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From "Gary Tully (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-2265) potential OOM (OutOfMemory) on consumer when all prefetched messages expire
Date Fri, 22 May 2009 10:41:50 GMT
potential OOM (OutOfMemory) on consumer when all prefetched messages expire
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                 Key: AMQ-2265
                 URL: https://issues.apache.org/activemq/browse/AMQ-2265
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.2.0
         Environment: all
            Reporter: Gary Tully
            Assignee: Gary Tully
             Fix For: 5.3.0


With a short time to live and a slow consumer, prefetched messages stored on the consumer
expire. These get a delivery ack (so more mesages can be dispatched) but remain in the delivered
list till a real ack is produced, on the consumption of an non expired message. With a large
backlog and very slow consumer each prefetch set can be expired and the delivered list can
grow to produce an ome.

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