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From "Gary Tully (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (AMQ-2540) Duplicate suppression lack of recovery with JDBCStore can result in "hung" queue afer failover of outstanding send or transaction.
Date Mon, 21 Dec 2009 12:51:55 GMT

     [ https://issues.apache.org/activemq/browse/AMQ-2540?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gary Tully resolved AMQ-2540.
-----------------------------

       Resolution: Fixed
    Fix Version/s: 5.3.1

resolved through 891582,891622,892194,892242,892291,892729,892759

all on 5.3.1, thanks dejan

> Duplicate suppression lack of recovery with JDBCStore can result in "hung" queue afer
failover of outstanding send or transaction.
> ----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-2540
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2540
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Message Store
>    Affects Versions: 5.3.0
>            Reporter: Gary Tully
>            Assignee: Gary Tully
>             Fix For: 5.3.1, 5.4.0
>
>
> during failover, when a commit or send reply is lost, such that the broker has completed
the operation but the client does not see the reply, the operation and context will be replayed.
This results in duplicate messages that should be suppressed. The AMQ reference store does
this correctly but the audit check in the JDBCMessageStore does not do recovery so it is unaware
of past events. 
> Adding some replay capability to the audit resolves this as it can then suppress duplicated.
> The audit depth should limit the replay depth.
> {code}<jdbcPersistenceAdapter dataSource="#...." maxProducersToAudit="10000"/>{code}

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