Lionel Cons created APLO-309:
--------------------------------
Summary: Messages can be counted multiple times in topic-metrics
Key: APLO-309
URL: https://issues.apache.org/jira/browse/APLO-309
Project: ActiveMQ Apollo
Issue Type: Bug
Environment: apollo-99-trunk-20130221.165856-207
Reporter: Lionel Cons
When using dsubs with wildcard subscriptions the messages are counted multiple
times in the aggregated statistics.
With the following configuration:
<topic id="foo.1"/>
<topic id="foo.2"/>
<dsub id="bar" topic="foo.*"/>
I send one message to /topic/foo.1.
Using the REST API, I can get individual topic metrics:
'id' => 'foo.1',
'dsubs' => [
'bar'
],
'metrics' => {
'dequeue_item_counter' => 0,
'enqueue_item_counter' => 1,
'queue_items' => 1,
'queue_size' => 134,
},
So far so good if we assume that the queue_* metrics come from the attached
dsub.
'id' => 'foo.2',
'dsubs' => [
'bar'
],
'metrics' => {
'dequeue_item_counter' => 0,
'enqueue_item_counter' => 0,
'queue_items' => 1,
'queue_size' => 134,
},
Even with no messages received, the "queue" is not empty.
Querying the aggregated statistics (topic-metrics), I see:
'queue_items' => 2,
'queue_size' => 268,
So this single message has been double counted.
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