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From "Colin MacNaughton (JIRA)" <j...@apache.org>
Subject [jira] Updated: (AMQ-2255) activemq-flow: Added common Cursored queue implementation to be used by both Shared and Exclusive and Transaction queues.
Date Sun, 17 May 2009 00:18:50 GMT

     [ https://issues.apache.org/activemq/browse/AMQ-2255?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Colin MacNaughton updated AMQ-2255:
-----------------------------------

    Attachment: AMQ-2255patch.txt

Patch file

> activemq-flow: Added common Cursored queue implementation to be used by both Shared and
Exclusive and Transaction queues. 
> --------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-2255
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2255
>             Project: ActiveMQ
>          Issue Type: Improvement
>          Components: Broker
>    Affects Versions: incubation
>         Environment: N/A
>            Reporter: Colin MacNaughton
>             Fix For: incubation
>
>         Attachments: AMQ-2255patch.txt
>
>
> Along with bug fixes to the SharedQueue cursoring implementation, this change:
> -factors queue cursoring out of the shared queue implementation moving it into CursoredQueue.
> -Introduces ExclusivePersistentQueue based on the CursoredQueue mentionned above.  The
exclusive queue will be used by durables, transactions and for non durables that wish to offload
non persistent messages to disk when they fall behind. 
> -This fix also address some performance issues in the SharedQueue/cursoring implementation
that bring it back up to speed with the original non persistent shared queue implementation

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