 waiting on condition [0x3040f000..0x3040fc18]
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:118)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1841)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:359)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:470)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:674)
at java.lang.Thread.run(Thread.java:595)
"QueueThread:queue://org.apache.servicemix.jca.{urn:mcp}outgoing:endpoint" daemon prio=6 tid=0x2878b390 nid=0x828 waiting on condition [0x3038f000..0x3038fb18]
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:118)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1841)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:359)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:470)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:674)
at java.lang.Thread.run(Thread.java:595)
"QueueThread:queue://org.apache.servicemix.jms.{urn:mcp}outgoing:endpoint" daemon prio=6 tid=0x2bc35408 nid=0x14e4 waiting on condition [0x300df000..0x300dfa18]
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:118)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1841)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:359)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:470)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:674)
at java.lang.Thread.run(Thread.java:595)
> Classes, Objects and Threads still alive after Undeploying a servicemix component
> ---------------------------------------------------------------------------------
>
> Key: SM-1807
> URL: https://issues.apache.org/activemq/browse/SM-1807
> Project: ServiceMix
> Issue Type: Bug
> Components: servicemix-lwcontainer
> Affects Versions: 3.2.1
> Environment: Windows XP , Fedora 10
> Reporter: Soumya Pal
>
> Hi,
> I noticed that after I undeploy a servicemix component (i.e. say delete the zip from teh hotdeploy folder) the component is no longer available as a Service over AMQ. However the classes that were loaded by it are not unloaded.
> In my LWC component I had a Timer Thread running (java.util.Timer) which refreshes an in memory Hashmap object. Now all the objects were created when the component was deployed as a service.
> Now when I undeploy the service, this Thread still continues running. The HasMap object it refers to, also continues to reside in-memory, as I can see from the logs. Though it won't cause any harm even if I re-deploy the zip again(which in turn instatiates it's own set of objects again), should servicemix not kill all references to objects or unload classes when the component service is un-deployed?
> or is it a bug in smix 3.2.1 ? Or am I missing soem configuration which can help me get rid of this. Only issue is if I continue hotdeploying or updating the component zips, the classes loaded and objects in JVM keep on increasing.
> Any help will be greatly appreciated
> Thanks
> Soumya
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