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https://issues.apache.org/jira/browse/ARTEMIS-3929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17612740#comment-17612740
 ] 

ASF subversion and git services commented on ARTEMIS-3929:
----------------------------------------------------------

Commit fc8a9b952c40ee190f7bfd9f15c0f4af12cb45c7 in activemq-artemis's branch 
refs/heads/2.21.0.jbossorg-x from Clebert Suconic
[ https://gitbox.apache.org/repos/asf?p=activemq-artemis.git;h=fc8a9b952c ]

ARTEMIS-3929 Improving OpenWire clientIDSet

I have seen this contention while I was testing ARTEMIS-3928

This does change any semantics and current tests should be enough to validate 
this change

(cherry picked from commit 568eb70fcda9737b38871a3bff1e111bad784091)

downstream: ENTMQBR-7051


> Changing OpenWireProtocolManager::clientIDs to a concurrent Hash Map
> --------------------------------------------------------------------
>
>                 Key: ARTEMIS-3929
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-3929
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>            Reporter: Clebert Suconic
>            Assignee: Clebert Suconic
>            Priority: Major
>             Fix For: 2.25.0
>
>
> as I was testing ARTEMIS-3928 I found this contention with the clientID 
> hashMap, what was causing the entire broker to freeze when every client was 
> failing.



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