[jboss-jira] [JBoss JIRA] Closed: (JBAS-1340) Lazily Loading Queues

[Adrian Brock (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBAS-1340?page=all ]

Adrian Brock closed JBAS-1340.
------------------------------

    Resolution: Deferred

Closing features that are (or will be) implemented in JBoss Messaging.
http://jira.jboss.com/jira/browse/JBMESSAGING

If anybody wants to provide a patch that implements these,
the issue can be reopened.

Duplicates of these issues will be closed
unless they provide an implementation/patch.

Patches should first be discussed in the
development forum:
http://www.jboss.com/index.html?module=bb&op=viewforum&f=153
if there isn't already a forum link attached to this issue.

> Lazily Loading Queues
> ---------------------
>
>                 Key: JBAS-1340
>                 URL: http://jira.jboss.com/jira/browse/JBAS-1340
>             Project: JBoss Application Server
>          Issue Type: Task
>      Security Level: Public(Everyone can see) 
>          Components: JMS service
>    Affects Versions: JBossAS-4.0.1 Final, JBossAS-3.2.7 Final
>            Reporter: Adrian Brock
>
> This is a major change that is the last obstacle to JBossMQ scalability.
> The idea is that messages will only be loaded into the server when the destination is activated
> and then only part of the messages are loaded (enough to deal with the current throughput).
> An attempt was made to do this and committed on Branch JBoss_3_2_5_JBossMQ_Lazy but the
> work was abandoned. It does not deal with the more difficult problems.
> In any case, the BasicQueues should be talking directly with the PersistenceManager.
> In fact, I would favour that the BasicQueue implementation is actually pluggable and
> determined by the PM to allow better optimization between these two important layers.

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