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From "Philippe Mouawad (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (AMQ-2397) Strange behaviour of Store Percent Usage and associated Memory Usage controls : Abnormal SystemUsage memory limit reached
Date Thu, 17 Sep 2009 16:58:12 GMT

    [ https://issues.apache.org/activemq/browse/AMQ-2397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=54317#action_54317
] 

Philippe Mouawad edited comment on AMQ-2397 at 9/17/09 9:56 AM:
----------------------------------------------------------------

I tested removing :
         <loggingBrokerPlugin/>
plugin,

"Store percent used" increases to around 100% then naturally goes down to 8% and no error
occurs
so there is at least a bug due to <loggingBrokerPlugin>
And maybe another in this indicator that kind of worries the administrator although limits
are far from being reache.


Thanks for your help.
Philippe
www.ubik-ingenierie.com

      was (Author: pmouawad):
    I tested removing :
         <loggingBrokerPlugin/>
plugin,

"Store percent used" increases to around 100% then naturally goes down to 8% and no error
occurs
so bug seems to come from <loggingBrokerPlugin>

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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