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From "Timothy Bish (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (AMQ-2629) What the relationship is among "CursorMemoryUsage" and "QueueSize"
Date Tue, 23 Aug 2011 21:39:29 GMT

     [ https://issues.apache.org/jira/browse/AMQ-2629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Timothy Bish closed AMQ-2629.
-----------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 5.2.0)

The supplied comment answers the question nicely, thanks.

> What the relationship is among "CursorMemoryUsage" and "QueueSize"
> ------------------------------------------------------------------
>
>                 Key: AMQ-2629
>                 URL: https://issues.apache.org/jira/browse/AMQ-2629
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Message Store
>    Affects Versions: 5.2.0
>         Environment: Windows2003 server - JDK 1.5.0_09-b03
>            Reporter: SPES G200
>
> Hi to everybody,  
>   
> In my application, that has 2 fast producers and 1 slow consumer, after some hours of
job, where "Queue Size" various among 0 and 1000, "CursorMemoryUsage" it begins to increase
him. This phenomenon provokes a deceleration both of "Enqueue" that "Dequeue", and even if
they are stopped the producers the speed of "dequeue" it doesn't increase. When "Queue Size"
returns to 0, "CursorMemoryUsage" it doesn't decrease.  
>   
> When this phenomenon happens I have seen that also her "Heap Memory Usage" it grows.
 
>   
> Do you have some explanation to this phenomenon?  
> What the relationship is among "CursorMemoryUsage" and "QueueSize."  
>   
> Thanks in advance 

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