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https://issues.apache.org/jira/browse/AMQ-4970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13875800#comment-13875800
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Arthur Naseef commented on AMQ-4970:
------------------------------------

Here's the finding:

* The issue is caused, at least in part, by redundant starts of the Queue (i.e. 
two calls to Queue.start)
* On the head, this still happens
* On the older code, the redundant start causes redundant exipred-message 
scheduling which appears to cause the Queue to revive after a removeDestination
** The revival only takes affect on broker restart
** So, the kahadb remembers the destination, but it doesn't revive in broker 
memory
* On the head, the redundant start doesn't lead to the revival; not sure why.

I recommend protecting against redundant starts by adding a flag and check to 
the Queue - using encapsulation to have the Queue keep itself robust.  Even 
without the queue revival, redundant starts of the Queue can only lead to 
problems (such as a scheduler task leak).  I'll submit a patch. 

> Deletion of a queue inaffective across broker restart
> -----------------------------------------------------
>
>                 Key: AMQ-4970
>                 URL: https://issues.apache.org/jira/browse/AMQ-4970
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.9.0
>         Environment: mac osx/mavericks
>            Reporter: Arthur Naseef
>         Attachments: AMQ4970Test.zip, AMQ4970Test.zip, AMQ4970Test.zip
>
>
> Deleting a queue, it is revived from persistent store after a broker restart. 
>  The following steps reproduce the problem:
> * Create a queue (confirmed using the REST client I/F)
> * Shutdown the broker
> * Startup the broker
> * Confirm queue still exists via the hawtio ui (correct operation so far)
> * Delete the queue
> * Confirm queue removed via the hawtio ui
> * Shutdown the broker
> * Startup the broker
> * Confirm queue was not recreated via hawtio ui (failed: queue still exists)



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