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From "Philippe Mouawad (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-2397) Strange behaviour of Store Percent Usage and associated Memory Usage controls : Abnormal SystemUsage memory limit reached
Date Thu, 17 Sep 2009 16:40:12 GMT
Strange behaviour of Store Percent Usage  and associated Memory Usage controls : Abnormal SystemUsage
memory limit reached
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                 Key: AMQ-2397
                 URL: https://issues.apache.org/activemq/browse/AMQ-2397
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker, Message Store
         Environment: JDK 5 1.5.0_14 / Windows XP / Linux
            Reporter: Philippe Mouawad


I attached the full scenario as a PDF to reproduce the issue.

In the attached configuration notice the following:
- org.apache.activemq.store.amq.AMQPersistenceAdapter is declared as a bean to allow Memory
usage control on store
- Advisory messages are activated
- sendFailIfNoSpace is set to true 
- loggingBrokerPlugin is activated


Since I have a listener that consumes messages I don't understand why although AMQ indicated
0 pending message:
- Store percent used  continuously increase
- Memory limit is reached while it was at 0

See attached files
Philippe 
www.ubik-ingenierie.com

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