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From "Rob Davies (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (AMQ-1742) False positives from ConnectionAudit duplicateChecker when there are gaps in the message sequences received by a consumer
Date Thu, 22 May 2008 11:40:54 GMT

     [ https://issues.apache.org/activemq/browse/AMQ-1742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rob Davies resolved AMQ-1742.
-----------------------------

    Fix Version/s: 5.2.0
       Resolution: Fixed

Patch applied in SVN revision 659082

> False positives from ConnectionAudit duplicateChecker when there are gaps in the message
sequences received by a consumer
> -------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-1742
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1742
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.1.0
>         Environment: all
>            Reporter: Gary Tully
>            Assignee: Rob Davies
>             Fix For: 5.2.0
>
>         Attachments: AMQ-1742.patch
>
>
> a consumer can miss messages with failover transport as the connection audit suppress
duplicates feature is enabled for failover connections.
> When there are gaps in the message sequence that span the audit window or when message
ids are multiples of 64 the BitArrayBin that backs the AuditChecker gets out of sync and can
report false positives, rejecting a duplicate message in error.
> If it is suspected, enable log4j.logger.org.apache.activemq.ActiveMQMessageConsumer=TRACE
to see an event when a duplicate is recieved.

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