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Posted to issues@activemq.apache.org by "Thomas Lutz (JIRA)" <ji...@apache.org> on 2017/10/31 09:25:00 UTC
[jira] [Commented] (AMQ-6424) Duplicate dead letter queues
[ https://issues.apache.org/jira/browse/AMQ-6424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16226499#comment-16226499 ]
Thomas Lutz commented on AMQ-6424:
----------------------------------
Same problem here, however no reliable test case to reproduce the issue (yet).
> Duplicate dead letter queues
> ----------------------------
>
> Key: AMQ-6424
> URL: https://issues.apache.org/jira/browse/AMQ-6424
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker, KahaDB
> Affects Versions: 5.13.0, 5.13.3, 5.14.0
> Environment: JDK 1.8.0_93 , Windows Server 2012 R2
> Reporter: Berge Stillingen
> Labels: database, journal, mssql, paging
>
> In version 5.14 (and 5.13.3) it appears the broker is able to 'occasionally' create extra DLQ-queues holding duplicate messages.
> Browsing the admin console, you will sometimes see something like this:
> - DLQ.myEventQueue
> - DLQ.DLQ.myEventQueue
> That both hold the samme message ID, eg. ID:ClientABC-61753-1471513949441-1:4:1:3:1
> The one from DLQ.myEventQueue is a standard entry caused by a client transaction rollback.
> The (unwanted) one from DLQ.DLQ.myEventQueue has a
> - dlqDeliveryFailureCause: java.lang.Throwable: duplicate paged in from store for queue://DLQ.myEventQueue
> At some point you can even get a third queue named
> - DLQ.DLQ.DLQ.myEventQueue holding another message with the samme MessageID and the same dlqDeliveryFailureCause
> Reproduce: Haven't found a way to provoke the error. It happens occasionally in a semi-active test environment running with Mule 3.6.2.
> Best guess is that there is some issue with the use of Journaling and synchronization between Kahadb and the MSSQL-database.
> Configuration can be found at
> http://activemq.2283324.n4.nabble.com/file/n4715868/activemq-anonymous.xml
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