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From Jose MarĂ­a Zaragoza <demablo...@gmail.com>
Subject About JMX counters
Date Wed, 04 Sep 2013 13:13:00 GMT
Hi:

I'm using ActiveMQ 5.8 and I'm having a look to JMX counters
I only use topics as destination

I've got a questions:

1)

ExpiredCount is always 0,  in spite of I send all the messages with
TTL flag ( 15000 ms a.k.a 15 s)

MessageProducer producer = session.createProducer(destination);
producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
producer.setTimeToLive(15000);

What is shown by this counter ?
Can I be sure that message are expired ?



2) MemoryUsagePortion is always 1.0  ,

what does it mean ?


3) Sometimes I've observed counters with a negative value , how is
this possible ?
For example:   EnqueueCount with -4

Can I trust in these counters ?  Which one are reliable ?

4)  What are the most important counters for watching them ( in
performace terms ) ?


Thanks and regards

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