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Posted to dev@activemq.apache.org by "Sai (JIRA)" <ji...@apache.org> on 2014/10/17 02:44:33 UTC

[jira] [Commented] (AMQ-5396) Linkstealing causes deadlock when old client disconnects before link stealing adds the connection

    [ https://issues.apache.org/jira/browse/AMQ-5396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14174543#comment-14174543 ] 

Sai commented on AMQ-5396:
--------------------------

attached the jstack which shows the deadlock

> Linkstealing causes deadlock when old client disconnects before link stealing adds the connection
> -------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-5396
>                 URL: https://issues.apache.org/jira/browse/AMQ-5396
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.11.0
>            Reporter: Sai
>         Attachments: jstack.txt, linkstealing-deadlock.patch
>
>
> During link stealing in progress if the old client(or connection) issues a disconnect can cause a deadlock due the order in which the locks are obtained on RegionBroker.addConnection and TransportConnection.processRemoveConneciton.



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