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https://issues.apache.org/activemq/browse/AMQ-2397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=54320#action_54320
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Philippe Mouawad commented on AMQ-2397:
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Investigating a little more , "Store percent used" behaviour seems ok.
As I understand the size may vary in the following cases:
- CleanupTask run
- storage of a new message that induces file creation (when file is unused for
example ...)
Variations depend on periodicCleanupTask execution which merges files.
Maybe a little note in docs would be helpful.
So bug is more related to <loggingBrokerPlugin>
Is it a normal that reference store size is taken into account in the size of
"Store percent used" beside the normal Journal ?
Philippe
www.ubik-ingenierie.com
> Strange behaviour of Store Percent Usage and associated Memory Usage
> controls : Abnormal SystemUsage memory limit reached
> --------------------------------------------------------------------------------------------------------------------------
>
> 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
> Attachments: activemq.xml, activemq.zip, activemq520-bug.pdf
>
>
> 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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