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From "Rob Davies (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (AMQ-2377) MemoryPercentUsage not decremented correctly, prevents producer from unblocking.
Date Mon, 07 Sep 2009 14:14:14 GMT

     [ https://issues.apache.org/activemq/browse/AMQ-2377?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rob Davies resolved AMQ-2377.
-----------------------------

       Resolution: Duplicate
    Fix Version/s: 5.3.0
         Assignee: Rob Davies

Duplicate of https://issues.apache.org/activemq/browse/AMQ-1061 and others - fixed in 5.3

> MemoryPercentUsage not decremented correctly, prevents producer from unblocking.
> --------------------------------------------------------------------------------
>
>                 Key: AMQ-2377
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2377
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.2.0
>         Environment: Ubuntu 9.04 , Java 1.6
>            Reporter: Allen Lau
>            Assignee: Rob Davies
>            Priority: Minor
>             Fix For: 5.3.0
>
>
> When messages in a queue exceed the threshold limits, the MemoryPercentUsage value shoots
up over 100%.   The producer then blocks and will not send again until the MemoryPercentUsage
value is below 100%.   The problem is that MemoryPercentUsage is not decremented correctly.
  
> For example, if the MemoryPercentUsage value is 150%.  If consumers start consuming messages
off the queue, the MemoryPercentUsage value is decremented by 1 for each message consumed.
  Shouldn't this value be decremented by the amount of memory freed up by the consumed message?

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