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From "Rob Davies (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (AMQ-2015) Deadlock in activemq, seems to occur on startup when clients are attempting to connect
Date Wed, 03 Dec 2008 00:01:05 GMT

     [ https://issues.apache.org/activemq/browse/AMQ-2015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rob Davies resolved AMQ-2015.
-----------------------------

       Resolution: Fixed
    Fix Version/s: 5.3.0

Fixed by SVN revision 722683

> Deadlock in activemq, seems to occur on startup when clients are attempting to connect
> --------------------------------------------------------------------------------------
>
>                 Key: AMQ-2015
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2015
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.2.0
>         Environment: ubunutu linux, xen instance with two cores
> Linux amq01 2.6.24-21-xen #1 SMP Wed Oct 22 01:07:57 UTC 2008 x86_64 GNU/Linux
> java version "1.6.0_07"
> Java(TM) SE Runtime Environment (build 1.6.0_07-b06)
> Java HotSpot(TM) 64-Bit Server VM (build 10.0-b23, mixed mode)
>            Reporter: Nicholas Hanssens
>            Assignee: Rob Davies
>             Fix For: 5.3.0
>
>         Attachments: activemq.xml, adump
>
>
> This seems to happen when I start up the instance up and clients are attempting to connect
(e.g. after a live restart)...though I cannot consistently verify that. 
> It gets into a deadlock state. If I look at the queues on the web monitor, it shows that
only one has been created (of the ~30 that the connecting clients will attempt to recreate).
Connections are being opened both over openwire (about 30) and stomp+ssl( a few hundred).

> Thread dump and a copy of activemq.xml is attached.

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