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
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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