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https://issues.apache.org/activemq/browse/AMQ-1009?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rob Davies resolved AMQ-1009.
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Fix Version/s: 5.1.0
(was: 5.2.0)
Resolution: Fixed
> incorrect DequeueCount
> ----------------------
>
> Key: AMQ-1009
> URL: https://issues.apache.org/activemq/browse/AMQ-1009
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 4.0.1
> Environment: linux
> Reporter: Winston Huang
> Assignee: Rob Davies
> Fix For: 5.1.0
>
>
> i am seeing this through activemq (4.0.1) jmx:
> Type = Queue
> Destination = XXX
> QueueSize = 2751
> Name = XXX
> DequeueCount = 3575
> MemoryPercentageUsed = 0
> ConsumerCount = 6
> MemoryLimit = 9223372036854775807
> EnqueueCount = 3575
> and after a while, something like this:
> Destination = XXX
> QueueSize = 11421
> Name = XXX
> DequeueCount = 8046
> MemoryPercentageUsed = 0
> ConsumerCount = 6
> MemoryLimit = 9223372036854775807
> EnqueueCount = 13471
> my activemq is started with a clean database and journal. how does the math
> add up among QueueSize, DequeueCount and EnqueueCount? i thought dequeuecount
> + queuesize = enqueuecount. in my case, QueueSize looks more "correct" than
> the dequeuecount is wrong because my consumers are slower than message
> producers.
> more info, when i shutdown my consumers, i see stats like this during one
> test:
> Type = Queue
> Destination = XXX
> QueueSize = 948
> Name = XXX
> DequeueCount = 4224
> ConsumerCount = 0
> EnqueueCount = 2722
> why is DequeueCount greater than EnqueueCount? (the activemq instance was
> started from a clean database and journal)
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