[jboss-jira] [JBoss JIRA] Created: (JBMESSAGING-1191) BDB PM memory usage

[Tim Fox (JIRA)]

BDB PM memory usage
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                 Key: JBMESSAGING-1191
                 URL: http://jira.jboss.com/jira/browse/JBMESSAGING-1191
             Project: JBoss Messaging
          Issue Type: Task
            Reporter: Tim Fox
         Assigned To: Tim Fox
             Fix For: 2.0.0 Beta


BDB JE copies any byte arrays and stores them in its cache.

This means the message payload can exist in two places in memory.

To avoid this, after persisting a P message, we can drop the payload, and lazily retrieve it from the cache at delivery.

This technique may also provides a means to avoid paging..

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