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https://issues.apache.org/jira/browse/QPID-7998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16241858#comment-16241858
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ASF subversion and git services commented on QPID-7998:
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Commit 3651583a9474a7d7997260897a95ec1432b46956 in qpid-broker-j's branch 
refs/heads/7.0.x from [~lorenz.quack]
[ https://git-wip-us.apache.org/repos/asf?p=qpid-broker-j.git;h=3651583 ]

QPID-7998: [Broker-J][AMQP 1.0] By default, allow global shared subscriptions 
but discard their links on detach


> [Broker-J] Disable global shared durable subscriptions by default
> -----------------------------------------------------------------
>
>                 Key: QPID-7998
>                 URL: https://issues.apache.org/jira/browse/QPID-7998
>             Project: Qpid
>          Issue Type: Task
>          Components: Java Broker
>    Affects Versions: qpid-java-broker-7.0.0
>            Reporter: Alex Rudyy
>            Priority: Trivial
>             Fix For: qpid-java-broker-7.0.0
>
>         Attachments: 
> 0001-QPID-7998-Broker-J-AMQP-1.0-By-default-allow-global-.patch
>
>
> As stated in [1] global shared durable subscriptions can cause an 
> accumulation of subscription links in link registry. The Broker-J currently 
> does not have any functionality for automatic removal of old links. Thus, for 
> v7 the global shared durable subscriptions need to be disabled. If feature is 
> required, it can be enabled but application would need to unsusbcribe from 
> shared durable subscriptions periodically or call Virtual Host operation 
> "purgeLinkRegistry" in order to avoid links accumulation with time.
> [1] 
> https://lists.apache.org/thread.html/729cc17a8b0892d414f456f635ee435e7efeadd14e9123d84e45e3dc@%3Cdev.qpid.apache.org%3E



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