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https://issues.apache.org/jira/browse/ARTEMIS-2990?focusedWorklogId=514723&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-514723
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ASF GitHub Bot logged work on ARTEMIS-2990:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 20/Nov/20 17:10
            Start Date: 20/Nov/20 17:10
    Worklog Time Spent: 10m 
      Work Description: franz1981 commented on a change in pull request #3352:
URL: https://github.com/apache/activemq-artemis/pull/3352#discussion_r527836166



##########
File path: 
artemis-server/src/main/java/org/apache/activemq/artemis/core/postoffice/impl/AddressImpl.java
##########
@@ -84,6 +84,7 @@ public void addLinkedAddress(final Address address) {
       if (linkedAddresses == null) {
          linkedAddresses = PlatformDependent.hasUnsafe() ? new 
NonBlockingHashSet<>() : new ConcurrentHashSet<>();
       }
+      assert !linkedAddresses.contains(address);

Review comment:
       @jbertram yep and iirc surefire add it by default while running tests, 
that's why I have suggested that option




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Issue Time Tracking
-------------------

    Worklog Id:     (was: 514723)
    Time Spent: 7h 20m  (was: 7h 10m)

> optimise performance of wildcard address manager
> ------------------------------------------------
>
>                 Key: ARTEMIS-2990
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-2990
>             Project: ActiveMQ Artemis
>          Issue Type: Improvement
>          Components: Broker
>    Affects Versions: 2.16.0
>            Reporter: Gary Tully
>            Assignee: Gary Tully
>            Priority: Major
>          Time Spent: 7h 20m
>  Remaining Estimate: 0h
>
> A scenario test with lots of short lived concurrent wildcard subs 
> demonstrates some bottlenecks in the wildcard address and binding manager. 



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