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https://issues.apache.org/jira/browse/QPID-7993?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Rudyy resolved QPID-7993.
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Resolution: Fixed
Fix Version/s: qpid-java-broker-7.0.0
Lorenz and I worked together at the changes to remove subscription links on
unsubscribe. The thread-safety of unsubscribe for shared durable subscriptions
and 'null source lookup' for global shared durable subscriptions will be
addressed separately as part of QPID-7996. Closing this JIRA.
> [Broker-J] Links for shared durable subscribers are accumulated in the link
> registry
> ------------------------------------------------------------------------------------
>
> Key: QPID-7993
> URL: https://issues.apache.org/jira/browse/QPID-7993
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: qpid-java-broker-7.0.0
> Reporter: Alex Rudyy
> Priority: Major
> Fix For: qpid-java-broker-7.0.0
>
>
> Only link with name equals to subscription name is deleted from the link
> registry on unsubscribe of shared durable subscription. The other shared
> durable subscription links with names containing index are left in link
> registry forever. As result, such links can accumulate with time and cause
> OOM.
> The steps to reproduce
> * Apply patch from QPID-7992
> * Start the Broker
> * Create shared durable subscriptions with 2 subscribers
> * Close subscribers and unsubscribe the subscription
> * Dump the link registry state using management operation
> {{QueueManagingVirtualHost#dumpLinkRegistry}} . The link for the second
> shared subscriber will be present in the dumped data
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