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From "SPES G200 (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQ-2629) What the relationship is among "CursorMemoryUsage" and "QueueSize"
Date Thu, 25 Feb 2010 16:58:40 GMT
What the relationship is among "CursorMemoryUsage" and "QueueSize"
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                 Key: AMQ-2629
                 URL: https://issues.apache.org/activemq/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
             Fix For: 5.2.0


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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