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From "Dejan Bosanac (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (AMQ-2594) Make JDBC store resilient on broker sequence id order
Date Tue, 16 Mar 2010 11:55:45 GMT

     [ https://issues.apache.org/activemq/browse/AMQ-2594?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dejan Bosanac resolved AMQ-2594.
--------------------------------

    Resolution: Fixed

> Make JDBC store resilient on broker sequence id order
> -----------------------------------------------------
>
>                 Key: AMQ-2594
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2594
>             Project: ActiveMQ
>          Issue Type: Improvement
>    Affects Versions: 5.3.0
>            Reporter: Dejan Bosanac
>            Assignee: Dejan Bosanac
>             Fix For: 5.3.1, 5.4.0
>
>         Attachments: AMQ-2594.work-in-progress.patch
>
>
> Currently if the message is sent in a transaction, there's a chance that messages are
added to the cursor out of order (regarding broker seq id). The problem with JDBC store is
that it does message recovery based on this seq id, which can lead to all kind of problems
(such as orphaned messages in the database).
> The solution is to refactor JDBC store to use its own seq generator for recovering purposes
and replace broker seq id, with message id for all other operations

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